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SERVICE MANUAL 6231
ELECTRIC SWITCH MACHINE
YM·4
DUAL CONTROL, TRAILABLE
THIS MANUAL SUPERSEDES SM-6231 DATED OCTOBER, 1982
November, 1986 (Rev. 1/87)
ID1149A/DN0007A
UNION SWITCH & SIGNAL DIVISION
D 11/87-75-2430-3
AMERICAN STANDARD INC I PITISBURGH, PA 15237
SERVICE MANUAL 6231
ELECTRIC SWITCH MACHINE
YM·4
DUAL CONTROL, TRAILABLE
THIS MANUAL SUPERSEDES SM-6231 DATED OCTOBER, 1982
November, 1986 (Rev. 1/87)
ID1149A/DN0007A
UNION SWITCH & SIGNAL DIVISION
D 11/87-75-2430-3
AMERICAN STANDARD INC I PITISBURGH, PA 15237
UNION SWITCH & SIGNAL
REVISIO~ INDEX
This service manual supersedes all J?reviously issued 6231 manuals, and
has been reissued to provide new and/or corrected data. l)estroy all
previously issued 6231 manuals. Future revisions to this manual will be
handled by addendum, wherein a Revision Index page will be provided
listing all revised oages.
?l\GE
'3-8
REVISED
1/87
J
.
UNION SWITCH & SIGNAL
contents
section
I
II
Page
GENERAL INFORMATION
1
1.1
1.2
1.3
l
l
1
1
1
2
INSTALLATION AND ADJUSTMENT
5
2.1
2.2
2.3
2.4
2.5
5
5
6
6
8
8
2 .6
[[I
IV
V
VI
INTRODUCTION
DESCRIPTION
SPECIFICATIONS
1.3.1 Physical Characteristics
1.3.2 Operating characteristics
1.3.3 Electrical Data for components
GENERAL
MOUNTING
HANDLEVER CUTOUT SWITCH
SWITCH ROD ADJUSTMENT
ELECTRIC AND CONTROL ADJUSTMENTS
2.5.1 Motor Limit and Indication switch Adjustment
2.5.2 Electromagnetic clutch Adjustment
INI'rIAL LUBRICATION
9
10
OPRRATION
12
3.1
3.2
12
12
MODES OP OPERATION
MANUAL OPERATION
OPERATING PRINCIPLES
u
4.1
4.2
4.3
4.4
4.5·
4.6
11
GEl\lERAL
SWITCH OPERATING MECHANISM
MANUAL OPERATION
HANDLEVER CUTOUT DEVICE
OVERLOAD CUTOUT RELAY
TRAILING OPERATION
13
13
15
16
16
FIELD MAINTENANCE
17
5.1
17
GENERAL
SHOP MAINrENANCE
18
6 .1
6.2
6.3
18
18
18
GENERAL
BEVELED GEAR WEAR PATTERN
ALTERNATE BEVELED GEAR ALIGNMENT
VII
RECOMMENDED TOOL LIST
21
VII[
DIAGRAMS
22
APPEN!HX A
PARTS LIST
i
m
UNION SWITCH & SIGNAL
,,rr
/
Withbut Position Indicator Lights
With Position Indicator Lights
YM-4 oual Control Electric switch Machine
ii
UNION SWITCH & SIGNAL
SECTION I
GENERAL INFORMATION
1.1
INTRODUCTION
The YM-4 is a trailable, dual control electric switch machine for rail transit
systems and yards where an electrically powered machine is required. It is
designed for use in transit yards, receiving and departure areas of classification
yards, industrial sidings and flat switching or storage yards.
1.2
DESCRIPTION
The mechanism of the YM-4 is totally enclosed in a weatherproof all steel case
measuring, with standard cover, 13-1/16" high x 12-7/8" wide x 43-1/2" long.
Mounting lugs are provided on both sides of the case for firmly securing the
machine between the ties, providing a mounting arrangement that lowers the machine
profile to 7-5/16" above the top of the ties. The same machine and operating rod
can be used in right hand or left hand applications. The typical YM-4 track
layout has a straight operating rod which connects to the basket. The stroke of
the operating rod is internally adjustable from 3-1/2" to 6" and allows the YM-4
to be utilized with different switch throws.
The major components of the YM-4 switch machine (Figure 1-1) are the case,
motor/clutch/gearbox/main shaft assembly, main crank assembly, toggle spring
assembly, hand-throw assembly, and controls/wire harness.
Two pairs of independently adjustable control switches are provided. One pair
consists of SPDT switches which are used in a holding circuit, and one pair Jf
DPDT switches which are used for motor cutout, non-vital point indication, and
local indication (lights). (Also optional with NWP/RWP relay control.)
A hand throw lever is provided to operate the switch machine when manual operation
becomes necessary, or desired.
An optional cover is available with position indicator lights (bulbs are to be
ordered separately.) Either cover can be removed to provide conveniP.nt access for
maintenance and adjustments.
The serial number is stamped on the mounting flange (see Figure 1-1).
1.3
1.3.1
SPECIFICATIONS
Physical characteristics
a.
b.
1.3.2
Overall Dimensions
Weight (Approx.)
see Figure 1-2
450 pounds
Operating Characteristics
a.
b.
c.
a.
Stroke
Operating Time
Force on Switch Rod,
Extreme Position
Trailing speed
Adjustable from 3-1/2 to 6 inches
2 seconds
1,000 pound minimu~
5 MPH Max.
6231, p. l
ffi
m
UNION SWITCH & SIGNAL
l.3.3
a.
Electrical D~ta
Motor
Voltage
Horsepower
Hz
Phase
Current:
Full Lo11d
In Rush
Clutch Slip (Max.)
*
b.
115 VAC
230 VAC
1
1
60
60
1
l
14.6
42.0 (lOOm sec.)
16.0
l
7.1
28.5 (125m sec.)
8.0
10.0
44.0 (200m sec.)
12.5
Motor will op·er9.te s9.tisfoctorily on volt9.ges within 10% of
m.mepl9.te V9. lue.
Reversing Contactor - AC Control (115 VAC)
(Contactor will operate at 70% of rated voltage.)
R9.ting
Coil Current
Cont'lcts@ ll5 volts 9.C
Auxili'lry Cont'3.cts@ 115 volts ac
c.
115 VDC
1 HP
150 Mill hmps
15 Amps
5 Arnps
Reversing Contactor - DC Control
(Contactor wi.11 oper'3.te at 80% of nomin<il volhge with 10% overload.)
Rating
Coil Current
Voltage (Minimum)
Cont9.cts
Auxili~ry Contacts
24-28Vdc
121/dc
1 HP
1 HP
.375 Amps
9.6 Vdc
15 Amps
5 Amps
.192 Amps
22.5Vdc
15 Amps
5 Amps
d.
Control '3.nd Indic9.tion Switches Sl, S2, SL, SR
Type: 3n'3.p Action Switches (SPDT, DPDT)
Rating - 10 Amps@ 125/250 VAC
Vibration Resistance 25G's@ 2,000 CPS
M:ech'lnic<i l [,ife 10,000,000 Cycles Minimum
Elec. Life 750,000 Cycles
Overtr'3.vel 0.015 Min.
Release Force 4 oz. ~in.
Ambient Temp. R<:1.nge -65°F to 275°F
e.
Clutch
Volt'l.ge 90 VDC Rated (Oper'3.ted from DC or rectified AC)
28 Vdc + 2Vdc
Clutch OperSJ.ting Volt9.ge
Resist·rnce (Ohms)
452
0.199 ·=i.t 90 Vdc
Amps
W'l t t:1
l8
-80°1'' to JOIJ') [•'
Ope t'"l t Lng 'L't;rnp. Be 1 r ing:1
6231, p. 2
LIFTING
HOLE
FROST HEATER
AND TOGGLE SWITCH
(OPTIONAL)
MOUNTING
FLANGE/
HAND THROW
ASSEMBLY
c
z
0
z
I
;
.
"CS
w
TERMINAL
STRIP
•i5
0
z
>
rFigure 1-1.
115V AC YM-4 Electric ·switch Machine, Internal View, cover Removed
m
UNION SWITCH & SIGNAL
,_____ 1 0 " - - - -
13/16" DIA.
I
I
-;0
r
12-7/8"
20"
I
3-9/16"
fl__
511
-------~---i-l
T_·_-e______ :.112·-·-
I_ _ _ _
_,
• 1
I
.f
I
I /
V '
!
'
I
22" - - - - - - - - ~
CENTER OF TIE
Figure 1-2.
6231, p. 4
CENTER OF TIE
Mounting Dimensions
UNION SWITCH & SIGNAL
ffi
SEC'l'.LON 11
lNS'l'ALLA'l' !ON AND ADJUSTl•1EN'r
2. l
Gt:;NEHAL
A tyf:-)1.c..:a.1 ttack. Layout µlan ut the YM-4 °,;witch machiri~ 1.s ::;huwn 1.n £,'igure 8-2 with
opt.:.ona:.. U:, circuit controller and junction box. Detail. 111ocmt1.ng plans a1.,prov•::d
by the railroad shoui.d be followed when installing the n1<.1chine.
No special toul.s
are required for instaliatiou. Mounting dimensions for the switch machin(~ are
sho.vn .u1 :r~igure l-2.
ARFA yard signal equipment clearance diagram 1s shown 1.n
Fi.gur~ 2-l.
AREA YARD SIGNAL EQUIPMENT
CLEARANCE DIAGRAM
YM-4 WITH POSITION INDICATOR LIGHTS
---,fri
AREA YARD SIGNAL EQUIPMENT
CLEARANCE DIAGRAM
YM-4 WITHOUT POSITION INDICATOR LIGHTS
r'iyure 2-1.
2. 2
Ai:t:tr
Clearance Diagram
t10UN'l'1NG
the 111achine has been properly assembled for the lHyout, f:Jroceeu as fol lows:
NO'rE
'l'he throw of the machine is r ecornmended to be
.i..-inch greuter than the th.co..1 of the poi11ts.
a.
Place the rubber boot (bellows) 1.tr~m 32, Figure A-1 (in the Appendix) on
the operat1.ng rod, having the open e11d facing aw;,y from the Gwitch.
b.
P.i.ctce t;1e metal bracket, 1.tem 33,
c.
ln:;ta.L.1. rod on switch auJuster bracket.
c.1.
Sliue operating rod through opening in case and mate with the eyebolt.
OV<.!t
top ot th~! rubber hoot.
6231, p.
~
UNION SWITCH & SIGNAL
2. 3
2. 4
e.
Mount ci:1d fasten the machine un ties .in accurdance with luyout }Jlam;
applyi.1y to the particular location.
i:.
Con11ect the external wir 1ng to the terminal boara in accordance with the
wiring diagram applying to the particular location. Main terminal board
wiring scher.1e 1.s stia.vn in Figures 8-3 throug:1 9-9. Approved wiring plan:;
should be foll.ow,~ for actual wiring. However, these aiagr ams can serve
as an &iu in developing th~ master pld;)S.
g.
Adjust the eyebolt according to t::1e total movement of the switch points.
l<efer to Figure 2-2, anct proceed as follows:
l.
Rerer to the table in F.1.gure 2-2 and determine "A" dimension.
"A"
a:.mension wil.L vary depending on thra,., uf points.
.r'or exam?le, 1 t
the throw of the points is 4-3/4 inches, "A" uimension shou.!.<1 be
3. 95 inches.
2.
Adj..ts t eycbol t to proper "A" di.mens io,1 by turuiny eyebo!. t in or
out.
"A" dimension i::; the distance from the mach1i11::ct sur tace ot the
s!ia. ft lo the t1. p o i the 12yebo.L t.
h.
Attach the operating rod to the adjustable eyebolt with pin provided.
Secure \vith cotter pin.
i.
Att<.1:;h meta.l urdcket and rubbt:r boot to ca~e with screws that dre holcting
the sh,pprng 1,1latc.· over the case opening.
HA.ND LcVEl{ CU'l'OU'l' Sr~ l'l'CH
a.
Check tht! a<.1Juctme11c of the hano-lever cutout switch to make certain the
switch uperates as the foot-pedal is depressed. '1'::1e ::;witch muse "cli.ck"
before the top uf the foot-pedal clears the hand-throw lever to assure
that simultaneous handlever and power operation ';'ill not occur.
b
With tne hand-tht aw lever out of the foot-pedal stand, try to close the
foot-peual to make sure the pedal will not close and the switch does not
11
c.:.1ck t i .
.·
SW l'l'CH i<UlJ AUJUS'l'MEN'l'
WARN!NG
\'Jhile making switch rod adjustments, make sure the handlever cutout switch is operating per paragraph 2.3 anc.
foot-1,1eual is rully depressed.
inadvertent operation could
cause personal injury.
/\lt.t.!r
the switch nuchine hal::> oeen instal.leo c1nd wirco in <1ccurd<.1nce with the
Lippruv,.Jd swi.tch plans, 1c mm;t be adjusted to obtai11 proper operation and uevcloµ
the, 1 equ.ueu turc;es 011 the uperat111g rod. Use the following procedure to µroduct.•
the :;i'ec1i11]d ho1d1ny Loree 011 the switch rud (::;ce k'1gure H-2).
a.
::ict ths: tl,.mdiever Ho the opera ting rod is in the ti in" pos i. t1on .:.in.J r.he
switch t,1:J.u1t against the near rail.
'l'ighten the far basket nut until au
the sli.tck 1s 1. emoveu from the switch rou com2(Jtwn ts.
6131, p. 6
UNION SWITCH & SIGNAL
Throw
of Points
Recommende1 Play
In Basket (Total)
Inches
2
2-1 /4
2-1/2
2-3/1~
3
3-1/4
3-1/2
3-3/4
4
4-1/4
1~-1 /2
1~-3/4
5
"A" Dim.
Throw of
Machine
"Inches
Inches
1"
2
2.18
2.36
2.54
2. 71
2.89
1"
1"
1"
1"
1"
1"
1"
3.25
3.43
3.60
3. 78
3.96
4 .14
3
3-1/4
3-1 /2
3-3/4
4
4-1/4
4-1/2
4-3/ 1~
5
5-1/4
5-1/2
5-3/4
6
1"
1"
1"
1"
1"
3.01
DIM.A
1
Note:
Adjust "A" Dimensiori to Corresponding Throw of Points
Fi.gure 2-2.
Machine Stroke Adjustment
623 1, p. 7
m
m
UNION SWITCH & SIGNAL
2.5
b.
Move the oper'3. tiag rod to the "out" position with the hand lever 'lnd move
the switch points against the far rail. Tighten the near basket nut
until all the slack is removed from the switch rod components.
c.
Return the operating rod to the "in" position by the handlever. Thls
should move the near point up against the ne3.r stock r'3.il. Tighten the
f"l.r basket nut until the main crank has rotated approximately 5 degrees.
d.
Fasten the opers.ting boot to the operating rod with the band clamp.
Compress the boot to a comfort9.ble position in toward the machine.
e.
[fove the operating rod to the "out" position by the handlever. Check to
make sure the boot is not overextended. Tighten the near basket nut
until the main cr3.nk has rotated approximately 5 degrees.
f.
Operate the switch several times by hand to see if the tensiou is
m3.i.ntained. If i t is, tighten the basket lock nuts and again check for
tensions.
ELECTRIC AND CONTROL ADJUSTMENTS
After completion of the switch rod adjustments described in paragraph 2-4, check
the motor limit '3.nd inclication switches as follows (these switches ·1re preset at
the factory):
2.5.l
Motor Limit and Indication Switch Adjustment
a.
Loosen button head cap screw on four cams on the miiin crank (item 14,
"Figure A-1).
b.
lfotate cams to ins11re limit switches "click" on and off.
c.
If switches don't click, loosen the two 1/4-20 nuts and bolts 3.nd adjust
the switches in or out from the cr11nk until the cams will activate the
appropriate switch. Tighten the 1/4-20 nuts and boltr3.
Note
Maintain proper over travel on switch after
adjustment (See paragraph 1.3.3.d.).
d.
Throw the switch machine so the main crank is at mid-stroke (toggle
point). Rotate the two inside cams for switch Sl and S2, to activate,
(deactivate) the switches simultaneously, then tighten screws.
e.
Complete stroke to the "out" position. Rotate the cam, for switch SL,
(c·lse side), to '3.ctiv-ite switch. Rotate cam <.1.n addition'll 10°.
r.
H•1nd th,·uw thn ffi'lchino to tho "in" po3i.tion or ttw m~1ln cr:111k. Rot,1to
the c~m, for switch SR, (on the ge'lr side), to ~ctivat~ the switch.
Rotate the c':l.m an addition'3.l 10°.
g.
Tighten the (4) four button head cap screws.
UNION SWITCH & SIGNAL
2.5.2
Electromagnetic clutch Adjustment
a.
Clutch Operating Voltage
CAUTION
THE FOLLOWING MEASUREMENTS ARE MADE WITH THE MACHINE IN
OPERATION. BE CAREFUL NOT TO COME IN CONTACT WITH ANY
MOVING PARTS OR ELECTRICAL TERMINAL POSTS.
NOTE
Step 1 is needed only on 230 volt machines.(N451613-0103,-0107,-0lll)
1.
Measure the line voltage across AAR terminals 13 and 15 with the
machine in operation.
NOTE:
2.
Make several measurements to confirm readings.
Measure the DC clutch operating voltage, (+) lead to clutch wire on
variable resistor (-) lead to Pin 1 on base of plug-in power supply
(see Figure 2-3 for Pin 1 reference).
0
8
0
0
0
8
0
8
0
CLUTCH MINUS(·) TEST POINT
0
Figure 2-3.
Top View of Octal Socket Pin Layout
6231, p. 9
m
UNION SWITCH & SIGNAL
For all 115 VAC and 115 voe machines, the clutch voltage is in within
tolerance if it is 28 + 0.2 Vdc.
For the 230 VAC machines (N451613-0103, -0107 and -0111), the clutch
voltage is in tolerance if it falls within the limit shown in Table 2-1.
Table 2-1
AC Input Voltage
200
205
210
215
220
225
230
235
b.
-
205
210
215
220
225
230
235
240
DC clutch voltage
- NOMINAL -
26.0
25.7
27.3
27.8
28.2
28.7
29.2
29.8
-
26.7
27.3
27.8
28.2
28.7
29.2
29.8
30.0
Clutch Voltage Adjustment
1.
The clutch voltage may be adjusted by removing power from the switch
machine and relocating the position of the slider on the wirewound
resistor (item 71 on page A-5/A-6 or B-5).
2.
Re-test the clutch voltage to verify that the voltage is wit~iA
limits of 28 + 0.2 voe for 115 volt machines, or Table 2-1 for 230
volt machines-:.NOTE: Be sure to tighten the set-screw on the resistor slider when
final adjustment is complete.
2.6
INITIAL LUBRICATION
Before leaving the factory, all working parts of the machine are well lubricated.
Unpainted and unplated parts are coated with a special lubricant designed to
protect these parts against corrosion.
To insure reliable operation, lubricate the switch machine according to this
section before placing in service. ouring service, lubricate at periodic
intervals determined by the railroad. use the following lubrication chart.
6231, p. 10
UNION SWITCH & SIGNAL
LUBRICATION CHART
Point of
Application
Type of
Lubricant
Method
Apply To
A.
(6 Locations)
Grease, Alemite M7650-0l
(A041089)
Grease Gun
Grease Fittings
8.
(2 Locations)
Grease, stazon M M7652-2
(A041477)
Brush
All gear tooth
surfaces
c.
(1 Location)
Machine Oil (lOW-30
or equivalent)
Oil can
Bushing, Pin
Figure 2-4.
Lubrication Points
6231, p. 11
m
UNION SWITCH & SIGNAL
SECTION IIT
OPERATION
3.1
MODES OF OPERATION
The switch machine has basically three modes of operation:
hand-throw operation, and trailing operation.
3.2
power operation,
a.
The power mode electrically drives the main shaft 1aoo and rotates the
main crank 90°.to move the operating rod and switch points.
b.
The hand-throw mode manually operates the points the same as electrically
by rotating the main shaft. But during the hand-throw operation, only
the gearbox is driven. The motor is disconnected from the drive trai~
due to the electro-magnetic clutch. This clutch is only energized
{engaged) when the motor is energized. The cutout switch will break the
circuit to the motor reversing contactor preventing the motor from being
energized.
c.
When the switch points are trailed, the operating rod rotates the main
crank, thus compressing the toggle spring to mid-stroke and then allows
the toggle spring to complete the operation.
MANUAL OPERATION
To operate the YM-4 manually, follow this procedure:
1.
Remove padlock from foot-pedal latch.
2.
oepress foot-pedal to unlatch the hand-throw l~ver.
3. 1 Raise hand-throw lever and complete the movement to operate the switch.
Note that slightly beyond mid-stroke, the spring toggle action becomes
operative to complete the stroke.
4.
Rotate lever counterclockwise and engage lever into latch stand and
secure with lock.
The electric motor does not function during manual operation. And during electric
operation, the hand-throw lever does not go through the cycle. The hand throw
lever must be in its latch with the foot pedal closed during trailing operation
{see paragraph 4.6).
6231, p. 12
UNION SWITCH & SIGNAL
SECTION IV
OPERATING PRINCIPLES
4.1
GENERAL
The switch points are either thrown electrically (refer to para. 4.2) or manually
(refer to para. 4.3). The points are held in position by a 600J/in. toggle spring
mounted on the main crank, which is compressed 1-2/3 inches. (NOTE: The clutch
is deenergized (disengaged) when the motor is deenergized to facilitate trailing
and hand operation.) The toggle spring maintains a minimum holding force to the
closed points of 1,000 pounds. The switch throw is adjustable from 3-1/2" (with
basket) to a full 6 inches. Operating time is approximately 2 seconds. Motor
control and switch indication are obtained from contacts operated by cams on the
main crank and are directly associated with the switch position.
The following paragraphs provide brief operating principles of the YM-4 Switch
Machine. This information may be helpful in troubleshooting and maintaining the
switch machine.
4.2
SWITCH OPERATING MECHANISM (See Figure 1-1)
The electric motor, controlled by an electromagnetic, reversing contactor, drives
the gear box through an electromagnetic clutch. An output gear in the gear box
meshes with the spur gear on the main shaft assembly, rotating the main shaft
180°. Through a set of bevel gears, the main shaft drives the main crank,
rotating the main crank 90°. The operating rod, which is connected to the
eyebolt on the main crank, is then driven a predetermined distance.
During the first half, (45°), of the switch operating stroke, the toggle sp~ing
is compressed and the toggle mechanism is rotated to dead-center. As the machine
continues, the toggle mechanism is driven past center, where upon the spring force
assists the motor in completing the stroke. Since the holding force of the spring
is equal to that used at spring switches, the motor is turned off and the clutch
disengaged at the end of the stroke. The clutch is engaged only while throwing
the switch by power.
4.3
MANUAL (HAND LEVER) OPERATION (See Figure 4-1)
Removal of the padlock from the foot-pedal latch and subsequent foot depression of
the latch will unlatch the hand-throw lever. A plunger is directly connected to
this latch which will, through a limit switch, interrupt the electrical circuit to
the motor reversing contactor and open a circuit to inform the controller that the
switch machine is in manual mode of operation. An external interlocking lever
prevents accidental closure of the latch while the hand-throw lever is out of the
lever stand. When the hand-throw lever is removed from its stand, the cam surface
on the lever hub forces the interlocking lever in a clockwise direction, thus not
allowing the latch stand to be closed.
6231, P• 13
m
m
UNION SWITCH & SIGNAL
B
A
B
~
<a.) ( b.>
---~-
D
Figure 4-1.
6231, p. 14
(d.) (C.)
A
Disengagement Feature of the Hand-Throw Lever
UNION SWITCH & SIGNAL
The hand-throw lever rotates the main crank through bevel gears. Use of a
disengagement collar on the main shaft permits the machine to complete its strol{e
after the toggle spring goes over dead center, without reaction on the hand-throw
lever. The h.9.nd-throw lever does not move d11ring power operation of the switch,
'.llth.ough the main shaft does rotate. Figure 4-1 illustrates the disengagement
fe3.ture of the hand-throw lever. With the hand-throw lever in the latch st-'lnd,
the stud D in the lever hub is positioned in the rear tM.ck of the m9.in
shaft-h9.nd-throw shaft collar P. Figure 4-1 (a) shows the stud Din this position
and the hand-throw shaft in the position that corresponds with the switch
operating rod in its "out" position (near switch point open). During oper'ltion of
the hand-throw lever Figure 4-1 (a) and (b), lever stud D engages the colhr P,
rotating the main shaft-hand-throw shaft clockwise. At slightly beyond
mid-stroke, however, the toggle 'lction becomes effective in completing the switch
st rol{e.
Through the crank and bevel ge1r arrangement, the main shaft, hand-throw shaft is
thereby rotated the remainrier of the stoke by the spring force with no reaction on
the lever. It should be noted that while the lever stud D is still in the rear
track of the collar P, Figure 4-1 (b), the hand-throw lever can be returned to the
latch stand without further operating the hand-throw lever. ~owever, continuation
of the lever stroke (clockwise) from the position shown in (b) engages cam A on
the lever hub with the shifting stud C, forcing the hand-throw lever out into the
"out" position shown in Figure 4-1 ( c). Now stud D is Ln the ft'ont track: of the
shi.ft collar and in <J. position to rotate the m9.in shaft, hand-throw shaft, when
the lever is returned to the latch stand. The clockwisa stroke of the lev,=.lr Ls
li.mited by the eng11gement of the flat surface of the cam A with stud D, Figure 4-1
(c).
In returnLne the h>1nd-throw lever to the latch stand, the oper'ltion is r3Lmihr to
the clockwise stroke in th<J.t ·1gain at slightly beyond mid-stroke the toggle~
spring, through its ':lction on the main cr,:1.nk, completes the motion of the switch
points and the rotation of the main shaft. As the h"lnd-throw lever is returned to
the latch stand, cam Bon the lever hub engages with stud D, Figure 4-1 (d),
forcing the lever back into its original position on t~e shaft, with stud D,
Figure 4-1 (d), in the rear track of the shaft coll:'3.r. This allows the
interlocking lever to rotate counter-clockwise to close the latch st9.nd and allow
t~e machine to return to power operation.
4.4
•
HANDLEVER CUTOUT DEVICE
The handlever cutout switch, COS, is opened when the padlock is removed from the
handlever locking device and the device is pulled out to clear the bandlever.
This switch, COS, will break the electrical circuit thus preventing the motor
reversing con tac tor to energize. This switch also supplies indication through :..11
open circuit that the machine is in the manual mode of operation. 'rhe handlever
cutout switch can be locked in the open position by installing the p8.dlock behind
the post pedal locking device, thus disabling the machine electrically.
6231, p. 15
m
m
UNION SWITCH & SIGNAL
4.5
OVERLOAD CUTOUT RELAY
~ thermal overload ambient compensated relay senses continuous motor current.
If
the clutch slips for any reason before stroke completion, the overload relay is
designed to remove power from the motor and clutch via the reversing contactor,
approximately 2 minutes after the start of the switching cycle. The overload
relay heater can be sized to increase or decrease the approximate 2 min. trip
time. Once the overload relay has actuated, it will recycle in approximately 3
minutes.
The overload can be set for either automatic or manual operation. In automatie
operation, the overload relay will automatically reset itself: in manual
operation, the relay must be reset manually.
4.6
TRAILING OPERATION
Trailing a switch equipped with a YM-4 machine merely reverses the mechanism. In
doing so, the toggle spring is driven over dead center by the main crank.
oepending upon the control scheme used, power may or may not be admitted to the
electric motor. Regardless of whether power is admitted, the toggle spring force
at first opposes the initial shift of the switch points, the same as at an
ordinary spring switch, but unlike action at the latter, the force required to
throw the switch decreases as the switch points approach mid-stroke. ouring the
last half of the stroke, the toggle spring assists the shift to point closure.
CAUTION
The YM-4 switch machine is designed to operate in
2 seconds. Therefore, the trailing speeds should
not force the machine to throw in less than 2
seconds(5 MPH). Trailing speeds in excess of this
time will produce abnormally high forces within
the machine, thus decreasing the life of the machine.
To avoid personal injury or damage to the machine,
the hand throw lever must be in its latch with the
foot pedal closed during trailing operation.
6231, p. 16
UNION SWITCH & SIGNAL
SECTION V
FIELD MAINTENANCE
5.1
GENERAL
This section outlines recommended procedures for periodic inspection and
maintenance of the YM-4 switch machine.
WARNING
Remove all operating power at the nearest local breakpoint to avoid personal injury.
1.
connection to the switch points, including the holding force of switch rod,
should be checked for proper adjustment. Refer to paragraph 2.4.
2.
Check to insure all bolts are tight inside the switch machine, i.e., (8) bolts
holding plates for main crank, (2) bolts for toggle spring, (4) bolts for
hand-lever support, (4) bolts for gear box, (1) cotter pin for toggle spring.
3.
Periodically check the "electrical and control adjustments, paragraph 2.5, and
hand-lever cutout switch, paragraph 2.3, for proper operation in accordance
with instructions.
4.
No maintenance can be performed on the internal components of the motor.
Motor oiling is only required once every 5 to 10 years.
5.
Lubricating the switch machine at periodic intervals is essential. The
frequency of lubrication should be determined by experience and specific
applications and amount of operations. Minimum lubrication should occur not
less than once every 6 months, more frequent might be necessary in specific
applications. Refer to paragraph 2-6 and Figure 2-4.
6231, p. 17
ffi
m
UNION SWITCH & SIGNAL
SECTION VI
SHOP MAINTENANCE
6.1
GENERAL
Shop maintenance consists of restoring a damaged switch machine to an operable
state. This is accomplished by repairing and/or replacing damaged parts. Refer
to the parts list for ordering information and the lowest replaceable unit. The
exploded view in the parts list section will aid in disassembling and reassembling
the switch machine.
6.2
BEVELED GEAR WEAR PATTERN
Mar~ the teeth of the two beveled gears of the crank assembly with a suitable
marking compound. Throw the switch machine a few times. Check the contact
pattern as shown in Figure 6-1. Gears are cut with a contact pattern about half
the length of the tooth, the location slightly favoring the toe end of the tooth.
Under load the pattern will shift somewhat toward the heel of the tooth, and will
thus become more central. Under no circumstances must the pattern be concentrated
on the ends of the teeth. If an adjustment is needed, the crank assembly (Item
14, Figure A-1) can be adjusted by loosening the eight mounting bolts (17) and
repositioning the crank.
The bevel gears are mated together as shown in Figure 6-2. Notice that the prick
points in both gears are in alignment. Should maintenance be required that
separates the bevel gears, re-assemble the machine with prick points aligned for
proper gearmesh. In the event that the prick points have been worn off, see
paragraph 6.3 for an alternate method of aligning the bevel gears.
6.3 ALTERNATE BEVELED GEAR ALIGNMENT
Referring to Figure 6-3, mate the first gear tooth of the half moon segment gear
(as viewed from the operating bar end) with the seventh groove counterclockwise
from the keyway of the pinion gear.
6231, p. 18
UNION SWITCH & SIGNAL
Desirable Bearing Pattern
PROFILE ERROR
To correct: increase mounting distance
PROFILE ERROR
To correct: decrease mounting distance
ERROR-j
r-,,... _
-,f~--_/
l
~
CONVEX SIDE
LOW HEEL
CONTACT
-~-
.tt:: - l
"1:-,~'-= 1
J\~
ERROR~-~-~_/
~
CONCAVE SIDE
~...
LOW TOE
CONVEX SIDE
CONCAVE SIDE CONTACT
CONVEX SIDE
LOW HEEL
HIGH HEEL
HIGH TOE
CONTACT
CONTACT
CONTACT
·,..
.
LOW TOE
CONTACT
CONVEX SIDE
TOE CONTACT
CONVEX SIDE
HEEL CONTACT~
"'\f----,.
~
CONCAVE SIDE
~
CONCAVE SIDE
HEEL CONTACT
""\
~ -'$CONCAVE
SIDE
CONVEX SIDE
TOE CONTACT
.SHAFT ANGLE ERROR
To correct: decrease shaft angle
~
~..
CONVEX SIDE
TOE CONTACT
SHAFT ANGLE ERROR
To correct: increase shaft angle
Jt;;-:;\,
CONVEX SIDE
HEEL CONTACT
TOE CONTACT
,tr
~
TOE CONTACT
CONCAVE SIDE
HEEL CONTACT
~
CONVEX SIDE
CONVEX SIDE
TOE CONTACT
~
CONCAVE SIDE
+,:::l HIGH HEEL
~ CONCAVE
SIDE CONTACT
::==-;
CROSS CONTACT
To correct: move pinion up
CROSS CONTACT
To correct: move pinion down
HEEL CONTACT
~CONVEX SIDE
HIGH TOE
CONTACT
ERROR
CONCAVE SIDE
~ TOECONTACT
CONCAVE SIDE
TOE CONTACT
Figure o-1.
· ERROR
CONVEX SIDE
HEEL CONTACT
CONCAVE SIDE
HEEL CONTACT
CONCAVE SIDE
HEEL CONTACT
Beveled Gear Pattern
6231, p. 19
ffi
12JI. o. 20
?igure
•-2
Beoe1 Gear Al!gnmen,
UNION SWITCH & SIGNAL
m
Viewed from operating bar end of the machine,
mesh the first tooth of the half-moon gear into
the seventh groove of the pinion gear. This
groove is located by starting at the keyway and
counting seven positions in a counter clockwise
direction.
NOTE: Rotate gears to verify that the prick
points align.
OPERATING...._
ARM~
CRANK GEAR SEGMENT
Figure 6-3. Alternate Bevel Gear Alignment
6231, p. 20A
UNION SWITCH & SIGNAL
SECTION VII
RECOMMENDED TOOL LISJ
7.1
GENERAL
The following tabulation is~ list of tools required for servicing the YM-4 Switch
Machine. The part number provided is a Snap-On number but any equivalent tool may
be used (tools are not supplied by US&S).
Snap-On
Pa.rt No.
Description
Screw Driver
.037 x 1/4 Tip
.032 x 3/16 Tip
4" Blade
2-7/8" Bla1e
SSD4
SSD2
Combination Wrenches
1/2"
9/16"
11/16"
3/4"
OEB
OEX
OEX
OEX
Ratchet
3/8" Drive
F723
Ex:tension
3/8" Urive x 12"
FXll
1/2"
9/16"
11/16"
3/4"
FS161
FSl81
FS221
FS241
1/8"
AWL4
160
180
220
240
Sockets
Hex Key Wrench
"T" Handle Hex Key Wrench 1/8"
GA.Wl608
Adjustable Wrench 6"
DA.26
Adjustable Wrench 10"
DA.210
Retaining Ring Pliers w/Right Angle Tip
PR349A
Slip Joint Pliers
46
Ball Peen Hammer
BP20A
~
A.AR Wrench
'forque Wrench - 15 lt'oot Pound Mid-Range
3/8" Drive Hex Bit Hollier with a 4-Inch x 5/32 Hex: BLt
-·---
6231. p. 21
m
m
UNION SWITCH & SIGNAL
SECTION VIII
DIAGRAMS
The following diagr~ms are included in this section.
Figure 8-1.
Timing Diagram
Figure 8-2.
Typical Layout, RH or LH YM-4 Switch Ma.chine Applied to
Insulated 16'-6" Single Split Switch, #15 Turnout
Figure 8-3.
Typical Circuit Diagram for 115 VAC Machine, 115 VAC Control
YM-4 Switch Machine.
Figure 8-4.
Typical Circuit Diagram for 115 VAC Machine, 115 VAC Control
YM-4 Switch Machine.
Figure 8-5.
Typical Circuit Diagram for 115 VAC Machine, 115 VAC Control
YM-4 Switch Machine.
Figure 8-6.
Typical Circuit Diagram for 230 VAC Machine, 115 VAC Control
YM-4 Switch Machine.
Figure 8-7.
Typical Circuit Diagram for 230 VAC Machine, 115 VAC Control
YM-4 Switch Machine.
l<'igure 8-8.
Typical Circuit Diagram for 115 VDC Machine, 24-28 VDC
Control YM-4 Switch Machine.
l<'igure 8-<).
Typical Circuit Diagram for 115 VDC Machine, 12 VDC Controi
YM-4 Switch r.fachine.
UNION SWITCH & SIGNAL
o o o o o o o
o
m
o o o ·O o o o o
00000000
CONTACTOR
TO TERM.
#1
CRANK
POSITION
~
SL
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B
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HORIZONTAL LINES INDICATE THAT
PORTION OF THE CRANK MOVEMENT
DURING WHICH THE CIRCUIT IS
CLOSED THROUGH THE INDICATED
CONTACTS.
(DR\
,;
D
-
SR
\2V
S1
OR
(LC\
S2
CR ~
Figure 8-1.
'riming Diagram
6231, p. 23/24
UNION SWITCH & SIGNAL
DESCRIPTION
.....
DRAWING
451 .. 13
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TYP\CI\L LAYOUT \./ITH OPTIONJ\L U-5 C\RC\J\T
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&,. JUNCTION BOX (ITEM 7) TO BE LOCATED TO SUIT. FIELD CONDITIONS. :
Drawing 0451567 Sh. 81~ Rev. 0
· Figure 8-2.
Typic-al LayO:ut, RR or LR YM-4 Switch Machine Applied to
1ns1Jl.qtec;i
6" Sing!fl_ ~!>~~t Switch, tlS Turnout
11' .
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6231, p. 25/26
UNION SWITCH & SIGNAL
m
NOTES,
£. ~fHE~o~i:~i~o
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N4Sl 613-0101.
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Drawing 0451325 Sh. 1201, Rev. 4
•
Figure 8-3. , 'l.'ypical Circuit Diagram for 115 VAC Machine,
~15 VAC Control
I
6231, p. 27/28
..
UNION SWITCH a SIGNAL
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Drawing 0451325 Sh. 1801, Rev. 0
Figure 8-4A Typical Circuit Diagram for llSVJIC Machine,
llSVAC Control
i
·- I
TS
9
POWER/HANO THROW{~
INDICATION
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JUMPER SUPPLIED WITH WTOR
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CONTROL
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Dr~wing 0451325 Sh. 1601, Rev. l
Figure 8-5. ,. Typical Circuit Diagram for 115 VAC Machine,
US VA.C Control
!
6231, p. 31/32
UNION SWITCH & SIGNAL
{r,6
m
TS
POWER /HAND THROW
INDICATION
I6
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CAPACITOR
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Drawing 0451325 Sh. 1301, Rev. 1
Figure 8-6.
.~ypical Circuit Diagram for 230 VAC Machine,
l~S VAC Cont,:ol
1
6231, P• 33/34
I
UNION SWITCH & SIGNAL
TS
r:POWER /HAND THROW
INOICAHON
{
7
9
I9 I
I ~~1~4~----------~--------------------------------
NOTES•
~V~~V:rtA~0
114 I
IA
I
2. FIRST USED ON
N451613-0l07
I
R
CONTACTOR
46
4R
L
CL
L
CONTROL
CIRCUlTS
JUt.f'ER
IA
L
3
4L
4A
R
R
I
I
,~w{
2
CONTROL 8 {BX I I SC
INDICATION
POWER
..:.:N:.:..X1:...:.1.:.SC"-!--®tll-''-"'--+-'
2
MOTOR
CONT ACTOR
IL
CONT ACTOR
R
L
r-F.~------------I
4
I
I
BX230M
MOTOR
POWER
3
I
NX230M
I
I
I
{
JUMPER
I
,----<.>---="-i,..._-i-'-"-'-+--tl,__-4-..,.-- LEAD TS
STARTING
WINDING
MAIN
WINDING
CAPACITOR
REVERSING
SWITCH
L
3
®
R
THERMAL CUTOUT
I
... ,_J
--------------J
I
.. -
I
1®JL.-...0~---J
111 I
I
I
I
I
11
Drawing D451325 Sh. 1701, Rev. 0
"-~
/
HEATER
B
Fig~re 8-7,, Typical Circuit Diagram for 230 VAC Machine,
-:""-·.
....,,',
ll$ VAC control
6231, p. 35/36
UNION SWITCH & SIGNAL
m
TS
r:POWER/HAND THROW
INDICATION
{
I
I
9
9 1
NOTES:
®-i...-"lc:,4,___ _ _ _ _ _ _ _~ ~ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
114
A JUMPERS SUPPL! ED
m rnTH
I
I 7
ES-20 { · 7 I
CONTROL I ®-.,-1-"'-'----------------~
INDICATION
CONTROL
CONTACTOR
2. FIRST USED ON
:
N451613-0201
·~8"'----'-"-'---------------~
I
5
I
0-1-""-'--------------{ I0
6 I
I
I
I
I
R
48
L
CONTROL
CIRCUITS
L
4A
3
R
R
2
="'" {
CIRCUIT
CONTROL 8
INDICATION
POWER
MOTOR
POWER
r
N24C
{"""
NI I SM
121
I
I
I
I
I
I
ILF
131
r-,6'
I
I
I
I
JUMPER
JONES
!STRIP
TERM.
JUMPER
15
2LF
MOTOR
BLACK
L
2LR
2RR
-,-
R
I
I
I
(BK)
-,-
r-,
1¢
CONTACTOR
R
13
~=-·
...
JUMPER
ILR
IRR
-,-
16 1
I
I
c.-------------,
DC
CONT ACTOR
L
JUMPER
~
I
I
171
I
I
I
I
I
191
I
3LF
L
R
3LR
17
JUMPER
£
3RR
-,-
I
I
I
.3 I
I
._ __ J
-J
Drawing 0451325 Sh. 1401, Rev. 2
Figure 8-8.
I
Typical Circuit Diagram for 115 VDC Machine,
24-28 voe control
6231, p. 37/38
UNION SWITCH & SIGNAL
m
NOTES:
A ~v~E~3N¥~m~ ED
2. FIRST USED ON
N451613-0301.
ES-20 { : 7
CONTROL
I @-I-'-"-'------------------,
1®8+--'-=--'--------------.
·
INDICATION
CONTROL
{
II
5
@-I-'-~-----------:::-----,
6
R
CONT ACTOR
4R
4B
L
L
CONTROL
CIRCUITS
L
R
R
2
HOLOING {
CIRCUIT
!
4
..,__-=<'--1'----+--I--+----------------------'
61
1101---"""--l--+--+-1-------------------------'
8{Bl
CONTROL
INDICATJON
POWER
1
2C
11
>-"'-"--!--+----'
N1~2~C-~>-'--"-"'--lf----+---------------------------------------------,
c.----.--------,
r-1s'1
DC
ILF
CONT ACTOR
L
JUMPER
ILR
IRR
--,-
--,13
81 lSM
MOTOR
POWER
CONT ACTOR
R
JUMPER
I
NI I SM
16
I
I
{
1s
151
2LF
BLACK
I
I
I
I
JONES
-STRIP
TERM.
JUMPER
-.J
2LR
2RR
--,-
R
I
I
I
I
(BK)
--,-
~,
MOTOR
JUMPER
£
r.:,
I 17 I
I
I
19
R
3LF
3LR
17
JUMPER
!'!.
3RR
--,-
I
I
I
3 I
0
I
._ __ J
Drawing 0451325 Sh. 1501, Rev~ 0
Figure 8-9~; Typical Circuit Diagram for 115 voe Machine,
12 voe control
./';,
6231, p. 39/40
SERVICE MANUAL 6231
Appendix A
Parts Lis.t
ELECTRIC SWITCH MACHINE
YM·4
DUAL CONTROL, TRAILABLE
FOR SWITCH MACHINES MANUFACTURED AFT.ER JANUARY 1, 1984
THIS MANUAL Sl:JPERSEDES SM-6231 DATED OCTOBER, 1982
November, 1986 (Rev. 1/87)
ID1149A/DN0007A
UNION SWITCH &SIGNAL DIVISION
D-11 /87 -75-::>430-3
AMERICAN STANDARD INC/ PITTSBURGH. PA 15237
UNION SWITCH & SIGNAL
YM-4 SWITCH MACHINE ASSEMBLIES
Motor/control Power
115 V AC/115V AC control
115 v AC/115V AC control
230 v AC/115V AC control
115 v AC/115V AC control
115 v AC/115V AC control
115 v AC/115V AC control
230 v AC/115V AC control
115 v AC/115V AC Control
115 v AC/24-28V DC control
115 v AC/12V DC Control
230 v AC/115V AC Control
115 v AC/115V AC Control
115 v DC/24-28V DC control
115 v DC/12V DC control
115 v DC/12V DC control
Indication Lights
--
Green/Yellow (Glass)
--
Lunar White/Red (Plastic)
Green/Yellow (Plastic)
Green/Yellow (Glass)
Green/Yellow (Plastic)
Red/Yellow/Green (PLastic)
Green/Red/Yellow (Plastic)
--
Green/Red/Yellow (Glass)
Green/Red (Glass)
---
Green/Yellow (Glass)
Code
US&S Part No.
N451613-0101
N451613-0102
N451613-0103
N451613-0104
N451613-0105
N451613-0106
N451613-0107
N451613-0108
N451613-0109
N451613-0110
N451613-0111
N451613-0112
N451613-0201
N451613-0301
N451613-0302
A
B
c
D
F
G
I
J
K
L
M
N
E
H
0
YM-4 SWITCH MACHINE ASSEMBLY PARTS LIST
Part No.'s 451613-0101, -OXXX
(See Figure A-1)
Item
1
2
3
4
5
6
7
8
g
10
11
12
13
14
14
15
Description
case
cover
cover, with Position Indicating Lights
( See Figure A-6)
Cover Assembly
cover Assembly
cover Assembly
cover Assembly
cover Assembly
Plug, Pipe 3/14-14 NPT
120 Gear Box and Motor Assembly
(See Fig. A-3)
Gear Box and Motor Assembly (See Figure A-3)
Gear Box and Motor Assembly (See Figure A-2)
Bolt, 3/8-16 x 1-1/4 Hex. Hd
washer, LK. 3/8
Pin oowel
Spring, Toggle (See Figure A-4)
Pin, Spring Block
'Pin, Toggle Spring
Bolt, l/2-13xl-3/4 Hex. Hd
washer, LK. 1/2
Pin, cotter 1/4 x 2
shaft, output crank (See Figure A-5)
shaft, output crank
Plate, crank Shaft Mtg.
used on
Code
Part No.
R451614-0902
N451614-1402
N451614-4401
All
A,C,E,H,L
B,G,0
N451614-4402
N451614-4403
N451614-4405
N451614-7001
N451614-7002
J032906
N451614-6001
D
F,I
N
J,K
M
1\11
A,B,D,F,G,
J,K,L,N
C, I ,M
E,H,0
All
All
All
All
All
Ul
All
N451614-6002
N451614-6101
J050056
J475121-0113
J703412
N451614-0401
M451614-2303
M451614-2302
J050095
J047783
J048645
N451614-0501
N451614-0503
R451614-0103
I\ l l
All
I\ 11
except c
c
All
6231, p. A-1
ffi
m
UNION SWITCH & SIGNAL
Item
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
Description
Part No.
used on
Code
Shim
Bolt, 3/8-16xl" Hex. Hd.
washer, LK 9/16
Screw, 10-32 x 5/16 RD
Trough, Wire
Pin, Hinge
Brkt. Limit sw. Mtg.
Bolt, 1/4-20 x 5/8 Hex. Hd.
washer, LK 1/4
Nut, 1/4-20 Hex.
Bolt, l/4-20xl Hex. Hd.
Brkt., Limit switch
Brkt., Limit Switch
Switch Limit
Switch Limit
Insulators
Bellows
Plate, Bellows Mtg.
Bolt, 1/4-20 x 1-1/4 Hex. Hd.
Nut, 1/4-20 Hex.
Washer, 1/4 PL.
support, Lever Cam Shaft
Bolt, 3/8-16 x 1-1/2 Hex. Ha.
Lever, Hand Throw
washer, LK l"
stud, Lever
Lever, Interlocking
Bolt, 5/8-11 x 3-1/4 Hex. Galv.
Nut, 5/8-11 slotted Hex
Washer, 5/8 Pl. Brass
Washer, LK 5/8
Latch, Hand Throw
Nut
Pin, Cotter 1/8 x 1• Stl.
Bushing
Bolt, 1/2-13 x 1-1/4 Hex. Hd.
Brkt. cut-out sw. Mtg.
Brkt. cut-out sw. Mtg.
Screw, 4-40 x 1-1/2 Rdh. st.
Contact.or, Motor Rev.
M451614-0104
J050053
J475209
J052562
M451614-3205
N451614-3105
M451614-3204
J050013
J047775
J048203
J050019
M451614-3202
M451614-3203
J725666
J725707-0193
M451614-3208
J751327
M451614-3601
J050021
J048002
J047501
R451614-1802
J050057
R451614-3403
J047823
M192069
N451614-2108
M451614-2107
J048074
J475189
J047822
N451614-3001
M451614-3102
J048620
M451393-0701
J050090
M451614-3201
M451614-5801
J525093
J706448
All
All
contactor - 24 voe Coils
Cont.actor - 12 voe coils
--Screw, 10-32 x 5/8 ROH
Strip, Term. ~AR 12 pole
Strip, Term. AAR 4 pole
connector, Term. Strip
Brkt. Term. Strip Mtg.
Brkt. Term. Strip Mtg.
J709599
J7 09599-0001
J052566
J077653
Ml07471
M451614-3206
M451614-3207
M451614-3209
E,K
H,L,O
All
E,H
.All
All
.a.ll
All
A 1.1.
All
A 1.1
All
All
All except c
.a.11
All except c
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All except G
G
All
A,B,C,D,F,G,
I ,.J ,M, N
55
'j6
57
58
59
623l, p. A-2
All
All
All
All
c
All except C
UNION SWITCH & SIGNAL
Item
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
85
86
87
88
90
91
92
94
Description
Part No.
Screw, 10-32 x 7/8 Fil. Hd.
Nut, 10-32 Hex. Stl.
washer LK HO
Screw, 410-32 x 3/8 RDH
Nut, AAR
Nut, AAR Jam
washer, AAR
Nut, Insulating
Strip, Jones Term.
Protector, overload
Heater
Heater
Heater
Resistor, 2K ohms 25 watt
J052299
J048172
J047733
J052564
J480301
J480300
J047818
JO 48 300
J724351
J726153-0016
J713154-0004
J713154-0006
J713154-0005
,J0738 l 7
Resistor, 7.5K ohms 25W
Harness
Harness
Harness
Harness
Harness
Harness
Harness
Harness
Harness
washer, #8 Shakeproof LK
Lead
Clamp, Trough
Spring
Spring
Test Link
Nut, 9/16-18
Lead
screw, 6-32 x 1/4 Rd. Hd. Stl.
screw, 6-32 x 1 Rd. Hd.
J735519-0616
N451614-3801
N451614-5201
N451614-4901
N451614-5701
N451614-5501
N451614-5901
N451614-7101
N451614-7701
N451614-7901
J047892
N438713-001
N451614-4806
M451614-4803
M451614-4804
J071626
J480315
N438431-007
J525055
J5 25097
Term., Ins. Faston 250
Term., Amp (#6 Post)
Clamp
Screw, #3-48 x 3/4 Rd. Hd.
Ventilator
Cap, Plug
Power Supply
Power supply
Sockel, Octal
J7 31443
J730077
J709590
J525234
N070109
J703392
J725709-0070
J725709-0085
J792847
Spiral Pin
Cover, Gear Box
J487318
M451614-6601
used on
Code
All
All
;\ 11
All
All
All
All
All
All
All
A,B,D,F,G,J,L,~,N
I,C
E,H,K,O
A,B,D,E,F,G,H,J,
K,L,N,O
c' I I,..,
A,B,D,F,N
c
E
G
H,O
I
J,M
K
L
All
A,B,C,D,F,G,I,J,M,N
All
A,B,D,F,G,J,K,L,N
C, I ,M
All
All
A,B,C,D,F,G,I,J,M,N
All
A,B,C,D,F,G
I,J,K,L,M,N
All
All
All
All
All
All
A,B,D,F,G,J,K,L,N
C, I ,M
A,B,C,D,F,G,I,J,
K,L,M,N
i\11
All
6231, p. A-3
m
ffi
UNION SWITCH & SIGNAL
Item
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
llO
lll
ll3
ll4
ll5
ll6
ll7
118
ll9
120
121
122
123
124
125
126
127
128
129
131
132
133
Description
Part No.
Resistor, 800 ohms 30 watt
Nut, Jam 3/8-16
Nut, 1/4-20 Hex. Stl.
Heater Plate-Name
Lubricant, Stazon-M
Spacer
Pin, Cotter 3/16 x 1-1/2 Stl.
Ties, cable
Shim
screw, 1/4-20 x 7/8 Hex.
screw, 10-32 x 1/2 In. Rd
Plate, cont. Adapter
Plate, cont. Adapter
screw, 10-32 x 1/4 Rd.
washer, 6 Shprf. Lk.
switch, 6-amp 125V SP ST
J720074
J048010
J048631
M451607-7101
A041477
M451614-2106
J048634
J703360
M451614-0105
J050017
J052565
M451614-5103
M451614-5105
J052563
J047713
J724515
Lead
Label (Not Shown)
stud, Hasp
screw, 3/8 x 1-1/2 Hex. Hd.
Pin-Roll Elas. Stp. Nt.
washer
Hasp
washer, 10 Shprf. Lk
washer, 10 Flt. Stl. carol.
Clamp, cable
Bracket, standoff
Grommet, Rubber
Insulator, overload Protector
Tubing, Spiral wrap Black
strip, Term. AAR 8 Pole
Thermostat
washer, 10 Stl. Lk
screw, 10-32 x 3/16 Rd. Hd.
cable clamp
screw, 8-32 x 3/16 Rd.
Shim, Top and Bottom
shim, Side
M438876
M451523-2501
M387732
J050057
J487025
M391200
N072832
J047715
J475077
J709556
M451614-5603
J075487
J780059
A774186
M223608
J620940
J047733
J052561
J700651
J052601
M45ll 74-0601
M45ll74-0701
G23l, p. A-4
used on
code
C,G,H,I,O
All
!\11
C,G,H,I,O
All
All
11..11
All
~ll
All
11..ll
All except G
G
All
All
C,G,H,I,O
C,G,H,I,O
c
All
All
All
All
11..ll
All
A,B,C,D,F,G,I,J,M,N
All
11..ll
All
i\ ll
All
All except C
G
G
G
G
G
All
All
,.
tj,--ss
~118
121
122
124
132
133
/ ' (AS REQUIRED)
F.1.gure A-l.
------ .
YM-4 El ectr ·
----~~~~~~~~~--- Ma chine,
Exploded V.iew
--·
ic Switch
.
6231
- ,
P. A-C:./A-f..
UNION SWITCH & SIGNAL
GEAR BOX AND MOTOR ASSEMBLY PARTS LIST
P'irt No. N451614-6101
(See Figure A-2)
..
Item
Description
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
130
135
14-0
145
150
155
160
165
170
175
180
185
190
195
200
205
'.?10
Frame, Ge1:1.r Box
Shaft, Gear Box
Shaft, Gear Box
Shaft, Gear Box
Be':lring, Ball Single Row
Bearing, Ball Single Row
Be':lring, B<J.11 Single Row
CUP, BRG Single Row
Be':lring, Cone Single Row
Gear
Gear
Washer
Screw, 3/8 x 1-1/4 Hex HD
Ring, Retaining Snap Ext.
Ring, Retaining Sn':lp Ext.
Ring, Retaining Snap Ext.
Gefir
Bearing, Needle RLR Cage
Key
Key
Key
Gear
Ring, Retaining Bowed Ext.
Modul,~-Elec t. Clutch
Motor-Perm. M':lg. 115V
Ge'.3.r
Screw, 1/4 x 1/4 SAF Set
Washer, 3/8 Stl. LK Med.
Grommet
Spacer
Termin'.11 PR-INSUL DMDGRP
Card, Quik L'.lbel Code
Ca rd, Qui k L.9. be 1 Code
Bushing, Insul. 1/2"
Ge'.lr, Bevel
Key
Nut, 3/8-16 Hex. J'.lm
Screw, 3/8-16 x 1-1/4 Hex. Hd.
Washer, Lock
Nut, Lock
Shaft, H·1nd Throw
Be·1ring, B9.ll
Ring, l?c t,1 i 11 i.ng
W:rnh0 r
Ri.ng, Rcbiini.ng
2l 1J
1
: 2d
22'j
P'irt No.
N451614-6301
M451614-1701
N451614-1702
M:451614-1703
J066419
J066418
J066417
J066420
J066421
M451614-2501
M451614-2504
~451614-3510
J050056
J792852
J792853
J792854
M451614-2503
J066416
M451614-3504
M:451614-3505
M451614-3506
M451614-2502
J792849
J792843
J717250
M451614-2505
J050500
J47512l-0113
J751127
M451614-3511
J730053
J063646-0001
J063646-0002
J690429
M451614-2701
M451614-3508
J048010
,J046428
J047786
J048573
R451614-6402
J066368
J790544
1'445lnl4-'5505
J0'79388
~
·-
6231, p. A-7
m
m
UNION SWITCH & SIGNAL
GEAR BOX AND MOTOR ASSEMBLY PARTS LIST (Cont'd.)
Item
Description
230
235
240
245
250
255
260
Gear
Key
Bushing
Ring, RetainirJ.g
Block, Lever Be'lring
Spacer
:&ill Be'lring
P>lrt No.
M451614-2506
M451614-3507
M451593-0203
J792964
R451614-2203
M451614-3513
J066426
..
i):~51, p. A-8
UNION SWITCH & SIGNAL
m
19
SECTION 'II-II"
VIEW
'A
VIEW'B"
SECTION°D·D·
VIEW"C'
SECTIOM°F·F"
FOR Atii»e'""'aLY Of'
-.,M,.,_f"T W\'tM. Gl£ ..R11, 'S.£~ Vl&W •A•
TAl&S
55
SUPPLIEO
W1,-1< MOTOR
I
--~
FOR
A'S.'S,EMe~v OP'
$MA.F'T Wl'TM GEAR, S.!.~ Vl~'W •e,•
FOR
A'S.'S,EM81.Y OF 'S,M ... l"T
WITM Qi.EAR'-- ,_EE VIEW ..C"'
Drawing F451614 Sh. 61, Rev. 1
Figure A-2.
Gear Box and Motor Assembly
~
6232, p. A-9/A-l~i
UNION SWITCH & SIGNAL
GEAR BOX AND MOTOR ASSEMBLY PARTS r..rs·r
Part Nos. N451614-6001 & -6002
(See Figure A-3)
Item
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
BO
85
90
95
LOO
105
llO
ll5
120
125
130
135
140
145
150
155
150
165
170
175
180
185
190
195
200
205
210
215
220
225
210
235
Description
Part No.
Frame, Gear Box
Shaft, Gear aoic
Shaft, Gear Box
Shaft, Gear 130K
Bearing, Ball Single Row
Bearing, Ball Single Row
Bearing, Ball Single Row
Cup, Bearing Single Row
Bearing, cone Single Row
Gear
Gear
washer
Screw, 3/8 K 1-1/4 Hex Hd.
Ring, Retaining snap Ext.
Ring, Retaining snap Ext.
Ring, Retaining snap Ext.
Gear
Bearing, Needle RLR Cage
Key
Key
Key
Gear
Ring, Retaining Bowed Ext.
Module, Electro clutch
Motor, 1 HP ll5/230Vac
Gear
screw, 1/4 ic 1/4 SAF set
washer, 3/8 Stl. LK Med.
Grommet
Lead
Lead
Lead
Lead
Lead
r..ead
Spacer
Bushing, Insulating 1/2"
Gear, Pinion Bevel
Key
Nut, 3/8-15 UNC-28 Jam
screw, 3/8-16 x 1-1/4 Hex Hd.
washer, W-06 SKF Lock
Nut-N-06 SKF LK
Shaft, Hano ~brow
Bearing, Ball DBl w/seals
Rings, Waldes Retaining
washer
N451614-6301
N451514-1701
N451614-1702
N451514-1703
J066419
J066418
J066417
J066420
J066421
M451614-2501
M451614-2504
M451514-3510
J050056
J792852
J792853
J792854
M451614-2503
JO 66416
M451614-3504
M451614-3505
M451614-3506
M451614-2502
J792849
J792843
J717245-0001
M451614-2505
J050500
,J475121-0113
J751127
N438713-003
N438713-004
N438713-005
N438713-006
N438713-007
N438713-008
:4.451614-3511
J690429
M451614-2701
M451614-3508
J048010
J046428
J047786
J048573
-q451614-6402
,J066 368
J790344
M4516l4-3503
6231, p. A-11
~
m
m
UNION SWITCH & SIGNAL
Item
Description
Part No.
240
245
250
255
260
265
270
280
285
Ring, External Ring
Gear
Key
Bushing
Ring, Intern'll Ring
Block, Lever Bearing
Spacer
Tubing, Heat Shink 3/16 ID
Be'lring, B'lll Single Row
J079388
M451614-2506
M451614-3507
1\1451393-0203
J792964
R451514-2203
M451614-3512
A774169
J066428
(i?'H, p. A.-12
UNION SWITCH & SIGNAL
5
IS
VIEW
SECTION"o-o·
'A
VIEW'B'
$1'.CTIO>l "E·E.'"
m
s
20
VIEW"C"
SECTION "F • F"
CS£C.1tON. ~G - G"
'&C.AI.E: ~ IN.• 111\1..
f"OR A'oY.EMBI.'<' OF '1!.M.0.FT
WITM GE.AR.ft -~£E. V\€W ..A."
FOR
AY.Y.EM61.Y OF 'o><p,.FT
\JlTM 6,EA.J:t'b-4SE'E V1£'1w•8"'
FOR A1&'-EMISL'I" OF 'SHAF'l'
w'ITM GEAR'!, -'l>EE VIEW "C."
Drawing F451614 Sh. 60, Rev. 2
Figure A-3.
Gear Box and r.t>tor Assembly
6231, p. A-13/A-14
UNION SWITCH & SIGNAL
TOGGLE SPRING ASSEMBLY
Part No. N451614-0401
(See Figure A-4)
Item
Descri.ptlm
Part No.
1
2
3
4
5
6
7
Spring, Toggle
Retainer, Spring
Cap, Spring Retainer
Rod, Sprtng Retainer
Nut, Spring Retainer
Fitting, 3/16 Alan. Str.
Bushing, 2 O.D.xl-1/4 I.D. Ball
J680196
M451614-2801
M45l 614-2101
M451614-l 301
Ml91309
J039139
J066415
ENC>\111:.W
G)
I
,I
\.
\
/
----
. -----1 -T-
Figure A.-4.
Toggle Spring A.ssanbly
6231, p. A-15
m
m
UNION SWITCH & SIGNAL
OUTPUT CRANK SHAFT
(See Figure A-5)
Item
1
2
3
4
5
6
7
8
*
9
10
11
Description
Part No.
Fitting, 3/16 Alemite
Bolt, ~djustable Eye
Shaft, Crank
searing, Ball Bushing
Bolt, Hex., 3/8-16
Nut, Hex., 3/8-16
Bearing, Ball Bushing
Cam, Limit switch
cam, Limit switch
Screw, BTN. HD., 10-32x5/8
Washer, #10 Shprf. Lock
J039l39
N451614-3106
R451614-0502
J0664 l5
J050053
,J048010
J066414
J776705
J776706
J507373
J047715
* For output crank shaft assembly
Part No. N451614-0501 only
..
6231, p. A-16
.
UNION SWITCH & SIGNAL
m
"A"
1I
,, PRE.SS~t>
IN
VIEW '')(''
•.
.J
''A''
Dwg. No. D451614
sh.
5, Rev. 3
Figure A-5.
output Crank Shaft
62 31, P• A-17/A-18
UNION SWITCH & SIGNAL
COVER ASSEMBLY WITH TWO COLOR POSITION LIG"fl'rS
(See Figure A-6)
Item
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
85
90
95
Description
Part No.
cover
Gasket
Hood
Ring, Lens
Module, Lamp
Lens, Green, 4-1/2 in. *Glass
Lens, Yellow, 4-1/2 in. *Glass
Screw, Thumb, 10-32 x 3/8
Screw, Rd. Hd., 10-32 x 5/8
screw, Rd. Hd., 1/4-20 x 1/2
washer, steel Pl., #10
washer, Steel Pl., 1/4 in.
washet, Spring steel LK, #10
washer, Spring Steel LK, 1/4 in.
Plate, Mounting
socket, Lamp
Clamp, Cable
Harness
R451614-4101
A.690969
N451614-4202
M451614-4203
M451614-4302
J053142
J053151
J507384
J525281-0ll0
J525269-0l08
J475132-0110
J475132-0112
J475 l 31-0109
J475131-0lll
M451614-460 l
J725895
J709556
N451614-4701
*Lens listed are for cover assembly, N451614-4401.
If lens other than thes~ are required, please specify color,
material, and lens location when ordering. see tabulation below.
LENS
Color
Material
Part No.
Green
Yellow
Red
Green
Yellow
Red
Lunar White
Glass
Glass
Glass
Plastic
Plastic
Plastic
Plastic
J053142
JO 53151
J053141
J531506
J531507
J531505
J531504
6231, p. A-19/A-20
ffi
UNION SWITCH & SIGNAL
l,\.Olt'tl\.""-L
'ilEV o~OR
T£R.HllNAL
POST
i
5
't
Gl
!El
[?]
[fil
l:fil
•
TAGS
TAGS
PLUG
r--,
(
I
r,g1
COMMf'lN
SHt1w11JG
Po~
I
S\JFFl'A N.O.
'REVE'I\SE
asJ
LE.>IS laol
C.OLOV...
1..Ew.s
-4-4-0\
.)053\4-2.
G.i.£.t.l-\
.)053\51
COM
-4402..
.)53\504-
~':'.':'.!'-:-,
l53\S05
MALE
END
·4403
.l531SO<o ~Ii.EE~
J5~l50fo Gl((HI
-4404
.)531507
J5"S>,505
COLOR
'<ELLO'W
Lt.NS l#\"'-\"E...\"-~
G.LJl,,.SS
'RS.:!)
"'L"51:\C.(O?"i\C."4
'<E\..\..0¥1 ~,._S,\C.(O?"i1c."L)
R.1:.0
PLA$Tl<.(OPTICAl
r£'-/tMl/iLS OF" PLUGS.
v 1 1RrAJG Pt1R.P,.s C.S
(
I
I___ J
[JETAIL' B"
SC.ALE: 1/1
V...~VE.R.SE
'REVERSE
30
f="=--V1Ev/ IN j)1i,.£_ -, )"< OF ARROW
,:,r ...... , ... 11~,..,N .r II/AME PLAT:E
NC'l$it.'tl\.t,..\_
~O'R.'°'"'-L
HAN"" THPt"'W SID!.
$d<i1-E:: I
/z.
CIN'CUJT 0/1 ,:_;:·1\IA
FOR Cov::..F
w,.,,
L,5;-,-;:
.J
15
(FRONT& BACK)
Se E oe TAI\.·· a··
(BOTH ENDS)
$EE.. OF..TA\'-''8''
Drawing F45lnl4 Sh. 44, Rev. 8
30
35
Col1~ \ssemhly Witj Tw~
F'osi tion tiehts
6231, p. A-21/A-22
UNION SWITCH & SIGNAL
COVER ASSEMBLY WITH THREE POSITION LIGHTS
(See Figure A-7)
Item
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
Description
P>3.rt No.
Cover Assembly (Complete)
Cover Assembly (Complete)
Cover, Case
Hood, Complete
Lens Ring
Lamp Module
Lens, 4-1/2 in. Pl~stic Green (-7001)
Lens, 4-1/2 in. Glass Green (-7002)
Lens, 4-1/2 in. Plastic Yellow (-7001)
Lens, 4-1/2 in. Glass Yellow (-7002)
Screw, 10-32 x 3/8 Thumb
Screw, 10-32 x 5/8 Rd. Hd.
Screw, 1/4-20 x 1/2 Rd. Hd.
Washer, #10 Steel Pl.
Washer, 1/4 in. Steel Pl.
W~sher, #10 Spring Steel LK
Washer, 1/4 in. Spring Steel LK
Mounting Plate
Lamp Socket
C1:1.ble Clamp
Harness
Lens, 4-1/2 Plastic Red (-7001)
Lens, 4-1/2 Glass Red (-7002)
G':lsket, l/2x5/8
Contact Adhesive
N451614-7001
H451614-7002
R451614-6901
1{451614-4-202
M45l614-4203
M4516l4-4302
J531506
J053142
J531507
J053151
J507334
,}525281-0110
J525269-0108
,}475132-0110
J475132-0112
J475131-0109
J475131-0111
M451614-4601
J725895
J709556
N451614-6701
J531505
J053141
A690969
A041988
~
-
6231, p. A-23/A-24
m
UNION SWITCH & SIGNAL
m
TERH\INAL
i TAt
POST
s
G]
[y)
1i3!
1i2J
~
®
8
li'.i)
'"'A.l.i:.
£NO
S/101.111,JG TE1Ct11tN11tS OF' PLUGS
J:01<
r.,.)/RIUG Ptll(POSl!!S
[>ETAIL .. B"
MOll1'1t.\..
'l'Oll1'\"'\..
HAM!: TMP."W SIO:.
CIRCUIT DIAGRAM
VIEW IN DJRE:CTION OF AP.ROW
APPLICATION 0/." NAME PLATE
FOR COVER \NITH LlGt-4TS
~
'~11
9+~\i
.
-#])
-
,,,,
,.·--.:;:
!I
--+
_SEC.i\01'1 'A·A··
'::;(.A.LE:
'----1H"-
1/1
SHOP H~AD
Drawing F451614 Sh. 70, Rev. 0
30
[·
I
Figure J\.-7.
Cover Assembly with Three
Position Lights
6231, P• A-25/A-26
SERVICE MANUAL 6231
Appendix B
Parts l,..ist
ELECTRIC SWITCH MACHINE.
YM-4
.
DUAL CONTROL, TRAILABLE
FOR SWITCH MACHINES MANUFACTURED BEFORE JANUARY 1, 1984
November, 1986 (Rev. 1/87)
ID1149A/DN0007A
UNION SWITCH & SIGNAL DIVISION
D·l 1/87-75-2430-3
AMERICAN STANDARD INC I PITTSBURGH, PA 15237
ffi
UNION SWITCH & SIGNAL
YM-4
V
V
V
V
V
MAOilNE ASSEMBLIES
indication Liqhts
Motor
115
115
230
115
115
swrrat
--
AC/115V AC Control
AC/ll5V AC Caltrol
Green/Yellow (Glass)
AC/115V AC Control
AC/ ll5V AC Control
Ulnar White/Red (Plastic)
DC/24-28V DC Control
---
US& s Par t lb •
Code
N451613-0101
N451613-0102
N451613-0103
N451613-0104
N451613-0201
A
B
c
D
E
YM-4 SW lTCH MACHINE ASSEMBLY PAR'IS L1S'l'
Part lb. 's 451613-0101, -OlXX,
(See Figure B-1)
item
l
2
3
4
5
6
7
8
~
10
11
12
13
14
14
15
16
17
18
19
20
21
22
;u
24
25
2&
27
28
Description
Case
Cover, w/out Position indicating Lights
Cover
Cover, with Position indicating Lights
(See Figure B-6)
Cover Assembly
Plug, Pipe 3/14-14 NPr
Gear Box w/Motor Assembly (See Fig. B-3)
Gear Box w/Motor
Gear Box w/Motor
Bolt, 3/8-16 x 1-1/4 Hex. Rd
wash er , LK. 3/ 8
Pin Dowel
Spring, •roggle (f>ee Figure B-4)
Pin, Spr ing Block
Pin, •roggle Spring
Bolt, l/2-13xl-3/4 Hex. Rd
wash er , LK. 1/2
Pin, Cotter 1/4 x 2
Shaft, output Crank (See Figure B-5)
$haft, output Crank
Plate, Crank Shaft Mtg.
Shim
Bolt , 3/ 8-16 xl " Hex. Rd •
Sha ft, Hand 'l'hr ow (See Figure B- 2)
Bolt, l-13x6 Hex. Rd.
•rrough, Wire
Pin, Hinge
13rk t. Limit Sw. Mtg.
Bolt, 1/4-20 x 5/8 Hex. Rd.
Washer , LK 1/ 4
Nut, 1/4-20 Hex.
llol t, 1/ 4- 20xl Hex. Hd.
Brkt., Limit switch
Brkt., Limit Switch
6231, p. B-2
Used Ol
Code
Pact lb.
R451614-0901
N451614-1401
N451614-1402
N451614-4401
N451614-4402
J032906
N451614-0301
N451614-0302
N451614-5001
J050056
J04 7779
J703412
N451614-040l
M451614-2303
1'1451614-2302
J050095
J047783
J048645
N451614-0501
N451614-0503
R451614-0103
M451614-0104
J050053
N451614-0601
J050251
M451614-3205
N451614-3105
M451614-3204
J050013
J047775
J048203
J050019
M451614-3202
M451614-3203
All
A,E
c
B
D
All
A, ll, D
c
~
r:
All
All
All
All
All.
All
All
All
All
A,li,D,E
c
All
All
All
All
All
All
All
All
All
All.
All
All
All
All
UNION SWITCH & SIGNAL
Item
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
Description
Switch Limit
Switch Limit
Insulators
Bellows
Plate, Bellows Mtg.
Bolt, 1/4-20 x 1-1/4 Hex. Hd.
Nut, 1/4-20 Hex.
Washer, 1/4 PL.
support, Lever cam Shaft
Bolt, 3/8-16 x 1-1/4 Hex. Hd.
Lever , Hand Thr CM
Washer, LK l"
Stud, Lever
Lever, interlocking
Bolt, 5/8-11 x 3-1/4 Hex. Galv.
Nut, 5/8-11 Slotted Hex
Washer , 5/8 Pl. Br ass
Washer, LK 5/8
Latch, Hand Thr CM
Nut
Pin, Cotter 1/8 x l" Stl.
Groowet
Bolt, 1/2-13 x 1-1/4 Hex. lk:I.
Brkt. Cut-out Sw. Mtg.
Screw, 4-40 x 1-1/2 Rdh. St.
Con tactor, Motor Rev.
Con tac tor - Rev. 7. 5 Hb
Screw, 10-32 x 5/8 ROH
Strip, Term. AAR 12 pole
Strip, Term. MR 4 p:>le
Connector, Term. Strip
Brk t. Term. Strip Mtg.
Screw, 10-32 x 3/4 Fil. Hd.
Nut, 10-32 Hex. Stl.
Washer LK 110
Screw, 110-32 x 3/8 ROH
Nut, AAR
Nut, MR Jam
washer, AAR
Nut, lnsu!.ating
Strip, Jones Term.
Protector , o., er load
Heater
Heater
Heater
Res is tor , 2K ohms 2 dA
Resistor, 7.SK ohms 2 dA
Part it>.
J725666
J725707-0l93
M451614-3208
J751327
M451614-3601
J050021
J048002
J047501
R451614-1802
J050056
R451614-3403
J047823
M.192069
R451614-2108
M.451614-2107
J048074
J475189
J047822
N451614-3001
M451614-3102
J048620
J751324
J050090
M451614-3201
J525093
J706448
J709599
J052566
J077653
Ml07471
M451614-3206
M451614-3207
J052299
J048172
J047733
J052564
J480301
J480300
J047818
J048300
J724351
J726153-0016
J713807
J713154-0006
J713154-0005
J073817
Used On
Code
A,B,D,E
All
A,B,D,E
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
A,B,C,D
E
All
All
All
All
All
All
All
All
All
All
All
All
All
All
All
A,B,D
c
E
A,B,D,E
c
6231, p. B-3
m
m
UNION SWITCH & SIGNAL
Item
72
73
74
75
76
77
79
80
81
82
83
84
85
86
87
88
90
91
94
95
96
97
98
100
101
103
104
105
106
107
108
109
110
112
113
114
115
116
117
118
119
120
121
122
Description
Harness
Harness
Harness
Washer, lt8 Shakeproof LK
Lead
Lead
Clamp, Trough
Spring
Spring
Test Link
Lead
Lead
Screw, 6-32 X 1/8 Rd. Hd.
Screw, 6-32 x 1 Rd. Hd.
Term., Ins. Faston 250
Term. Amp. (#6 Post)
Plate, cover
Clamp
Screw, lt3-48 x 3/4" Rd. Hd.
Ventilator
cap., Plug
Power supply
Power supply
Socket, Octal
cover, Gear Box
Resistor, 800 ohms, 30 watt
Nut, Jam 3/8-16
Latch, Assembly with Hasp
Bolt, 1/4-20 x 3/4 Hex. Hd.
Spacer
Pin, cotter 5/32 x 1-1/2 Stl.
Lubricant stazon-M
Ties, cable
Plate-Name
Lead
Screw, 10-32 X 1/2 In. Rd.
Screw, 10-32 X 9/16 Rdh. st.
washer, 10 Stl. Lk. Med.
Resistor, 800 Ohms 30 watt
Switch, 6-amp 125V SP ST
Bracket, HTR Mounting
Screw, 10-32 x 7/8 Rd. Hd.
Stud, Hasp
Screw, 3/8 x 1-1/2 Hex. Hd.
Pin-Roll Elas. Stp. Nt.
washer
Hasp
washer, 10 ShprE. Lk
Washer, 10 Flt. Stl. Coml.
Clamp, Cable
Shim, Top and Bottom
Shim, Side
62 31, p. B-4
Part No.
N451614-3801
N451614-5201
N451614-4901
J047892
N438713-001
N451614-5101
N451614-4802
M451614-4803
M451614-4804
J071626
N4 38 713-007
M451614-5102
J525241
J525097
J731443
J730077
M451614-1302
J709590
J525234
N070109
J703392
J725709-0070
J725709-0085
J792847
M451614-1303
J720074
J048010
J792898
J050016
M451614-2106
J048627
A041477
J703360
N451607-7101
M4 38876
J052565
J525046
J047733
J720074
J724515
M451563-5101
J052568
M387732
J050057
J487025
M391200
N072832
J047715
J475077
J709556
M45117 4-0601
M451174-0701
U$ed On code
A,13,D
c
E
All
A,B,C,D
E
All
A,B,D
c
All
A,B,C,D
E
All
All
1\1 l
All
1\11
All
All
All
All
A,B,D
c
A,B,C,D
All
c
All
All
1\ll
All
?\ll
All
1\11
All
c
c
c
c
c
c
c
E
All
All
1\ll
All
l\.ll
11.11
A,B,C,D
All
1\ ll
All
-
UNION SWITCH & SIGNAL
m
,_.. l-"
2
121
122
(AS REQUIRED)
Figure B-1.
YM-4 Electric switch Machine, Exploded View
6231, p. B-5
ffi
UNION SWITCH & SIGNAL
HAND THROW SHAFT PARTS LlST
Part No. N451614-0601
(See Figure B-2)
item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Description
Gear, Bevel
Key
Nut, 3/8-16 Hex. Jam
Ser f:M, 3/3-16 x 1-1/4 Hex. Rd.
Washer , IDck
Nut, IDck
Shaft
Bearing, Ball
Ring, RWG
washer
Ring, R'ffiG
Gear
Key
Brg., Ball Bushing
Ring, R'ffiG
Bracket, Mtg.
Housing, Upper BRG.
Part No.
M4516l4-2701
M451614-3508
J048010
J050056
J407786
J048573 ~ , < /
1<'..fit'.4 51614
J066368
J079344
M451614-3503
J079388
M451614-2506
M4516 l4-3507
J066426
J792964
R451614-2203
M451614-0802
(The following items are for reference only)
22
23
24
25
6231, p. B-6
Screw, 3/8-16 x 1-1/4 Hex. Rd.
Washer, 3/ 8 Stl. Lk. Med.
Case, YM-4 Switch Machine
Support, Lever Shaft
J050056
J047779
R451614-0901
k451614-1802
'
f
4
$£.CTION "A·/'\
17
7
8
c
PRE.SSE.t:> INTO
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UNION SWITCH & SIGNAL
GEAR BOX AND MOTOR ASSEMBLY PARTS LIST
(See Figure B-3)
I
Item
Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Frame, Gear Box
Shaft
Shaft
Shaft
Bearing, Ball
Bearing, Ball
Bearing, Ball
Cup, Bearing Ball
Bearing,
Gear
Gear
washer
screw, 3/8-16 x 1-1/4 Hex Hd.
Ring, Retaining
Ring, Retaining
Ring, Retaining
Gear
Bearing, Needle RLR Cage
Key
Key
Key
Gear
Ring, Retaining
Module, Electro Clutch
Motor, 1 HP 115/230 vac
Motor, Perm. Magnet 115 Vdc
Gear, Pinion
Screw, 1/4-20 x 1/4 SAF. Set
washer, 3/8 Lock
Grommet
26
27
28
29
6231, p. B-8
Part No.
R4516H-0201
M451614-1701
M451614-l 702
M451614-1703
J066419
J066418
J066417
J066420
J066421
M451614-2501
M451614-2504
M451614-3510
J050056
J792852
J792853
J792854
M451614-2503
J066416
M451614-3504
M451614-3505
M451614-3506
M451614-2502
J792849
J792843
J717245-0001
J717250
M451614-2505
J050500
J047779
J7 51127
(Rev. 1/87)
-
UNION SWITCH & SIGNAL
m
11
12 1
10
14
17
1
22
16
.3
22
17
2
5
7'
6
./.J
SECTION ·o-o·
8
4
3
SECilON
VIEW~
VIEW
"E·E."
SECTION °ie • F"
v1Ew·c·
·s·
13,28
1
24
I
-
4
6
......-
-
..
I
!::=::;-- -
-
--
U.
25
~
I
"
i,
'
-
-
~'°'"
VIEW SHOWING. MOUNTIN~
OF Pll'IION
ON C:\.U"TC.11
NIODU\.S.
II
II
.....--~
-1--~
AC MOTOR
LJ
- ,.....__
.
'
-
,-.
,-.
I
· 115 VAC AND 230V AC MOTOR
13, 28
25
1
-
I
,__
--
-
--
24~
-
It---
1--
~
-
f:!
-
I
DC MOTOR
II
~
Dwg. No. F451614, Sh. 3, Rev.3 (AC Motor,
Dwg. No. F451614, Sh. !iO, Rev. 0 (DC Motor)
--~
I
-
II
.....---
I
LJ
'---
;
-
!
115V DC MOTOR
FOR MOTOR PART NUMBER SUFFIX -0103 ONLY•
Figufe B-3.
.L..
· 1
Gear Box and Motor Assembly
6231, p. B-9/8-10
.
.
.
UNION SWITCH & SIGNAL
'l'OGGLE SPRING ASSFMBLY
Part to. N451614-040l
(See Figure B-4)
l te,11
Des er i pt ion
Part to.
l
2
3
Spring, '!bggle
Retainer, b'pr ing
Cap, Spr ing Re ta iner
Rod, Spring Retainer
Nut, Spring Retainer
Fitting, 3/16 Alem. Str.
Hushing, 2 O.D.xl-1/4 1. D. Ball
J680196
M451614-2801
M451614-2101
M451614-1301
Ml91309
J039139
J066415
4
5
6
7
,___
©
(o
Figure B-4.
1bggle Spring Assembly
6231\, p. B-11
m
m
UNION SWITCH & SIGNAL
OUTPUT CRANK SHAFT
(See Figure B-5)
Item
1
2
3
4
5
6
7
8
* 9
10
11
Description
Part No.
Fitting, 3/16 Alemite
Bolt, Adjustable Eye
shaft, crank
Bearing, Ball Bushing
Bolt, Hex., 3/8-16
Nut, Hex., 3/8-16
Bearing, Ball Bushing
cam, Limit switch
cam, Limit switch
screw, BTN. HD., 10-32x5/8
washer, #10, Shprf. tock
J039139
N451614-3106
R451614-0502
J066415
J050053
J048010
J066414
J776705
J776706
J507373
J047715
* For output cam shaft assembly
Part No. N451614-0501 Only
5 2 3 1 , p • B-12
UNION SWITCH & SIGNAL
ffi
VIEW•)(~
PRESSED
IN
,.. PRE.SSl::t>
IN
I
l
\
Dwg. No. 0451614 Sh. 5, Rev. 3
Figure B-5.
ou t put crank Shaft
6231, p. B-13/B-14
UNION SWITCH & SIGNAL
COVER ASSEMBLY WITH GREEN/YELLOW-GLASS COLOR POSITION LIGHTS
(See Figure B-6)
Item
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
85
90
95
Description
Patt No.
covet
Gasket
Hood
Ring, Lens
Module, Lamp
Lens, Green, 4-1/2 in. *Glass
Lens, Yellow, 4-1/2 in. *Glass
Screw, Thumb, 10-32 x 3/8
Screw, Rd. Hd., 10-32 x 5/8
Screw, Rd. Hd., 1/4-20 x 1/2
washer, steel,Pl., #10
washer, steel Pl., 1/4 in.
washer, Spring steel LK, #10
washer, Spring steel LK, 1/4 in.
Plate, Mounting
socket, Lamp
Clamp, cable
Harness
R451614-4101
A690969
N451614-4202
M451614-4203
M451614-4302
J053142
J053151
J507384
J525231-0ll0
J525269-0l08
J475132-0110
J475132-0l 12
J475131-0109
J475131-0lll
M451614-4601
J725895
J709556
N451614-4701
*Lens listed are for cover assembly, N451614-4401.
If lens othet than these are required, please specify colot,
material, and lens location when ordering. see tabulation below.
LENS
Color
Material
Part No.
Green
Yellow
Red
Green
Yellow
Red
Lunar White
Glass
Glass
Glass
Plastic
Plastic
Plastic
Plastic
J053142
J053151
J053141
J531506
J531507
J531505
J531504
6231, p. B-15/8-16
UNION SWITCH a SIGNAL
TLIII.HIIHAL.
P'OST
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0
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.
T"'GS
PLUG
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FEMALE
CHO
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".-..........
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·-4-41-011.
-440.3
-"404
.3531504.)~ISO(o
\l.~EU~
C.0\..0'11. \.£"51351 C.OU)\l.
.U.'i.'M .)055151
'tltUJ:l"w
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<a!LE'l'l
.15~1S06' GRtE,.
.35!11505
.)5!5150"1
Jll'!USOS
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PLASTI<.(OPTIUIII.
SHow1NG
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PllltPOS~S.
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SC.ALE: 1/1
Vl/!.W IN OIR£CTION OF ARP.OW
Al'l'LICATION Ot: NAME PLATE
llO._....._,._
llOII.......L
HA"I'" TMRnw SIOaa
CIRCUIT DIAGRAM
FOR COVER \NITJ1 LIGHTS
...
12.
41:
2 ...
,.,,.
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j
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:L"
16
""----
.J~----------,2 "''--------~
s
(FRONT. 8ACIC)
SEE. D!TAlt.''8..
(i!>OTH E"l)S)
';,EE OET._,\\..'~S"
ALL 01MEN$10N'<>
Ml'.Rll£0
* ARE
FOR
REF. ONLY.
Drawing F451614 Sh. 44, Rev. 8
i-------------1s:l.•----------------.1
Fi ure B-6.
Cover Assembly With Green/~ellow
Color Position Lighhts