Download Domestic

#MC
FMC Corporation
Motor Coach Division
333 Bfokaw Road Box 664 Sanla Clafa Calitornia95052
, L:
DATE
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18 November 19 74
2939 40002
N-UMBER
GROUP
ATTENTION: SERVICEMANAGER AND OWNERS
39
DESCRIPTION This Service Bulletin
modifies
the domesti
battery
charging input and ground circuitry
by replace_
ment of the con/erter
fuse with a brass conducling- link
(s1ug) and installation
of a 40 ampere circuit
bieaker
(thermal-reset
type) in the battery ground 1ine.
This
modification
minimizes the affects
oi trigt current
spikes emmi-ting from the converter
during ApU starting
/ ' rr
0
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rt)
$
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v
$
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MANPOWEREstimated
i3-6ETour.
accomplishment
time
for
one mechani
0 0 0 0 1t o 0 0 6 4 5
2900R
MOTOR HOME
AND
MT.N
CLUB COACHES
(Factory Use Only)
Information
addedto:
O W N E RM A N U A L( S }
K r T C O N T E N T S( 5 1 0 6 8 5 7 - R 0 0 1 )
8.
9.
10.
11.
12.
M O D E L( S }
AFFECTED
2900c
@RRANTY REIMBURSEMENTFMC Motor Coach
- Division
will
ffi
labor hour anJ retmoursement for
Kit 5105857-R001 on a properly submitted Warranty Claim
(Form RVD 69) for this modification.
Authorization
for
dealers to proceed must be obtained from the Motor
Coach Division
Service Department prior
to performing
the work.
1.
2.
3.
4.
5.
6.
7.
MODIFICATION OF
DOMESTIC BATTERY
CHARGING AND
GROUI\]DC:iRCUITF.T
i h^
qq!.lPI4ANCE Dealers should comply with
this butletin
presenc ovrners
to--delivery
of coach to owner.
FEr
should return coach to dealer for this modification
as
soon as practicable.
ITEM NO.
SUBJECT
D /NI
NTV
SERVICE
M A N U A L( S }
COACH
.-_T-
Link, conducting
5105857
Circuit
b r e a k e r ( 4 0 a m p) M - 1 5 25 g
Nut (cB stud)
M-I1I72
Lock$rasher (CB stud)
M-17171
Scre$, (CB attach)
M-I425I
Nut (CB attach screw)
tq-I7O5Z
Lockwasher (CB attach
t'4-!7 047
nut )
Screw (cnd cable attach) M- 18051
Nut (Gnd attach screw) M-17040 (or
Lockwasher (Gnd nut)
M-I7I1.4
Cable assy (batt-to-CB)5106858-01
Cable assy (CB-to-gnd) 5106858-02
1
2
PARTSMANUAL(S}
')
WARRANTY
M A N U A L( S }
2
2
OTHER
M-17070)
RVO€4 {6.t3}
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DATE
GROUP
ATTENTION: SERVICEMANAGERAND oWNERS
39
ACCOMPLISHMENT INSTRUCTIONS
t.
Remove AC power from coach (APU inoperative
an
service line disconnected).
Turn off all DC
operated domestic components and position
the
refrigerator
thermostat
knob to the "OFF"
position.
2.
Replace converter
50 ampere fuse with
(item 1) as follows:
ing link
conduct-
a. Gain access to converter
bus fuse clips
bv
opening the hinged access door on the front
of the converter.
(largest
b.
Locate and renove
in converter).
-c .
(Item I) in fuseInsert conducting link
holder clips then solder in place at both
upper and lower clip.
d.
close
converter
Modify the forward
Iead as fol-lows:
a.
b.
50 amp fuse
Remove access cover
compartment .
battery
(Factory Use Only)
Information
addedto:
ground
O W N E RM A N U A L( S )
from domestic
battery
SERVICEMANUAL(S}
Loosen cable clamp nut and using a screw
d.isconnect .ii=ting
type cabLe pullerl
ground lead from forward battery
negative
and cut off at opposite end at the
terminal
ground screw on the inboard wall of the
battery
compartment; discard l-ead.
NOTE
Do not remove the smaller white lead
(refrigator
ground) from the ground
ground screw,/nut with
screwi retighten
white lead remaining connected.
c.
M O D E L( S )
AFFECTED
fuse
access door.
domestic
SUBJECT
See Fiqure 1.
Install
ci"rcuit breaker as
shown ri'ith the copper terminal
stud outboard, on forward waII of compartment by
attaching
vent slot with
through existing
( item 7 )
t!./o screws ( item 5 /, two lockwashers
and two nuts (item 6).
RVD€a (8.73)
Page+-of
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PARTSMANUAL(S)
WARRANTYMANUAL(S)
OTHER
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NUMBER 2 9 3 9 4 0 0 0 2
D A T E1 8 N o v e m b e r 1 9 7 4
A T T E N T I O N :S E R V I C EM A N A G E RA N D O W N E R S
GROUP
39
SUBJECT
::l
M O O E L( S )
AFFECTED
(Factory Use Only)
Information
addedto:
O W N E RM A N U A L ( S }
S E R V I C EM A N U A L ( S I
(SI
PARTSI\4ANUAL
W A R R A N T YM A N U A L{ S )
OTHER
FIGURE
M O D I F I C A T I O N O F D O M E S T I C B A T ' I E R Y G R O U N DLEAD
RVD-84 15-73)
Page
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5
#MC
DATE
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18November
N U M B E R2 9 3 9 4 0 0 0 2
GROUP
ATTENTION: SERVICEMANAGER AND OWNERS
DriJ-L I/4 inch diameter hole in forward waIJ]
compartment about 4 inches to thq
of battery
SUBJECT
lower than circuit
inboard and slightly
around
holQ
Grind or sand off area
breaker.
to insure good ground connection for next
step.
A+t-r..h
+ha
1/A
inr.h
Tlt
rino
end
of
cable
in
assembly (item 12) to mount hole drilled
(item
8) ' l-ockprevious
stepf with screw
washer (item I0) and nut (item 9).
f.
Attach opposite end of cable (item 12) to
breaker
stud of circuit
inboard terminal
with l"ockwasher (item 4) and nut (item 3).
M O D E L{ S }
AFFECTED
Attach the ring end of cable assembly (item
(copper) terminal
stud
1l-) to the outboard
breaker with lockwasher
of the circuit
(item 4) and nut (item 3).
h.
clamp on
cabfe (item 11) terminal
Installand
negative post of the forward battery
clamp nut.
tighten
i.
C o a t c a b l e c J - a m pw i t h
Install
k
cover
over
light
battery
mineral
grease.
(Factory Use Only)
lnlormation
added to:
O W N E R M A N U A L{ S )
compartment.
Start APU to energize the system and check
circuit
that components in the affected
M A N U A L{ S )
SERVICE
PARTSMANUAL(S)
CAUTION
dishave been left
If domestic batteries
period
AC
and
connected for an extensive
power has not been applied during the rnwarms up to a
the refrigerator
terval,
point where it will
draw excessive DC
energized by the
current when initially
To prevent exreconnected batterj-es.
drain due to the above
cessive battery
is completed'
reason, after modification
apply AC power to the coach then position
"3"
to the number
thermostat
refrigerator
and operate until- the unit cycles
setting
thermostat
Setting the refrigerator
off.
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PagelotJ
WARRANTYMANUAL(S}
OTHER
{FMC
DATE
FMCCorporation
MotorCoachDivision
333Brokaw
Road Box664 santa
claracalilornra
950s2
O uRcerur
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,,*ou"o",#WfufrJ*h(mr^
2939 40002
GROUP
E ANAGER
A T T E N T I O NS: E R V I C M
CAUTION (CONT.)
SUBJECT
and driving
the coach for approximat
ly two hours immediately
following
reconnec
tion of the domestic ba':teries
will
also
prevent excessive battery drain, as the
automotive alternator
will
then be providing the refrigerator
voltage.
operating
+nrv,
{ !"*&*
M A X L . SNAVELY V
Service
M O D E L( S I
AFFECTED
Manager
(Factory Use Only)
Information
addedto:
O W N E RM A N U A L( S )
M A N U A L( S )
SERVICE
PARTSMANUAL(S}
W A R R A N T YM A N U A L( S )
OTHER
RVD€4 (6.73)
Page-iot
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