Download 1 - Pole Shift Survival Information

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THE BACKYARD
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are separsted from the.m&te{) c&n- .
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wt iI- ..^^.... - --nit
UC1 vy LIIt; yaLuuII1
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is wi;y you ’
don’t have as good a ‘tfeefi’, with .m
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pbwer biakes as yoli ‘do with manbril
pressure, is at the properUle&l. Like.
brakes where the brake pedal is lin$ed
pitiportioning
valves, metering valves
righ.t to, the master cylinder.
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rarely malfunction. --However, if thl
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metering -valve, is not operating propOPERATiON
erly, U~JJKL& stress is placed on the
Most POWIer brake ,units consist
J%e pqwer’brake assist unit is located &: I-,
front-$,rakes. reducing braking action
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Ua.o!Lclll~.VL
Al piiton, control valves,
tweeil the master,cylinder
and‘ the’ fiie f i.
atid greatly increasing
frdnt brake .wall. 7: e vacuum check:valve
on this&
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and a vacuuin connection
f&i
th,e
wear.
unit has- -a spec’ral connectnr Where. a
tl
--‘-:-c,LglLlc :-r-1.II‘lilKC manifold.
When
yodr
vacuum gauge can be qttached.
: ’ Check thk metering valve by apply;:.
.
foot is off thej brake and the vacm&.
ing the..br&os ‘very slowly ,(engine
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UIIIL 1s m me released l&ition,n thk
$nJ. If the .m&.ringvaive
is operating
’ ~a~uut& systw--.i+ke
port is closed!
y :
tliere will. be fia ‘slight change in
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specia!:,j&ospheric
port .remai$
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-I pedal pressure at about one inch bf
open
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pedal t ravel-it
should. fkel like a
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side
of
the
vat
Suum
piston
to
the
othei.)
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slight .bump. If the ‘valye, is not
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J ms malntams tqual,.pqflre
bn the:,
m
aperating ii can be easily replaced ’
3
pistoq and-$eFps it in the qff .poii$on, ;,
by disconnectine‘it
.from ‘the brake
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When
you
hit
the
‘brake,
the
a‘tI’
b’
”
line and careful& installing the’new
.
. .a
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p
mospnenc
port closes and the vacu-.
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urn
port
open
s:
Vacuum
from
the.enafter installing
the new valve-as..
,x
gine then .NI(:ks the &-it. ,piston for.*
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they
should
be
any
.time
the
brake
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’ ward against 1the master cvlindi; opersystem i&.opened..
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ating rod and actuates the brakes.- lg
COMB&TlbN
VALVES
.
‘the power unit fails or the ‘engolne dies,.
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there- is--usudly -enouhmva&um
re--.
1- ---113
1-97 1-Ce*eral-.+lotbrs+nti-Tm$njng
i’n ihe .s stem’ to &ve- you
, .duced a valve that ‘combiries the
._
assisted braking ifor- a few ~edbnds.
warning system,, proportioning,’
and
But after that.you’re going-& have to
meteiing .functions all in one unit.
use plenty of leg power.
‘.
Ford Eol!owed in’1972 with the same
Thk important thing to remember,
type unit and now most n&’ cars
aslfth’ pow& brakes is :don’t ‘freak‘ out
: utilize : a combiniiion-type
calve.
if&the power fails ‘or the ca; dies. You
These combination
9alves a;e norcan
mally* locate,d,>.at or: near the master
altiays
stop- a power-brake
.cylindQ ,,(check g manual for tl$F, . equipped. car nianu$lly in. a reason-‘.
a,ble distance-you
just have to put “:
~ .location .and specifics on your car).
: The entire unit, must be replaced if h a lot of must
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