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BRAKES
AND
WHEELS
_
HUBS
AND
DRUMS
FIGURE
2l
-
Compressing
Diophrogm
with
Tool
)-9576
ogoinst chipping
or
domoge
to
plostic
ports.
Use
oir
hose
to
blow
out
dirt
ond cleoning
solvent
from
recesses
ond
internol
possoges.
When overhouling
o
power
broke unit, use
oll
Ports
fur-
nished
in the
repoir kits.
DISCARD
ALL
OLD
RUBBER
PARTS,
9
the reor
housing
with
o
so{t
hommer
to
breok
the bond
of the
dioPhrogm.
CAUTION: Press
down
firmlY
ogoinsf
bor
wrench
to
Prevent in'
ternol
dictphrogm
return
sPring
from
cousing
shells
io
flY
oPort
when bo/ts
ore
f
ullY
releosed
from
the
fixture.
Remove
bor
wrench.
front
shell,
re-
turn
spring, diophrogm,
ond
reor
shell
from fixture
bose.
Pry
off filter
retoiner
ond
remove
olr
fllter from
volve housing,
being
coreful not
to
chip
the
plostic
housing.
Remove
the
diophrogm
f
rom
dio-
phrogm
plote.
Remove
volve
retoiner
lock,
volve
ond rod
ossemblY.
Press
out
reoction disc
from diophrogm
plote
lFis.
22).
Diophrogm
Plote
Volve ond
Rod Assembly
Reoclion
Disc
Vqlve
Retqiner
Filter
Air
Filter
Diophrogm
Retqine r
FIGURE
22
-
Power Piston
GrouP
Do not
remove
beoring
seol
from
reor shell
unless
seol is
def
ective
ond
is
to
be reploced. To
remove seol,
sup-
port
reor shell
on two
blocks
of
wood
ond drive out the
seol
with
o
punch.
Discord
the
seol.
Cleoning
After
disossembly, immersion
of
oll
metol ports
in cleon broke fluid
or
o
broke
system
cleoner
is
recommended.
Plostic ports
should be cleoned
only
in
olcohol.
Core should be
token to
guord
Assembly
Press
new
seol
in
reor
shell
with
Seol
FIGURE
24
-
lnstolling
Beoring
Seol
with Tool
)-9540
Front Shell
Push
Rod Seol
Check
Volve
Push Rod
Reoction
Disc
Diophrogm
Plote
Volve
Retqiner
Lock
Diophrogm
\o
v
4
a
a
A
Reqr Shell
Beoring
Seol
s
Volve
ond
Rod
Assembly
Air
Filter
Filter
Reioiner
FIGURE
23
-
Power Broke
Components
-
Less
Mosler CYlinder
lnstoller
J-9540
until outer flonge
of
tool
beors ogoinst
reor shell
surfoce
odiocent
to
seol.
Plostic
side
of
seol
is
to
be
next
to
seol instoller
(Fig,
24).
Apply
Rykon
fype
"O"
lubricont,
supplied
in
repoir
kit,
to
outside
diome-
ter
of
diophrogm
plote
hub
ond
beor-
ing
surfoces
of
volve plunger ot end
of
volve
ond rod
ossembly
ond
to
outer
edge
of
volve poppet
diophrogm.
CAUIION,
Be
certoin poppet
dio-
phrogm
is
positioned
on volve
os
shown
in
Figure
25.
lnsert
volve
ond rod
ossembly
in
volve hub
of
diophrogm
plote.
Press
down
on volve rod
to
position
poppet
in
volve
hub
ond
olion
oroove
in volve
plunger
with slot
in
diophrogm
plote.
lnsert
volve plunger lock ond
ossembly
diophrogm
in
groove
of
dioPhrogm
plote.
Assemble
oir
filter over
volve
rod ond
guide
in
position
in
volve
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