Advertisement
5- 6 BRAKES
Figure 9-Using Brake Booster Separating Fixture
NOTE :
Care must be exercised not to
damage or loosen studs in housings .
Also
FLOATING CONTROL
VALVE RETAINER
i
w
PRIMARY DIAPHRAGM
AIR VALVE PUSH
ROD ASSEMBLY
SECONDARY POWER
PISTON BEARING
POWER HEAD
SILENCER
HOUSING DIVIDER
Figure 10-Power Piston Group
take care that no pressure is exerted on
plastic power piston .
6. Back off the hold down bar sufficiently
to remove front housing.
FRONT HOUSING GROUP DISASSEMBLY
1 . Remove the power piston return spring
and piston rod retainer.
2. Remove the vacuum check valve and
grommet from the front housing . If the check
valve is defective or the grommet cracked, cut
or damaged it must be replaced .
3. Remove the front housing seal .
REAR HOUSING GROUP DISASSEMBLY
1 . Remove the boot retainer and piston rod
boot from the rear housing.
2. Remove the felt silencer from inside the
piston rod boot .
3. Remove the power piston group from the
rear housing .
4. Remove the rear housing seal from the
center opening in the rear housing.
RETAINING RING
PRIMARY
POWER PISTON
REACTION DISC
REACTION PISTON
SECONDARY
DIAPHRAGM
AIR VALVE SPRING
SECONDARY POWER
PRIMARY
PISTON
SUPPORT PLATE
PISTON ROD
SECONDARY
SUPPORT PLATE
RETAINER
A-6197
Advertisement
