Bellows-To-Booster Body Engagement; Bellows Removal Or Installation; Disassembly Or Assembly—Reaction Components And Push Rod-To-Valve Hub; Disassembly Or Assembly—Control Valve Components-To-Hub And Diaphragm - Ford 1964 F-100 Shop Manual

P A R T 2-3-F-250 AND F-350, AND P-SERIES BRAKE SYSTEMS 2-31
REACTION
PLUNGE
DIAPHRAGM ASSEMBLY
RUBBER REACTION RING
REACTION CONE
PUSH ROD ASSEMBLY
\
\
REACTION LEVER
RING ASSEMBLY
FIG. 29—Disassembly or Assembly—Reaction Components, and
Push Rod-to-Valve Hub
H1267-A
BOOSTER BODY
FIG. 27-Bellows-to-Booster
Body Engagement
rubber grommet from the booster
body.
3. R e m o v e the rubber boot from
the mounting bracket and valve op-
erating rod.
4. R e m o v e the retaining nuts, and
disassemble the mounting bracket
from the booster end plate. R e m o v e
the gasket from the end plate.
5. R e m o v e the large C-nng that
retains the rear seal adapter assem-
bly to the booster end plate (Fig. 26).
6. Disengage the bellows from the
booster body by pushing the bellows
into the vacuum chamber (Fig. 27).
7. Scribe a line across the booster
body and end plate to facilitate
proper alignment at assembly. Re-
m o v e the bolt and nut from the
clamp band, remove the clamp band,
and separate the end plate from the
booster body. R e m o v e (he dia-
phragm return spring.
8. Separate the bellows, control
valve, and diaphragm assembly from
the end plate. R e m o v e the O-ring
that fits between the hub rear seal
FIG. 28—Bellows Removal or
Installation
adapter assembly and the end plate
(Fig. 26).
9. R e m o v e the large bellows re-
tainer ring and the bellows assembly
from the diaphragm and valve as-
sembly (Fig. 28).
10. R e m o v e the retainer, support
rings, bellows stay, and protector
from the bellows (Fig. 26).
11. R e m o v e the booster push rod
assembly, the reaction lever and ring
assembly, and the rubber reaction
ring from the control valve hub
(Fig. 29). R e m o v e the two plastic
plunger guides from the control
valve plunger.
12. R e m o v e the retainer, the
cushion ring, and the reaction cone
from the booster push rod, then dis-
assemble the levers from the reaction
ring (Figs. 26 and 29).
13. Remove the hub rear seal and
adapter assembly from the rear of
the control valve hub, then separate
the hub and plunger assembly from
the diaphragm. R e m o v e the retainer,
the reaction load ring, the return
spring, and the atmospheric valve
from the hub and plunger, then slide
the plunger out of the hub (Fig. 30).
R e m o v e the O-ring from the front
side of the diaphragm. Remove the
hub rear seal from the adapter as-
sembly.
HUB REAR SEAL AND
ADAPTER ASSEMBLY
DIAPHRAGM
O-RING
IHUB-TO-DIAPHRAGMI
REACTION
LOAD RING
W
'/
RETAINER
RETURN SPRING
CONTROL VALVE HUB
CONTROL VALVE PLUNGER
H1268A
FIG. 30—Disassembly or Assembly—Control Valve Components-to-Hub
and Diaphragm