TM 9-2320-289-20
7-8.
MASTER CYLINDER AND POWER BOOSTER REPLACEMENT (Cont).
NOTE
Only M1009 uses pedal rod boot (8), retain for installation.
3.
Remove 2 locknuts (9) and pedal rod boot (8), Remove 4 locknuts (6), and remove power
booster (5) and seal (10). Inspect seal for damage and discard as required, Discard locknuts.
b.
INSTALLATION
NOTE
When replacing power booster (5) assembly, ensure that proper power
booster is used. M1009 housing is machined flat or has 40°-50° bevel at
pushrod end and has a broadcast code sticker with FY or KA on it,
All other models are 20°-30° beveled and have a broadcast code sticker
with CM on it.
If installing master cylinder (4), perform steps 2 and 3.
Only M1009 uses pedal rod boot (8).
1.
Install seal (10) on power booster (5) studs. Install power booster on engine compartment studs
(7). Install 4 new locknuts (6) on engine compartment studs. Install pedal rod boot (8) and 2 new
locknuts (9) on power booster studs. Tighten locknuts to 25 Ib.-ft. (34 Nm).
TA49672
7-22
Change 2