CHAPTER 7: MAINTENANCE OF TRANSMISSION AND OUTPUT REDUCTION DRIVES
TM 9-2350-256-20
7-1 REPLACE/SERVICE TRANSMISSION ACTUATING BRAKE AIR VALVE LINKAGE-Continued
c. ADJUSTMENT
WARNING
Ensure suitable blocking is in place prior to releasing brakes.
1
Release brakes.
2
Remove cotter pin (2) and clevis pin (3) and disconnect actuating brake air valve linkage (1) from actuating brake air
valve linkage lever (4) on transmission.
3
Loosen two rod end locknuts (5) on actuating brake air valve linkage (1) and turn linkage rod ends (6) to adjust free
length of actuating brake air valve linkage until clevis pin (3) can be inserted freely through linkage rod end and
actuating brake air valve linkage lever (4), with brake air valve linkage lever in released (down) position. Tighten two
rod end locknuts. Attach actuating brake air valve linkage to actuating brake air valve linkage lever with cotter pin (2)
and clevis pin.
NOTE
Mark (7) appears on linkage rod plunger (8) 3/4 inch (in.) (19.1 millimeters [mm] ) from edge of linkage
rod plunger stop (9).
4
Apply brakes and check position of mark (7). Mark must aline with edge of linkage rod plunger stop (9).
5
Loosen rod end locknut (5) at lower end of actuating brake air valve linkage (1) near output reduction drive (10), and
adjust linkage rod end (6) as required. Tighten rod end locknut.
NOTE
Follow-on maintenance:
Close engine transmission access doors (see paragraph 9-55)
7-2