CHAPTER 2: VEHICLE MAINTENANCE lNSTRUCTlONS
2 - 1 6 . 1 M E C H A N I C A L T R O U B L E S H O O T I N G - C o n t i n u e d
D R I V E R S C O N T R O L S
Vehicle will not steer in either direction.
Do step A.
Engine does not respond properly to throttle
Do step E.
Vehicle will steer in only one direction.
Do step A.
Depressing brake pedal will not stop vehicle
Do step B.
No back pressure, or insufficient pressure, when
operating purge pump.
Do steps F through I.
Excessive back pressure when operating purge
Brakes dragging at one or both sides of vehicle.
Do steps C and D.
Do steps J through M.
Check vehicle maintenance record for
proper lubrication of steering, brake, and
throttle linkages. If proper lubrication
maintenance has been performed (refer to
TM 9-2350-256-10), perform the following
A Open left rear exhaust deflector door and
transmission access door. While an assistant moves
steering wheel from full-right to full-left turn,
observe movement of transmission steer lever on
steer valve body of transmission. If transmission
steer arm does not move, check linkage and
repair/replace broken or missing parts. If
transmission steer linkage does not move, check
steer linkage adjustment (see paragraph 9-73). If all
mechanical linkages are properly adjusted and move
freely, notify Direct Support Maintenance.
B Open rear exhaust deflector grille doors and
access doors. Observe brake
adjustment gage and alignment mark on brake rod
(see paragraph 9-80). If brake adjustment gage and
alignment mark on brake rod do not line up, adjust
brake. Check adjustment on brake air valve linkage
(see paragraph 7-1) and adjust if required.
C Open rear exhaust deflector grille doors and
transmission access doors. With brakes released,
check to see that each brake-supply-and-slack-
adjustment lever (right and left) is touching the
stops. If brake-apply-and-slack-
adjustment levers do not touch their respective
stops, adjust brake linkage (see paragraph 9-80).
2-40.12 Change 1