TM 9-2350-256-20
CHAPTER 2: VEHICLE MAINTENANCE INSTRUCTIONS
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
V E N T I L A T I O N B L O W E R A S S E M B L Y - C o n t i n u e d
C
Check for low input due to low voltage batteries
while engine is not running. Perform battery
serviceability test (see Table 2-l). Recharge or
replace low voltage batteries. If blower still does not
come up to speed, go to step D.
D
Check generator for proper output while engine is
running. Troubleshoot APU generator output circuit
(see paragraph 2-19) and generator output circuit
(see paragraph 2-19).
E
Check for defective blower assembly. Troubleshoot
ventilating blower circuit (see paragraph 3-19).
F
Check for loose blower assembly. Tighten mounting
screw (see paragraph 6-101).
T R A N S M I S S I O N C E N T E R S E C T I O N A N D O U T P U T R E D U C T I O N G E A R S
SYMPTOMS
High transmission oil temperature.
Do steps A through E.
Vehicle will not drive in high range.
Do step F.
Vehicle will steer or pivot but will not drive in any
range.
Do step F.
Vehicle will drive but creeps in neutral.
Do step F.
Vehicle will not drive in low range.
Do step F.
Transmission cannot be down-shifted.
Do step G.
Vehicle will not drive in intermediate range.
Do step F.
A
Check transmission for proper oil level. Add oil if
low or drain to proper level if over full (refer to TM
9-2350-256-10).
B
Open side air inlet grille doors. Check transmission
oil cooler screens for restrictions. Remove all
restrictions from oil cooler screens.
C
Visually inspect transmission oil cooler air passages.
If transmission oil cooler air passages are restricted,
clean air passages using oil cooler cleaning tool
(Appendix B, item 137).
2-40.10 Change 1
