AUXILIARY POWER UNIT
QUICK GUIDE TO TROUBLESHOOTING (CONTINUED)
Item
STACKER (cont.)
PRIMARY HYDRAULIC PUMP
BACKUP HYDRAULIC PUMP
NBC VENTILATED FACE PIECE SYSTEM
Problem
PROJECTILE TRAY WILL NOT SLIDE, OR SLIDES WITH
DIFFICULTY
PROJECTILE TRAY DOES NOT LOCK IN POSITION
PROJECTILE TRAY HAS EXCESSIVE PLAY ON SUPPORT SHAFT
INSUFFICIENT OR NO SYSTEM OIL PRESSURE
LOSS OF HYDRAULIC PRESSURE DURING OPERATION
PUMP DOES NOT OPERATE
PUMP OPERATES lNTERMlTTENTLY
INSUFFICIENT OR NO AIR FLOW AT QUICK-DISCONNECT
FITTINGS
AIR PURIFIER MOTOR DOES NOT OPERATE
M3 HEATER DOES NOT OPERATE
ENGINE CRANKS BUT FAILS TO START
ENGINE OVERHEATING
ENGINE STARTS BUT FAILS TO KEEP RUNNING
ENGINE HARD TO START
ENGINE HARD TO START IN COLD WEATHER
Solution or Reference
See page 2-241
See page 2-241
Adjust projectile tray rollers
(p 12-38).
See page 2-242
See page 2-242
See page 2-244
See page 2-244
See page 2-246
See page 2-246
See page 2-246
See page 2-252
see page 2-258
See page 2-260
See page 2-261
See page 2-261
2-59
Change 4
TM 9-2350-267-20
