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TM 5-4210-220-12
Table 4-2 UNIT TROUBLESHOOTING - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
12h TRUCK MOVES IN NEUTRAL
Check shift linkage adjustment.
Adjust as required, (see para. 4-12).
12j TRANSMISSION HAS HIGH STALL SPEED
Check for low oil level.
Add oil.
13a STARTER WILL NOT CRANK MAIN ENGINE
Step 1. Check battery indicators are green.
a. If not green, charge batteries.
b. If green, check all connections between battery and starter for tightness and corrosion.
Clean/tighten as required.
Step 2. Connect jumper between B and S terminal on motor.
a. If starter motor starts, fault is in ignition circuit, (see para. 4-24).
b. If starter motor will not start, check solenoid and motor windings, (see para. 4-24).
Step 3. Check ignition circuit.
Replace components as required, (see para. 4-24).
13b ENGINE CRANKS BUT WILL NOT START
Step 1. Air in fuel system.
Remove fuel inlet to fuel rack on cylinder head and prime fuel system.
Step 2. Check for blocked or broken fuel line.
Replace, (see para. 4-23).
Step 3. Check for choked fuel filter.
Replace both fuel filters, (see para. 4-23).
Step 4. Remove fuel tank fill cap if engine runs smoothly, tank vent is blocked.
Clean/replace vent
4-51
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