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TM 5-4210-220-12
Table 4-2 UNIT TROUBLESHOOTING - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
13k ENGINE OVERHEATING
Step 1. Check shutter is open.
Set shutter to MAN in cab.
Step 2. Check coolant level.
Find leak and repair. Top up as required.
Step 3. Check radiator core.
Remove foreign material externally or internally.
Step 4. Remove coolant filler cap and operate engine, checking for combustion gases in the system.
Refer to Direct Support level.
Step 5. Check fan belts for wear.
Replace fan belts, (see para. 4-20).
14a CONSTANT NOISE FROM AXLES
Step 1. Sample lubricant.
Drain and refill with correct lubricant.
Step 2. Check lubricant level.
Top up as required.
Step 3. Excessive pinion or drive gear wear, or bearings worn.
Refer to Direct Support.
14b REAR OR FRONT WHEELS DO NOT DRIVE (DRIVE SHAFT ROTATING)
Step 1. Broken axle shaft.
Replace, (see para. 4-26).
Step 2. Broken pinion.
Replace - refer to Direct Support.
Step 3. Drive teeth stripped.
Replace drive gear, refer to Direct Support.
4-55
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