Table 3-3. Operator Troubleshooting-continued -706880120

TM 5-4210-233-14&P-1

Table 3-3. Operator Troubleshooting - Continued

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

ENGINE - Continued

ENGINE FOOT THROTTLE WILL NOT OPERATE

Check wires and plugs connecting foot throttle to engine.

If wiring is damaged refer to Unit Maintenance for repair.

EXCESSIVE BLACK OR GREY EXHAUST SMOKE

Step 1. Check fuel grade.

Drain fuel tank and refill with correct fuel.

Step 2. Check if engine is overloaded.

Reduce speed and select lower gear range.

TIRES

EXCESSIVE TIRE WEAR

Step 1. Check tire pressure.

Inflate to correct pressure.

Step 2. Check that differential lock is not engaged.

Be sure differential lock is engaged only when on slippery ground or operating off road.

BRAKES

CAUTION

Truck brakes that have been applied for a long period, applied

harshly due to hill descent, or for emergency stop, may

overheat. Change to lower gear range when possible.

BRAKE SHOES SMELL OF BURNING

Check if brake drums have foreign material inside, e.g., sand or mud.

Hose down brake drums when cool to touch. Be sure all material is removed.

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