Table 3-1. OPERATOR TROUBLESHOOTING - Continued
TEST OR INSPECTION
16j EXHAUST - EXCESSIVE BLACK OR GREY 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.
17 EXCESSIVE TIRE WEAR
Step 1. Insufficient tire inflation.
Inflate to correct pressure 70 psi (480 kPa).
Step 2. Prolonged driving with differential locks engaged.
Be sure differential locks are engaged only when on slippery ground or operating off-road.
18a BRAKE SHOES SMELL OF BURNING
Step 1. Truck brakes applied for long period, or harshly due to hill descend, or emergency stop.
a. Change to lower gear range.
b. Avoid harsh braking by careful driving.
Step 2. 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.
18b BRAKES GRAB OR TRUCK PULLS TO ONE SIDE
Step 1. Ride brakes for 100 yards to check if there is water in the hubs.
This will dry shoes and drums.
Step 2. Check linings are clean.
Refer to Organizational Level if covered in oil or grease.
Step 3. Check tire pressures.
Inflate tires to correct pressure, 70 psi (480 kPa).