Table 4-2 UNIT TROUBLESHOOTING - Continued
TEST OR INSPECTION
10k WHEELS WILL NOT ATTEMPT TO RETURN TO STRAIGHT AHEAD POSITION FROM TURNS - Continued
Step 4. Check axle king pins.
Refer to Direct Support.
Step 5. Check steering pump oil flow.
a. Check belts are tight.
b. Check for vane seizure in pump and replace as required, (see para. 4-25).
10l WHEEL TURN ANGLE RESTRICTED
Check steering gear relief plungers.
Adjust as required.
11a EXCESSIVE TRUCK VIBRATION OR NOISE
Step 1 Check all drive line yokes are alined.
Disassemble and reassemble correctly, (see para. 4-26).
Step 2. Drive line out of balance.
Replace defective drive line. Look for missing balance weights, (see para. 4-26).
Step 3. Drive line bent.
Replace drive line, (see para. 4-26).
Step 4. Check universal joints.
Replace universal joint, (see para. 4-26).
11b HIGH PITCHED SQUEAL FROM CENTER BEARING AREA, OR GRINDING SOUND
Check center bearing wear.
Replace drive shaft center bearing.
12a TRANSMISSION HAS LOW STALL SPEED
Step 1 Engine not performing efficiently.
Refer to Engine Troubleshooting.