Inspection Procedure 14
INSPECTION PROCEDURE 14: SeizureNOTE: In the event of seizure, disassemble and replace the parts involved. Be sure to check all components for any irregularities and repair or replace as necessary.
DIAGNOSIS
STEP 1.Check the drive gear backlash (low).
Q: Is the drive gear backlash correct?
YES: Go to Step 2.
NO: Adjust the backlash. Then go to step 6.
STEP 2.Check the drive pinion turning torque (excessive).
Q: Is the drive pinion turning torque correct?
YES: Go to Step 3.
NO: Adjust it. Then go to Step 6.
STEP 3.Check the side bearing preload (excessive).
Q: Are the side bearing cap mounting bolts tightened to 69 - 78 Nm (51 - 58 ft. lbs.)?
YES: Go to Step 4.
NO: Tighten them to 69 - 78 Nm (51 - 58 ft. lbs.). Then go to Step 6.
STEP 4.Check the oil level.
Remove the filler plug and check the gear oil level.
Q: Is the gear oil level more than 8 mm (0.3 inch) below the bottom of the filler plug hole?
YES: Refill with Hypoid gear oil API classification GL-5 or higher, SAE viscosity Number 90, 80W. Then go to Step 6.
NO: Go to Step 5.
STEP 5.Check that Hypoid gear oil API classification GL-5 or higher, SAE viscosity Number 90, 80W is being used.
Q: Is Hypoid gear oil API classification GL-5 or higher, SAE viscosity Number 90,80W being used?
YES: Go to Step 6.
NO: Replace the oil. Then go to Step 6.
STEP 6.Check symptoms.
Q: Does the seizure still occur?
YES: Start over at Step 1.
NO: Diagnosis is complete.