Lull 944E-42 Service Manual - Manual (Page 100)

Transmission
6-14 944E-42
6.11 TROUBLESHOOTING
This section provides an easy reference guide covering
the most common problems that may occur during
operation of the transfer case.
Note: Contact your local authorized Service Department
if internal transfer case repair is required during the
warranty period.
The transfer case should be checked, serviced and
repaired only by experienced service technicians who are
aware of all safety instructions and particular component.
6.11.1 Transfer Case Troubleshooting
Problem Cause Remedy
1. Excessive transfer case
noise.
1. Oil level too low. 1. Fill transfer case to correct level
with Mobilfluid 424 ®
(ISO Grade 46). (Refer to
Section 2.4, “Fluid and
Lubricant Capacities.”)
2. Transfer case filled with
incorrect oil.
2. Drain transfer case and fill to
correct level with Mobilfluid 424 ®
(ISO Grade 46). (Refer to
Section 2.4, “Fluid and
Lubricant Capacities.”
3. Excessive bearing “end play”. 3. Check bearing end play and
correct with shims as needed.
4. Worn or damaged bearings. 4. Replace bearings as needed.
5. Worn or broken gear teeth. 5. Replace gears as needed.
6. Contamination in transfer case. 6. Check for foreign particles.
7. Incorrect assembly of parts. 7. Check assembly of transfer
case components.