Lull 944E-42 Service Manual - Manual (Page 160)

Axles, Drive Shafts, Wheels, Tires and Brakes
5.14 Model 644E-42/944E-42 Rev. 6/04
7. Axle overheating. 1. Oil level too high.
2. Axle and/or wheel end housings
filled with incorrect oil or oil
contaminated or oil level low.
1. Fill oil to correct level with
Universal Tractor Fluid. (Refer to
the appropriate Owners/
Operators Manual.)
2. Drain axle and fill to correct level
with Universal Tractor Fluid.
(Refer to the appropriate
Owners/Operators Manual.)
8. High steering effort required. 1. Steering (hydraulic) system not
operating properly.
2. Excessive joint housing swivel
bearing preload.
3. Worn or damaged swivel
bearings.
1. Refer to Section 8.8, “Hydraulic
Circuits and Troubleshooting.”
2. Correct bearing preload by
adding or removing shims as
needed.
3. Replace swivel bearings as
needed.
9. Slow steering response. 1. Steering (hydraulic) system not
operating properly.
2. Steering cylinder leaking
internally.
1. Refer to Section 8.8, “Hydraulic
Circuits and Troubleshooting.”
2. Repair or replace steering
cylinder as needed.
10. Excessive noise when brakes
are engaged.
1. Brake discs worn.
2. Brake discs damaged.
1. Check brake discs for wear.
(Refer to the appropriate
Owners/Operators Manual.)
2. Replace brake discs.
11. Brakes will not engage. 1. Brake (hydraulic) system not
operating properly.
2. Brake piston o-rings and seals
damaged (leaking).
1. Refer to Section 8.8, “Hydraulic
Circuits and Troubleshooting.”
2. Replace o-ring and seals.
12. Brakes will not hold the
vehicle or braking power
reduced.
1. Brake discs worn.
2. Brake (hydraulic) system not
operating properly.
3. Brake piston o-rings and seals
damaged (leaking).
1. Check brake discs for wear.
(Refer to the appropriate
Owners/Operators Manual.)
2. Refer to Section 8.8, “Hydraulic
Circuits and Troubleshooting.”
3. Replace o-ring and seals.
5.3.8 Axle Assembly and Drive Shaft Troubleshooting (Continued)
Problem Cause Remedy