Axle Assembly And Drive Shaft Troubleshooting - JLG G5-18A Service Manual

Axles, Drive Shafts, Wheels and Tires
5.3.7

Axle Assembly and Drive Shaft Troubleshooting

Problem
1. Excessive axle noise while
driving.
2. Intermittent noise when
traveling.
3. Vibration or intermittent noise
when traveling.
5-6
Cause
1. Oil level too low.
2. Axle and/or wheel end housings
filled with incorrect oil or oil level
low.
3. Incorrect alignment of ring and
pinion gears.
4. Incorrect pinion (input) shaft
bearing preload.
5. Worn or damaged bearings.
6. Worn or broken gear teeth.
7. Contamination in the axle.
8. Axle housing damaged.
1. Universal joint(s) worn or
damaged.
2. Differential ring and/or pinion
gears damaged.
1. Drive shaft universal joint(s)
assembly incorrectly tightened.
2. Drive shaft universal joint(s)
worn or damaged.
3. Drive shaft damaged/
unbalanced.
Remedy
1. Fill oil to correct level. (Refer to
Section 2.3, "Fluids, Lubricants
and Capacities.")
2. Drain axle and/or wheel end
housings and fill to correct level
with Mobilfluid® 424 Tractor
Hydraulic Fluid. (Refer to
Section 2.3, "Fluids, Lubricants
and Capacities.")
3. Correct alignment by adding or
removing shims as needed.
4. Correct bearing preload by
adding or removing shims as
needed.
5. Replace bearings as needed.
6. Replace gears as needed.
7. Drain axle and/or wheel end
housings and fill to correct level
with Mobilfluid® 424 Tractor
Hydraulic Fluid. (Refer to
Section 2.3, "Fluids, Lubricants
and Capacities.")
8. Replace damaged parts.
1. Repair or replace universal
joints as needed.
2. Determine cause and repair as
needed.
1. Tighten capscrews to correct
torque.
2. Repair or replace universal
joints as needed.
3. Replace drive shaft as needed.
G5-18A, 2505