JLG 4017 Service Manual - Manual (Page 69)

5.7 4017
Axles, Drive Shafts, Wheels and Tires
5.3.6 Axle Assembly and Drive Shaft Troubleshooting
Problem Cause Remedy
1. Excessive axle noise while
driving.
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. Fill oil to correct level. (Refer to
Section 2.4, “Fluids, Lubricants
and Capacities.”)
2. Drain axle and/or wheel end
housings and fill to correct level
with Mobilfluid 424® ISO Grade
46. (Refer to Section 2.4,
“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® ISO Grade
46. (Refer toSection 2.4,
“Fluids, Lubricants and
Capacities.”)
8. Replace damaged parts.
2. Intermittent noise when
traveling.
1. Universal joint(s) worn or
damaged.
2. Differential ring and/or pinion
gears damaged.
1. Repair or replace universal
joints as needed.
2. Determine cause and repair as
needed.
3. Vibration or intermittent noise
when traveling.
1. Drive shaft universal joint
assembly(ies) incorrectly
tightened.
2. Drive shaft universal joint(s)
worn or damaged.
3. Drive shaft(s) damaged/
unbalanced.
1. Tighten capscrews to correct
torque.
2. Repair or replace universal
joints as needed.
3. Replace drive shaft(s) as
needed.