JLG G5-18A Service Manual - Manual (Page 68)

Axles, Drive Shafts, Wheels and Tires
5-8 G5-18A, 2505H, 25.5
7. Axle overheating. 1. Oil level too high. 1. Fill oil to correct level. (Refer to
Section 2.4, “Fluids, Lubricants
and Capacities.”)
2. Axle and/or wheel end housings
filled with incorrect oil or oil
contaminated or oil level low.
2. Drain axle and/or wheel end
housing and fill to correct level.
(Refer to Section 2.4, “Fluids,
Lubricants and Capacities.”)
8. High steering effort required. 1. Steering (hydraulic) system not
operating properly.
1. Refer to the appropriate Axle
Repair Manual.
2. Excessive joint housing swivel
bearing preload.
2. Correct bearing preload by
adding or removing shims as
needed.
3. Worn or damaged swivel
bearings.
3. Replace swivel bearings as
needed.
9. Slow steering response. 1. Steering (hydraulic) system not
operating properly.
1. Refer to the appropriate Axle
Repair Manual.
2. Steering cylinder leaking
internally.
2. Repair or replace steering
cylinder as needed.
10. Excessive noise when brakes
are engaged.
1. Brake discs worn. 1. Check brake discs for wear.
Refer to appropriate Axle Repair
Manual.
2. Brake discs damaged. 2. Replace brake discs.
11. Brakes will not engage. 1. Brake (hydraulic) system not
operating properly.
1. Refer to the appropriate Axle
Repair Manual.
2. Brake piston o-rings and seals
damaged (leaking).
2. Replace o-rings and seals.
12. Brakes will not hold the
machine or braking power
reduced.
1. Brake discs worn. 1. Check brake discs for wear.
Refer to the appropriate Axle
Repair Manual.
2. Brake (hydraulic) system not
operating properly.
2. Refer to the appropriate Axle
Repair Manual.
3. Brake piston o-rings and seals
damaged (leaking).
3. Replace o-rings and seals.
5.4.7 Axle Assembly and Drive Shaft Troubleshooting (Continued)
Problem Possible Causes Remedy