JLG 3507 Service Manual page 50

Axles, Drive Shafts, Wheels and Tires
Problem
7. Axle overheating.
8. High steering effort required.
9. Slow steering response.
10. Excessive noise when brakes
are engaged.
11. Brakes will not engage.
12. Brakes will not hold the
machine or braking power
reduced.
5.8
Cause
1. Oil level too high.
2. Axle and/or wheel end housings
filled with incorrect oil or oil
contaminated or oil level low.
3. Dragging park brake.
1. Steering (hydraulic) system not
operating properly.
2. Excessive joint housing swivel
bearing preload.
3. Worn or damaged swivel
bearings.
1. Steering (hydraulic) system not
operating properly.
2. Steering cylinder leaking
internally.
1. Brake discs worn.
2. Brake discs damaged.
1. Brake (hydraulic) system not
operating properly.
2. Brake piston o-rings and seals
damaged (leaking).
1. Brake discs worn.
2. Brake (hydraulic) system not
operating properly.
3. Brake piston o-rings and seals
damaged (leaking).
Remedy
1. Fill oil to correct level with
Mobilfluid 424
Section 2.4, "Fluids, Lubricants
and Capacities."
2. Drain axle and fill to correct level
with Mobilfluid 424
Refer toSection 2.4, "Fluids,
Lubricants and Capacities."
3. Adjust park brake cable as
needed.
1. Refer to Section 8.9.8, "Steering
Cylinders."
2. Correct bearing preload by
adding or removing shims as
needed.
3. Replace swivel bearings as
needed.
1. Refer to Section 8.9.8, "Steering
Cylinders."
2. Repair or replace steering
cylinder as needed.
1. Check brake discs for wear.
Refer to Section 5.6, "Brakes."
2. Replace brake discs.
1. Refer to Section 8.8.3, "Brake
Test."
2. Replace o-rings and seals.
1. Check brake discs for wear.
Refer to Section 5.6, "Brakes."
2. Refer to Section 8.8.3, "Brake
Test."
3. Replace o-rings and seals.
3507, 3508, 3509, 3512, 3513, 4007, 4008, 4009, 4012, 4013
® ISO 46. Refer to
®
ISO 46.
Courtesy of Crane.Market