JLG 4017PS Service Manual - Manual (Page 107)

5-11 3706PS, 3707PS, 4014PS, 4017PS, 33.7, 37.6, 37.7
Axles, Drive Shafts, Wheels and Tires
7. Axle overheating. 1. Oil level too high. 1. Fill oil to correct level. Refer to
Section 2.5, “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 fill to correct
level. Refer to Section 2.5,
“Fluids, Lubricants and
Capacities.”
3. Dragging park brake. 3. Adjust park brake cable as
needed. Refer to Section 5.5,
“Mechanical Park Brake.”
8. High steering effort required. 1. Steering (hydraulic) system not
operating properly.
1. Refer to Section 8.5, “Hydraulic
Circuits.”
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 Section 8.5, “Hydraulic
Circuits.”
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 Section 5.7, “Brake
Inspection.”
2. Brake discs damaged. 2. Replace brake discs.
11. Brakes will not engage. 1. Brake (hydraulic) system not
operating properly.
1. Refer to Section 8.5, “Hydraulic
Circuits.”
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 Section 5.7, “Brake
Inspection.”
2. Brake (hydraulic) system not
operating properly.
2. Refer to Section 8.10.4,
“Service Brake Bleeding.”
3. Brake piston o-rings and seals
damaged (leaking).
3. Replace o-rings and seals.
Problem Possible Causes Remedy