JLG 4017PS Service Manual - Manual (Page 101)

5-5 3706PS, 3707PS, 4014PS, 4017PS, 33.7, 37.6, 37.7
Axles, Drive Shafts, Wheels and Tires
5. Apply Loctite ® 271™ to each mounting bolt.
6. Install the axle mounting bolts and nuts. Tighten and
torque as required:
7. 4014PS & 4017PSOnly: Install the frame level
mount to the front axle (if necessary). Move the
cylinder into position on the axle cylinder anchor.
Insert a cylinder mount pin through the cylinder and
cylinder anchor. Secure the cylinder mount pin.
8. Apply multi purpose grease through the self tapping
lube fitting to lubricate the self align bearing and the
cylinder mount pin.
9. Install the drive shaft assemblies. Refer to Section
5.10.5, “Drive Shaft Installation.”
10. If reinstalling an axle previously removed from the
machine, position the driveshaft yoke on the axle
according to the alignment marks made earlier. If
installing a new axle, note the position of the
driveshaft yoke at the transmission. Align the
driveshaft yoke on the axle in the same plane as the
yoke on the transmission.
11. Tighten the axle oil drain plug (1), loosen and
remove the axle oil fill plug (2). Refer to Section 2.5,
“Fluids, Lubricants and Capacities,” for proper oil
and capacities.
12. Rotate wheel hubs 90 degrees so the drain plug
becomes the fill plug (3). Refer to Section , “,” for
proper oil and capacities.
13. Install the wheel and tire assemblies. Refer to
Section 5.11.2, “Installing Wheel and Tire Assembly
onto Machine.”
14. Carefully remove the jack, hoist or overhead crane
and sling supporting the axle.
15. Carefully raise the machine using a suitable jack or
hoist. Remove the supports from beneath the frame
and lower the machine to the ground.
16. Remove the blocks from the front and rear of both
tires on the other axle.
Note: ALWAYS use new o-rings when servicing the
machine.
17. Install new o-rings into the fittings. Lubricate the
o-rings with clean hydraulic oil.
18. Uncap and connect the steering and brake lines at
their axle fittings.
19. Check the hydraulic reservoir oil level.
20. Start the engine. Turn the steering wheel several
times lock to lock, operate the frame tilt function
several times in both directions and check the
function of the brakes. Check for hydraulic leaks,
and tighten or repair as necessary.
21. Install the fender assembly. Torque the mounting
bolts to 219 Nm (162 lb-ft).
22. Properly connect the battery.
23. Close and secure the engine cover.
24. Remove the Do Not Operate Tag from the ignition
key switch and the steering wheel.
Note: The service brake circuit will need to bled after
axle installation. Refer to Section 8.10.4, “Service Brake
Bleeding.”
5.5 MECHANICAL PARK BRAKE
5.5.1 Mechanical Park Brake Removal
1. Park the machine on a firm, level surface, level the
machine, fully retract the boom, lower the boom,
place the travel select lever in the (N) NEUTRAL
position, engage the parking brake, straighten all
wheels and shut the engine OFF.
2. Place a Do Not Operate Tag on both the ignition key
switch and steering wheel.
3. Open the engine cover. Allow the system fluids to
cool.
4. Properly disconnect the battery.
5. Remove park brake cable from park brake lever.
Machine
Front Axle
Bolts Torque
Rear Axle
Bolts Torque
3706PS. 3707PS,
33.7, 37.6 & 37.7
780-820 Nm
(575-605 lb-ft)
780-820 Nm
(575-605 lb-ft)
4014PS & 4017PS
550 Nm
(406 lb-ft)
550 Nm
(406 lb-ft)
MT0220
3