Front Drive Axle Repair; Removal; Installation; Special Tools - Manitowoc Grove 5540F Service Manual

AXLES/DRIVE SHAFTS/WHEELS AND TIRES

FRONT DRIVE AXLE REPAIR

Removal

A raised and badly supported machine can fall on you
causing severe injury or death. Position the machine on a
firm, level surface before raising one end. Ensure that the
other end is securely chocked. Do not rely solely on the
machine hydraulics or outriggers to support the machine
when working under it.
Disconnect the battery cables while you are under the
machine, to prevent the engine from being started.
1. Loosen the wheel lug nuts then raise and support the
machine on axle stands or blocks positioned under the
chassis frame. Remove the wheels.
2. Disconnect the drive shaft from the axle by removing the
eight bolts, lockwashers and nuts securing the drive
shaft to the parking brake disc plate.
3. Disconnect parking brake hydraulic line from the parking
brake. Plug and cap hose and fitting.
4. Disconnect and plug the hydraulic hoses to the steering
cylinders.
5. Disconnect the brake lines the front axle.
6. Support the axle on a trolly jack.
8-4
WARNING
Published 10-21-2010, Control# 198-04
5540F/YB5515 SERVICE MANUAL
7. Loosen and remove the eight mounting bolts and nuts.
8. Remove the axle from the machine.

Installation

1. Place the axle on a trolly jack.
2. Position the axle and trolly jack under the machine
frame.
3. Install the eight bolts and nuts with the nuts on top of the
axle. Tighten the bolts to a torque of 575 lb-ft (782 Nm).
4. Connect the brake line or hose to the axle.
5. Connect the hydraulic hoses to the steering cylinder.
6. Connect the hydraulic line to the parking brake .
7. Connect the front drive shaft to the parking brake disc
plate using eight bolts, lockwashers and nuts.
8. Bleed the air from both service and parking brake
system. See Section 7.
9. Bleed the air from the steering circuit. See Section 8.
10. Install the wheels to the axle. Lower the machine.
Torque the lug nuts to 500 lb-ft (680 Nm).

Special Tools

To completely disassemble and assemble the front drive
axle, special service tools are required. Unless you have
these or similar tools DO NOT service the axle.
The tools illustrated on the next page are available from your
Grove dealer.