Lull 944E-42 Service Manual - Manual (Page 77)

5-5 944E-42
Axles, Drive Shafts, Wheels and Tires
Note: The axle will oscillate freely when the cylinder
mounting pin is removed.
13. Remove the four capscrews, locknuts and hardened
washers (3) securing the front or rear axle supports
(rotating trunnions) to the frame.
Note: Remove the capscrews at equal intervals to avoid
binding.
14. Remove the axles from the machine using the jack,
hoist or overhead crane and sling supporting the
axle. DO NOT raise or otherwise disturb the machine
while removing the axle. Balance the axle and
prevent it from tipping, turning or falling while
removing it from beneath the machine.Place the axle
on a suitable support or holding stand.
5.3.6 Axle Installation
1. Before proceeding, ensure that the machine will
remain in place during axle installation. Block the
front and rear of both tires on the axle that is already
installed on the machine.
2. If applicable, raise the machine using a suitable jack
or hoist. Place suitable supports beneath the frame
and lower the machine onto the supports, allowing
enough room for axle installation. Ensure that the
machine will remain in place during axle installation.
3. Using a suitable jack, hoist or overhead crane and
sling, remove the axle from its support or holding
stand. Balance the axle and prevent it from tipping,
turning or falling while positioning it beneath the
machine. DO NOT raise or otherwise disturb the
machine while installing the axle. Keep the axle
supported and balanced on the jack, hoist or
overhead crane and sling throughout the installation
procedure.
Note: ALWAYS replace elastic locknuts with new elastic
locknuts to help ensure proper fastening.
Note: If you are installing the rear axle it may be easier
to install the capscrews if the transfer carriage was
moved all the way forward.
4. Position the axle under the frame, and align the
support trunnion holes with the holes in the frame.
5. Coat the capscrews (3) with anti-seize compound.
Install the capscrews, locknuts and hardened
washers securing the axle supports to the frame.
Torque capscrews to 600 - 680 lb-ft (813 - 922 Nm).
Note: If new frame sway (front) or stabilizer (rear)
cylinder bearings (4) have been installed in the axle, the
fracture (5) in the bearing race must be positioned at the
9 o’clock or 3 o’clock position as shown below.
6. Move the cylinder into position on the axle cylinder
anchor. Insert a cylinder-mount pin (2) through the
cylinder and cylinder anchor. Secure the cylinder-
mount pin with one capscrew and new locknut.
7. Apply multi-purpose grease through the self-tapping
lube fitting to lubricate the self-align bearing and the
cylinder-mount pin.
8. Install the drive shaft assemblies. (Refer to Section
5.4.5, “Drive Shaft Installation.”)
9. 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.
10. Install the wheel and tire assemblies. Refer to
Section 5.5.2, “Installing Wheel and Tire Assembly
onto Machine.”
11. Carefully remove the jack, hoist or overhead crane
and sling supporting the axle.
12. Carefully raise the machine using a suitable jack or
hoist. Remove the supports from beneath the frame
and lower the machine to the ground.
13. 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.
14. Install new o-rings into the fittings. Lubricate the
o-rings with clean hydraulic oil.
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