SkyTrak 6036 Service Manual - Manual (Page 144)

Axles, Drive Shafts, Wheels and Tires
5.8 Model 6036 Legacy
b. Axle Inspection, Internal Service and Repair
Note: Detailed axle service instructions (covering axle,
brakes and wheel-end safety, repair, disassembly,
reassembly, adjustment and troubleshooting information)
are provided in the ZF Axle Repair Manual, Model MS-T
3045, JLG P/N 8990419 (ZF P/N 5871 550 002).
The axle should be checked, serviced and repaired only
by experienced service technicians who are aware of all
safety instructions and particular component features.
c. Installation
The front and rear axle assemblies differ in that the front
axle assembly is equipped with a parking brake
mechanism and limited-slip feature; the rear axle has
neither. The steps below outline a typical axle installation
procedure, suitable for either the front or the rear axle
assembly.
1. Before proceeding, ensure that the vehicle will
remain in place during axle installation. Block the
front and rear of both tires on the axle that is already
installed on the vehicle.
2. If applicable, raise the vehicle using a suitable jack
or hoist. Place suitable supports beneath the frame
and lower the vehicle onto the supports, allowing
enough room for axle installation. Ensure that the
vehicle will remain in place during axle installation.
3. Using a suitable jack, hoist or overhead crane and
sling, remove the axle (Fig. 5 -6, 1-Front or 2-Rear)
from its support or holding stand. Balance the axle,
and prevent it from tipping, turning or falling while
positioning it beneath the vehicle. DO NOT raise or
otherwise disturb the vehicle while installing the axle.
Keep the axle supported and balanced on the jack,
hoist or overhead crane and sling throughout the
installation procedure.
4. Install the four hex-head capscrews (Fig. 5-6, 3),
four hex nuts (4), and eight hardened washers (5)
securing the front or rear axle supports to the vehicle
frame. Torque to 600-680 lb/ft (813-922 Nm).
Note: If a new frame sway (front) cylinder bearing
(Fig. 5 -6, 6) has been installed in the axle, the fracture
(Fig. 5 -5, 1) in the bearing race must be positioned at
the 9 o’clock position as shown in Fig. 5-5.
Figure 5- 5 Frame Sway Cylinder Bearing
Installation - Bearing Race Fracture Position
Note: ALWAYS replace elastic-lined nuts with new
elastic-lined nuts to ensure proper fastening.
5. Move the cylinder (Fig. 5 -6, 7) into position on the
axle cylinder anchor (8). Insert a cylinder-mount pin
(9) through the cylinder and cylinder anchor. Secure
the cylinder-mount pin (9) with one hex-head
capscrew (10) and a new hex-locknut (11).
6. Apply multi-purpose grease through the self-tapping
lube fitting (Fig. 5-6, 12) to lubricate the self-align
bearing (6) and the cylinder-mount pin (9).
7. Install the drive shaft assemblies (Fig. 5-6, 13-Front or
14-Rear). (Refer to Section 5.4.7, “Drive Shaft
Installation.”)
8. If reinstalling an axle previously removed from the
vehicle, 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 on the transmission. Align the
driveshaft yoke on the axle in the same plane as the
yoke on the transmission.
9. Install the wheel and tire assemblies. (Refer to
Section 5.5.4, “Installing Wheel and Tire Assembly
Onto Vehicle.”)
10. Carefully remove the jack, hoist or overhead crane
and sling supporting the axle.
11. Carefully raise the vehicle using a suitable jack or
hoist. Remove the supports from beneath the frame
and lower the vehicle to the ground.
12. Remove the blocks from the front and rear of both
tires on the other axle.
1
2
3
4
5
6
7
8
9
10
11
12
MT0820
1