JLG 534D-10 - Manual (Page 95)

5.11 534D-9, 534D-10 & 544D
Axles, Wheels and Tires
4. Position the axle under the frame, and align the axle
housing with the holes in the frame.
5. Install the pivot pin (6) and replace the shims (7) on
each end of the axle. Install the pivot pin lockbolt and
nut (8).
6. Move the stabilizer cylinder into position on the axle
cylinder anchor. Insert the pin through the cylinder
and cylinder anchor (9). Secure the cylinder-mount
pin with the retaining pin.
7. Uncap and connect the hoses on both drive motors
and on both steer cylinders. Wipe up any spilled oil.
Note: ALWAYS use new o-rings when servicing the
machine.
8. Install new o-rings into the fittings. Lubricate the
o-rings with clean hydraulic oil.
9. Install the wheel and tire assemblies. Refer to
Section 5.6.2, “Installing Wheel and Tire Assembly
onto Machine.”
10. Carefully remove the jack, hoist or overhead crane
and sling supporting the axle.
11. Carefully raise the machine using a suitable jack or
hoist. Remove the supports from beneath the frame
and lower the machine to the ground.
12. Remove the blocks from the front and rear of both
tires on the front axle.
13. Check the hydraulic reservoir oil level.
14. Start the engine. Operate the steering function
several times in both directions. Check for hydraulic
leaks, and tighten or repair as necessary.
5.6 WHEELS AND TIRES
JLG recommends a replacement tire to be the same size,
ply and brand as originally installed. Refer to the
appropriate parts manual for ordering information. If not
using a JLG approved replacement tire, JLG
recommends that replacement tires have the following
characteristics:
• Equal or greater ply/load rating and size of original.
• Tire tread contact width equal or greater than
original.
• Wheel diameter, width and offset dimensions equal
to the original.
• Approved for the application by the tire manufacturer
(including inflation pressure and maximum tire load).
The rims installed have been designed for stability
requirements which consist of track width, tire pressure
and load capacity. Size changes such as rim width,
center piece location, larger or smaller diameter, etc.,
without written factory recommendations, may result in
unsafe condition regarding stability.
Foam filled tires have a positive effect on the weight,
stability and handling characteristics of the machine,
especially under load. JLG does not recommend the use
of hydrofill as a tire-fill substance because of possible
environmental impact.
Large-bore valve stems are used to help expedite tire
inflation and deflation. An inner tube may be used if a tire
does not provide an airtight seal. Check tire inflation
pressures when the tires are cold. When mounting a tire
on the wheel, the tire must be mounted on the wheel
respective of the directional tread pattern of the tire; this
produces a left or right tire and wheel assembly.
The wheel and tire assemblies must be installed with the
directional tread pattern “arrows” (4) facing in the
direction of forward travel.
MX0660
9
6
7
6
8
WARNING
Mismatched tire sizes, ply ratings or mixing of tire
types (radial tires with bias-ply tires) may compromise
machine stability and may cause machine to tip over.