Lull 944E-42, Service Manual

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5.19 Model 644E-42/944E-42 Rev. 6/04
Axles, Drive Shafts, Wheels, Tires and Brakes
5.5 WHEELS AND TIRES
Welded 9'' x 24'' steel wheels are used on the Model
644E. Welded 13'' x 25'' steel wheels are used on the
Model 944E.
The specified size and ply rating (star rating for radial
tires) for the 644E is 13.00-24, 12-ply and 15.5-25, 12-ply
for the 944E. Make sure the replacement tire is of the
same size and ply rating (star rating for radial tires) as all
the other tires. A higher ply rating (star rating for radial
tires) can be used, but only when all four tires have the
same ply rating.
In standard configuration, the tires are filled with air only
when the vehicle leaves the factory. There is a foam fill
option available if the use of a tire-filling substance is
desired. Having tires filled has a positive effect on the
weight, stability and handling characteristics of the
vehicle, 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. Proper rim facing is
determined by the air valve facing away from the vehicle.
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” (12 and 13) facing in the
direction of forward travel.
WARNING:
Risk of death or serious
personal injury. Mismatched tire sizes, ply
ratings or mixing of tire types (radial tires with
bias-ply tire) may compromise vehicle stability
and may cause vehicle to tip over.
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