Tire Replacement; Wheel Replacement; Wheel Installation - JLG 4394RT Operation And Safety Manual

SECTION 5 - GENERAL SPECIFICATIONS AND OPERATOR MAINTENANCE

Tire Replacement

JLG recommends a replacement tire be the same size, ply and
brand as originally installed on the machine. Please refer to
the JLG Parts Manual for the part number of the approved
tires for a particular machine and model. If not using a JLG
approved replacement tire, we recommend 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 application by the tire manufacturer
(Including inflation pressure and maximum tire load).
Unless specifically approved by JLG Industries Inc. do not
replace a foam filled tire assembly with a pneumatic tire.
When selecting and installing a replacement tire, ensure
that all tires are inflated to the pressure recommended by
JLG. Due to size variations between tire brands, both tires
on the same axle should be the same.
5-24

Wheel Replacement

The rims installed on each product model 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 diam-
eter, etc., without written factory recommendations, may
result in an unsafe condition regarding stability.

Wheel Installation

It is extremely important to apply and maintain proper wheel
mounting torque.
WHEEL NUTS MUST BE INSTALLED AND MAINTAINED AT THE PROPER
TORQUE TO PREVENT LOOSE WHEELS, BROKEN STUDS, AND POSSIBLE DAN-
GEROUS SEPARATION OF WHEEL FROM THE AXLE. BE SURE TO USE ONLY THE
NUTS MATCHED TO THE CONE ANGLE OF THE WHEEL.
Tighten the lug nuts to the proper torque to prevent wheels
from coming loose. Use a torque wrench to tighten the fas-
teners. If you do not have a torque wrench, tighten the fasten-
ers with a lug wrench, then immediately have a service
garage or dealer tighten the lug nuts to the proper torque.
Over-tightening will result in breaking the studs or perma-
nently deforming the mounting stud holes in the wheels. The
proper procedure for attaching wheels is as follows:
– JLG Lift – 3121641