Wheels And Tires; Emergency Tire Inflation System - JLG sky trak mmv Service Manual

General Information, Specifications and Maintenance
2.13.15

Wheels and Tires

a. Tire Pressure Check
10
MS21402
DANGER:
can result in vehicle tipover. MAINTAIN proper
tire pressure at all times.
Check all four tires:
1. Remove the valve stem cap.
2. Check tire pressure using a premium-quality gauge.
Proper inflation pressure cannot be determined
visually. Pressure should be: 87 psi (600 kPa).
3. Add air as required. DO NOT overinflate.
4. Replace the valve stem cap.
b. Wheel Lug Nut Torque Check
50
OH26702
1. Wire brush the area around the lugs if necessary.
Foreign material such as dirt, concrete, mud, etc.
can prevent an accurate torque reading. There are
separate lockwashers (1) under the lug nuts (2). Be
sure the lockwashers are installed under each lug
nut.
2. Use the torque sequence diagram (A thru K), to
alternately check the torque of each of the ten lug
nuts. The recommended torque is 430-470 lb/ft
(583-637 Nm).
2.50
OS0900
LOW TIRE PRESSURE
430-470 (583-637)
OM14002
c. Replacing Tires
WARNING:
and PLY ratings may compromise vehicle sta-
bility and may result in vehicle tipover.
IMPORTANT: The specified size and ply rating for this
vehicle is 15.5R25, L-2, 2 Star. Make sure any replace-
ment tire is of the same size and ply rating. DO NOT use
lower PLY rated tires on this vehicle.
A
E
J
C
G
B
2.13.16

Emergency Tire Inflation System

a. Inspect Air Compressor Intake Filter
10
MS21402
Note: Shorten the maintenance interval if operating in
extremely dusty conditions.
1. Place the vehicle on level ground, ground the
attachment, level the vehicle, place the travel select
lever in (N) NEUTRAL, move the neutral lock lever to
the (N) NEUTRAL LOCK position, engage the
parking brake switch and shut off the engine.
Mis-matched tire sizes
H
D
K
F
OM1580
Model MMV Rev. 12/04
2
1
OM1620