Lull 644E-42 Operation Manual - Manual (Page 143)

General Maintenance
141 Model 644E Origin 3/04
B. Wheel Lug Nut Torque Check
(First 100 Hours)
1. Wire brush the area around the lug
nuts if necessary. There are separate
lockwashers (1) under the lug nuts
(2). Be sure the lockwashers are
installed under each lug nut.
2. Using the torque sequence (A thru H) shown below, alternately check the
torque of each of the eight lug nuts. The recommended torque should be
430-470 lb-ft (583-637 Nm).
C. Replacing Tires
IMPORTANT! The Standard Tire size and ply rating for this vehicle is: 13.00-24,
12 PLY. Make sure any replacement tire, including optional tires, are of the same
size and ply or star rating. DO NOT use lower PLY or star rated tires on this vehicle.
WARNING:
Mis-matched tire sizes and PLY or star ratings may
compromise vehicle stability and may result in vehicle tipover.
LB-FT (Nm)
OU0150
100
OU0530
A
B
C
E G
H F
D
OU0140
1
2