JLG 15/20MSP Operator Manual - Manual (Page 90)

SECTION 5 - GENERAL SPECIFICATIONS AND OPERATOR MAINTENANCE
5-10 – JLG Lift – 3121230
Tighten the lug nuts to the proper torque to prevent wheels from
coming loose. Use a torque wrench to tighten the fasteners. If
you do not have a torque wrench, tighten the fasteners 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 lug nuts or permanently deforming the
mounting holes in the wheels. The proper procedure for attach-
ing wheels is as follows:
1. Start all lug nuts by hand to prevent cross threading. DO
NOT use a lubricant on threads or nuts.
2. Tighten lug nuts in the following sequence.
3. The tightening of the lug nuts should be done in stages.
Following the recommended sequence, tighten lug nuts
per wheel torque.
4. Wheel lug nuts should be torqued after the first 50 hours
of operation and after each wheel removal. Check
torque every 3 months or 150 hours of operation.
Figure 5-1. Wheel Lug Nut Tightening Sequence
Table 5-3. Wheel Torque Chart
TORQUE SEQUENCE
1st Stage 2nd Stage 3rd Stage
20-30 ft lbs
(28 - 42 Nm)
65-80 ft lbs
(91 - 112 Nm)
105 -120 ft lbs
(142 - 163 Nm)