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SECTION 5 - GENERAL SPECIFICATIONS AND OPERATOR MAINTENANCE
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 lug nuts or perma-
nently deforming the mounting holes in the wheels. The
proper procedure for attaching 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.
Figure 5-1. Wheel Lug Nut Tightening Sequence
5-10
3.The tightening of the lug nuts should be done in stages.
Following the recommended sequence, tighten lug nuts
per wheel torque.
Table 5-3. Wheel Torque Chart
1st Stage
20-30 ft lbs
(28 - 42 Nm)
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 opera-
tion.
– JLG Lift –
TORQUE SEQUENCE
2nd Stage
3rd Stage
65-80 ft lbs
105 -120 ft lbs
(91 - 112 Nm)
(142 - 163 Nm)
3121230
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