STIRLING SERIES
30
TORQUE SETTINGS
WHEEL NUTS
Wheel nuts should be tightened to correct torque using a torque wrench. Never trust a “rattle gun” as these may over or
under tighten. A quality torque wrench will ensure nuts are tightened correctly. It’s important to remember to check your
wheel nuts at
50km, 100km, and 500km
and periodically thereafter.
The correct torque settings are:
135Nm (100ft-lbs) for 1/2” studs or 190Nm (140 ft-lbs) for 9/16” stud
.
HITCH
The high tensile bolts securing your hitch should be tightened to
180Nm.
These should be checked at 5,000km intervals.
TRAILING ARM PIVOT BOLTS
The pivot bolts are a high tensile steel. The service interval for these bolts is
1,000km
after delivery,
10,000km
under
normal use and
5,000km
for harsh off-road conditions. During travel they should be inspected daily to ensure they have
not rotated or become damaged. Correct torque is
190Nm
1
2
4
5
6
3
IMPORTANT INFORMATION
Wheel nuts must be re-torqued to
135Nm (100ft-lbs)
for 1/2” studs or 190Nm (140 ft-lbs) for 9/16” stud
.
after the first
50km 100km, and 500km
, or after the
wheels have been re-mounted, and then at periodic
intervals. Wheel nuts should be checked DAILY when
on rough or unsealed roads.
Re-torque as per the diagram on the right:
