Isuzu Tilt Slide FYJ2000 Instruction Manual page 413

CAUTION
• Remove rust and dirt from a wheel bolt and nut, lightly lubricate the threads with
engine oil, gear oil or chassis grease and turn the nut on the bolt. If the nut does
not turn smoothly, the threads are defective.
• If the threads are defective, replace both wheel bolt and wheel nut as a set.
• If any wheel bolt is broken, change all the wheel bolts and wheel nuts on the
wheel.
• When using an impact wrench, carefully adjust the air pressure regulator and
select the tightening time. As a final step, tighten to the specified torque using a
torque wrench.
• Clean the disc wheel to remove dirt and rust from its fitting surfaces, hub fitting
surface, wheel-to-wheel mating surface and nut contact face. If you fasten the
wheel nuts without removing dirt and rust, the wheel nuts may later loosen and
the wheel might fall off the vehicle while you are driving. This could be very
dangerous.
• Do not use oils that contain molybdenum disulfide. When tightened to the same
torque, the bolts and nuts coated with these oils produce a grip force much
greater than those coated with other oils. Too large of a grip force could cause
wheel bolts to break.
• Do not coat the disc wheel contact face of the hub with oil or grease. This may
reduce the tightening force and cause the tire to become loose.
• Some impact wrenches available on the market produce a torque higher than
the maximum torque specified for tightening the wheel nuts. If the wheel nuts
are tightened with such an impact wrench, wheel bolts might be broken. Before
using an impact wrench, check that the torque it produces conforms to the
specification.
SERVICE AND MAINTENANCE
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