Driving & Safety --- Section 2
Cayman 2005
71
WHEEL MOUNTING
Hub Piloted Mounting:
• Before using flange nuts that have already been used in service, apply
two drops of oil at one point between the flange and hex. This will allow
parts to rotate freely and provide the proper clamping force when tight-
ened. Use any common lubricant typically used for fasteners. Examples
are motor oil and general purpose lubricating oils. Excessive lubricant is
not desirable, and will not improve nut torquing performance.
Excessive lubricant makes the nuts hard to handle, attracts dirt, and
may cause unsightly appearance to the wheel. Only used nuts require
lubrication.
• Flange nuts generate higher clamping force. Always use grade eight
studs with hub mount wheels.
• Before installing the wheels, lubricate the hub pilot pads with a drop of
oil to prevent galling. Do not lubricate any other wheel or hub sur-
face.
• For a hub with intermittent pilot pads, position a pad at the twelve
o’clock position to center the wheel and reduce runout.
NOTE:
Loosen and tighten lug nuts in a star pattern sequence.
Sequence tighten to 50 ft. lbs. first, then sequence tighten to
450 lbs. Over-tightening can cause distortion.
W
ARNING:
Never use wheels or lug nuts different than the original
equipment as this could damage the wheel or the mounting
system. Damage to the wheel or mounting system could cause a
wheel to come off while the motorhome is in motion.
Flange Nut:
Front and side view.
090268c
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