Jeep cherokee 2000 Service Manual page 1325

XJ
SERVICE PROCEDURES (Continued)
Fig. 4 Lateral Runout
1 – MOUNTING CONE
2 – SPINDLE SHAFT
3 – WING NUT
4 – PLASTIC CUP
5 – DIAL INDICATOR
6 – WHEEL
7 – DIAL INDICATOR
sequence to the proper torque specification (Fig. 5).
Never use oil or grease on studs or nuts.
Fig. 5 Lug Nut Tightening Pattern
WHEEL REPLACEMENT
Wheels must be replaced if they have:
• Excessive runout
• Bent or dented
• Leak air through welds
• Have damaged bolt holes
Wheel repairs employing hammering, heating, or
welding are not allowed.
Original equipment wheels are available through
your dealer. Replacement wheels from any other
source should be equivalent in:
• Load carrying capacity
• Diameter
• Width
• Offset
• Mounting configuration
Failure to use equivalent replacement wheels may
affect the safety and handling of your vehicle.
Replacement with used wheels is not recommended.
Their service history may have included severe treat-
ment.
TIRE AND WHEEL BALANCE
It is recommended that a two plane service
dynamic balancer be used when a tire and wheel
assembly require balancing. Refer to balancer opera-
tion instructions for proper cone mounting proce-
dures. Typically use front cone mounting method for
steel wheels. For aluminum wheel use back cone
mounting method without cone spring.
NOTE: Static should be used only when a two
plane balancer is not available.
NOTE: Cast aluminum and forged aluminum wheels
require coated balance weights and special align-
ment equipment.
Wheel balancing can be accomplished with either
on or off vehicle equipment. When using on-vehicle
balancing equipment, remove the opposite wheel/tire.
Off-vehicle balancing is recommended.
For static balancing, find location of heavy spot
causing the imbalance. Counter balance wheel
directly opposite the heavy spot. Determine weight
required to counter balance the area of imbalance.
Place half of this weight on the inner rim flange and
the other half on the outer rim flange (Fig. 6).
For dynamic balancing, the balancing equipment is
designed to locate the amount of weight to be applied
to both the inner and outer rim flange (Fig. 7).
TIRES AND WHEELS 22 - 9