WHEELS AND TIRES
3F-7
GENERAL BALANCE PROCEDURES
Deposits of mud, etc. must be cleaned from inside of rim.
WARNING:
Stones should be removed from the tread in order to avoid operator injury during spin balancing and
to obtain good balance.
Each tire should be inspected for any damage, then balanced according to equipment manufacturer’s recommen-
dation.
OFF-VEHICLE BALANCING
Most electronic off-vehicle balancers are more accurate than the on-vehicle spin balancers. They are easy to use
and give a dynamic (two plane) balance. Although they do not correct for drum or disc unbalance as does on-ve-
hicle spin blancing, this is overcome by their accuracy, usually to within 1/8 ounce.
ON-VEHICLE BALANCING
On-vehicle balancing methods vary with equipment and tool manufacturers. Be sure to follow each manufacturer’s
instructions during balancing operation.
WARNING:
Wheel spin should be limited to 35 mph (55 km/h) as indicated on speedometer.
This limit is necessary because speedometer only indicates one-half of actual wheel speed when
one drive wheel is spinning and the other drive wheel is stopped.
Unless care is taken in limiting drive wheel spin, spinning wheel can reach excessive speeds. This
can result in possible tire disintegration or differential failure, which could cause serious personal
injury or extensive vehicle damage.
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