COATS 850 Solid State Wheel Balancer - Manual (Page 15)

COATS 850SS Wheel Balancer • 9
After Balance Vibration Checklist
Drive the vehicle on a smooth road after balancing
the wheels. If vibration is still present, remove the
wheels and re-balance. If a wheel is out of balance,
the cause may be:
1. A weight has come off the wheel. Remove the
weights from the wheel and rebalance. If the balancer
still indicates the wheels are balanced with 0.5 ounce
on both inner and out displays, the problem is not in
the balance of the wheel.
2. Tire pressure may be wrong. Bring all tires up to
the manufacturer's recommended pressure.
3. Radial or lateral runout in the tire or wheel.
Replace the damaged part.
4. Foreign material inside the tire. Demount the tire
and remove the material. Remove the wheel weights
and rebalance the tire and wheel.
5. Imbalanced wheel covers or trim rings. Remove
the covers or rings and test drive. If vibration is gone,
remove the threaded arbor from the balancer face-
plate and use the optional Combi-Adapter to mount
and balance each wheel with the cover or ring
attached.
6. Incorrectly mounted wheel. Remount correctly.
7. Damaged wheel bolt holes. Replace wheel.
8. Worn universal joints. Replace joints.
9. Drive shaft imbalance or damage. Balance, repair,
or replace the shaft.
10. Imbalanced brake rotor(s) or drum(s).
11. Suspension out of alignment. Align the vehicle,
replace damaged or worn parts.
12. Tire slippage on the wheel. Demount the tire
and remount using tire lubricant and inflate to the
proper PSI. Rebalance the tire.
Extended Functional Capability
The balancer will re-evaluate the data it derives from
the spin cycle when one or all of the A, W, or D values
are changed, or when a new balancing mode is
selected. The new weights and positions will be dis-
played without re-spinning the wheel.
If, after the spin cycle has been completed, you dis-
cover that the A, W, or D measurements were entered
incorrectly, simply press the appropriate key (A, W, or
D) and enter the correct number. The weight displays
and positioning will change as required.
If, after the spin cycle has been complete, you
decide to change balancing modes, simply press the
MODE key until the desired mode is selected. The
weight displays and positioning will change as
required.
Gram/Ounce Selection - To change from ounce to
gram, or gram to ounce, press the CODE key, then 0
on the numeric key pad, then 5, and then A. The
appropriate LED will illuminate (OUNCE of GRAM).
The displays continue to function in the same manner
whether ounce or gram is selected.
Direct Drive