SENSITIVITY

TM 9-4910-743-14&P

SENSITIVITY:

1.6 ounce inches, equal to 1/5 OZ. weight at 8 inch radius.

Sensitivity is defined as the smallest amount of weight which will cause visible

movement of the balance indicator.

ACCURACY:

2.0 ounce inches, equal to 1/4 OZ. weight at 8 inch radius.

Accuracy is defined as the maximum average weight variation from perfect

balance.

The wheel balancer and ABC wheel weights make up the wheel balancing system.

"ON-OFF" POSITIONS: The balancer head pivots on a hardened ball point

resting on a flat ground seat.

In the "OFF" position the balancer head rests on

the outer rim of the oil basin, not on the pivot point. This permits wheels to

be put on or taken off the balancer and weights to be pounded onto the wheel

while it is still on the balancer without damaging the super-sensitive and

accurate pivot point and seat.

In the "ON" position the head has been raised and is supported on the pivot

point.

With a wheel in position on the head, the balancer now becomes a very

sensitive and accurate weighing device.

To turn the balancer "ON" gently depress the pedal all tile way down with your

foot.

The head and wheel are raised and the balancer is active.

The pedal

stays down and is held in the "ON" position by the weight of the wheel.

c. AUTOMATIC "OFF": When the weight of the wheel is removed from the

balancer, the head and pedal automatically return to "OFF". This protects the

pivot point from damage should anyone drop a wheel onto the balancer.

d. MANUAL "OFF": While the wheel is on the balancer the machine may be

turned "OFF" by raising the pedal to the "OFF" position with your toe. `To

protect the accuracy of your balancer, the machine should be turned "OFF" when

attaching weights to the outside rim of the wheel while the wheel is still on

the balancer.

NOTE

ABC Wheel Weights are required for successful use of the wheel

balancer.

Thinline ABC weights fit all vehicles with 13-, 14- 15-, or 16-inch

rims , except for those vehicles that have a straight-lipped rim on the

outside.

Special ABC weights are designed with a long clip that fits only the

outside straight lip of the rim.

Corresponding thinline and special ABC weights have the same weight

and must be used together on wheels that require special weights: two

special weights on the outside rim and two corresponding thinline

weights on the standard inside rim.