7059 Manual – P9 – Alemite Strobe Light Wheel Balancer

KINETIC BALANCING  (UP & DOWN VIBRATIONS) OF REAR WHEELS ON TRUCKS

Rear wheels are balanced kinetically only.

SINGLE AXLE:

  1. Raise rear wheels in the following manner.

Single axle equipped with single or dual rear wheels — Place jack under center of rear axle and raise both rear wheels approximately 3 inches off of ground.

Heavy single axle vehicles equipped with dual rear wheels — Place jack under frame and raise frame until rear wheels clear floor. Block up the frame with horses and remove the jack. Place the jack under the center of the rear wheels through approximately 1/2 of the spring travel.

Tandem axle trucks — See section entitled “Tandem (Two) Rear Axles” on this page.

  1. Lock wheels which are not being balanced by tightening up thoroughly on the brake adjustment. The wheels must be securely locked.
  2. Block front wheels.
  3. Remove all wheel weights. Remove all stones from tire tread.
  4. Wheels should revolve freely. Tap brake backing plate with weight pliers to free wheel if necessary.
  5. Position pick-up under axle and close to the wheel. The flat plate under the spring is a good location.
  6. Balance rear wheels (kinetically) in the same manner as outlined for front wheels in paragraphs 7 to 14 on pages 4, 5, and 6.

NOTE:
The balancing procedure will require an assistant in the cab to operate the engine in order to spin the rear wheels. The instructions for the assistant are as follows:

Instructions to Assistant

Start the engine and put the truck into high gear. Release the clutch pedal slowly to prevent lurching. Rev up the wheels slowly.

Watch the speedometer. Do not run the vehicle over one-half of the top road speed of the truck. (Since one wheel is locked, the free wheel will run at twice the speed indicated on the speedometer.)

At the signal from the man doing the balancing, apply the brakes slowly and put the truck into neutral.

Remain in the cab during balancing so as not to affect the adjustment of pick-up.

NOTE: Do not apply weights between the two wheels of a dual set. Do not dismount duals. Balance as a running set.

TANDEM (TWO) REAR AXLES

  1. Raise rear wheels in following manner: Place the jack under the frame and raise frame until rear wheels clear floor. Block up the frame with horses and remove the jack. Place the jack under the center of the rear wheels through approximately 1/2 of the spring travel.