COATS 6401 Computer Truck Wheel Balancer - Manual (Page 23)

COATS 6401 Truck Wheel Balancer • 17
Maintenance and
Calibration
Preventative Maintenance
The balancer requires only minor maintenance to
keep the unit operating properly.
NEVER use compressed air or a water hose
to clean any part of your balancer.
1. Keep the display clean and clear. Use a vaporizing
cleaner only. Do not use cleaners or solvents, which
leave oily or filmy residues behind.
2. Keep the adapters, cones, faceplate, threaded
arbor, pressure cup, and hub nut clean. Grease and
dirt buildup will cause premature wear and inaccurate
balancing. Clean at least once a day with a vaporizing
solvent.
3. Clean the weight tray, accessory post, and pegs.
Weights stored in a dirty tray will pick up grease and
dirt which may alter their weight or keep them from
securely attaching to the wheel. Use a vaporizing sol-
vent to clean the tray, pegs, and post.
4. Keep the area around the balancer clear. Remove
any tools or other items that are leaning against the
balancer. Keep the area under the balancer clear as
well. Remove any items that may cause the balancer
to not sit level.
5. Use only COATS accessories. Accessories from
other manufactures may not fit or function properly,
and may damage the balancer.
Calibration
The balancer utilizes a “self calibration” scheme. To
keep your balancer in proper calibration, this calibra-
tion procedure should be performed once a month, or
whenever the accuracy of the balancer is questioned.
1. Mount a 16 or 16.5 light truck tire/wheel assem-
bly on the balancer.
2. Enter A, W, and D wheel measurements.
Note: Make sure the balancer is in NON ROUNDOFF
mode (SHIFT 6).
3. Remove any weights attached to the wheel. The
balancer will read CAL 0.
4. Press and hold SHIFT and press 1.
5. Lower the hood and press START.
6. Raise the hood, rotate the wheel until the outer
weight positioning LED flashes, and attach an 8 ounce
weight (227 grams) at top-dead-center.
Note: It is critical that this weight be placed accu-
rately to achieve proper calibration.
7. Lower the hood and press START.
8. Raise the hood and remove the weight.
The balancer is now calibrated. If a mistake is made
during this procedure, turn the balancer off, then back
on, and start the procedure over again.
CAUTION
Direct Drive