HENNESSY INDUSTRIES Coats IBS 2000, Service Manual And Troubleshooting Manual

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Service Manual — COATS Model IBS 2000 • 7
10. Position the wheel so the display for the center
position LED on the outside (right) plane is flashing.
11. Place a 4 oz. weight at the 12 o'clock position on
the outside (right) of the wheel.
Note: If a weight is already in this position,
place the 4 oz. weight as close to the indi-
cated location as possible. Rotate it to the
12 o'clock position, and then press the Star
(*) key.
12. Push the START button, or lower the hood. The
balancer should now cycle and come to a stop.
13. The outer (right) weight display should read 4.00
± .02 oz. and the center position LED for the outside
(right) plane should be flashing when the weight is at
bottom dead center. The display will now read CALI-
BRATION COMPLETE! PRESS ANY KEY TO CON-
TINUE.
14. Perform PLANE SEPARATION, if specified results
are achieved calibration is complete. If specified results
are not achieved , OPTIMIZE THE A.
15. Make sure to write down the new A value to use
in the ARM CALIBRATION procedure. Center position
LED for the outside (right) plane should be flashing
when the weight is at bottom dead center. The display
will now read CALIBRATION COMPLETE! PRESS ANY
KEY TO CONTINUE.
Plane Separation (Accuracy Check)
1. Remove the 4 oz. weight from the wheel.
2. Use putty to fine balance the test wheel to obtain
0.00 (+0.02) weight readings on both planes. If unable
to balance to zero See REPEATABILITY PROBLEMS.
Note: If the customer balances mostly larger
wheels you may use a larger wheel for cali-
bration.
3. Place a 4 oz. weight on the outside of the wheel.
4. Press start, or lower the guard hood. The readings
for this cycle should be as follows:
Inner (Left) Plane = 0.00 ± 0.15 oz.
Outer (Right) Plane = 4.00 ± 0.15 oz.
Outer Position flashing = 4oz. at bottom dead center
± 1/2inch
5. Move the 4 oz. weight directly across to the inside
plane. Press start, the reading should be as follows:
Inner (Left) Plane = 4.00 ± 0.15 oz.
Outer (Right) Plane = 0.00 ± 0.15 oz.
Inner Position flashing = 4oz. at bottom dead center
± 1/2 inch
6. If the above results are not achieved check the A,
W, and, D dimensions. The ARM must be OPTIMIZED.
Perform the ARM CALIBRATION.
7. If the above results are still not achieved, check the
placement of the distance tape, see OPTIMIZING
A(Distance Tape Placement).
8. If specified results are not achieved see ACCU-
RACY PROBLEMS.
Optimizing A (Distance Gauge Tape
Placement)
Note: Perform this procedure if the PLANE
SEPARATION (Accuracy Check) fails.
1. Place a 4oz. wt. on the inside of the wheel, try
entering an A dimension .1 higher than the one used
originally. Spin the wheel. If the plane separation gets
worse, try using an A dimension .1 lower than the one
used originally.
2. If the plane separation gets better, keep increasing
or decreasing the A dimension until an acceptable
value is achieved.
3. Calibrate the machine and perform the PLANE
SEPARATION CHECK. Repeat this procedure until the
outer plane weight reading is at a minimum.
4. Once the A is Optimized and the distance tape
moved, you must perform ARM CALIBRATION and
BALANCER CALIBRATION with the new A value. Also
recheck the PLANE SEPARATION.
5. Move the distance tape to this position to allow for
proper A dimension entry.
Arm Calibration
1. Go to the menu and select CALIBRATION, select
CALIBRATE ARM. Follow the instructions on the dis-
play. The A & D pot readings are displayed on the LCD
display. With the arm in the HOME position, the read-
ings should be within the tolerance brackets.
If not, the potentiometers should be adjusted. Refer
to the A & D Arm Repair Procedures.
2. Place the arm in the home position (see decal on
the motor). Follow the instructions on the display
screen.
3. The A value is obtained by moving the distance arm
out to the rim, and manually entering the new A value
obtained from the PLANE SEPARATION and A OPTI-
MIZATION.
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