HENNESSY INDUSTRIES COATS 1025, Руководство по обслуживанию и руководство по устранению неполадок

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Service Manual — COATS Models 950/950 ProRacer/1025/1050/1055 • 3
Preliminary Inspection
1. Check the power supply to the balancer. See the
procedure on page 6.
2. The Balancer should sit on all three (3) legs. Make
sure the legs have not filled with dirt, wheel weights,
or other foreign matter that may prevent a leg from
making contact with the floor.
3. The floor should be a solid flat surface that does
not allow the balancer legs to set into a recess in the
floor or sink into the floor itself.
4. Check the operation of the cooling fan on the drive
motor. The fan should run as soon as the balancer is
powered. If the fan fails to run check the 1A breaker on
the rear of the machine to see if it has tripped. If it has
tripped, reset it. If it will not reset, see FAN MOTOR
DOES NOT RUN.
5. Inspect cones, hub nut, pressure cup(s) , and
threaded stud for damage. Missing cones or acces-
sories should be replaced.
Functional Checks
Operational Check
1. Turn the power switch ON. The display should read
as follows;
A, W, D - _0.0
Weight Display - _.00
Mode - Dynamic
Operator - A (Model 1050 only)
Grams/Ounces - Last Selection
If the display fails to light, see DISPLAY DOES NOT
LIGHT.
2. Mount your test wheel (described in EQUIPMENT
NEEDED. on the balancer.
3. Enter the wheel parameter data.
Note: If this is a Model 950 and the machine
will not accept keypad entries, replace the
keypad. If this does not correct the problem
replace the PCB and put the original keypad
back in.
Note: If this is a Model 1025,1050 or 1055
and you do not get proper wheel parame-
ters from the A & D Arm, see A & D ARM
PROBLEMS.
4. If the balancer is in round off mode, press and hold
the SHIFT key and press ROUND OFF to enter the non-
round off mode.
5. If the balancer is in gram mode, press and hold the
SHIFT key and press GM/OZ key combination to set
the balancer to read in ounces.
6. Install a 4 oz. weight on the outer rim of the test
wheel.
7. Choose the DYNAMIC balancing mode.
8. Lower the guard hood.
9. Push the START button. The machine should now
cycle. If the machine does not cycle, see BALANCER
DOES NOT CYCLE.
10. The balancer should come up to speed, coast for
several revolutions, and then brake to a stop. If the
machine fails to brake and continues to coast, see BAL-
ANCER DOES NOT BRAKE.
11. The balancer should now have weight values and
position lights displayed.
12. Position the wheel so the display for the center
position LED for the outside (right) plane is flashing.
13. Note the position of the 4 oz. weight and the
weight readings for both planes.
14. Perform five (5) spin cycles and note the posi-
tions and weight readings after each spin cycle. The
weight readings should repeat within .2 oz and the
position within ± 1/2 inch. If they do not, see REPEATA-
BILITY PROBLEMS.
Note: If the customer had problems with a
specific wheel assembly only, make sure
there is no water or debris inside the tire.
Accuracy Check (Plane Separation)
1. Remove the 4 oz. weight from the wheel.
2. Fine balance the test wheel to obtain 0.00 (+0.02)
weight readings on both displays. It may be necessary
to use modeling clay to counter balance small imbal-
ances.
3. Place a 4 oz. weight on the outside of the wheel.
4. Press start. The readings for this cycle should be as
follows:
Inner (Left) Plane = 0.00 + 0.20 oz.
Outer (Right) Plane = 4.00 + 0.10 oz.
Outer Position flashing= 4oz. at bottom-dead-center
± 1/2 inch
5. Move the 4 oz. weight to the inside plane. Press
start. The reading should be as follows;
Inner (Left) Plane = 4.00 ± 0.10 oz.
Outer (Right) Plane = 0.00 ± 0.20 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 and perform the A & D ARM CAL-
IBRATION and the WEIGHT SENSOR CALIBRATION.
Direct Drive