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(5) CHECK THE OPERATION OF THE MOTOR:
(a) Turn the power on.
(b) Activate the door actuator, verify that the motor is
turning in the correct direction.
The open relay "O" should light during the opening cycle
and the close relay "C" should light during the close
cycle. If they are opposite, the leads (M1 and M2) to
the motor may be switched and the motor rotation will
reverse.
(6) SETTING ELECTRIC CLUTCH RESISTANCE:
(a) Turn the Clutch Controller in a Clockwise
Direction to approximately 50%.
(b) Stand clear of door and pushed open actuator
button. Does the door begin the move without the clutch
slipping?
• If yes, then attempt to stop the door by applying
a pressure to the lead edge of the moving door once
the door has reached approximately the middle of the
opening. The clutch should begin to slip at and applied
pressure of approximately 25 lbs. Adjust the PS90
clutch controller accordingly.
• If no, then increase clutch torque clockwise on
the Clutch Controller until the door begins to move. For
each adjustment be sure to stand clear of the door.
(7) Reset the run and creep speed pots in the control
box to a combined equivalent speed ASP as fied in the
A. GENERAL
Very little maintenance is required on the 1502.
1. Periodically check for wear on the pivot points of the
arms.
2. Operators using the push arm assembly, should
have the two (2) zerk fittings greased once a year
depending on use.
3. Check electric clutch for proper function once a
month depending upon use. Fine tune though
electric clutch torque setting per installation manual
(Refer to step 6, Setting Electric Clutch Resistance).
4. Verify limit switches are set correctly. Periodically
check limit switches for proper adjustment.
Crown Industrial Operators • 213 Michelle Ct. • So. San Francisco, Ca 94080-6202
G-1001
3. MAINTENANCE
Phone: (650) 952-5150 • Fax: (650) 873-1495
www.crown-industrial.com Email: autodor@crown-industrial.com
table on Safe Swinging Power Door Operating Speeds
(table on page 4). Be sure speeds are set for smooth
and safe operation of the door.
(8) Fine tune limit switches by repeating step 2 parts A
through D.
(9) SETTING RUN TIMER: (refer to electric schematic)
The run timer is an equipment safety feature which shuts
off the electric motor. Set the run timer to shut off 10
seconds after a complete for close or open cycle.
(a) With the door and the full open position, depress
the actuator switch to signal operator to close the door.
(b) Allow door to fully close while watching the run
timer indicator light (Reference electrical schematic).
The run timer light should stay on approximately 10
seconds after the door has reached the full closed
position. If the run timer light is lit for more than or
less than this 10 second integral, adjust the run timer
pot accordingly. Turning the run timer clockwise will
increase the length of time. Turning the run timer
counterclockwise will decrease the length of time.
(10) OPTIONAL: Partial Open Feature
(a) Close the door to the full close position.
(b) Actuate partial open actuator, the door should
open approximately half-way and shut off. Turn the
partial open timer clockwise to increase the open width.
Turn the partial open timer counterclockwise to decrease
the open width (Refer to electrical schematic).
5
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