OPERATION AND ADJUSTMENT INSTRUCTIONS
18
Following installation, the operator MUST be tested and
respond correctly to all controls as specified on the wiring
diagram. KEEP personnel and equipment clear of the area
beneath the door when performing the tests. When testing the
3-button wall station, first observe that each button operates the
door in the direction indicated and that the STOP button
performs that function. With the door stopped at its full open
position, the OPEN button should be inoperative. This should
be verified and, likewise, the CLOSE button should be
inoperative with the door fully closed.
Certain operator control circuits use only a single button or a
two button control station and may be designed to function
differently than the more common three-button circuit
described above. Test the controls in accordance with the
description of operation as indicated on the wiring diagram.
Observe the door when traveling in each direction for
smoothness of operation. Test the setting of the clutch by
restraining the door by hand. The clutch should slip. Re-check
the limit settings. The door should close tightly at the floor
without excessive impact. Likewise, it should fully clear the
door opening without the carrier striking the stops on the rail.
The MS Series operators are equipped with a reversing edge
circuit and to conform with code need to be connected to a
pneumatic edge or foam edge door components. To test it for
proper reversal, place an object beneath the leading edge of the
TESTING
door. The door should stop, pause and reverse when it comes
into contact with the object provided the height of the object
exceeds the cut out point set for the Reversing Cutout Limit
switch (approximately four inches).
CAUTION
DO NOT STAND UNDER DOOR
TO TEST REVERSING EDGE.
USE A STURDY CORRUGATED BOX
OR OTHER SIMILAR OBJECT.
If the operator is equipped with other means of control, such as
additional 3 button stations or radio controls, each of these
should be tested separately for proper operation.
To test the manual disconnect first move the door to the fully
closed position. Then disconnect the power to the operator.
Manual door operation mode should engage when the release
chain is pulled. The door can then be manually opened or
closed by physically moving the door (Model MJ5011S) or
using the hoist chain (Model MH5011S). If it is difficult to
engage and/or the jackshaft to doorshaft chain appears to be
under compression, reset the CLOSE limit slightly to reduce the
door travel in the close direction.
ALWAYS DISCONNECT POWER TO
THE OPERATOR BEFORE SERVICING,
CONNECTING ACCESSORY DEVICES
OR MAKING ADJUSTMENTS.
WARNING
Normally, very little maintenance is required. A monthly visual
inspection must be made for loose or missing hardware and for
excessive slack in the V-Belt and jackshaft chain. The clutch
must be tested periodically and adjustments made if necessary
(see Figure 13, page 14). The brake is adjusted at the factory
and may need periodic adjustment for wear. When adjustment
becomes necessary see
Figure 14
on page 15 for the
adjustment procedure.
Test the reversing edge circuit at least once a month by
permitting the door to contact an obstruction while closing.
CAUTION
DO NOT STAND UNDER DOOR TO TEST REVERSING
EDGE - USE A CORRUGATED BOX
OR OTHER SIMILAR OBJECT
Lubrication of the operator is not required. It is important, for
trouble free service from the operator, that the door be kept free
from binding, properly counter balanced and periodically
lubricated.
An annual inspection of the door by a qualified
overhead door professional is recommended.
Warning: Repairs and adjustments to the door and operator
should be performed only by someone qualified to service
commercial overhead doors and operators.
MAINTENANCE
FAILURE TO TEST REVERSING SYSTEM
COULD RESULT IN DEATH OR SERIOUS
INJURY. TEST THIS SYSTEM ONCE A MONTH.
WARNING
