BULLETIN 1166
9/4/2015
Page 13 of 20
MANUAL OPENING
During a power failure the “ROPE GRIPPER™” will activate. When power is restored the
“ROPE GRIPPER™” will automatically reload and put the elevator back into service.
If the car is to be moved during a power outage, manually open the “ROPE GRIPPER™” as
follows:
1.
First confirm the OMS lever is on
Manual
Reset
. (Follow the procedure of "LINING
REPLACEMENT or SHIM ADJUSTMENT" #2 on page 7)
2.
Make sure machine brake is functioning properly (prevents any car movement). Use an
8mm socket wrench (not provided) to turn either one of the hex shafts in the designated
direction until the brake is loosened on the ropes and the car is free to move (see Figure
7). IMPORTANT: Use wrench to open gripper only as far as is necessary to allow car
movement. Opening further may damage the gripper.
3.
To manually close the gripper, simply push the spring plunger and turn the OMS lever to
Manual
Reset
. This should close the gripper.
WARNING
: Keep hands clear of the
closing the Rope Gripper. Forces created can crush fingers.
TEST PROCEDURE FOR COMPLIANCE WITH
CANADIAN CAN/CSA B44 AND ASME A17.1-2000, & EN81
SAFETY CODE FOR ELEVATORS
1) POWER INTERRUPTION TEST
Run the car in slow speed and turn the OMS lever to
Reset Release
. This will activate the
“ROPE GRIPPER™” causing it to clamp the ropes and stop the car. When the “ROPE
GRIPPER™” is activated, the “ELEVATOR CAN RUN” contacts will open and signal the
controls to interrupt power to the driving motor and machine brake.
2) ASCENDING CAR OVERSPEED TEST
With an empty car, overspeed the car in the “UP” direction while keeping the machine brake
open. The Governor overspeed switch will activate the “ROPE GRIPPER™”. The “ROPE
GRIPPER™” will stop the car before the counterweight strikes the buffer or, at least, reduce
the car speed to the speed for which the buffer is designed. If it is impractical to overspeed
the car, run the empty car up at high speed with the machine brake held open and manually
trip the Governor overspeed switch. The “ROPE GRIPPER™” will cause the car to slow
down and stop. The Governor can then be tested to make sure the Governor switch opens at
the correct overspeed setting.
3) UNCONTROLLED LOW SPEED TEST
CAUTION:
DO NOT ALLOW ANYONE TO ENTER
THE ELEVATOR DURING THIS TEST!!!
With the car level at any floor and the door open, open the machine brake. (With empty car
the elevator moves up, with full load the elevator moves down.) The “ROPE GRIPPER™”
should apply and stop the car within 1220 mm (48"). If the car does not move when the
machine brake is opened, the brake drum or disc can be turned to start the car.
Note: this test can also be performed more safely with the doors closed, and the door
lock circuit opened to simulate an open door.