lift-master hmj ユーザーズマニュアル

2

Model MJ: Floor level disconnect for emergency
manual door operation.

Model MH: Floor level chain hoist with electrical interlock
for emergency manual door operation.

Model HMJ: Includes both floor level disconnect systems
described above.

REVERSING EDGE: ...............(Optional) Electric or
pneumatic sensing device attached to the bottom edge
of door.

A REVERSING EDGE IS STRONGLY RECOMMENDED
FOR ALL COMMERCIAL OPERATOR
INSTALLATIONS. REQUIRED WHEN THE 3 BUTTON
CONTROL STATION IS OUT OF SIGHT OF DOOR OR
ANY OTHER CONTROL (AUTOMATIC OR MANUAL) 
IS USED.

TRANSFORMER:.............24Vac

CONTROL STATION: ......NEMA 1 3-button station.

OPEN/CLOSE/STOP

WIRING TYPE:.................C2 (Standard) 

Momentary contact to OPEN & STOP, constant
pressure to CLOSE, open override plus wiring for
sensing device to reverse.  See pages 13 and 14 for
optional control settings and operating modes.

LIMIT ADJUST: ................Linear driven, fully 

adjustable screw type cams. Adjustable to 24 feet.

10.88"

MOUNTING DIMENSIONS
A - Wall Mounting
B - Bracket Mounting (rolling door)

Hand Chain Wheel
present with Model
MH only.

15.78"

6.34"

6.34"

12.69"

7.00"

6.13"

3.63"

9.19"

18.50"

2.91"

7.00"

14.75"

A

A

A

A

HANGING WEIGHT: .........80-110 LBS.

TYPE: .................................Intermittent duty

HORSEPOWER: ................1/2 HP

SPEED:...............................1000 RPM

VOLTAGE: ..........................115V 1 Phase 60Hz, 

230V 1 Phase 50Hz

CURRENT:..........................See motor nameplate

DRIVE REDUCTION:.............Primary: Heavy duty

(4L) V-Belt.   Secondary:  #48 chain/sprocket.  Output:

#48 chain

OUTPUT SHAFT SPEED:.....80 RPM

DOOR SPEED: ......................approx. 9" per sec.

depending on door

BRAKE (Optional): ...............Solenoid actuated disc

brake

BEARINGS: ...........................IronCopper sintered and

oil impregnated. 

HAND CHAIN WHEEL: .........Left or right handing