LiftMaster J door operator - Manual (Page 14)

14
HOIST AND JACKSHAFT
MAXIMUM DOOR AREA (SQ. FT.)
MODELS J, H, AND HJ
SECTIONAL
22 ga.
Steel
Alum.
Doors
24 ga.
22 ga.
Steel
Alum.
Doors
---
285
350
500
625
24 ga.
Steel
Alum.
Grilles
---
Fiberglass
Doors
---
310
400
560
640
---
---
20 ga.
Steel
Wood
Doors
24 ga.
Steel
Insul.
260
320
450
560
20 ga.
18 ga.
Steel
Steel
Grilles
---
---
---
210
280
380
475
---
---
---
---
16 ga.
Steel
Insul.
125
200
250
310 1/3 HP
1/2 HP
3/4 HP
1 HP
ROLLING
16 ga.
Steel
---
16 ga.
Steel
---
20 ga.
Steel
Insul.
175
250
325
400
MODEL GH
SECTIONAL
22 ga.
Steel
Alum.
Doors
24 ga.
22 ga.
Steel
Alum.
Doors
---
300
430
560
---
---
---
24 ga.
Steel
Alum.
Grilles
---
Fiberglass
Doors
---
325
480
650
---
---
---
---
---
20 ga.
Steel
Wood
Doors
24 ga.
Steel
Insul.
275
390
500
680
---
---
20 ga.
18 ga.
Steel
Steel
Grilles
---
---
---
250
340
430
540
640
875
---
---
---
---
16 ga.
Steel
Insul.
175
225
300
375
460
620 1/2 HP
3/4 HP
1 HP
1-1/2 HP
2 HP
3 HP
5 HP
ROLLING
16 ga.
Steel
---
16 ga.
Steel
---
20 ga.
Steel
Insul.
225
275
325
425
560
840
Call for specifications
Operator specifi cations/Maximum door area - Hoist and Jackshaft
MECHANICAL
DRIVE REDUCTION:
Model J, H, and HJ . . . . . . . . Primary: Heavy duty (5L) V-Belt
Secondary: #48 chain/sprocket;
Output: #50 chain
Model GH . . . . . . . . . . . . Primary: 45:1 for 1/2, 3/4 and 1 HP
Worm gear-in-oil bath gear reducer 44:1 for 1-1/2 and 2 HP
42:1 for 3 HP
Output: #50 chain
OUTPUT SHAFT SPEED:
Model J, H and HJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 RPM
Model GH . . . . . . . . . . . . . . . . . . . . 38.3 for 1/2, 3/4 and 1 HP
39.2 for 1-1/2 and 2 HP
41.1 for 3 HP
DOOR SPEED:
Model J, H and HJ . . . . . . . 8-9" per second depending on door
Model GH . . . . . . . . . . . . . 8-9" per second depending on door
BRAKE: . . . . . . . . . . . . . . . . . . . . . Solenoid actuated disc brake
BEARINGS . . . . . . . . . . . . . .Output Shaft: Shielded Ball Bearing
Clutch Shaft: IronCopper sintered and oil impregnated
Models H and HJ ONLY
HAND CHAIN WHEEL: . . . . . . . . . . . . . . . . .Left or right handing
Models H and HJ ONLY
HOIST WHEEL: . . . . . . . Standard mounting on left or right side
OPERATOR SPECIFICATIONS