LiftMaster LGJ Light-Duty Gear-Reduced Jackshaft Operator for Rolling Grilles and Shutters - Manual (Page 23)

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MOTOR
TYPE: .................................Intermittent Duty
HORSEPOWER: ................MGJ: 1/2Hp 1 or 3 Phase
LGJ: 1/4 Hp 1 Phase
SPEED:...............................MGJ: 1050 RPM
LGJ: 1725 RPM
VOLTAGE: ..........................MGJ: 115, 60HZ, 1Ph
230V, 50 or 60Hz, 3Ph
230V, 60Hz, 1Ph
380V, 50Hz, 3Ph
460V, 60Hz, 3Ph
LGJ: 115V, 60Hz, 1Ph
CURRENT: See motor nameplate
MECHANICAL
DRIVE REDUCTION: .... . . . . . . . . . . . 40:1 Reduction
(Heavy duty wormgear-in-oil-bath speed reducer)
OUTPUT SPROCKET:...........Size #41
DOOR SPEED: . . . . . . . . . . MGJ: 1Ph, 23RPM
3Ph, 39RPM
LGJ: .1Ph, 43RPM
BEARINGS: .................Heavy duty wormgear-in-oil-bath
speed reducer.
SAFETY
DISCONNECT :.......................Floor level disconnect for
emergency manual door operation.
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.
SPECIFICATIONS
ELECTRICAL
T RANSFORMER:.............24VAC
CONTROL STATION: ......NEMA 1 three button station.
OPEN/CLOSE/STOP
WIRING TYPE: MGJ: B2-C2 (Factory Shipped)
LGJ: G2 (Factory Shipped)
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.
7.50”
7.00”
11.00” 9.25”
LGJ WEIGHTS AND DIMENSIONS
HANGING WEIGHT:..........80-110 LBS.
10.50”
11.05”
MOUNTING DIMENSIONS
3.00”
5.50”
4.75”
8.90”
7.90”
1.97”
10.88”
4.50”
2.25”
.98”
1.96”
MOUNTING DIMENSIONS
MGJ WEIGHTS AND DIMENSIONS
HANGING WEIGHT:..........80-110 LBS.
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ILLUSTRATED PARTS – MODEL MGJ
D8
D13
4
5
1
3
D10
D9
D7
D1
D15
D6
D15
D3
D4
D5
D13
D2
D12
D14
D1
1
2