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NE W! Cube Style Electrical Box F A C T O R Y S E T OWNER'S MANUAL C2 Wiring See page 8 MODELS: for other wiring configurations INDUSTRIAL DUTY DOOR OPERATOR NOT FOR RESIDENTIAL USE 2 YEAR WARRANTY 41B6 Serial # (located on electrical box cover) Installation Date...
Secondary: #48 chain/sprocket Output: #50 chain Model J: Floor level disconnect for emergency manual door operation. OUTPUT SHAFT SPEED:..36 R.P.M. Model H: Floor level chain hoist with electrical interlock DOOR SPEED: ......6 - 7” per sec. for emergency manual door operation. depending on door Model HJ: Includes both floor level disconnect BRAKE: (Optional) ....Solenoid actuated disc...
OPERATOR PREPARATION Both J and H series operators have dual output shafts and may be mounted on either the right (standard) or left side of door, and in either a vertical (standard) or horizontal mounting position. If you need to move the drive sprocket, loosen BOTH set screws, remove the sprocket and key, and place on the opposite side of the drive shaft.
OPERATOR MOUNTING Before your operator is installed, be sure the door has been properly aligned and is working smoothly. The oper- ator may be wall mounted or mounted on a bracket or shelf. If necessary, refer to the operator preparations on page 3.
7. Install Hand Chain (Models H and HJ only) 8. Mount Chain Keeper / Keyhole Bracket Place hand chain around hand chain wheel. Be Using suitable hardware mount the chain keeper sure to pass it through both openings in the chain approximately 4 feet above the floor, near the free guide.
If your door does not have a bottom sensing edge or safety photo eyes and you wish to add a safety device to WIRING: your application, please contact your local LiftMaster Authorized Dealer. For wiring of your sensing device to the operator, refer to the wiring diagram supplied with your opera- tor.
POWER WIRING CONNECTIONS Remove the cover from the electrical enclosure. Inside this enclosure you will find the wiring diagram(s) for your unit. Refer to the diagram (glued on the inside of the cover) for all connections described below. If this diagram is missing, call the number on the back of this manual. DO NOT INSTALL ANY WIRING OR ATTEMPT TO RUN THIS OPERATOR WITHOUT CONSULTING THE WIRING DIAGRAM.
CONTROL WIRING DETERMINE WIRING TYPE Refer to the wiring diagram located on the inside cover the electrical box to determine the type of control wiring. Standard C2 or B2 Wiring SPECIAL CONTROL Standard operators are shipped from the factory with WIRING D WIRING DATA jumper set for C2 wiring, which requires constant...
CONTROL WIRING (con’t) Radio Controls WARNING On all models with type B2 control wiring, a terminal bracket marked R1 R2 R3 is located on the outside of the electrical enclosure. All standard radio control DO NOT USE RADIO CONTROLS WITH YOUR receivers (single channel residential type) may be OPERATOR UNLESS YOU HAVE INSTALLED SOME TYPE OF ENTRAPMENT PROTECTION...
TEST THE SYSTEM Turn on power. Test all controls and safety devices to WARNING make sure they are working properly. It will be neces- sary to refer back to page 6 for fine adjustment of the limit switches. DO NOT PLACE HANDS OR TOOLS IN OR NEAR THE OPERATOR WHEN THE POWER IS ON OR IMPORTANT NOTES: WHEN...
MAINTENANCE SCHEDULE Check at the intervals listed in the following chart. EVERY EVERY EVERY ITEM PROCEDURE 3 MONTHS 6 MONTHS 12 MONTHS Drive Chain Check for excessive slack. Check & adjust as required. Lubricate.* Sprockets Check set screw tightness Clutch Check &...
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SINGLE PHASE SCHEMATIC DIAGRAM 1742-1 1742-1 BL/BK BL/BK BL/BK BL/BK 115 VOLT - 1 PHASE 230 VOLT - 1 PHASE MOTOR CONNECTION MOTOR CONNECTION (YE) (BK) OVERLOAD 1 PHASE (BK) (BL) POWER IN TO MOTOR (BK) (PUR) (BK) (SEE NOTE #1) 230V MODELS (GY) 115V MODELS...
SINGLE PHASE WIRING DIAGRAM 1742-1 TO TERMINAL #2 ORANGE PURPLE PURPLE RADIO YELLOW TIMER RECEIVER PURPLE TO TERMINAL #3 AUX.TERMINAL ( OPTIONAL ) BLOCK FOR RADIO YELLOW GREY PURPLE GREY SAFETY AUX.OPEN ORANGE OPEN CLOSE LIMIT SWITCHES LIMIT SWITCHES CLOSE OPEN ORANGE PURPLE...
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THREE PHASE SCHEMATIC DIAGRAM 1742-3 BL/BK BL/BK BL/BK BL/BK BL/BK BL/BK - SEE NOTE #2 575 VOLT - 3 PHASE 230 VOLT - 3 PHASE 460 VOLT - 3 PHASE MOTOR CONNECTION MOTOR CONNECTION MOTOR CONNECTION OVERLOAD (SEE NOTE #2) (GY) (BK) 3 PHASE...
THREE PHASE WIRING DIAGRAM 1742-3 TO TERMINAL #2 ORANGE PURPLE RADIO TIMER YELLOW ( OPTIONAL ) RECEIVER PURPLE TO TERMINAL #3 AUX.TERMINAL BLOCK FOR RADIO YELLOW GREY PURPLE GREY SAFETY AUX.OPEN ORANGE OPEN CLOSE LIMIT SWITCHES LIMIT SWITCHES CLOSE OPEN ORANGE PURPLE ORANGE...
Nut Plate K75-12560 Disconnect Assy Kit, Left Hand 10-12806 Backup Plate Model J and Right Hand Model H to use right hand assembly, Left hand Model H to 18-10036 Spring, Depress Plate assemblies use left hand assy, Model HJ requires both...
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REPLACEMENT PARTS LIST – MODEL Refer to the parts lists below for replacement kits available for your operator. If optional modifications and/or accessories are included with your operator, certain components may be added or remove from these lists. Individual components of each kit may not be available. Please consult a parts and service representative regard- ing availability of individual components.
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REPLACEMENT PARTS LIST - MODEL Refer to the parts lists below for replacement kits available for your operator. If optional modifications and/or acces- sories are included with your operator, certain components may be added or remove from these lists. Individual components of each kit may not be available.
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REPLACEMENT PARTS LIST – MODEL Refer to the parts lists below for replacement kits available for your operator. If optional modifications and/or accessories are included with your operator, certain components may be added or remove from these lists. Individual components of each kit may not be available. Please consult a parts and service representative regard- ing availability of individual components.
CONTROL CONNECTION DIAGRAM IMPORTANT NOTES: ATTENTION ELECTRICIAN: 1) The 3-Button Control Station provided must be connected for operation. USE 16 GAUGE OR HEAVIER WIRE 2) If a STOP button is not used, a jumper must be placed between termianls 3 and 4. FOR ALL CONTROL CIRCUIT WIRING.