LiftMaster MJ Support Question
LiftMaster MJ Support Question
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Answer #1: Posted by SonuKumar on December 3rd, 2022 7:06 PM
SonuKumar
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Related LiftMaster MJ Manual Pages
MGJ User's Guide Manual - Page 5
... provisions)
ADVERTENCIA PRECAUCIÓN
Electrical Interlock with a manual hoist. Arm
Lift free end of persons and obstructions. AVERTISSEMENT
TO DISCONNECT DOOR FROM OPENER TO RECONNECT DOOR ARM TO TROLLEY
NOTICE
Emergency
Emergency Disconnect
Door Arm
ATTEEmergNencyTION
Pull emergency Disconnect
release handle
straight down. Release handle. Weak or broken springs or unbalanced...
MGJ User's Guide Manual - Page 6
...
This operator includes two methods of the operator. This chain can be found on the wall. Model MJ/MGJ for manual hoist operation.
AVERTISSEMENT
When operator is used, pull handle to disconnect the door from the door operator. 1. Or if emergency egress device is disconnected by slipping the end through the keyhole bracket...
MGJ User's Guide Manual - Page 8
...ANY COMMANDS
No power
Accessory failure
Possible component failure
OPERATOR MAKES
Operator requires adjustment
NOISE BUT DOOR DOES
NOT MOVE
DOOR DRIFTS AFTER OPERATOR STOPS
Operator or door requires adjustment
DOOR OPENS/CLOSES Operator requires adjustment TOO FAR
DOOR REVERSES UNEXPECTEDLY
Safety device activated
RADIO FUNCTIONALITY
NO RESPONSE
REMOTE CANNOT BE PROGRAMMED POOR RANGE...
MJ5011E QuickStart-2008 Manual - Page 1
...Optimum Distance 12-15"
MODEL MJ This operator has a floor level disconnect chain to disengage operator from the door operator.
b Operate the door in position by the manual ...operation chain, hoist and electrical operation will disable the electrical controls when the hoist is used .
Connect the earth ground to open...
MJ5011E QuickStart-2008 Manual - Page 2
...
Direction Limit Nut Will Move During Travel
SAFETY
CLOSE
Limit Nuts
Retaining Plate
11 Limit Switches
OPEN
9 Power Wiring Knockout
014A1030
J4 C32
TP1 C20
R25
C9
C21
U1
D7
D5
U4 D6... 3 of timer setting. The TTC will go out). 3. QuickStart for the model MJ/MH/MHS door operator Medium Duty Logic
This QuickStart is intended to activate this feature. Because each application...
MJ5011E Installation-2008 Manual - Page 4
...present with model MH only.
7.070" " (17.78 cm)
OPERATOR SPECIFICATIONS
MOTOR
TYPE Limited duty HORSEPOWER 1/2 HP VOLTAGE 115Vac, Single Phase, 60Hz FULL LOAD AMPS...door Max DUTY 12 Cycles per Hour Max
50 Cycles per Day Max DRIVE TRAIN Maintenance Free Bearings FINISH Powder coated, Corrosion Resistant Steel
SAFETY
DISCONNECT: MH Floor level chain hoist for
emergency manual operation. MJ...
MJ5011E Installation-2008 Manual - Page 5
...manufacturer recommends 3' (91.4 cm) of clearance in the door opening, hook the chain off to the side near the top of the door jamb. WARNING
To prevent possible SERIOUS INJURY or DEATH: &#...instructed to do so. • If the door lock needs to remain functional, install an
interlock switch. • ALWAYS call a trained professional door serviceman if door
binds, sticks or is indicated by last ...
MJ5011E Installation-2008 Manual - Page 9
... includes both a floor level disconnect chain to disconnect the door from the door operator and a disconnect chain with pad locking provisions)
B Wrap hand chain around hand chain wheel and through chain guide
(MH AND MHS ONLY)
4' above floor
A Secure keyhole bracket to wall (MJ ONLY)
Keyhole Bracket
4' above floor
Hand Chain
Hand Chain...
MJ5011E Installation-2008 Manual - Page 21
...or the other of the chain keeper mounted on the wall.
Refer to Model MJ instructions for manual operation.
To operate the hoist:
1.
Or if emergency egress device... to operate the door again electrically. The disconnect chain may now be locked in an open door falling rapidly and/or unexpectedly. • NEVER use emergency disconnect ONLY when door is disconnected by ...
MJ5011E Installation-2008 Manual - Page 22
... control wiring. THE WRONG DIRECTION connection reversed
DOOR DRIFTS AFTER OPERATOR STOPS
A) Door not balanced properly
➤ Disconnect trolley assembly and check door for assistance.
B) TTC temporarily disabled
➤ Close and Open the door. NO RESPONSE
REMOTE CANNOT BE LEARNED
A) Remote control is not stuck.
E) Motor overload tripped
➤ Overload is internal within...
MJ5011E Installation-2008 Manual - Page 23
... INTRLK STOP CLOSE OPEN
OPEN CLOSE STOP
Remove Jumper to the operator. (Not a logic board failure.)
DIAGRAM
Brake (Optional)
Blue* Blue*
* If brake is not supplied,
wires are capped separately
Green
Black Black
L2 L1
Capacitor
Yellow Red Yellow Red
Motor
** If interlock is not
used, wires are
capped together.
Door height or speed...
MJ5011E Installation-2008 Manual - Page 26
... assembly Complete with : Clutch shaft, clutch plate, clutch pulley, bearings, belt, washers, spring, castle nut, cotterpin, and push on fastener. MJ
K7
K8
1
K3
K2
K3
K6 K1
K8 K4
K6
2
K4
K3
SERVICE KITS
ITEM K1
K2 K3
K4
K6 K7 K8
PART # ... kit Complete with: Brake hub/pulley, brake release lever assembly, brake solenoid and bracket, springs and cotter pin
Motor, 1/2 hp, 115 Volt.
MJ5011E Installation-2008 Manual - Page 31
...mount, NEMA 1.
For use with EXT-ANT for TO
MJ, MH, and MHS.RING
10-9095
ANTENNA EXT-ANT
OPEN
Medium Duty Angle Mounting Bracket:
CLOSE
Heavy-gauge steel bracket...500'): Recommended for medium duty. ENTRAPMENT PROTECTION DEVICES OPEN
CPS-LN4
OPEN
Commercial ProtectorCLOSSE ystem:
Provides protection on doors up to 30' wide.
OPEN CLOSE
Antenna: External kit for control wiring.
2-...
MJ (BLACK LINE) Manual - Page 1
OWNER'S MANUAL
MODELS:
MJ ✦ MH ✦ HMJ
INDUSTRIAL DUTY DOOR OPERATOR
FACTORY SET
C2 Wiring
See page 8 for other wiring
configurations
2 YEAR WARRANTY
Serial # (located on electrical box cover)
Installation Date Wiring Type
NOT FOR RESIDENTIAL USE
41B6
MJ (BLACK LINE) Manual - Page 2
...MJ: Floor level disconnect for optional control settings and operating modes. Model HMJ: Includes both floor level disconnect systems described above. See pages 13 and 14 for emergency manual door...50Hz
CURRENT See motor nameplate
ELECTRICAL
TRANSFORMER 24Vac
CONTROL STATION: ......NEMA 1 3-button station. OPEN/CLOSE/STOP
WIRING TYPE C2 (Standard) Momentary contact to OPEN & STOP, constant...
MJ (BLACK LINE) Manual - Page 3
...door opening, hook the chain off to the side near the top of order.
The safety and wear of the operator will be determined at the time of the door jamb.
(2) Set Screws
Output Shaft
Key
Drive Sprocket
3 Shaft Support Bracket with Bearing (Not Provided) Door Sprocket
5-1/2" (13.97 cm)
All MJ...frames (Figure 1). If you need to move or adjust doors, door springs, cables, pulleys, brackets ...
MJ (BLACK LINE) Manual - Page 5
... openings in the desired direction by pulling on the wall. Refer to electrically disable the operator controls.
1. WARNING
To prevent possible SERIOUS INJURY from bag and place the end through both a floor level disconnect chain to the appropriate instructions below for Models MJ and HMJ 7. Refer to disconnect the door from door.
2.
Operate the door...
MJ (BLACK LINE) Manual - Page 6
... actuator.
3. Adjust close cycle. After adjustment, release plate and ensure it seats fully in open position with the bottom of the door even with top of door opening . The sensing edge may be installed 12" above the top of the door. LIMIT SWITCH ADJUSTMENT
WARNING WARNING NOTE: Make sure the limit nuts are positioned between...
MJ (BLACK LINE) Manual - Page 7
...earth ground to the chassis ground screw in the wrong direction (open when CLOSE button is missing, call the number on a separate... will find the wiring diagram(s) for your unit. If the door lock needs to the diagram (glued on the inside of the cover) for...and have completed the limit switch adjustment procedure. To change motor rotation, exchange incoming power leads L1 and L2. ON THREE...
MJ (BLACK LINE) Manual - Page 9
... commercial door opener, a...garage door in parallel with type C2 control wiring, a terminal
• ALWAYS keep remote controls out of reach of door if desired.
9
Cotterpin Washer Clutch Pulley However, for ALL installations. This switch must be seen clearly, is recommended. An electric or pneumatic reversing edge can be a normally closed . Any control with connections for OPEN...
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