LiftMaster MT5011 Owner's Manual
Serial #
(located on electrical box cover)
Installation Date
Wiring Type
C2 Wiring
FACTORY SET
See page 11 for
other wiring
configurations
2 YEAR WARRANTY
NOT FOR RESIDENTIAL USE
OO WW NN EE RR ’’ SS MM AA NN UU AA LL
MMOODDEELL MMTT
MMEEDDIIUUMM DDUUTTYY DDOOOORR OOPPEERRAATTOORR
Visit www.LiftMaster.com to locate a professional installing dealer in your area.
INTENDED FOR PROFESSIONAL INSTALLATION ONLY
A SAFETY DEVICE IS HIGHLY RECOMMENDED
2
TABLE OF CONTENTS
SPECIFICATIONS
Operator Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Operator Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
PREPARATION
Track Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Powerhead Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Trolley Carriage/Chain Attachment . . . . . . . . . . . . . . . . . . . . . . . .4
INSTALLATION
Mount the Header Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Mount the Operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Hang the Operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Straight Arm Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Entrapment Protection Accessories . . . . . . . . . . . . . . . . . . . . . . .7
ADJUSTMENT
Limit Switch Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Emergency Disconnect System . . . . . . . . . . . . . . . . . . . . . . . . . .8
Brake Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Clutch Adjustment and Auxiliary Reversal System . . . . . . . . . . . .9
POWER WIRING
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
CONTROL STATION WIRING
Determine Wiring Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Special Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Mount Warning Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Radio Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Additional Access Control Equipment . . . . . . . . . . . . . . . . . . . . .12
External Interlock Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
TESTING AND MAINTENANCE
. . . . . . . . . . . . . . . . . . . . .13
DIAGRAMS
Schematic Diagram for MT5011 . . . . . . . . . . . . . . . . . . . . . . . . .14
Wiring Diagram for MT5011 . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Schematic Diagram for BMT5011 . . . . . . . . . . . . . . . . . . . . . . .16
Wiring Diagram for BMT5011 . . . . . . . . . . . . . . . . . . . . . . . . . .17
REPAIR PARTS
Electrical Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-19
Repair Parts Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20-21
OPERATOR NOTES
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .22-23
CONTROL CONNECTION DIAGRAM
. . . . . . . . . . . . . . . .24
When you see these Safety Symbols and Signal Words on the
following pages, they will alert you to the possibility of serious
injury or death if you do not comply with the warnings that
accompany them. The hazard may come from something
mechanical or from electric shock. Read the warnings carefully.
When you see this Signal Word on the following pages, it will
alert you to the possibility of damage to your door and/or the
door operator if you do not comply with the cautionary
statements that accompany it. Read them carefully.
Mechanical
Electrical
WARNINGWARNING
WARNING
WARNINGWARNING
WARNING
CAUTIONCAUTION
WARNING
WARNING
IMPORTANT NOTES:
• BEFORE attempting to install, operate or maintain the operator,
you must read and fully understand this manual and follow all
safety instructions.
• DO NOT attempt installation, repair or service of your
commercial door and gate operator unless you are an
Authorized Service Technician.
3
WEIGHTS AND DIMENSIONS
HANGING WEIGHT:80-110 LBS. (36.29-49.9 kg)
9-1/2"
(24.13 cm)
16-3/16"
(41.12 cm)
4"
(10.16 cm)
12-1/2"
(31.75 cm)
OPERATOR SPECIFICATIONS
SAFETY
DISCONNECT: .............................Quick disconnect door arm for
emergency manual door
operation.
SENSING DEVICE: ......................Accepts photo electric controls
such as CPS, or an electric / pneumatic sensing edge can be
attached to the bottom edge of door.
A sensing device 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.
MOTOR
TYPE: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Intermittent duty
HORSEPOWER: . . . . . . . . . . . . . . . . . . . . . . . . .1/2 Horsepower
SPEED: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1000 RPM
VOLTAGE: . . . . . . . . .115V, 1 Phase, 60Hz 230V, 1 Phase, 50Hz
CURRENT: . . . . . . . . . . . . . . . . . . . . . . . . .See motor nameplate
ELECTRICAL
TRANSFORMER: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24Vac
CONTROL STATION: . . . . . . . . . . .NEMA 1 three button station.
OPEN/CLOSE/STOP
WIRING TYPE: . . . . . . . . . . . . . . . . . . . . .C2 (Factory Shipped)
Momentary contact to OPEN & STOP, constant pressure to
CLOSE, plus wiring for sensing device to reverse. See page 11
for control wiring options.
LIMIT ADJUST: . . . . . . . . . . . . . .Linear driven, fully adjustable
screw type cams.
MECHANICAL
DRIVE REDUCTION: . . . . . . . .Primary: Heavy duty (4L) V-Belt.
Secondary: #48 chain/sprocket. Output: #48 chain
OUTPUT SHAFT SPEED: . . . . . . . . . . . . . . . . . . . . . .108 R.P.M.
DOOR SPEED: . . . . . . . . .Approximately 9" (22.86 cm) per sec.
depending on door
BRAKE (Optional): . . . . . . . . . . . .Solenoid actuated disc brake
BEARINGS: . . . . . . . .IronCopper sintered and oil impregnated.
OPERATOR DIMENSIONS
Door Height Plus 4 feet (1.22 m) (minimum)
Highest Point of Door Travel
4
TROLLEY CARRIAGE / CHAIN ATTACHMENT
1. Attach the take-up bolt to the trolley carriage using
3/8-16" hex nuts and lock washer, as shown below.
2. Using one of the master links, attach the chain to the other
end of the trolley carriage. Reel the chain around the front idler
shaft, over the spacer brackets, back to the drive shaft
sprocket, and then to the take-up bolt on the carriage.
3. Using the other master link, attach the chain to the take-up
bolt and tighten to the desired chain tension.
Chain Tension: With trolley positioned at either end of the track, a
properly adjusted chain will sag about 3" (7.62 cm) at the
mid-point. If necessary, remove links from the chain to achieve
proper adjustment.
TRACK ASSEMBLY
1. Using the 3/8"-16 x 3/4" bolts and flange hex nuts provided,
assemble the operator track by installing and tightening the
track spacer brackets. Position the spacers evenly over the
length of the track. NOTE: The nylon pad on the spacer
bracket should face up.
2. Using (2) 3/8"-16 x 1" bolts and lock washers, install the front
idler assembly to the second set of holes of one end of the
track. Refer to the illustration below.
3. Slide the trolley carriage onto the track so that the take-up bolt
will be toward the operator.
POWERHEAD ATTACHMENT
1. Position the track assembly on the frame of the powerhead so
that the motor side of operator is in back (away from door).
2. Loosely install two 3/8"-16 x 3/4" bolts and nuts in third hole
from the end of the track.
3. Align the track so that the bolts inserted in step 2 line up with
the L-Slots in the frame.
4. Connect the track to the powerhead by fastening two
3/8"-16 x 3/4" bolts and nuts through the frame and the end
holes in track. Tighten all four bolts to secure the track to the
powerhead.
PREPARATION
To prevent possible SERIOUS INJURY or DEATH:
• DO NOT connect electric power until 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 out of balance. An unbalanced door may
not reverse when required.
• NEVER try to loosen, move or adjust doors, door springs,
cables, pulleys, brackets or their hardware, ALL of which are
under extreme tension and can cause SERIOUS personal
INJURY.
• Disable ALL locks and remove ALL ropes connected to door
BEFORE installing and operating door operator to avoid
entanglement.
WARNING
WARNINGWARNING
L-Slot
Spacer Bracket
(Mounted Nylon Pad Side Up)
Trolley Carriage
Take-Up Bolt
Front Idler Assembly
Master Link
Trolley Carriage
Take-Up Bolt
Hex Nut
Hex Nut
Master Link
Roller Chain
Straight Arm
Lockwasher
Trolley Assembly
Reel Chain
Around Idler and
Over Spacer Brackets
5
IMPORTANT NOTE: Before the operator is installed, be sure the door has been properly aligned and is working smoothly. Although
each installation will vary due to particular building characteristics, refer to the following general procedures to install the operator.
MOUNT HEADER BRACKET
The trolley operator is generally mounted over the center of the
door. However, off center mounting may be required due to
interfering structures or location of door stile / top section
support. In such cases, the operator may be mounted up to 24"
(60.96 cm) off center on torsion spring doors. Extension springs
require center mounting.
1. Locate the center of the door and mark a line on the wall
directly above the door. Extend this line up the wall.
2. Determine the highest point of door travel. Slowly raise the
door and observe the action of the top section. When the top
section reaches its highest point, use a level and project a line
from this point to the center line the of the door.
MOUNT OPERATOR
1. Allowing the motor to rest on the floor, raise the front end of
the track assembly to the front header bracket and fasten
using the 3/8" dia. x 6.40" long pivot shaft and cotterpins
provided.
3. Using the projected lines for location, mount a suitable wood
block or length of angle iron to the wall above the door
opening. Refer to the illustration below. This will provide a
mounting pad for the front header bracket of the operator. If
necessary reinforce the wall with suitable mounting brackets
to ensure adequate support of mounting pad. Using suitable
hardware, mount the (U-shaped) front header bracket to the
pad.
Header Bracket Drill Pattern
2. Swing the operator to a horizontal position above the guide
rails and temporarily secure with a suitable rope, chain, or
support from the floor. Now open garage door slowly, being
careful not to dislodge the temporary support. Using the door
as a support, place a level against the rail and shim the
operator until it is horizontal. Make sure that the operator is
aligned with the center line of the door.
Operator Alignment
Using the door as support, shim
operator to a horizontal position.
Guide
Rails
3.5"
(8.89 cm)
1.75"
(4.45 cm)
4" (10.16 cm)
Min.
INSTALLATION
High Rise Point
Projection Line
Vertical Center Line of Door
Header WallCarpenter’s
Level
Door Travel
Projection
High Point
of Travel
Header Bracket
Cotterpins
Pivot Shaft
6
INSTALLATION
To avoid possible SERIOUS INJURY from a falling operator,
fasten it SECURELY to structural supports of the garage.
Concrete anchors MUST be used if installing ANY brackets
into masonry.
WARNINGWARNING
WARNING
HANG THE OPERATOR
1. The illustration below shows a typical method of hanging the
operator from the ceiling. Each installation may vary, but in all
cases side braces should be used for additional strength.
2. For mounting of the support brace(s) to the powerhead. Four
holes (clearance up to 3/8" bolts) are located on each side of
frame.
3. Check to make sure the track is centered over the door (or in
line with the header bracket if the bracket is not centered above
the door).
NOTE: If the operator is longer than 15' (4.57 m) use of a
mid-span support is recommended.
STRAIGHT ARM ATTACHMENT
1. Fully close the door and move the trolley slider to within 2"
(5.08 cm) of the front idler.
2. Latch the straight door arm to the fixed roll pin in the trolley
carriage. Make sure the open side of notch on the arm faces
the doorway.
3. Attach the door bracket to the door arm using the 3/8"-16 x 1"
bolt and nylon locking nut provided. Leave the nut and bolt
loose enough to allow the two pieces to pivot freely.
4. Using 3/8" hardware provided, bolt the curved door arm to the
straight arm, aligning the mounting holes in such a way that
the door bracket pivot bolt will be in line with the top rollers on
the door.
5. Position the door bracket to the center line on the door. Using
suitable hardware, attach the door bracket to the door. Many
installations, except solid wood doors, will require additional
support for the door. Refer to the illustration below.
NOTE: At this time, ensure all bolts and lag screws are properly
secured.
Powerhead Support Brace
Mid-Span
Support Brace
To p
Roller
Curved
Door Arm
Straight Arm
Center Line of Door
Door Bracket
Pivot Bolt
7
ENTRAPMENT PROTECTION ACCESSORIES (OPTIONAL)
SENSING EDGES
All types of sensing edges with an isolated normally open (N.O.)
output are compatible with your operator. This includes
pneumatic and electric edges. If your door does not have a
bottom sensing edge and you wish to purchase one, contact the
supplier of your operator.
If not pre-installed by the door manufacturer, mount the sensing
edge on the door according to the instructions provided with the
edge. The sensing edge may be electrically connected by either
coiled cord or take-up reel. Refer to the steps below.
Important Notes:
a) Proceed with Limit Switch Adjustments before making any
sensing edge wiring connections to operator as described
below.
b) Electrician must hardwire the junction box to the operator
electrical box in accordance with local codes.
TAKE-UP REEL: Take-up reel should be installed 12" (30.48 cm)
above the top of the door.
COIL CORD: Connect operator end of coil cord to junction box
(not provided) fastened to the wall approximately halfway up the
door opening.
INSTALLATION
To reduce the risk of SEVERE INJURY or DEATH, ALWAYS
install reversing sensors when the 3-button control station is
out of sight of door or ANY other control (automatic or manual)
is used. Reversing devices are recommended for ALL
installations.
WARNINGWARNING
WARNING
ADJUSTMENT
To avoid SERIOUS PERSONAL INJURY or DEATH from
electrocution, disconnect electric power BEFORE manually
moving limit nuts.
WARNING
WARNINGWARNING
Sensor for Auxiliary Reversing System
OPEN Limit Switch
Retaining Plate
CLOSE Limit Switch
AUX. OPEN
Limit Switch
SAFETY
(Aux. Close) Limit Switch
LIMIT SWITCH ADJUSTMENT
NOTE: Make sure the limit nuts are positioned between the limit
switches before proceeding with adjustments.
1. Depress retaining plate to allow nut to spin freely. After
adjustment, release plate and move nut back and forth to
ensure it is fully seated in slot.
2. To increase door travel, spin nut away from limit switch. To
decrease door travel, spin limit nut toward limit switch.
3. Adjust open limit nut so that door will stop in open position
with the bottom of the door even with top of door opening.
4. Repeat steps 1 and 2 for close cycle. Adjust close limit nut so
that the limit switch is engaged as door fully seats at the floor.
8
EMERGENCY DISCONNECT SYSTEM
ADJUSTMENT
NO EC
I
T
To prevent possible SERIOUS INJURY or DEATH from a falling
door or arm:
• DO NOT stand under the door arm when pulling the
emergency release.
• If possible, use emergency release handle to disengage trolley
ONLY when door is CLOSED. Weak or broken springs or
unbalanced door could result in an open door falling rapidly
and/or unexpectedly.
• NEVER use emergency release handle unless doorway is clear
of persons and obstructions.
WARNINGWARNING
WARNING
Header
Bracket
Trolley
Track
Chain
Clevis Pin
Emergency
Disconnect
Straight
Door Arm
Assembly
Door
Bracket
Curved
Door Arm
Door
Emergency
Release Handle
Emergency
Disconnect
Emergency
Disconnect
Door Arm
Door Arm
Pull emergency release
handle straight down.
Emergency disconnect
will open.
Lift free end of door arm
to trolley. Pull emergency
handle to allow arm to
engage roll pin. Release
handle. Emergency
disconnect will close.
TO DISCONNECT DOOR FROM OPERATOR
The door should be in the fully closed position if possible. Pull
down on the emergency release handle (so that the trololey
release arm snaps into a vertical position) and lift the door
manually. The lockout feature prevents tthe troley from
reconnecting automatically, andd the door can be raised and
loweredd manually as often as necessary.
TO RECONNECT DOOR ARM TO TROLLEY
Pull the emergency release handle toward the operator at an
angle so that the trolley release arm is horizontal. The trolley will
reconnect on the next UP or DOWN operation, either manually or
by using the door control or remote.
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