Master mechanic Security+ 642-2MM Bedienungsanleitung

Garage Door Opener

Model 642-2MM

1/2 HP

For Residential Use Only

Owner’s Manual

■Please read this manual and the enclosed safety materials carefully!

■Fasten the manual near the garage door after installation.

■The door WILL NOT CLOSE unless the Protector System®is connected and properly

aligned.

■Periodic checks of the opener are required to ensure safe operation.

■The model number label is located on the back of your opener.

Made exclusively for

Master Mechanic

Chicago, IL 60614

Start by reviewing these important safety alert symbols:

Safety alert symbol review............................................2

Safety information, precautions, tools..........................3

Testing your garage door for binding & balance ..........3

Carton inventory ...........................................................4

Hardware inventory.......................................................5

Illustration of sectional door installation .....................6

Illustration of one-piece door installation.....................7

Assembly section - pages 8 – 11

Assemble the rail ........................................................8

Fasten rail to power unit............................................10

Install the trolley.......................................................10

Attach the rail brackets .............................................11

Installation section - pages 12 – 27

Installation safety instructions ..................................11

Determine the header bracket location

Sectional door .........................................................12

One-piece door........................................................13

Install the header bracket..........................................14

Attach the rail to the header bracket.........................15

The Protector System®

safety reversing sensor information .......................16

Install the safety reversing sensor.............................17

Position the opener....................................................19

Hang the opener........................................................20

Install the door control and connect all wires...........21

Electrical requirements .............................................22

Complete the safety reversing sensor installation.....22

Install the lights and lens ..........................................23

Attach the manual release rope and handle...............23

Fasten the door bracket (sectional door)...................24

Fasten the door bracket (one-piece door)..................25

Connect door arm to trolley (sectional door)............26

Connect door arm to trolley (one-piece door)...........27

Adjustment section - pages 28 – 30

Travel limit adjustments............................................28

Force adjustments .....................................................29

Test the Protector System®........................................30

Test the safety reverse system ..................................30

Operation safety instructions ......................................31

Care of your opener ....................................................31

Maintenance schedule.................................................31

Operation of your opener............................................32

Receiver & remote control programming...................33

Having a problem?.............................................34 & 35

Repair parts, rail assembly..........................................36

Repair parts, installation .............................................36

Repair parts, power unit..............................................37

Accessories .................................................................38

Index ...........................................................................39

How to order repair parts............................................40

Warranty......................................................................40

When you see these Safety Symbols on the following pages, they will alert you to the possibility of serious injury

or death if you do not comply with the corresponding instructions. The hazard may come from something

mechanical or from electric shock. Read the instructions carefully.

When you see this Safety Symbol on the following pages, it will alert you to the possibility of damage to your

garage door and/or the garage door opener if you do not comply with the corresponding instructions. Read the

instructions carefully.

This garage door opener is designed and tested to offer safe service provided it is installed, operated, maintained

and tested in strict accordance with the safety instructions contained in this manual.

Mechanical Electrical

WARNING

CAUTIONCAUTION

Contents

Sectional Door

One-Piece Door

Pliers

Wire Cutters

Claw Hammer

Hack Saw

Screwdriver

1/2" & 7/16" Sockets

and Wrench

Drill

Tape Measure

1/2" x 7/16" Box Wrench

Stepladder

Pencil

3/16", 5/16" and

5/32" Drill Bits

Carpenter's

Level

During assembly, installation and adjustment of the opener, instructions will call for tools shown below.

An unbalanced garage door might not reverse when

required and someone under the door could be seriously

injured or killed.

If your garage door binds, sticks or is out of balance, call

for professional garage door service.

Garage doors, door

springs, cables, pulleys, brackets, and their hardware are

under extreme tension and can cause serious injury or

death.

Do not try to loosen, move or adjust them yourself!

Ropes left on a garage door could cause someone to

become entangled and killed.

Remove all ropes connected

to the door before installing and operating the opener.

To avoid damage to the garage door and opener, disable

locks before installing and operating the opener. Use a

wood screw or nail to hold locks in the "open" (unlocked)

position.

Operation at other than 120V 60 Hz will cause opener

malfunction and damage.

WARNING CAUTIONCAUTION

Identify the type and height of your door, any special

conditions that exist, and any additional materials that

may be required. Refer to pages 6 and 7.

Test Your Door for Balance

Before you begin, complete the following test to make

sure your door is balanced, and is not sticking or

binding:

• Lift the door about halfway as shown. Release the door.

It should stay in place, supported entirely by its springs.

• Raise and lower the door to see if there is any binding

or sticking.

Safety Information, Precautions, Tools

Straight Door

Arm Section

Sprocket

Coupling

Remote Control

Transmitter Visor Clip Rail

Assembly

2-Conductor Bell Wire

White & White/Red

Light Lens

Header/Rail

Brackets

Trolley

Rail Support

Braces (4)

Hanging Brackets

SECURITY✚

Multi-Function

Remote Control Transmitter (2)

Multi-Function

Door Control Panel

LOCK

LIGHT

Curved Door

Arm Section

Header Bracket

CEILING MOUNT ONLY

Door Bracket

Safety Labels

and

Literature

(2) Safety Reversing Sensors

(1 Sending Eye and 1 Receiving Eye)

with attached

2-Conductor White & White/Black Bell Wire

Safety Reversing Sensor (2)

Carton Inventory

Your garage door opener is packaged in one carton which contains the power unit and all parts illustrated below. If

anything is missing, carefully check the packing material. Parts may be "stuck" in the foam. KEEP THE FOAM

INTACT (see page 10). Hardware for assembly and installation is shown on page 5.

Hardware

Separate all hardware from the packages in the rail carton and the opener carton and group as shown below, for

the assembly and installation procedures.

Lock Nut

1/4"-20 x 7/16 (12)

Wing Nut

1/4"-20 (2)

Carriage Bolt

1/4"-20x1/2" (2)

1/4" - 20 x 5/8"

Hex Screw (4) Sprocket Coupling Sleeve

Bolt

1/4-20x1-3/4" (8)

NOTICE

Handle

Nut 5/16"-18 (4)

Ring

Fastener (3)

Clevis Pin

5/16"x2-3/4" (1)

Insulated

Staples (30)

Dry Wall Anchors (2)

Clevis Pin

5/16"x1" (1)

Rope

Lock Washer 5/16" (4)

Lag Screw

5/16"-9x1-5/8" (2) Hex Screw

5/16"-18x7/8" (4)

Clevis Pin

5/16"x1-1/4" (1)

Lag Screw

5/16"-18x1-7/8" (2) Screw

6ABx1-1/4" (2) Screw 6-32x1" (2)

Self-Threading Screw

1/4"-14x5/8"

Installation Hardware

Assembly Hardware

Header

Bracket Rail

Bracket

Trolley

Straight

Door

Arm

Manual

Release

Rope & Handle

Door

Bracket

Garage

Door

Curved

Door

Arm

Garage

Door

Spring

Header

Wall

Rail Assembly

Closed Position

Safety Reversing Sensor

Horizontal and vertical reinforcement

is needed for lightweight garage doors

(fiberglass, steel, aluminum, door with glass panels, etc.).

See page 24 for details.

Support bracket &

fastening hardware

is required.

See page 20.

— — — — — — — —

Door Center

Header Wall

Safety

Reversing

Sensor

Floor must be level

across width of door

FINISHED CEILING

Extension Spring

Torsion Spring

Access Door

SECTIONAL Door Installation

Before you begin, survey your garage area to see whether any of the conditions below apply to your

installation.You may find it helpful to refer back to this page as you proceed with the installation of your opener.

Based on your particular requirements, there are several

installation steps which might call for materials and/or

hardware not included in the carton.

• Step 1, page 12 – Look at the wall or ceiling above the

garage door. The header bracket must be securely

fastened to structural supports.

• Safety reversing sensor, page 16 – Depending upon

garage construction, extension brackets (see

Accessories) or wood blocks may be needed to fasten

sensors to mounting locations.

• Step 4, page 17 – Floor mounting of the safety reversing

sensor will require hardware not provided.

• Step 6, page 20 – Do you have a finished ceiling in your

garage? If so, a support bracket and additional fastening

hardware may be required.

• Step 12, page 24 – Do you have a steel, aluminum,

fiberglass or glass panel door? If so, horizontal and

vertical reinforcement is required.

• Look at the garage door where it meets the floor. It

must close on the floor all the way across. Otherwise,

the safety reverse system may not work properly. See

page 30. Floor or door should be repaired.

• The opener can be installed within 4 feet of the left or

right of the door center if there is a torsion spring or

center bearing plate in the way of the header bracket or

door bracket area. If your door has extension springs,

the opener must be installed in the center of the door.

See pages 12 and 24.

• Do you have an access door in addition to the garage

door? If not, Model 7702CB Outside Quick Release is

required. See page 38.

• If your door is more than 7 feet high, see the rail

extension kit listed on page 38.

Safety Reversing Sensor

FINISHED CEILING

Support bracket

& fastening

hardware is required.

See page 20.

Safety Reversing Sensor

Header

Wall

Access Door

Gap between floor and bottom of

door must not exceed 1/4".

Closed Position

Header

Bracket Trolley

Straight

Door

Arm

Manual

Release

Rope & Handle

Door

Bracket

Curved

Door

Arm

Header

Wall

Rail Assembly

Garage

Door

Rail

Bracket

Before you begin, survey your garage area to see whether any of the conditions below apply to your installation.

You may find it helpful to refer back to this page as you proceed with the installation of your opener.

Based on your particular requirements, there are several

installation steps which might call for materials and/or

hardware not included in the carton.

• Step 1, page 13 – Look at the wall or ceiling above the

garage door. The header bracket must be securely

fastened to structural supports.

• Step 6, page 20 – Do you have a finished ceiling in your

garage? If so, a support bracket and additional fastening

hardware (not supplied) may be required.

• Safety reversing sensor, page 16 – Depending on garage

construction, extension brackets (see Accessories) or

wood blocks may be needed to fasten sensors to

mounting locations.

• Step 14, page 17 – Floor mounting of the safety reversing

sensor will require hardware that is not provided.

• Step 12, page 25 – Generally, a one-piece door does not

require reinforcement. If your door is lightweight, you

can refer to the information relating to sectional doors

on page 24.

• Step 12, page 25 – Depending on your door's

construction, you might need additional mounting

hardware for the door bracket.

• Do you have an access door in addition to the garage

door? If not, Model 7702CB Outside Quick Release is

required. See page 38.

• The gap between the bottom of the garage door and

the floor cannot exceed 1/4". Otherwise, the safety

reverse system may not work properly. See page 30.

The floor or the door should be repaired.

ONE-PIECE Door Installation

One-Piece Door without Track

Access

Door

Floor must be level

across width of door

Safety

Reversing Sensor

Header

Bracket

Door

Bracket Straight

Door

Arm

Curved

Door Arm

Trolley

Manual Release

Rope & Handle

Rail Assembly

Garage

Door

Header

Wall

Safety

Reversing

Sensor

One-Piece Door With Track

Closed Position

Rail

Bracket

Center

Rail

Trolley Rack

Extend

End Rails

Outward

Extend

End Rails

Outward

Rail Assembly

Carton

Remove

Cardboard Packing

Remove

Cardboard Packing

Rail

Support

Braces

Straight

Door Arm

Rail Assembly

Hardware Bag Chassis Assembly

Hardware Bag

ASSEMBLY STEP 1

Assemble the Rail

Assembly Section: Pages 8 - 11

Center Rail

Door End Rail

Rail

Sprocket

Trolley Rack

Sprocket End Rail

Rotate

1. Turn the opened rail carton upside down, emptying its

contents onto a level work surface.

2. Unfold the rails, taking care to avoid kinking the screw

rod joints.

3. Rotate the rail sections so that the flat side is down and

the screw side is up for all three lengths. Keep it clean

and free of debris while you are working.

CAUTION: During assembly, avoid pulling the rail

section housing the trolley rack away from the screw

rod. The rack is factory set about 9" from the end of the

screw rod to the center of the rack.

If the plastic liner slides part way out during assembly,

simply push it back in.

To avoid installation difficulties, do not run the garage

door opener until instructed to do so.

Center Rail

Slide End

Rails Towards

Center Rail

Slide End

Rails Towards

Center Rail

Rail

Support

Brace

Lock

Nuts

Center

Rail

Rail Pin

Alignment

Hole

Rail

Support

Brace

Rail Pin

Alignment

Hole

Alignment

Hole

1/4x20x1-3/4"

Bolts

1/4x20x1-3/4"

Bolts

Lock

Nuts

End

Rail

Door End

Sprocket End

4. Beginning with the sprocket end, straighten the two

rail sections so that the screw rod is in a straight line at

the joint. (Avoid handling the joints, which may have

sharp edges.)

5. Carefully slide the pins at the top edge of the rail into

the openings on the adjacent rail. It is essential that

the rail assembly be on a level surface to achieve

proper alignment and to avoid damage to the pins.

6. Insert two 1/4"-20x1-3/4" bolts through the center

holes of a brace, and place its open length against the

rail at this joint, aligning the holes as shown. Position

another brace on the opposite side of the rail over the

bolts, add 1/4"-20 lock nuts, and hand tighten. Insert

two additional bolts and hand tighten.

7. Keeping the rail straight and on a level surface, grasp

the screw rods on each side of the remaining joint and

pivot into a straight line. Repeat steps 5 and 6.

8. With a 7/16 wrench, tighten bolts til snug, working

from the center holes of the braces to those further

from the joints. Do not overtighten.

1/4"-20

Lock Nut

Bolt

1/4-20x1-3/4" (8)

Hardware Shown Actual Size

ASSEMBLY STEP 1 (Continued)

Assemble the Rail

ASSEMBLY STEP 2

Fasten the Rail To the Power Unit

and Install the Trolley

/7/94

Rail

Sprocket

Rail

Assembly

Trolley

Coupling

Rail/Power Unit

Bracket

Lock Nuts

1/4"-20

Power Unit

Sprocket

Power

Unit

Foam Packaging

Hex Screws

1/4"-20x5/8"

1/4" - 20

Lock Nut

1/4" - 20 x 5/8"

Hex Screw

Hardware Shown Actual Size

As illustrated above, slide the trolley onto and along the

bottom of the rail until it snaps firmly in place. Be certain

to install it facing correctly: the trolley release arm must

be horizontal (lock position), with its arrow pointed

away from the power unit.

• Working on a level surface, align the rail assembly with

the power unit, as shown.

• Slip the coupling over the rail sprocket.

• Slide the rail through the power unit bracket until the

coupling fits securely over the power unit sprocket.

• Align the two screw holes in the rail with those in the

power unit bracket. Insert two 1/4"-20x5/8" hex screws

and lock nuts. Tighten securely with a 7/16" socket

wrench.

NOTE: To aid in assembly and installation, replace

the foam packing around the power unit. Remove it

after Installation Step 5.

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