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Motor Unit Assembly Parts

34

2

10

8

13

14

15

16

19

4

3

DN

UP

Brown
Wire

(Down)
Contact

LIMIT SWITCH ASSY.

Grey
Wire

Yellow
Wire

(Up)
Contact

Center Limit
Contact

Drive
Gear

9

20

16

12

18

11

17

3

1

5

6

7

KEY

PART

NO.NO.

DESCRIPTION

1

31D380

Sprocket cover

2

41C4220A

Gear and sprocket assembly

Complete with: 

Spring washer, 

Thrust washer, Retaining ring,
Bearing plate, Roll pins (2), 
Drive gear and worm gear,
Helical gear w/retainer and grease

3

41A2817

Drive/worm gear kit w/grease
Roll pins (2)

4

41B4245

Line cord

5

143D100

End panel w/all labels 

6

175B88

Light socket

7

108D36

Lens

8

30B387

Capacitor - 1/3HP

30B363

Capacitor - 1/2HP

9

12A373

Capacitor bracket

10

41A3150

Terminal block w/screws

11

41D3058

Universal replacement motor &
bracket assembly

Complete with

:

Motor, worm, bracket, bearing
assembly, RPM sensor

KEY

PART

NO.NO.

DESCRIPTION

12

41R370-16

Cover (Model 1245BM)

41R370-17

Cover (Model 1255BM)

13

41A2818

Limit switch drive & retainer

14

41D3452

Limit switch assembly

15

41C4398A

RPM sensor assembly

16

41C4246

Wire harness assembly w/plug

17

41A2826

Shaft bearing kit

18

41A2822A

Interrupter cup assembly

19

41A5021-1G Receiver logic board assembly

Complete with:  

Logic board, 

end panel w/all labels

20

41A5014-3

End panel w/all labels

NOT SHOWN

41A2825

Opener assembly hardware kit 
(includes screws not designated
by a number in illustration).

Summary of Contents for 1245BM

Page 1: ...arefully 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 e...

Page 2: ...problem 29 30 Programming 31 32 To add a hand held remote control 31 To erase all codes 31 3 Channel remotes 31 To add or change a Keyless Entry PIN 32 Repair Parts 33 34 Rail assembly parts 33 Insta...

Page 3: ...ring your garage door Before you begin Disable locks Remove any ropes connected to garage door Complete the following test to make sure your garage door is balanced and is not sticking or binding 1 Li...

Page 4: ...vey your garage area to see if any of the conditions below apply to your installation Additional materials may be required You may find it helpful to refer back to this page and the accompanying illus...

Page 5: ...Your garage door opener is packaged in two cartons which contain the motor unit and all parts illustrated below Accessories will depend on the model purchased If anything is missing carefully check t...

Page 6: ...ASSEMBLY STEP 2 Attach the Chain to the Sprocket and Install the Sprocket Cover Position chain over the sprocket If necessary loosen the outer nut on the trolley to obtain more chain slack Insert the...

Page 7: ...door opener only on properly balanced and lubricated garage door An improperly balanced door may not reverse when required and could result in SEVERE INJURY or DEATH 3 All repairs to cables spring ass...

Page 8: ...shown Draw an intersecting horizontal line on the header wall 2 above the high point This height will provide travel clearance for the top edge of the door Proceed to Step 2 page 10 One piece door wit...

Page 9: ...hown Measure the distance from the top of the door to the floor Subtract the actual height of the door Add 8 to the remainder See Example 3 Close the door and draw an intersecting horizontal line on t...

Page 10: ...Garage Door Travel Vertical Centerline Header Wall Garage Door UP CEILING MOUNT ONLY Wall Mounting Holes Optional Wall Mounting Holes The nail hole is for positioning only You must use lag screws to m...

Page 11: ...ed help Have someone hold the opener securely on a temporary support to allow the Rail to clear the spring Position the rail bracket against the header bracket Align the bracket holes and join with a...

Page 12: ...tting an ideal door to Rail distance Raise the opener onto a stepladder You will need help at this point if the ladder is not tall enough Open the door all the way and place a 2x4 laid flat on the top...

Page 13: ...to make sure the Rail is centered over the door or in line with the header bracket if the bracket is not centered above the door 7 Remove the 2x4 Operate the door manually If the door hits the Rail r...

Page 14: ...return to the close position until the sensor beam is connected and properly aligned See Safety Reversing Sensor Instructions beginning on page 17 Dry Wall Anchors Insulated Staples Screw 6ABx1 1 2 L...

Page 15: ...s shown Secure with an overhand knot at least 1 from the end of the rope to prevent slipping Thread the other end of the rope through the hole in the release arm of the outer trolley Adjust rope lengt...

Page 16: ...he black line wire to the screw on the brass terminal the white neutral wire to the screw on the silver terminal and the ground wire to the green ground screw The opener must be grounded Reinstall the...

Page 17: ...her can be installed on the left or right of the door as long as the sun never shines directly into the receiving eye lens The mounting brackets are designed to clip onto the track of sectional garage...

Page 18: ...dge of the track as shown in Figure 1 If your door track will not support the bracket securely wall installation is recommended Wall installation Place the bracket against the wall with curved arms fa...

Page 19: ...ye wing nut and readjust aiming directly at the receiving eye Lock in place Loosen the receiving eye wing nut and adjust sensor until it receives the sender s beam When the green indicator light glows...

Page 20: ...or panel support and the door bracket Drill 3 16 fastening holes Secure the door bracket using the two 1 4 14x5 8 self threading screws Figure 2A Alternately use two 5 16 bolts lock washers and nuts n...

Page 21: ...INUM STEEL DOORS WITH GLASS PANEL ETC NOT PROVIDED ONE PIECE DOORS Please read and comply with the warnings and reinforcement instructions on the previous page They apply to one piece doors also Cente...

Page 22: ...far apart as possible to increase door arm rigidity Figure 3 Hole alignment alternative If holes in curved arm are above holes in straight arm disconnect straight arm Cut about 6 from the solid end Re...

Page 23: ...s 5 16 Ring Fastener Straight Arm Bolts 5 16 18x7 8 Door Bracket Clevis Pin 5 16 x1 1 4 Curved Door Arm Press the Door Control push button The trolley will travel to the fully closed position Manually...

Page 24: ...Adjustment Step 2 If the door does not close completely Increase down travel Turn the down limit adjustment screw counterclockwise One turn equals 2 of travel If door still won t close completely and...

Page 25: ...clockwise Make small adjustments until the door completes a close cycle After each adjustment run the opener through a complete travel cycle Do not increase the force beyond the minimum amount requir...

Page 26: ...on the one inch board remove the obstruction and run the opener through 3 or 4 complete travel cycles to test adjustment IMPORTANT SAFETY CHECK Repeat Adjustment Steps 1 2 and 3 after Each adjustment...

Page 27: ...ially plugged in when the power is interrupted when the opener is activated and when someone walks through the open garage door It will turn off automatically after 4 1 2 minutes Bulb size is 75 watts...

Page 28: ...e emergency release handle to disengage trolley ONLY when garage door is CLOSED Weak or broken springs or unbalanced door could result in an open door falling rapidly and or unexpectedly NEVER use eme...

Page 29: ...the location of the remote control in your car Check to be sure the antenna on the side or back panel of motor unit extends fully downward Some installations may have shorter range due to a metal door...

Page 30: ...s to force or travel limits The need for occasional adjustment of the force and limit settings is normal Weather conditions in particular can affect door travel 11 The door reverses for no apparent re...

Page 31: ...n Door Control all three buttons are held 4 Release buttons when the motor unit lights blink It has learned the code If light bulbs are not installed two clicks will be heard KG KG 1 3 9 7 5 1 3 9 7 5...

Page 32: ...the present PIN then press and hold the button The opener light will blink twice Release the button 2 Press the new 4 digit PIN you have chosen then press Enter The motor unit lights will blink once...

Page 33: ...function remote control housing no circuit board 3 10A20 3V2032 Lithium battery 4 29B137 Remote control visor clip 5 41A2828 Emergency release rope and handle 6 217A238 2 Conductor bell wire white whi...

Page 34: ...Lens 8 30B387 Capacitor 1 3HP 30B363 Capacitor 1 2HP 9 12A373 Capacitor bracket 10 41A3150 Terminal block w screws 11 41D3058 Universal replacement motor bracket assembly Complete with Motor worm brac...

Page 35: ...can be easily deactivated when desired Model 976LG SAFETY SIGNAL 2 Channel Remote Control Includes visor clip Outside Keylock Opens the garage door automatically from outside when remote control is n...

Page 36: ...RIZED REPAIRS OR ANY ALTERATIONS TO THIS PRODUCT LABOR CHARGES FOR DISMANTLING OR REINSTALLING A REPAIRED OR REPLACED UNIT REPLACEMENT OF BATTERIES AND LIGHT BULBS OR UNITS INSTALLED FOR NON RESIDENTI...

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