Craftsman 139.18887 Owner'S Manual Download

Page: 37 / 40

Repair Parts

Opener Assembly Parts

Brown

Wire

(Down)

Contact

LIMIT SWITCH ASSY.

Grey

Wire

Yellow

Wire

(Up)

Contact

Center Limit

Contact

Drive

Gear

18 19

KEY

PART

NO.

DESCRIPTION

41A4371

Belt cap retainer

41A4885-3

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

41A2817

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

41B4245

Line cord

41C4876

Wire harness assembly w/plug

41A5021-2C

Receiver logic board assembly
Complete with:
Logic board
End panel w/all labels

41A4924

End panel w/all labels

175B88M

Light socket

KEY

PART

NO.

DESCRIPTION

108D48-2

Lens

30B363

Capacitor - 1/2HP

12A373

Capacitor bracket

41D3150

Terminal block w/screws

41C4842

Universal replacement motor &
bracket assembly
Complete with: Motor, worm,
bracket, bearing assembly,
RPM sensor

41R396-3

Cover

41A2818

Helical gear & retainer w/grease

41D3452

Limit switch assembly

41C4398A

RPM sensor assembly

41A2826

Shaft bearing kit

41A2822A

Interrupter cup assembly

41A4923

End panel

NOT SHOWN

41A2825

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

Summary of Contents for 139.18887

Page 1: ... and follow all safety rules and operating instructions before first use of this product Fasten the manual near the garage door after installation Safety Precautions Assembly Installation Adjustment Care and Maintenance Operation Troubleshooting Parts List Sears Best Sears Canada Inc Toronto Ontario M5B 2B8 ...

Page 2: ...y 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 safety reversing sensor 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 and remote control programming 33 Having a problem 34 35 Repair par...

Page 3: ...e 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 c...

Page 4: ...fety reversing sensor page 21 Depending upon garage construction wood blocks may need to be fastened to mounting locations before sensors are installed Step 10 page 22 Alternate floor mounting of the safety reversing sensor will require hardware not provided Step 11 page 24 Do you have a steel aluminum fiberglass or glass panel door If so horizontal and vertical reinforcement is required Look at t...

Page 5: ... 11 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 11 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 18752 Outside Trolley Release is require...

Page 6: ...2 Light Lens 2 Trolley 2 Safety Reversing Sensors 1 Sending Eye and 1 Receiving Eye with 2 Conductor White White Black Bell Wire attached Premium Control Console LOCK LIGHT Belt Belt Cap Retainer Door Bracket Belt Pulley Bracket SECURITY Three Function Remote Control with Visor Clip 2 Opener Carton Inventory Your garage door opener is packaged in two cartons which contain all parts illustrated bel...

Page 7: ...t 1 Screw 6ABx1 2 Lock Washer 5 16 6 Lock Nut 1 4 20 4 Carriage Bolt 1 4 20x1 2 4 Safety Reversing Sensor Installation Hardware Hex Screw 1 4 20x1 1 2 2 Screw 10 32x3 8 4 Lock Nut 10x32 4 Wing Nut 2 Insulated Staples 20 RAIL GREASE NO 83A4 Rail Grease Hex Screw 5 16 18x7 8 3 Hex Screw 5 16 18x7 8 4 Lag Screw 1 4x1 1 2 4 Spring Trolley Nut 1 Trolley Clip 1 Lag Screw 5 16 9x1 5 8 2 Lag Screw 5 16 18...

Page 8: ...t Pulley Bracket Bracket Rail Must Be Aligned Lock Washer 5 16 Nut 5 16 18 If T rail is not assembled EXACTLY as shown trolley will not travel smoothly along length of rail or it will hit against the nuts To avoid installation difficulties do not run the garage door opener until instructed to do so Assembly Section Pages 8 11 When tightening the screws be sure to keep bracket parallel to the rail ...

Page 9: ...rew Washered Screw 5 16 18x1 2 T rail Back Section Cover Protection Bolt Hole Nut 5 16 18 Hex Screw 5 16 18x7 8 Lock Washer 5 16 9 As a temporary stop insert a screwdriver into the hole in the front end of the T rail Slide the trolley assembly along the rail to the screwdriver stop If trolley hits against any nuts on the T rail the bolts and nuts were attached from the wrong side and must be repos...

Page 10: ...in moving opener sprocket Attach belt cap retainer securely Never operate opener while your hand is near the opener sprocket WARNING Nut Ring Trolley Threaded Shaft Nut Ring Slots Trolley Square End Nut Ring Trolley Nut Ring Trolley 1 1 1 4 BEFORE AFTER RELEASE Trolley Threaded Shaft Spring Trolley Nut Trolley Opener Sprocket Belt Pulley Slip Belt Clip Connector through Pulley Bracket from this di...

Page 11: ...instructed to do so 6 Locate the Door Control within sight of the door at a minimum height of 5 feet where small children cannot reach and away from all moving parts of the door 7 Install the User Safety Instruction Label on the wall adjacent to the door control and the Maintenance Instruction Label in a prominent location on the inside of the garage door 8 Upon completion of the installation the ...

Page 12: ...r you can attach it to the ceiling refer to page 14 when clearance is minimal It may be mounted on the wall upside down if necessary to gain approximately 1 2 If you need to install the header bracket on a 2x4 on wall or ceiling use lag screws not supplied to securely fasten the 2x4 to structural supports as shown here and on page 13 Installation Section Pages 12 27 Sectional door with curved trac...

Page 13: ...to floor 92 Actual height of door 88 Remainder 4 Add 8 Bracket height on header wall 12 Measure UP from top of CLOSED door Proceed to Step 2 page 14 13 Header Wall Highest Point of Travel Door Distance Jamb Hardware ONE PIECE Door Without Track Open your door to the highest point of travel as shown Measure the distance from the top of the door to the floor Subtract the actual height of the door Ad...

Page 14: ...m edge of the bracket on the horizontal line as shown with the arrow pointing toward the ceiling Mark either set of bracket holes do not use the holes designated for ceiling mount Drill 3 16 pilot holes and fasten the bracket securely to a structural support with the hardware provided Fasten the Header Bracket to the Ceiling Installation Step 2 Install the Header Bracket Lag Screw 5 16 9x1 5 8 Har...

Page 15: ...as a protective base If the door spring is in the way you ll need help Have someone hold the opener securely on a temporary support to allow the T rail to clear the spring Position the belt pulley bracket against the header bracket Align the bracket holes and join with a clevis pin as shown Insert a ring fastener to secure 15 Installation Step 3 Attach the T rail to the Header Bracket Clevis Pin 5...

Page 16: ...the T rail If the top panel hits the trolley when you raise the door pull down on the trolley release arm to disconnect the inner and outer sections The trolley can remain disconnected until Step 12 is completed T rail 2x4 Laid Flat Door Stepladder ONE PIECE Door without Track With the door fully open and parallel to the floor measure the distance from the floor to the top of the door Using a step...

Page 17: ...sure the T rail is centered over the door or in line with the header bracket if the bracket is not centered above the door Remove the 2x4 Operate the door manually If the door hits the rail raise the header bracket Measure Distance Lag Screws 5 16 18x1 7 8 Structural Supports 5 16 18x7 8 Screw 5 16 Lock Washer 5 16 18 Nut Bracket Not Supplied Lag Screws 5 16 18x1 7 8 Not Supplied 5 16 18x7 8 Screw...

Page 18: ...one end of the bell wire and connect it to the two screw terminals on the back of the door control white to 2 and white red to 1 2 Pry off cover along one side with a screwdriver blade see Figure 1 Fasten with 6ABx1 1 4 self tapping screws standard installation or 6 32x1 machine screws pre wired installation as follows Install bottom screw allowing 1 8 to protrude above wall surface Position botto...

Page 19: ...am is connected and properly aligned See Safety Reversing Sensor instructions beginning on page 21 Installation Step 8 Attach the Emergency Release Rope and Handle Do not use the red handle to pull the door open or closed The rope knot could become untied and you could fall Use the emergency release only to disengage the trolley and if possible only when the door is closed Garage doors are heavy I...

Page 20: ... prong cord Connect the 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 cover 20 To prevent electrocution or fire installation and wiring must be in compliance with local electrical and building codes Do NOT use an extension cord 2 wire adapter or ch...

Page 21: ...wood at each location if installing in masonry construction The invisible light beam path must be unobstructed No part of the garage door or door tracks springs hinges rollers or other hardware can interrupt the beam while the door is closing If it does use a piece of wood to build out each sensor mounting location to the minimum depth required for light beam clearance 21 The Safety Reversing Syst...

Page 22: ...nnect each assembly to a slotted bracket using the hardware shown in Figure 3 Note the alignment of the brackets for left and right sides of the door Finger tighten the lock nuts Use bracket mounting holes as a template to locate and drill 2 3 16 diameter pilot holes on both sides of the garage door 4 6 above the floor but not exceeding 6 See warning on page 21 Attach bracket assemblies with 1 4 x...

Page 23: ...ible light beam path is not obstructed alignment is required Loosen the sending eye wing nut and re adjust aiming directly at the receiving eye Lock in place Loosen the receiving eye wing nut and adjust sensor vertically and or horizontally until it receives the sender s beam When the green indicator light glows steadily tighten the wing nut 23 1 4 20 x 1 1 2 Hex Bolt C Wrap Sensor with Wire Wing ...

Page 24: ...de the bracket Position the bracket on the face of the door within the following limits A The top edge of the bracket 2 4 below the top edge of the door B The top edge of the bracket directly below any structural support across the top of the door Mark and drill 5 16 left and right fastening holes Secure the bracket as shown in Figure 1 if there is vertical reinforcement If your installation doesn...

Page 25: ...4 Support All ONE PIECE Door Installation Procedure Center the bracket on the inside face of the door in line with the header bracket as shown Mark either the left and right or the top and bottom holes Drill 5 16 pilot holes and fasten the door bracket with hardware supplied 25 Please read and comply with the warnings and reinforcement instructions on page 24 They apply to one piece doors also Car...

Page 26: ...dle Rope Lock Washers 5 16 Nuts 5 16 18 Screws 5 16 18x7 8 Cut This End Figure 3 If holes in curved arm are above holes in straight arm disconnect straight arm Cut about 6 from the solid end Reconnect to trolley with cut end down as shown Bring arm sections together Find two pairs of holes that line up and join with screws lock washers and nuts Proceed to Adjustment Step 1 page 28 Trolley will re ...

Page 27: ...o the open position parallel to the floor and lift the door arm to the trolley The arm should touch the trolley just in back of the door arm connector hole Refer to the fully open trolley door arm positions in the illustration If the arm does not extend far enough adjust the limit further One full turn equals 2 of trolley travel Closed Door Adjustment Decrease DOWN limit Turn the DOWN limit adjust...

Page 28: ...When to Adjust the Limits If the door does not open completely but opens at least five feet Increase up travel Turn the UP limit adjustment screw clockwise One turn equals 2 of travel NOTE To prevent the trolley from hitting the cover protection bolt keep a minimum distance of 2 4 between the trolley and the bolt If door does not open at least 5 feet Adjust the UP open force as explained in Adjust...

Page 29: ...ckwise Make 10 degree turn adjustments until the door stops easily After each adjustment run the opener through a complete travel cycle If the door doesn t open at least 5 feet Increase UP Open force by turning the control clockwise Make 10 degree turn adjustments until door opens completely Re adjust the UP limit if necessary After each adjustment run the opener through a complete travel cycle If...

Page 30: ...d adjust as needed 30 Adjustment Step 3 Test The Safety Reversing Sensor Press the remote control push button to open the door Place the opener carton in the path of the door Press the remote control push button to close the door The door will not move more than an inch and the opener lights will flash Professional service is required if the opener closes the door when the safety reversing sensor ...

Page 31: ... an adjustment is made to either the force or the limit of travel both adjustments may be needed and the safety reversal system must be checked Failure to properly adjust the opener may result in severe injury or death 5 If possible use the emergency release only when the door is in a closed position Caution should be taken whenever the disconnect cord is actuated with the door open Weak or broken...

Page 32: ...e push button light will stop flashing The Lock feature will also turn off whenever the SRT button on the opener panel is activated Operation of the Door Control SECURITY models See additional programming features next page Activate the opener with any of the following The Remote Control Hold push button down until the door starts to move The Door Control Hold push button down until the door start...

Page 33: ...utilizing up to 8 functions one SECURITY Keyless Entry System Model 18795 Follow the instructions below to program your opener to match any additional remotes you may purchase See Accessories on page 38 To Add A Remote Control If you have a Premium Control Console 1 With the door closed press and hold a remote control push button See Figure 1 2 Press and hold the Light button on the door control 3...

Page 34: ...he receiver programming procedure with all remote controls The remote control has short range The garage door opens and closes by itself 1 Be sure that all remote control push buttons are off 2 Remove the bell wire from the Door Control terminals and operate from the remote control only If this solves the problem the Door Control is faulty replace or there is an intermittent short on the wire betw...

Page 35: ... by its springs If it does not disconnect the opener and call a professional garage door serviceman Do not increase the force to operate the opener The opener motor hums briefly then won t work 1 The garage door springs are broken See above 2 If the problem occurs on the first operation of the opener door may be locked Disable the door lock If the belt was removed and reinstalled the motor may be ...

Page 36: ... NO DESCRIPTION 1 41A4884 Premium control console 2 41A5076 2 3 function remote control housing no circuit board 3 10A20 3V 2032 Lithium battery 1 required 4 29B134 Visor clip 5 41A2828 Emergency rope handle assembly 6 41A4353 Header bracket w clevis pin fastener 7 217A238 2 conductor bell wire white white red 8 178B35 Curved door arm section 9 41A5047 Door bracket w clevis pin fastener 10 41A4373...

Page 37: ...ss assembly w plug 6 41A5021 2C Receiver logic board assembly Complete with Logic board End panel w all labels 7 41A4924 End panel w all labels 8 175B88M Light socket KEY PART NO NO DESCRIPTION 9 108D48 2 Lens 10 30B363 Capacitor 1 2HP 11 12A373 Capacitor bracket 12 41D3150 Terminal block w screws 13 41C4842 Universal replacement motor bracket assembly Complete with Motor worm bracket bearing asse...

Page 38: ...th NO access door SECURITY 3 Function Remote Control Includes visor clip 18756 18752 18792 18790 18791 18795 18785 We recommend that you program your password before you install the Keyless Entry You will not need assistance and you can test the reception at the mounting location before installation If you have a Premium Control Console 1 With the door closed press the four digit password desired ...

Page 39: ...stment procedures 28 Problems that might require limit adjustments 34 35 Safety warnings 28 31 Manual Emergency Release Rope Handle Lockout feature 32 Manual disconnect 32 Safety warnings 11 19 31 32 Opener Terminals Door control connections 18 Safety reversing sensor connections 23 Receiver and Remote Control Programming the receiver 33 Erasing all codes 33 Activating other openers 33 Safety warn...

Page 40: ...through 8 years Sears will furnish replacement parts for any defective parts in motor free of charge You pay for the labor WARRANTY SERVICE IS AVAILABLE BY SIMPLY CONTACTING THE NEAREST SEARS STORE OR SERVICE CENTER This warranty gives you specific legal rights and you may also have other rights which vary from province to province SEARS CANADA INC TORONTO ONTARIO M5B 2B8 1998 Sears Canada Inc 114...

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