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9

Installation

3 Attach the Rail to the Header Bracket

1. Align the rail with the header bracket. Insert the clevis pin through the holes in the header

bracket and rail. Secure with the ring fastener.

NOTE:

Use the packing material as a protective base for the garage door opener.

Ring
Fastener

Clevis Pin
5/16" X 2-3/4"

HARDWARE

Clevis Pin 5/16" x 2-3/4" 

Ring Fastener 

4 Position the Garage Door Opener

To prevent damage to garage door, rest garage door opener rail on 2x4 placed on top section of
door.

1. Remove the packing material and lift the garage door opener onto a ladder.
2. Fully open the door and place a 2x4 (laid flat) under the rail.

A 2x4 is ideal for setting the distance between the rail and the door. If the ladder is not tall enough you
will need help at this point. If the door hits the trolley when it is raised, pull the trolley release arm down to
disconnect the inner and outer trolley. Slide the outer trolley toward the garage door opener. The trolley
can remain disconnected until instructed.

Connected

Disconnected

Summary of Contents for 8550

Page 1: ...WILL NOT CLOSE unless the Protector System is connected and properly aligned Periodic checks of the garage door opener are required to ensure safe operation The model number label is located on the left side panel of your garage door opener This garage door opener is ONLY compatible with MyQ and Security 2 0 accessories DO NOT enable the Timer to Close feature if you are installing the garage door...

Page 2: ...r springs cables pulleys brackets or their hardware ALL ofwhich are under EXTREME tension l Disable ALL locks and remove ALL ropes connected to garage door BEFORE installation and operating garage door opener to avoid entanglement To preventdamage to garage door and opener l ALWAYS disable locks BEFORE installing and operating the opener l ONLY operate garage door opener at 120V 60 Hz to avoid mal...

Page 3: ...h hex screws K Belt L Door control M White and red white wire N The Protector System Safety reversing sensors with white and white black wire attached Sending Sensor 1 Receiving Sensor 1 and Safety Sensor Brackets 2 O Safety labels and literature P Rail grease Security 2 0 Accessories 880LM SmartControl Panel 895MAX Remote Control Installation Hardware Hex bolt5 16 18 x 7 8 4 Lock washer 5 16 4 La...

Page 4: ...Remove boltand lock nutfrom the top ofthe garage door opener 2 Align the rail and the styrofoam over the sprocket Cutthe tape from the rail belt and styrofoam 3 Model 8550 Fasten the rail with the previously removed bolts Model 8557 Fasten the rail with the previously removed washered boltand lock nut 4 Position the beltaround the garage door opener sprocket 5 Attach the sprocketcover over the gar...

Page 5: ... one ofthe nutring slots and brace itfirmly againstthe trolley 3 Tighten the spring trolley nutwith an adjustable wrench or a 7 16 open end wrench abouta quarter turn until the spring releases and snaps the nutring againstthe trolley This sets the spring to optimum belttension Spring Trolley Nut To motor unit Nut ring slot Nut Ring Nut Ring AFTER RELEASE 1 1 4 3 18 cm BEFORE 1 2 5 cm 1 2 3 ...

Page 6: ...structed to do so 8 NEVER wear watches rings or loose clothing while installing or servicing opener They could be caughtin garage door or opener mechanisms 9 Install wall mounted garage door control l within sightofthe garage door l outofreach ofchildren atminimum heightof5 feet 1 5 m l away from ALL moving parts ofthe door 10 Place entrapmentwarning label on wall nextto garage door control 11 Pla...

Page 7: ... mark the inside vertical centerline ofthe garage door Extend the line onto the header wall above the door You can fasten the header bracketwithin 4 feet 1 22 m ofthe leftor rightofthe door center only ifa torsion spring or center bearing plate is in the way or you can attach itto the ceiling when clearance is minimal Itmay be mounted on the wall upside down ifnecessary to gain approximately 1 2 1...

Page 8: ...ten the bracketsecurely to a structural supportwith lag screws Wall Mount Optional Mounting Holes Vertical Centerline of Garage Door Header Wall Header Bracket 2x4 Structural Support Door Spring Garage Door Highest Point of Garage Door Travel Horizontal Line Lag Screw 5 16 9 x 1 5 8 OPTION B CEILING INSTALLATION 1 Extend the vertical centerline onto the ceiling as shown 2 Center the bracketon the ...

Page 9: ...mage to garage door restgarage door opener rail on 2x4 placed on top section of door 1 Remove the packing material and liftthe garage door opener onto a ladder 2 Fully open the door and place a 2x4 laid flat under the rail A 2x4 is ideal for setting the distance between the rail and the door Ifthe ladder is nottall enough you will need help atthis point Ifthe door hits the trolley when itis raised...

Page 10: ...fthe motor unitto the structural support 2 Cutboth pieces ofthe hanging bracketto required lengths 3 Drill 3 16 pilotholes in the structural supports 4 Attach one end ofeach bracketto a supportwith 5 16 18x1 7 8 lag screws notprovided 5 Fasten the opener to the hanging brackets with 5 16 18x7 8 hex bolts lock washers and nuts 6 Check to make sure the rail is centered over the door or in line with ...

Page 11: ...or DEATH from a falling garage door l Ifpossible use emergency release handle to disengage trolley ONLY when garage door is CLOSED Weak or broken springs or unbalanced door could resultin an open door falling rapidly and or unexpectedly l NEVER use emergency release handle unless garage doorway is clear ofpersons and obstructions l NEVER use handle to pull door open or closed Ifrope knotbecomes un...

Page 12: ...cket2 4 5 10 cm below the top edge ofthe door OR directly below any structural supportacross the top ofthe door 3 Mark drill holes and install as follows depending on your door s construction Metalorlight weight doors using a verticalangle iron brace between the doorpanelsupport and the doorbracket l Drill 3 16 fastening holes Secure the door bracketusing the two selfthreading screws Figure 1 l Al...

Page 13: ...oles as far apartas possible and attach using the bolts nuts and lock washers NOTE Ifthe holes do notline up reverse the straightdoor arm Selecttwo aligned holes as far apartas possible and attach using the bolts nuts and lock washers 5 Pull the emergency release handle toward the garage door opener until the trolley release arm is horizontal The trolley will re engage automatically when the garag...

Page 14: ...ghtof5 feet 1 5 m where small children cannotreach and away from the moving parts ofthe door For gang box installations itis notnecessary to drill holes or install the drywall anchors Use the existing holes in the gang box NOTE Your productmay look differentthan the illustrations HARDWARE Screw 6ABx1 2 Drywall Anchors 2 Screw 6 32x1 2 1 Strip 7 16 inch 11 mm ofinsulation from one end ofthe wire an...

Page 15: ...ox or pre wired installations Do notpierce the wire with the staple as this may cause a shortor an open circuit 2 Strip 7 16 inch 11 mm ofinsulation from the end ofthe wire near the garage door opener 3 Connectthe wire to the red and white terminals on the garage door opener To insertor release wires from the terminal push in the tab with screwdriver tip 7 16 11 mm 2 3 1 Staple RED WHITE WHITE GRE...

Page 16: ...n and the garage door opener lights will flash 10 times NOTE For energy efficiency the garage door opener will enter sleep mode when the door is fully closed The sleep mode shuts the garage door opener down until activated The sleep mode is sequenced with the garage door opener lightbulb as the lightbulb turns offthe sensor LEDs will turn off and whenever the garage door opener lights turn on the ...

Page 17: ...or bracket No more than 6 inches 15 cm Carriage Bolt 1 4 20x1 2 Wing Nut 1 4 20 1 2 3 OPTION B WALL INSTALLATION Ifadditional clearance is needed an extension bracket notprovided or wood blocks can be used Make sure each brackethas the same amountofclearance so they will align correctly 1 Position the sensor bracketagainstthe wall with the curved arms facing the door Make sure there is enough clea...

Page 18: ...age Bolt 1 4 20x1 2 Wing Nut 1 4 20 3 4 2 Wire the Safety Reversing Sensors PRE WIRED INSTALLATIONS Ifyour garage already has wires installed for the safety reversing sensors see page 18 HARDWARE Insulated Staple Not shown OPTION A INSTALLATION WITHOUT PRE WIRING 1 Run the wire from both sensors to the garage door opener Attach the wire to the wall and ceiling with the staples 2 Strip 7 16 inch 11...

Page 19: ...ite black wire would connectto the purple wire 4 Atthe garage door opener strip 7 16 inch 11 mm ofinsulation from each end ofthe wires previously chosen for the safety reversing sensors Twistthe like colored wires together 5 Insertthe wires connected to the white safety sensor wires to the white terminal on the garage door opener Insertthe wires thatare connected to the white black safety sensor w...

Page 20: ...ng to local code Wiring through a filterboard 8550 models manufactured before April12 2013 1 Be sure power is NOT connected to the opener and disconnectpower to circuit 2 Remove the garage door opener cover and set aside 3 Remove the attached green ground terminal 4 Cutblack and white wires Strip away 1 2 inch 1 cm ofinsulation 3 inches 7 5 cm before spade terminals 5 Remove the power cord from op...

Page 21: ...rrectly Green LED Amber LED If the receiving sensor is in direct sunlight switch it with sending sensor so it is on the opposite side of the door invisible light beam SENDING SENSOR RECEIVING SENSOR IF THE AMBER LED ON THE SENDING SENSOR IS NOT GLOWING 1 Make sure there is power to the garage door opener 2 Make sure the sensor wire is notshorted broken 3 Make sure the sensor has been wired correct...

Page 22: ...nts easy The adjustments allow you to program where the door will stop in the open UP and close DOWN position The electronic controls sense the amountofforce required to open and close the door The force is adjusted automatically when you program the travel NOTE Ifanything interferes with the door s upward travel itwill stop Ifanything interferes with the door s downward travel itwill reverse UP O...

Page 23: ...the DOWN Button until the door is in the desired DOWN position 5 Once the door is in the desired DOWN position press and release the AdjustmentButton The garage door opener lights will flash twice and the UP Button will begin to flash 6 Press and release the UP Button When the door travels to the programmed UP position the DOWN Button will begin to flash 7 Press and release the DOWN Button The doo...

Page 24: ...ntactwith the 1 1 2 inch board remove the board and open close the door 3 or 4 times to testthe adjustment Ifthe garage door opener continues to fail the safety reversal test call a trained door systems technician 1 2 3 Test the Protector System Withouta properly installed safety reversing sensor persons particularly small children could be SERIOUSLY INJURED or KILLED by a closing garage door 1 Op...

Page 25: ... compartmentwith the terminals facing out 4 Connectred and black wires from the garage door opener to the corresponding terminals on the battery 5 Replace the battery cover 6 Plug in the garage door opener 7 Waitfor the green Battery Status LED to startflashing before proceeding to testthe battery Battery Status LED Ifapplicable 2 Test the Battery 1 Unplug the garage door opener The battery status...

Page 26: ...o Close and Remote Close features are unavailable Ifapplicable partnumber 485LM Battery Status LED GREEN LED All systems are normal l A solid green LED lightindicates the battery is fully charged l A flashing green LED indicates the battery is being charged ORANGE LED The garage door opener has lostpower and is in battery backup mode l A solid orange LED with beep sounding approximately every 2 se...

Page 27: ...ER use handle to pull garage door open or closed Ifrope knotbecomes untied you could fall 9 After ANY adjustments are made the safety reversal system MUST be tested 10 Safety reversal system MUST be tested every month Garage door MUST reverse on contactwith 1 1 2 3 8 cm high object or a 2x4 laid flat on the floor Failure to adjustthe garage door opener properly increases the risk ofSEVERE INJURY o...

Page 28: ...ge door opener down until activated The sleep mode is sequenced with the garage door opener lightbulb as the lightbulb turns offthe sensor LEDs will turn offand whenever the garage door opener lights turn on the sensor LEDs will light The garage door opener will notgo into the sleep mode until the garage door opener has completed 5 cycles upon power up LIGHTS The garage door opener lightbulbs will...

Page 29: ...d when the home is empty i e vacation TIMER TO CLOSE TTC DO NOT enable TTC ifoperating a one piece door TTC is to be used ONLY with sectional doors Factory defaultis setto off TTC can be setto automatically close your garage door from the fully open position after a specified period oftime 1 5 10 minute intervals or a custom setting up to 99 minutes The garage door opener will Beep and the lights ...

Page 30: ... garage door opener lights or a keyless entry SETTINGS Press the navigation button below the down arrow till you see TEMPERATURE to view the Settings menu Display the temperature in Fahrenheit or Celsius and show hide the temperature Select a language Set duration for garage door opener light to stay on after operation selectable range of 1 1 2 to 4 1 2 minutes Turn the Motion sensor off on and tu...

Page 31: ...TROL KEYLESS ENTRY PIN USING THE DOOR CONTROL 1 Press the navigation button below MENU to view the Features menu 2 Use the navigation buttons to scroll to PROGRAM 3 Select REMOTE or KEYPAD to program from the program menu 4 Remote Control Press the button on the remote control thatyou wish to operate your garage door Keyless Entry Enter a 4 digitpersonal identification number PIN ofyour choice on ...

Page 32: ...peat until the lightbulb blinks DO NOT press the button after the lightbulb blinks 6 To exitprogramming mode press any remote control button except the button thatwas just programmed 7 To test press the programmed button on the remote control The garage door opener will activate 1 2 3 4 5 7 6 Learn D E L Yellow Program Button To Erase the Memory ERASE ALL REMOTE CONTROLS AND KEYLESS ENTRIES 1 Pres...

Page 33: ...VER use handle to pull door open or closed Ifrope knotbecomes untied you could fall DISCONNECT THE TROLLEY 1 The door should be fully closed ifpossible 2 Pull down on the emergency release handle RECONNECT THE TROLLEY The lockoutfeature prevents the trolley from reconnecting automatically 1 Pull the emergency release handle down and back toward the opener The door can then be raised and lowered ma...

Page 34: ...tteries Screws 2 To replace the batteries remove the two screws and open the remote control housing Push the battery outofthe holder for removal Insert replacementbatteries positive side up Replace the batteries with only 3V CR2016 coin cell batteries Dispose of old batteries properly NOTICE To complywith FCC and orIndustryCanada IC rules adjustmentormodificationsofthistransceiverare prohibited TH...

Page 35: ...nsure both LEDs are steady and notflickering Make sure nothing is hanging or mounted on the door thatwould interruptthe sensors path while closing 1 5 Door moves 6 8 stops or reverses Manually open and close the door Check for binding or obstructions such as a broken spring or door lock correctas needed Check wiring connections attravel module and atthe logic board Replace travel module ifnecessar...

Page 36: ...erify the lock feature is notactivated on the door control l Reprogram the remote control l Ifthe remote control will still notactivate the door check the diagnostic codes to ensure the garage door opener is working properly My doorwillnot close and the light bulbs blink on my motorunit The safety reversing sensor mustbe connected and aligned correctly before the garage door opener will move in th...

Page 37: ... garage door openers manufactured since 1993 Includes visor clip 881LM Motion Detecting ControlPanelwith Timer to Close Control Multi function door control with motion sensor thatautomatically turns opener lights on when itdetects a person entering the garage SECURITY 2 0 compatible 825LM Remote Light Control Automatically control your lights using your garage door opener a SECURITY 2 0 remote con...

Page 38: ... option You are responsible for any costs incurred in removing and or reinstalling the product or any component ALL IMPLIED WARRANTIES FOR THE PRODUCT INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED IN DURATION TO THE APPLICABLE LIMITED WARRANTY PERIOD SET FORTH ABOVE FOR THE RELATED COMPONENT S AND NO IMPLIED WARRANTIES WILL ...

Page 39: ...feet 3 m 2770BD 5 Trolley Assembly 41B3869 3A 6 Tensioner Assembly 41B4103 7 Trolley Threaded Shaft 109B48 Not Shown Owner s Manual 114A4665 Description Part Number 1 Curved Door Arm 178B35 2 Door Bracket with Clevis Pin and Fastener 41A5047 1 3 Emergency Release Rope and Handle 41A2828 4 Header Bracket with Clevis Pin and Fastener 41A4353 1 5 Remote Control Visor Clip 29C151 6 Safety Sensor Brack...

Page 40: ...41C589 2 2 End Panel with battery cover and light socket 41D217 3 Light Lens 41A7562 4 Light Socket 41C279 5 Transformer 41A7635 6 Cover 041A7619 7 Motor and Travel Module 41D1739 1 8 Travel Module 41A7114 7 9 End Panel and light socket 41D216 10 Receiver Logic Board 45DCT Garage Door Opener Parts MODEL 8550 ...

Page 41: ...se have the following information part number part name and model number Address repair parts order to LiftMaster 6050 S Country Club Rd Tucson AZ 85706 For installation and service information call 1 800 528 9131 Or visit us online at www LiftMaster com DESCRIPTION Part Number 1 Cover with screws 41A4371 2 Gear and sprocket 41A4885 5 3 Drive and Worm Gear 41A2817 4 End panel 041A7756 5 Light Sock...

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