Chamberlain 985 - Manuals

Assembly Step 1 Attach the T-rail to the Opener To fasten rail, use only those screws mountedin top of the opener. Failure to do so will causeserious damage to the opener. 6 USE ONLY THIS TYPE AND SIZE SCREW Washered Screw 5/16"-18x1/2" Styrofoam Chain T-rail Hole Assembly Step 2 Attach Chai...

• Spin the inner nut and lock washer down the threaded shaft, away from the trolley. • To tighten the chain, turn outer nut in the direction shown. As you turn the nut, keep the chainfrom twisting. • When the chain is approximately 1/2" above the base of the T-rail at its midpoint, re-tighten th...

• Open your door to the highest point of travel as shown. Drawan intersecting horizontal lineon the header wall 2" abovethe high point. This height willprovide travel clearance for thetop edge of the door. Header Wall Ceiling Track Highest Point of Travel Door 2" 8 Proceed to Step 2, page 10...

Header Wall Vertical Centerline Vertical Centerline of Garage Door 2x4 Unfinished Ceiling Structural Supports 2x4 OPTIONAL CEILING MOUNT FOR HEADER BRACKET • Close the door and mark the inside vertical centerline ofyour garage door. Extend theline onto the header wallabove door. If headroom clearanc...

Lag Screws 5/16"-9x1-5/8" Highest Point of Travel (of Garage Door) Vertical Center Line 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 mount the header bracket. UP CEILING MOUNT ...

Header Bracket Chain Pulley Bracket Temporary Support Header Wall Garage Door T-rail Clevis Pin 5/16"x2-3/4 " Ring Fastener Header Bracket Chain Pulley Bracket T-rail • Position the opener on the garage floor below the header bracket. Use packing material as aprotective base. If the door spr...

Installation Step 4 Position the Opener Follow instructions which apply to your door typeas illustrated. T o p r e v e n t d a m a g e t o s t e e l , a l u m i n u m ,fiberglass or glass panel doors, do not rest theopener on the door without using a 2x4. SECTIONAL Door & ONE-PIECE Door with Tra...

Installation Step 5 Hang the Opener Two representative installations are shown.Yours may be different. Hanging brackets shouldbe angled, Figure 1, to provide rigid support. Onfinished ceilings, Figure 2, attach a sturdy metalbracket to structural supports before installing theopener. The bracket and...

14 Installation Step 6 Install the Door Control Children operating or playing with a garagedoor opener can injure themselves or others.The garage door could close and cause seriousinjury or death.Install the Door Control (or any additional pushbuttons) out of the reach of children and awayfrom all m...

Installation Step 8 Attach the Manual Release Rope and Handle Do not use the red handle to pull the dooropen or closed. The rope knot could become u n t i e d a n d y o u c o u l d f a l l . U s e t h e m a n u a lrelease only to disengage the trolley and, ifpossible, only when the door is closed. G...

To reduce the risk of electric shock, your garagedoor opener has a grounding type plug with a thirdgrounding pin. This plug will only fit into a grounding type outlet. If the plug doesn't fit into the outlet you have,contact a qualified electrician to install the properoutlet. To avoid installation ...

Without a properly working safety reversingsensor, persons (particularly children) could beinjured or killed by a closing garage door. Readand follow all instructions. To protect small children, install the safetyreversing sensor so that the beam will be nohigher than 4"-6" above the garage ...

Installation Step 10 Install the Safety Reversing Sensor(Receiving and Sending Eyes) 18 FLOOR MOUNT (Right Side) WALL MOUNT (Right Side) DOOR TRACK MOUNT (Right Side) Indicator light Lens Lip Sensor Bracket Door Track Sensor Bracket Optional Extension Bracket (See Accessories) Lens Indicator light A...

Installation Step 11 Fasten Door Bracket Follow instructions which apply to your door typeas illustrated below or on page 21. T o p r e v e n t d a m a g e t o s t e e l , a l u m i n u m ,f i b e r g l a s s o r g l a s s p a n e l d o o r s , a l w a y sreinforce the inside of the door both vertic...

Door Bracket Inside Edge of Door or Reinforcement Board Horizontal and vertical reinforcement is needed for lightweight garage doors (fiberglass, aluminum, steel, door with glass panel, etc.). (Not Provided) Header Wall Vertical Centerline of Garage Door — Finished Ceiling — Header Bracket 2x4 Suppo...

Installation Step 12 Connect Door Arm to Trolley Follow instructions which apply to your door typeas illustrated below and on page 23. Make sure garage door is fully closed. Pull the manual release handle to disconnect the outer trolleyfrom the inner trolley. Slide the outer trolley back (away from ...

Nuts 5/16"-18 Lock Washers 5/16" Ring Fastener Straight Door Arm Screws 5/16"-18x7/8" Door Bracket 5/16"x1-1/4" Clevis Pin Curved Door Arm Fully Open Trolley Door Arm Connector Hole Door Arm Closed Door Open Door Door with Backward Slant Door Arm Connector Hole Fully Closed T...

Adjustment Step 1 Adjust the UP and DOWN Limits Do not make any limit adjustments until theSafety Reversing Sensors are completelyinstalled. 24 Limit adjustment settings regulate the points atwhich the door will stop when moving up or down. The door will stop in the up direction if anything interfer...

Adjustment Step 2 Adjust the Force Too much force on the door will interfere witht h e p r o p e r o p e r a t i o n o f t h e s a f e t y r e v e r s esystem. The door might not reverse properly when required and could seriously injure orkill someone under it. Do not increase theforce beyond the mi...

Adjustment Step 4 Test the Safety Reverse System Test: • With the door fully open, place a one-inch board (or a 2x4 laid flat) on the floor, centered under thegarage door. • Operate the door in the down direction. The door must reverse on striking the obstruction. Adjustment: If the door stops on th...

Once a Month Manually operate door. If it is unbalanced orbinding, call for professional garage door service.Check to be sure door opens & closes fully.Adjust limits and/or force if necessary. (See pages24 and 25.)Repeat the safety reverse test. Make anynecessary adjustments (See page 26). Twice...

To open the doormanually: The door should be fullyclosed if possible. Pulldown on the red manualrelease handle and liftthe door manually. Toreconnect the door tothe opener, press theDoor Control push bar. 28 Activate the opener with any of the following: • The Remote Control Transmitter. Hold pushbu...

Children operating or playing with a garagedoor opener can injure themselves or others.T h e g a r a g e d o o r c o u l d c l o s e a n d c a u s eserious injury or death. Do not allow childrent o o p e r a t e t h e d o o r c o n t r o l ( s ) o r r e m o t econtrol transmitter(s).A m o v i n g g ...

1. Does the opener have electric power? Plug a lamp into the outlet. If it doesn't light, check the fuse box or the circuit breaker. (Some outlets are controlled by a wall switch.) 2. Have you disabled all door locks? Review installation instruction warnings on Page 7. 3. Is there a build-up of ice ...

The chain droopsor sags: It is normal for the chain to droop slightly in the closed door position. Use the manualrelease rope and handle to disconnect the trolley. If the chain returns to the normalheight when the trolley is disengaged and the door reverses on a 2x4 laid flat, noadjustments are need...

6 11 10 4 NOTICE 5 UP CEILING MOUNT ONLY 7 8 3 2 1 9 12 1 3 4 5 2 RAIL GREASE NO. 83A4 6 Repair Parts Rail Assembly Parts Installation Parts 32 KEY PART NO. NO. DESCRIPTION 1 1A995 Master link kit 2 41B4813 Chain pulley bracket 3 41A3489 Complete trolley assembly 4 183B99 One-piece T-rail 5 41A3484 ...

Repair Parts 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 33 Opener Assembly Parts KEY PART NO. NO. DESCRIPTION 1 31D380 Sprocket cover 2 41C4220A Gear and sprocket assemb...

34 We recommend that you program your code before youinstall the Keyless Entry. You will not need assistance,and you can test the reception at the mounting locationbefore installation. 1. Choose a 4-digit code using numbers from 0 to 9 (a number can be used more than once, for example, 4, 0,4, 1). 2...

Index Access Door/Outside Quick Release Accessory........................................................................................31, 34 Chain Tension .................................................................................................................................................

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