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LiftMaster 3850 Support Question

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Question posted by EWjespi on October 28th, 2013

Can The Opening And Closing Speed Be Adjusted On A Liftmaster Garage Door

opener

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Related LiftMaster 3850 Manual Pages

3850 Elite Series Manual - Page 1

...-1196 www.liftmaster.com patible with See Page 29 for 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...

3850 Elite Series Manual - Page 2

...-18 Fasten the door bracket 19-20 Connect door arm to trolley 21-22 Adjustment 23-25 Program the travel limits 23 Set the force 24 Test the safety reversal system 25 Test the Protector System 25 Operation 26-33 Operation safety instructions 26 Using garage door opener 26 Using the wall-mounted door control 27 Using...

3850 Elite Series Manual - Page 3

... damage. To prevent damage to garage door and opener: • ALWAYS disable locks BEFORE installing and operating the opener. • ONLY operate garage door opener at 120V, 60 Hz to see if there is not sticking or binding: 1. An unbalanced garage door may not reverse when required. • NEVER try to loosen, move or adjust garage door, door springs, cables, pulleys, brackets or...

3850 Elite Series Manual - Page 8

... into masonry. • NEVER try to loosen, move or adjust garage door, springs, cables, pulleys, brackets, or their hardware, ALL of the garage door. 2. Header Wall 2" (5 cm) Track Highest Point of Travel Door Header Wall Track 2" (5 cm) Highest Point Door of Travel Sectional door with curved track One-piece door with track. • 8" (20 cm) above the high point...

3850 Elite Series Manual - Page 13

... mounted to the close position until completely closed. The trolley will not return to a single gang box (Figure 1). Strip 7/16" (11 mm) of insulation from one 398LM can be seen clearly, is recommended to the R (1) (Figure 2). 2. Fasten with care to operate the same garage door opener, it may damage the LCD screen. Adjust screw for snug...

3850 Elite Series Manual - Page 14

...Connect the red (+) and black (-) wires from motor unit to close the lens. • Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is in each socket. ...not remove the lens. • Install a 100 watt maximum light bulb in the fully open position. Channel Battery Battery Cover INSTALLATION STEP 8 Install the Lights • Press the release...

3850 Elite Series Manual - Page 15

...garage doorway is CLOSED. the white (neutral) wire to the screw on the brass terminal; The opener must be in compliance with an overhand knot. To prevent possible SERIOUS INJURY or DEATH from a falling garage door.... • Adjust rope length so the handle is required by your garage door opener has a grounding type plug with a third grounding pin. Be sure the opener is necessary to...

3850 Elite Series Manual - Page 16

...garage so that the sending and receiving eyes face each location to full open position, and the opener lights will move in the path of the door as long as the wall framing. above floor Invisible Light Beam Protection Area Facing the door from a closing... sensor must be connected and aligned correctly before the garage door opener will flash 10 times. IMPORTANT INFORMATION ABOUT THE SAFETY...

3850 Elite Series Manual - Page 17

... Garage door track installation (preferred): • Slip the curved arms over the rounded edge of each other across the garage door,...door track, with lag screws (not provided). • If using extension brackets or wood blocks, adjust right and left assemblies at each side of the door...INSTALLING THE BRACKETS Be sure power to the opener is needed, an extension bracket (see Accessories...

3850 Elite Series Manual - Page 21

... inner trolley. INSTALLATION STEP 13 Connect Door Arm to Trolley Follow instructions which apply to your door type as shown. • Bring arm sections together. • Find two pairs of holes that the trolley release arm is horizontal. SECTIONAL DOORS ONLY Make sure garage door is operated. Trolley will re-engage automatically when opener is fully closed.

3850 Elite Series Manual - Page 22

... Washers 5/16" Nuts 5/16"-18 Curved Door Arm Figure 5 Inner Trolley Outer Trolley Door Arm Door Arm Connector Hole Emergency Release Handle Closed Door Inner Trolley Outer Trolley Correct Angle Door Arm Open Door Door with a 2 or 3 hole overlap). • Make sure the garage door is being opened or closed . Connect the straight door arm section to the door bracket with the 5/16"x1...

3850 Elite Series Manual - Page 23

... there appears to be SERIOUSLY INJURED or KILLED by using the black and purple buttons to close ) limit and the door should open ) limit and begins closing garage door. • Incorrect adjustment of garage door travel limits will interfere with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on contact with proper operation of safety reversal system. • NEVER use...

3850 Elite Series Manual - Page 24

... system. • NEVER use force adjustments to be SERIOUSLY INJURED or KILLED by a closing garage door. • Too much force on garage door will interfere with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on contact with proper operation of force required to open and close (DOWN). 3. The door will open and close the door (DOWN). Push the door control or programmed remote control...

3850 Elite Series Manual - Page 25

... obstructed (and the sensors are made, the safety reversal system MUST be SERIOUSLY INJURED or KILLED by a closing garage door. ADJUSTMENT STEP 3 Test the Safety Reversal System TEST • With the door fully open the door. • Place the opener carton in the path of the opener. The door must reverse on the floor. 1-1/2" (3.8 cm) board (or a 2x4 laid flat...

3850 Elite Series Manual - Page 26

... not close . 5. If fully open garage door. Bulb power is activated. If rope knot becomes untied, you can be programmed before use emergency release handle unless garage doorway is activated. Garage door MUST reverse on when someone walks through the open , the door will reverse. If the door has been stopped in the opening , the door will close when the beam is adjusted, the...

3850 Elite Series Manual - Page 29

...ALL electric and battery power BEFORE performing ANY service or maintenance. • Use ONLY LiftMaster part number 485LM for disposal instructions. After the electrical power has been restored, the battery...the battery charge is low. • To test the battery is functioning properly, open and close the garage door. • Re-connect the motor unit power cord back into the electrical outlet...

3850 Elite Series Manual - Page 30

...; NEVER use emergency release handle unless garage doorway is clear of Your Opener MAINTENANCE SCHEDULE Once a Month • Manually operate door. The door should be raised and lowered manually as often as necessary. If it is CLOSED. To Open the Door Manually To prevent possible SERIOUS INJURY or DEATH from reconnecting automatically. Adjust limits and/ or force if...

3850 Elite Series Manual - Page 31

... properly: • Check battery connections. 8. My door will not close and the light bulbs blink on my motor unit: The safety reversing sensor must be connected and aligned correctly before the garage door opener will not activate the door: • Verify your door, check diagnostic LED for no apparent reason: Repeat safety reverse test after adjustments to disengage.

3850 Elite Series Manual - Page 32

... . • Disconnect wires at door control, touch wires together. Momentarily short across red and white terminals with self-diagnostic capabilities. See Adjustment section. • If the motor..."Learn" Button LED or Diagnostic LED "Learn" Button Installed Safety Reversing Sensor Your garage door opener is programmed with jumper wire. The "Learn" button/diagnostic LED will flash a ...

3850 Elite Series Manual - Page 38

...entries. 370LM 378LM 915LM CLOSED OPEN Garage Door Monitor: Security for the largest door of your garage door is designed to turn ...backup power to open or closed. Surge Protector: The Garage Door Opener Surge Protector is open garage door manually from ...LiftMaster® garage door openers against damage from car, bedside, or anywhere in the garage. Includes battery. Wireless Door...