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Question posted by andrNor on October 8th, 2014

Lift Master Professional Line 1/2hp Won't Go Down

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Related LiftMaster T Manual Pages

GT- Logic 4 Installation Manual - Page 1

...AND HJ T AND APT L 4 ogic L3 GH THIS PRODUCT IS TO BE INSTALLED AND SERVICED BY A TRAINED DOOR SYSTEMS TECHNICIAN ONLY. NOT FOR RESIDENTIAL USE 315MHz Radio Receiver Built on the 3-button station will signal when the set ...C AL INTENAN E PATENT PENDING R T T SYS The Maintenance Alert System™ allows the installer to locate a professional installing dealer in C2 operating mode.

GT- Logic 4 Installation Manual - Page 8

... Model APT assembly refer to page 9. 1 Position the trolley 2 inches away from the front idler. 2 Attach the chain to the trolley threaded shaft using the master link. 6 Tighten the chain until the chain sags about 3 inches at the mid point of the trolley using the...

GT- Logic 4 Installation Manual - Page 9

... with nuts (B). 6 Run the chain along the track to the free end of the drive link using a master link. 10 Attach the other end of the bolts. A Bolt 3/8"-16 x 3/4" B Flange Hex Nut 3/8"-16 3...door). Pull the release clip on the end of the track. The chain will need to the front idler. Wrap the chain around the front idler. 9 Attach one end of the chain to the drive link using a master...

GT- Logic 4 Installation Manual - Page 10

AVERTISSEMENT 5 Fasten the header bracket with a vertical line, extend the line onto the ceiling. 2 Open the door to structural support on header wall or ceiling, otherwise door might NOT reverse when required. Trolley 5 ADVERTENCIA PRECAUCIÓN 3 4" 4 10 Extension springs require center mounting. 1 Close the door. ATTENTION 1 2 Typical installation - Typically, the operator may...

GT- Logic 4 Installation Manual - Page 12

Make sure the open side of the notch on the door arm faces the door. 2 Position the door bracket to the center line of the door and attach the door bracket to the trolley. Trolley 12 HARDWARE A Flanged Hex Nut 3/8"-16 (2) B Nylok Nut 3/8"-16 (1) Bolt 3/8"-16 x 1" (3) NOTICE 1 A B 2 Typical installation - NOTE: When properly installed and adjusted the door arm should...

T LOGIC VERSION 2 Manual - Page 3

... Three Phase Momentary contact to OPEN & STOP, constant pressure to CLOSE, open override plus wiring for sensing ...DOOR TRAVEL 10-1/2" *20-1/2" * - DOOR SPEED 11" - 12" per sec. SPECIFICATIONS MOTOR ELECTRICAL TYPE Continuous duty TRANSFORMER 24VAC Secondary HORSEPOWER 1/3, 1/2, 3/4 & 1 Hp CONTROL STATION: ......NEMA 1 three button station. Directly interface to Lift Master...

T LOGIC VERSION 2 Manual - Page 4

...WARNING KEEP DOOR BALANCED. CALL A PROFESSIONAL DOOR SERVICEMAN TO MOVE OR ADJUST DOOR CAUTION ... second set of holes of one of the master links, attach the chain to the other master link, attach the chain to the take-up...necessary, remove links from door ). 2. STICKING OR BINDING DOORS MUST BE REPAIRED. Attach the take -up with the L-Slots in step 2 WARNING line up bolt will sag about...

T LOGIC VERSION 2 Manual - Page 5

... top section reaches its highest point, use a level and project a line from the floor. Swing the operator to a horizontal position. Now open garage door slowly, being careful not to the illustration below. Using the door as support, shim operator to a horizontal position above the door. Determine the highest point of the top section. High Rise Point...

T-LOGIC 3 Manual - Page 5

...tension. Refer to remain functional, install an interlock switch. • ALWAYS call a trained professional door serviceman if door binds, sticks or is in track. Tighten all four bolts to secure the track to...side of operator is out of the powerhead so that the take -up Bolt Hex Nut Master Link Roller Chain Trolley Carriage ADVERTENCIA Spacer Bracket (Mounted Nylon Pad Side Up) L - ...

T-LOGIC 3 Manual - Page 6

... to the wall above the high point. Refer to the highest point of the operator. Extend the line onto the header wall above the guide rails and temporarily secure with the center line of the door. 2. Open your application. This height will provide a mounting pad for the front header bracket of travel clearance for...

T-LOGIC 3 Manual - Page 29

...OPEN or CLOSE button is pressed, Relay A or B LED should turn on . ➤ Check Interlock(s). Return dial to control station. Check for continuity. OR reset the factory defaults (page 26). ➤ Check to see wiring diagram i) Possible accessory malfunction j) Possible logic board failure ➤ Verify primary line... Run Timer (page 25). THE DOOR WILL OPEN BUT a) The photo eyes, edge...

T LOGIC CONTROL VERSION 2 Manual - Page 3

...24VAC Secondary CONTROL STATION: . . .NEMA 1 three button station. Output: #48 chain (1/3 &1/2HP) or #41 chain (3/4 &1HP) OUTPUT SHAFT SPEED: . . . .140 R.P.M. Clutch Shaft: IronCopper sintered and oil impregnated. SAFETY PHOTO EYES (Optional): Thru beam or retro reflective devices used to Lift Master CPS-L or CPS-LN4 Commercial Protector Systems. SAFETY EDGE (Optional): . . . A REVERSING DEVICE...

T LOGIC CONTROL VERSION 2 Manual - Page 4

... PROFESSIONAL DOOR SERVICEMAN TO MOVE OR ADJUST DOOR... STICKING OR BINDING DOORS CAUTION MUST BE REPAIRED. Slide the trolley carriage onto the track so that the bolts inserted in step 2 line up bolt will ... the other end of the track. Trolley Assembly Master Link Hex Nut Lockwasher Trolley Carriage Take-up Bolt Hex Nut Master Link Roller Chain Take-up Bolt Spacer Bracket (mounted...

T LOGIC CONTROL VERSION 2 Manual - Page 5

... Projection Line Vertical Center Line of door travel. Extend this point to ensure adequate support of the door. This will vary due to particular building characteristics, refer to the following general procedures to interfering structures or location of the door. Now open garage door slowly, being careful not to a horizontal position above the door opening. Guide Rails Using the door as...

T- Mechanical New style with thermal overload Manual - Page 3

... Trolley Assembly Master Link Hex Nut Lockwasher Trolley Carriage Take-up Bolt Hex Nut Master Link Roller Chain...DOOR BALANCED. Position the spacers evenly over the spacer brackets, back to the drive shaft sprocket, and then to the other master...the mid-point. CALL A PROFESSIONAL DOOR SERVICEMAN TO MOVE OR ADJUST DOOR SPRINGS OR HARDWARE. STICKING OR BINDING DOORS MUST BE REPAIRED. Using ...

T- Mechanical New style with thermal overload Manual - Page 4

... a level and project a line from the floor. Using suitable hardware, mount the (U shaped) front header bracket to dislodge the temporary support. Using the door as support, shim operator to the wall above the door. Extension springs require center mounting. 1. Slowly raise the door and observe the action of door travel. Now open garage door slowly, being careful not...

T MECHANICAL Manual - Page 3

...the track so that the bolts inserted in step 2 line up bolt to the illustration below . 2. Attach ... Using one end of the master links, attach the chain to the other master link, attach the chain to...door ). 2. Connect the track to achieve proper adjustment. SLOT Straight Arm 3 CALL A PROFESSIONAL DOOR SERVICEMAN TO MOVE OR ADJUST DOOR CAUTION SPRINGS OR HARDWARE. DOORS, DOOR...

T MECHANICAL Manual - Page 4

... mounting pad. Determine the highest point of the top section. Using the projected lines for the front header bracket of door stile / top section support. If necessary reinforce the wall with suitable mounting brackets to a horizontal position. Now open garage door slowly, being careful not to the front header bracket and fasten using the 3/8"dia...

T LOGIC VERSION 1 Manual - Page 3

...CHAIN ATTACHMENT 1. TROLLEY CARRIAGE TROLLEY ASSEMBLY Master Link Hex Nut Lockwasher Trolley Carriage Takeup Bolt Hex Nut Master Link Roller Chain Take-Up Bolt ... 3. Using one end of operator is in step 2 line up bolt and tighten to the illustration below . 2. ... PREPARATION WARNING KEEP DOOR BALANCED. CALL A PROFESSIONAL DOOR SERVICEMAN TO MOVE OR ADJUST DOOR SPRINGS OR HARDWARE....

T LOGIC VERSION 1 Manual - Page 4

... block or length of angle iron to the wall above the door opening. However, off center on torsion spring doors. Allowing the motor to rest on the wall directly above the guide rails and temporarily secure with the center line of the door. Now open garage door slowly, being careful not to the pad. 3.50" 1.75" 4" MIN. OF...