LiftMaster GH GT- Logic 4 Installation Manual - Page 8

Install The Chain Models T And Gt

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TROLLEY INSTALL THE CHAIN (MODELS T AND GT) NOTE: For 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. 3 Run the chain along the track to the operator. Wrap the chain around the operator drive sprocket. 4 Run the chain along the track to the front idler. Wrap the chain around the front idler. 5 Attach the chain to the front of the trolley using the master link. 6 Tighten the chain until the chain sags about 3 inches at the mid point of the track. 2 1 2˝ MODEL T 3 MODEL GT 4 5 6 3˝ Assembly - Trolley 8

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TROLLEY
8
Assembly - Trolley
INSTALL THE CHAIN (MODELS T AND GT)
3˝
2˝
1
2
4
5
6
3
NOTE:
For 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.
3
Run the chain along the track to the operator. Wrap the chain
around the operator drive sprocket.
4
Run the chain along the track to the front idler. Wrap the chain
around the front idler.
5
Attach the chain to the front of the trolley using the master
link.
6
Tighten the chain until the chain sags about 3 inches at the
mid point of the track.
MODEL T
MODEL GT