LiftMaster RSL12U RSL12U Installation Manual - Page 13

Attach The Chain

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INSTALLATION STEP 3 ATTACH THE CHAIN DO NOT run the operator until instructed. STANDARD INSTALLATION 1. Manually open the gate and line up the front bracket so the chain will be level with the idler pulley and parallel to the ground. Weld the front bracket in this position. 2. Manually close the gate and line up the rear bracket so the chain will be level with the idler pulley and parallel to the ground. Weld the rear bracket in this position. 3. Route the chain through the operator. 4. Connect the chain to the brackets using the eye bolt hardware. Chain should not be too tight or have excessive slack. NOTE: The chain should have no more than 1 inch of sag for every 10 feet of chain length. Idler Pulley Rear Bracket REAR INSTALLATION NOTE: This installation will require two extra idler pulleys. Make sure all exposed pinch points are guarded. Refer to Gate Construction Information on page 4. 1. Move the back pulley to the bottom hole in the operator. 2. Manually close the gate and align the bottom bracket so the chain will be level with the bottom idler pulley and parallel to the ground. Weld the bottom bracket in this position. 3. Align the top bracket so the chain will be level with the top idler pulley and parallel to the ground. Weld the upper bracket in this position. 4. Route the chain through the operator. 5. Connect the chain to the brackets using the eye bolt hardware. Chain should not be too tight or have excessive slack. NOTE: The chain should have no more than 1 inch of sag for every 10 feet of chain length. 12 Front Bracket Idler Pulley MUST have safety cover.

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12
STEP 3
ATTACH THE CHAIN
DO NOT run the operator until instructed.
STANDARD INSTALLATION
1.
Manually open the gate and line up the front bracket so the chain will be level with the idler pulley and parallel to the ground. Weld the front
bracket in this position.
2.
Manually close the gate and line up the rear bracket so the chain will be level with the idler pulley and parallel to the ground. Weld the rear bracket
in this position.
3.
Route the chain through the operator.
4.
Connect the chain to the brackets using the eye bolt hardware. Chain should not be too tight or have excessive slack.
NOTE:
The chain should have no more than 1 inch of sag for every 10 feet of chain length.
Rear Bracket
Front Bracket
Idler Pulley
INSTALLATION
REAR INSTALLATION
NOTE:
This installation will require two extra idler
pulleys. Make sure all exposed pinch points are
guarded. Refer to Gate Construction Information on
page 4.
1.
Move the back pulley to the bottom hole in the
operator.
2.
Manually close the gate and align the bottom
bracket so the chain will be level with the bottom
idler pulley and parallel to the ground. Weld the
bottom bracket in this position.
3.
Align the top bracket so the chain will be level with
the top idler pulley and parallel to the ground. Weld
the upper bracket in this position.
4.
Route the chain through the operator.
5.
Connect the chain to the brackets using the eye bolt
hardware. Chain should not be too tight or have
excessive slack.
NOTE:
The chain should have no more than 1 inch of
sag for every 10 feet of chain length.
Idler Pulley MUST have
safety cover.