Chamberlain SL585103U Installation Manual page 15

STEP 1 (continued)
INSTALL THE OPERATOR
Check the national and local building codes before installation.
POST MOUNT INSTALLATION
RETRO-FIT INSTALLATION
The operators come from the factory configured to mount to an inside
the frame post mount dimension of 26" (66 cm) (outside to outside of
posts). The frame comes slotted to accommodate posts 24-1/8" (61 cm)
to 26" (66 cm), outside to outside. NOTE: If you are replacing a SL580,
the frame will require adjustment to 24-1/8".
NEW INSTALLATION
1. Locate and anchor two posts made of 3" (7.6 cm) outer diameter
heavy walled pipe. Posts should be parallel and square to the gate.
2. Locate electrical conduit, as required, prior to pouring concrete.
3. Secure operator to posts using four 3" (7.6 cm) U-bolts and hardware
provided.
3" (7.6 cm) U-bolts
(4 Required)
INSTALLATION
14" (35.6 cm)
Minimum
Power and Control Wiring Must
Be Run In Separate Conduit
8.5" (21.6 cm)
Drive and idler sprocket toward gate side
Depth Required By
Local Codes or Below
Frost Line
13
(Gate)
3" (7.6 cm) outside diameter
heavy wall fence pipe
26" (66 cm)