Chamberlain LIFTMASTER PROFESSIONAL SW470 - Manual (Page 9)

9
I N S T A L L A T I O N
POST MOUNTING (SW470)
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.
IMPORTANT NOTE: The distance between mounting posts and
the relative location of the operator to the gate and fence is
critical.
2. Locate electrical conduit, as required, prior to pouring concrete.
3. Set mounting post and electrical conduit in place (Figure 2).
Knockouts for 3" pipe clamps (not supplied) are provided in the
operator.
3" U-bolt
(4 required)
Power and control wiring should
be run in separate conduit
Operator
Operator
Perpendicular Mount
Parallel Mount
Concrete pad
16 x 32 minimum
Concrete pad
16 x 32 minimum
3" O.D. pipe
(2 req’d.)
3" O.D. pipe
(2 req’d.)
Fence
Fence
Figure 1
Figure 2
23"
30"
9.5"
18.5"
20"
23"