LiftMaster SW420 SW420 GL BOARD Manual - Page 10

Pad Mounting, IMPORTANT NOTE

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INSTALLATION PAD MOUNTING 1. Layout the concrete pad (Figure 1). IMPORTANT NOTE: The relative location of the operator to the fence and the gate is critical. Be sure that the measurements for operator mounting are taken from the centerline of the fence and of the gate hinge. 2. Locate electrical conduit, as required, prior to pouring concrete. 3. Pour concrete pad. 4. Bolt the (2) pad mount brackets to the bottom of the operator with the hardware provided. 5. Secure the operator to the concrete pad. It is very important that the operator be level and square to the gate. Figure 1 Pivot Gate Fence Line 6-1/2" 19" 18"x30" Pad Minimum 26-3/4" 6" 1/2" Concrete Anchor Bolts Pivot Gate Parallel Mount Fence Line 14-3/4" 6" 18-1/2" 19" Figure 2 Perpendicular Mount Using Suitable Hardware Secure Operator to L-bolts Concrete Pad 1/2" (12.7 mm) Concrete Anchors (4 Required) Power and Control Wiring Should Be Run In Separate Conduit 2" to 4" (5.1 to 10.2 cm) Above Grade Depth Required By Local Codes or Below Frost Line Hardware Type (6X) 10 Pad Mount Bracket

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10
PAD MOUNTING
1. Layout the concrete pad (Figure 1).
IMPORTANT NOTE:
The relative location of the operator to the
fence and the gate is critical. Be sure that the measurements for
operator mounting are taken from the centerline of the fence and
of the gate hinge.
2.
Locate electrical conduit, as required, prior to pouring
concrete.
3. Pour concrete pad.
4.
Bolt the (2) pad mount brackets to the bottom of the operator
with the hardware provided.
5.
Secure the operator to the concrete pad. It is very important
that the operator be level and square to the gate.
Figure 1
Figure 2
INSTALLATION
26-3/4"
14-3/4"
19"
19"
6"
6"
Gate
Pivot
Gate
Pivot
Fence Line
Fence Line
1/2" Concrete
Anchor Bolts
Parallel Mount
Perpendicular Mount
6-1/2"
18-1/2"
18"x30" Pad
Minimum
1/2" (12.7 mm)
Concrete Anchors
(4 Required)
Depth Required By Local
Codes or Below Frost
Line
Concrete Pad
Power and Control
Wiring Should Be Run In
Separate Conduit
Using Suitable Hardware Secure
Operator to L-bolts
2" to 4"
(5.1 to 10.2 cm)
Above Grade
Pad Mount Bracket
Hardware Type (6X)