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LiftMaster MRIN Mode D'emploi page 3

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Pad Mount (Option 1) Installation
1. Lay out concrete pad.
2. Install the electrical conduit.
3. Confirm that all power is disconnected from the operator.
4. Pour a concrete pad (reinforced concrete is recommended).
5. Place Riser Stand on concrete pad in the appropriate position.
6. Secure Riser Stand to the concrete pad using four ½" concrete
anchors (not provided).
7. Tighten riser stand to the pad, place the operator on top of the
riser stand.
8. Install the Mounting Bracket with supplied fasteners. Tighten to
30 lbs-ft. Check tightness of all mounting fasteners at least
once every 6 months. Tighten to recommended torque as
needed.
9. Once all attachments are complete, use cover plates to
enclose the riser stand.
1/2" Concrete
(4 Required)
2" to 4" (5.1 to 10.2 cm)
Above Grade
Anchors
Power and Control
Wiring Must Be Run
In Separate Conduit
LAYOUT OF PAD
4" (10.2 cm)
Depth Required By Local
Codes or Below Frost Line
3
(Gate)
1" (2.5 cm)
(Conduit Location)
36" (91.4 cm)
22" (55.9 cm)
11.1" (28.2 cm)
Drive and idler
sprocket toward
gate side
18" (45.7 cm)

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