Chamberlain LA412 - Manual (Page 15)

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POSITION GATE OPERATOR ON GATE
The post bracket assembly can be mounted several places on the gate post. Refer to page 11 for mounting options.
Place the operator arm against gate post at the desired vertical position and temporarily secure post bracket with a
clamp. The gate operator (arm) must be level.
Open the gate to desired open position (no greater than 100°) and hold operator against gate. Mark mounting holes on
gate for reference. Temporarily secure the gate bracket using a clamp.
For push to open installations refer to instructions with push to open kit 50-19503.
Hold the post bracket in the
desired position. Align the
extension bracket to a position
as CLOSE AS POSSIBLE
above the marker. Insert hex
bolt through extension bracket
and post bracket and secure
with washer, lock washer and
nut.
Hex Bolt 3/8"
Lock Washer
Nut
Washer
15 Installation