Nortek Control Mighty Mule MM571W Installation Manual page 28

WARNING: THE OPERATOR MUST BE INSTALLED WHILE FULLY RETRACTED, WITH THE GATE IN THE
CLOSED POSITION.
Your Property
Step 3
● With the gate in the CLOSED
position, use clamps to secure the
operator to the gate post and center
cross member of the gate.
● Ensure that the operator is level.
● With the operator arm temporarily
secured to the gate, check to
ensure there is at least 2 inches of
clearance between the operator arm
and gate. (See illustration in Step 4
below).
Step 4
● Disconnect the operator arm from the
gate bracket.
● While supporting the operator, swing
the gate and operator to the OPEN
position.
● Check for recommended clearances
and binding as shown.
● Ensure that the necessary arm stroke
does not exceed 20 inches.
● Make adjustments to the mounting
brackets to achieve the recommended
clearances.
TIP: Turning the pivot bracket over
gives more hole alignment options for
the gate post pivot bracket assembly.
MM571W / MM572W Installation Instructions
PUSH-TO-OPEN OPERATOR MOUNTING
20" MAX
Post Bracket Assembly
Gate in Closed Position
CLEARANCE DIAGRAM
25
Gate Bracket