LiftMaster Miracle-One MIRACLE ONE Manual - Page 13

Step 4 con't, Step 5, Important, Caution - operators

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PROCEDURE FOR INSTALLATION Mounting Instructions Step 4 (con't): The gate must be in the closed position. Make sure the operator is kept level while tack welding the front and back steel brackets and reinforcement steel plates in position. After all tack welding is finished, remove the operator! Refer to Step 6 Refer to Step 7 2.25" Vertical Height Difference Step 5: With the operator removed, completely weld around the brackets and plates on the gate. Caution: Welding the brackets with the operator attached to the gate may damage the operator. Step 6: Remove the nut, bolt and bushing from the back operator bracket. Place the metal bushing in the hole of the steel bracket that will be used. Secure operator with the nut and bolt (See Below). Step 7: Remove the nut from the traveler carriage at the front of the operator. Secure operator to the front bracket with the washer and nut (See Below). Metal Bushing Back Bracket Important: Washer Must be placed between traveler carriage and TOP of front bracket. Important: These nuts MUST be tight or unit will not work correctly! Traveler Carriage Front Bracket 12

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PROCEDURE FOR INSTALLATION
2.25"
Vertical Height Difference
Step 4 (con't):
The gate
must
be in the closed position.
Make sure the operator is kept level
while tack
welding the front and back steel brackets and reinforcement steel plates in position. After all tack welding is
finished,
remove the operator!
Caution:
Welding the brackets with the operator attached to the gate may damage the operator.
Step 5:
With the operator removed,
completely
weld around the brackets and plates on the gate.
Step 6:
Remove the nut, bolt and bushing from
the
back
operator bracket. Place the metal bushing
in the hole of the steel bracket that will be used.
Secure operator with the nut and bolt (See Below).
Step 7:
Remove the nut from the traveler carriage at
the
front
of the operator. Secure operator to the front
bracket with the washer and nut (See Below).
Metal
Bushing
Traveler
Carriage
Front Bracket
Back
Bracket
Mounting Instructions
Refer to
Step 7
Refer to
Step 6
Important:
These nuts
MUST
be tight or
unit will not work correctly!
Important:
Washer
Must
be placed
between traveler carriage
and
TOP
of front bracket.
12