Chamberlain Miracle-One Instruction Manual page 13

P R O C E D U R E
M o u n t i n g
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
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).
Metal
Bushing
Back
Bracket
F O R I N S T A L L A T I O N
I n s t r u c t i o n s
Refer to Step 7
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).
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!
12
2.25" Vertical Height Difference
Traveler
Carriage
Front Bracket