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4
TROLLEY CARRIAGE / CHAIN ATTACHMENT
1. Attach the take-up bolt to the trolley carriage using
3/8-16" hex nuts and lock washer, as shown below.
2. Using one of the master links, attach the chain to the other
end of the trolley carriage. Reel the chain around the front idler
shaft, over the spacer brackets, back to the drive shaft
sprocket, and then to the take-up bolt on the carriage.
3. Using the other master link, attach the chain to the take-up
bolt and tighten to the desired chain tension.
Chain Tension: With trolley positioned at either end of the track, a
properly adjusted chain will sag about 3" (7.62 cm) at the
mid-point. If necessary, remove links from the chain to achieve
proper adjustment.
TRACK ASSEMBLY
1. Using the 3/8"-16 x 3/4" bolts and flange hex nuts provided,
assemble the operator track by installing and tightening the
track spacer brackets. Position the spacers evenly over the
length of the track. NOTE: The nylon pad on the spacer
bracket should face up.
2. Using (2) 3/8"-16 x 1" bolts and lock washers, install the front
idler assembly to the second set of holes of one end of the
track. Refer to the illustration below.
3. Slide the trolley carriage onto the track so that the take-up bolt
will be toward the operator.
POWERHEAD ATTACHMENT
1. Position the track assembly on the frame of the powerhead so
that the motor side of operator is in back (away from door).
2. Loosely install two 3/8"-16 x 3/4" bolts and nuts in third hole
from the end of the track.
3. Align the track so that the bolts inserted in step 2 line up with
the L-Slots in the frame.
4. Connect the track to the powerhead by fastening two
3/8"-16 x 3/4" bolts and nuts through the frame and the end
holes in track. Tighten all four bolts to secure the track to the
powerhead.
PREPARATION
To prevent possible SERIOUS INJURY or DEATH:
• DO NOT connect electric power until instructed to do so.
• If the door lock needs to remain functional, install an
interlock switch.
• ALWAYS call a trained professional door serviceman if door
binds, sticks or is out of balance. An unbalanced door may
not reverse when required.
• NEVER try to loosen, move or adjust doors, door springs,
cables, pulleys, brackets or their hardware, ALL of which are
under extreme tension and can cause SERIOUS personal
INJURY.
• Disable ALL locks and remove ALL ropes connected to door
BEFORE installing and operating door operator to avoid
entanglement.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNINGWARNING
PRECAUCIÓN
ADVERTENCIA
ADVERTENCIAADVERTENCIA
L-Slot
Spacer Bracket
(Mounted Nylon Pad Side Up)
Trolley Carriage
Take-Up Bolt
Front Idler Assembly
Master Link
Trolley Carriage
Take-Up Bolt
Hex Nut
Hex Nut
Master Link
Roller Chain
Straight Arm
Lockwasher
Trolley Assembly
Reel Chain
Around Idler and
Over Spacer Brackets
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