OPERATOR PREPARATION
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.
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" at the mid-point. If necessary, remove links from
the chain to achieve proper adjustment.
KEEP DOOR BALANCED. STICKING OR BINDING
DOORS MUST BE REPAIRED. DOORS, DOOR
SPRINGS, CABLES, PULLEYS, BRACKETS AND
THEIR HARDWARE MAY BE UNDER EXTREME TEN-
SION AND CAN CAUSE SERIOUS PERSONAL
INJURY OR DEATH. CALL A PROFESSIONAL DOOR
SERVICEMAN TO MOVE OR ADJUST DOOR
SPRINGS OR HARDWARE.
WARNING
CAUTION
WARNING
WARNING
SPACER BRACKET
(Mounted Nylon Pad Side Up)
FRONT IDLER ASSEMBLY
TROLLEY CARRIAGE
L - SLOT
Master Link
Takeup Bolt
Roller Chain
Master Link
Hex
Nut
Straight Arm
Lockwasher
Hex Nut
TROLLEY ASSEMBLY
Take-Up Bolt
Trolley Carriage
TRACK ASSEMBLY
1. Using the 3/8"-16 x 3/4 " bolts and flange hex nuts
supplied, 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.
Reel Chain
around Idler and
over Spacer Brackets
4
