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8
Assembly Step 2
Assemble and Install Trolley
AS A TEMPORARY STOP, INSERT A SCREW-
DRIVER INTO HOLE IN FRONT END OF T-RAIL.
Attach threaded shaft to trolley with lock washer and
nuts as shown.
Slide trolley assembly along rail to screwdriver stop.
NOTE: If trolley hits against nut on T-rail, bolts
and nuts were attached from the wrong side and
must be repositioned. Review Step 1.
Assembly Step 3
Fasten T-rail to Opener
PROCEDURE: Place the opener on packing
material to protect the cover. For convenience,
place a support under the cable pulley bracket.
Remove the (2) 5/16"-18x1/2" washered screws
mounted in the top of the opener. Align holes in
back section of T-rail with holes in opener. Fasten
the rail with the (2) washered screws previously
removed and tighten securely.
CAUTION: USE ONLY THESE SCREWS! Use of
any other screws will cause serious damage to
door opener.
Insert a 5/16"-18x7/8" hex screw into trolley stop
hole in T-rail as shown. Tighten securely with a
5/16" lock washer and nut.
USE ONLY THOSE SCREWS MOUNTED
IN TOP OF OPENER. FAILURE TO DO SO
WILL CAUSE SERIOUS DAMAGE TO
OPENER.
Washered Screw
5/16"-18x1/2"
USE ONLY THIS
TYPE AND SIZE
SCREW
Temporary Stop
Screwdriver
Trolley
Threaded
Shaft
Lock Washer
5/16"
Outer Nut
5/16"
Inner Nut
5/16"
Trolley
Trolley
Hex Screw
5/16"-18x7/8"
Washered Screw
5/16"-18x1/2"
USE ONLY THIS
TYPE AND SIZE
SCREW
T-rail
(Back Section)
Trolley
Stop Hole
Nut
5/16"-18
Hex Screw
5/16"-18x7/8"
Lock Washer
5/16"
13mm Socket Wrench
13mm Socket Wrench