Assembly Step 2
install the Trolley on the T-rail
* Attach the threaded shaft to the trolley with the
lock washer and nuts as shown.
Trolley
Outer Nut
Lock Washer
5/16"
Trolley
Threaded Shaft
Inner Nut
5/16"
Hardware Shown
Actual Size
Lock Washer
5/16"
©
Nut
5/16"-18
Temporary Stop
Screwd river
\
* As a temporary stop, insert a screwdriver into the
hole in the front end of the T-rail.
, Slide the trolley assembly along the rail to the
screwdriver stop.
if trolley hits against any nuts on the T-rail, the
bolts and nuts were attached from the wrong
side and must be repositioned. Review Step 1.
Assembly Step 3 I
Fasten the T-rail to the Opener
Place the opener on packing material to protect
the cover. For convenience, put a support under
the cable pulley bracket.
* Remove the (2) 5/16"-18xl/2" washered screws
mounted in the top of the opener.
* Align the holes in the back section of the T-rail with
the holes in the opener.
* Fasten the rail with the (2) washered screws
previously removed. Tighten securely.
Remember to use only these screws! Any other
screws will cause serious damage to the opener.
* Insert a 5/16"-18x7/8" hex screw into the cover
protection bolt hole in the T-rail as shown. Tighten
securely with a 5/16" lock washer and nut.
NOTE: This screw prevents trolley over-travel.
Keep a 2" minimum between the trolley and this
screw when adjusting travel limits (see page 28).
Washered Screw
5/16"-18xl/2"
Hex Screw
5/16"-18x7/8"
Cover
Protection
Bolt Hole
T-rait
(Back Section)
Lock Washer .f'_'4_
5/16"
5/16"-18
Hardware Shown Actual Size
Hex Screw Nut Lock Washer
5/16"-18x7/8" 5/16" 5/16"
9
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