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Assembly Step 2
Install the Trolley on the T-rail
• 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.
TemporaryStop
Screwdriver
Trolley
Stop Hole
\
Hex Screw
5/16"-18x7/8"
.ock Washer
, _ 5/16"
/Nut
5/16"-18
• Insert a 5/16"-18x7/8" hex screw into the trolley
stop hole in the T-rail as shown. Tighten securely
with a 5/16" lock washer and nut. This screw limits
trolley travel in the DOWN direction.
Assembly Step 3 I
Fasten the T-rail to the Opener
I
Place the opener on packing material to protect
the cover. For convenience, put a support under
the belt 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 screwsl 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).
Hardware Shown Actual Size
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Hex Screw NUt Lock Washer
5/16"- 18x7/8" 5/16" 5/16"
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.;.:.;.:.:.:.:.:.:.:.:.:.::+:_.:.:.:.:+:.:.:.:.:.:+:;p -.:<.+._:.:5+7...:_:_:_:_:_:_:_:9>_:_:+:_:_`_:_÷_¢_+_+;:_:_:_:_:_>:_>P_:_
To fasten rail, use only those screws mounted
in the top of the opener. Any other screws will
cause serious damage to the opener.
Washered Screw
5/16"-18xl/2"
Hex Screw
5/16"-18x7/8 =
Cover
Protection
Use Or#,
T-rail
(Sack Section)
5/16"
Nut
5/16"-18