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Idiomas disponibles
Idiomas disponibles
ASSEMBLY STEP 4
Fasten the T-Rail to the Motor Unit
• Place the opener on packing material to protect
the cover. For convenience, put a support under
the cable pulley bracket.
• Remove the two 5/16"-18x1/2" washered bolts
mounted in the top of the motor unit.
• Align the holes in the back section of the T-rail with
the holes in the motor unit.
• Fasten the rail with the two washered bolts
previously removed. Tighten securely. Remember
to use only these bolts! Any other bolts will
cause serious damage to the opener.
• Insert a 5/16"-18x7/8" hex bolt into the cover
protection bolt hole in the T-rail as shown. Tighten
securely with a 5/16" lock washer and nut.
NOTE: This bolt prevents trolley over-travel. Keep a
38 mm minimum between the trolley and this bolt
when adjusting travel limits (see page 29).
MODEL 3122E ONLY:
• Attach chain spreader with #8x1" hex screws
and washers as shown.
HARDWARE SHOWN ACTUAL SIZE
Hex Bolt
5/16"-18x7/8"
Lock Washer
Nut
5/16"
5/16"-18
WARNING
CAUTION
To avoid serious damage to opener, ONLY use bolts
mounted in top of motor unit.
Washered Bolt
5/16"-18x1/2"
Hex Bolt
5/16"-18x7/8"
Cover
Protection
Bolt Hole
Rail
(Back
Section)
Lock Washer
5/16"
Nut
5/16"-18
12
USE ONLY THIS
TYPE AND SIZE
BOLT
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