Chamberlain 1210E FS2 사용자 설명서

12

• Place the opener on packing material to protect

the cover. For convenience, put a support under
the chain 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.

Model 1220E Only: Attach chain spreader with
#8x1” hex screws and washers as shown.

Washered Bolt
5/16"-18x1/2"

Rail
(Back 
Section)

Cover
Protection
Bolt Hole

Nut
5/16"-18

Hex Bolt
5/16"-18x7/8"

Lock Washer
5/16"

USE ONLY THIS
TYPE AND SIZE 
BOLT

Chain 
Spreader

#8x1" 
Hex Screws

Washers

Nut
5/16"-18

Lockwasher
5/16"

Hex Bolt
5/16"-18x7/8"

To avoid serious damage to opener, ONLY use
bolts/fasteners  mounted in top of motor unit.