ASSEMBLY STEP 3

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 chain pulley bracket.

•

Remove the two 5/16"-18x1/2" washered bolts

CAUTION

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

 

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 25 mm minimum between the trolley and this bolt when adjusting travel limits (see page 29).

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

HARDWARE SHOWN ACTUAL SIZE

Washers

#8x1"

Hex Screws

Washered Bolt

Chain

5/16"-18x1/2"

Spreader

 

Hex Bolt

 

5/16"-18x7/8"

 

Cover

 

Protection

 

Bolt Hole

 

Rail (Back Section)

Lock Washer 5/16"

Nut 5/16"-18

USE ONLY THIS TYPE AND SIZE BOLT

Hex Bolt

Nut

Lockwasher

5/16"-18x7/8"

5/16"-18

5/16"

12