ASSEMBLY STEP 3

Fasten the 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.

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

•

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 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 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 1225EM Only: Attach chain spreader with #8x1" hex screws and washers as shown.

HARDWARE SHOWN ACTUAL SIZE

MODEL 1225EM ONLY

MODEL 1220EM

ONLY

Washers

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

#8x1"

Hex Screws

Chain

Spreader

USE ONLY THIS

TYPE AND SIZE

BOLT

Hex Bolt

Nut 5/16"-18 Lock Washer 5/16"

5/16"-18 x 7/8"

12