Справочник Пользователя для Chamberlain security hd200dm

9

To avoid SERIOUS damage to garage door opener, use ONLY 
those bolts/fasteners mounted in the top of the opener.

•  

   Insert a 1/4"-20x1-3/4 bolt into the cover protection bolt 
hole on the back end of the rail as shown. Tighten 
securely with a 1/4"-20 lock nut. Do NOT overtighten.

•  

Remove the two bolts from the top of the motor unit.

•  

Place the “U” bracket, flat side down onto the motor unit 
and align the bracket hole with the bolt holes. Fasten 
with the previously removed bolts.

•  

Align the rail assembly with the top of the motor unit. 
Slide the rail end onto the “U” bracket, all the way to the 
stops that protrude on the top and sides of the bracket.

•  

Attach spreader to the motor unit with two screws.

•  

Lay the chain/cable beside the rail, as shown. Grasp the 
end of the cable and pass approximately 12" (30 cm) of 
cable through the window. Allow it to hang until 
Assembly Step 5.

•  

 Remove the tape from the idler pulley. The inside center 
should be pre-greased. If dry, regrease to ensure proper 
operation.

•  

Place the idler pulley into the window as shown.

•  

Insert the idler bolt from the top through the rail and 
pulley. Tighten with a 3/8" lock washer and nut 
underneath the rail until the lock washer is compressed. 

•  

Rotate the pulley to be sure it spins freely.

•  

Insert a 1/4"-20x1-3/4 bolt into the trolley stop hole in 
the front of the rail as shown. Tighten securely with a 
1/4"-20 lock nut.

Motor Unit
Sprocket

"U" Bracket

Hex Screws 
8-32x7/16" 

Chain
Spreader

Lock Nut

SLIDE RAIL TO STOPS
ON TOP AND SIDES
OF BRACKET

Cover 
Protection
Bolt Hole

Bolt

Bolts

Lock
Washer
3/8" 

 Nut 3/8"

Cable Link

Idler
Bolt

Chain and
Cable

Pulley

Rail

Bolt

Nut

Washer

Trolley

Idler
Pulley

Idler
Pulley

Grease
Inside Pulley

Screwdriver

Trolley
Stop Hole

Bolt

Lock
Nut

Lock Nut

1/4"-20

Bolt 1/4"-20x1-3/4" 

Nut 3/8"

Lock Washer 3/8"

Idler Bolt

Lock Nut 1/4"-20

Bolt 1/4"-20x1-3/4"