Assernbiy

STE P 2 Install Trolley & Attach Chain Retainer Bracket

As a temporary stop, insert a screwdriver into hole in front end of Tee rail as shown. Slide the

inner trolley onto the Tee rail until it is firmly against the screwdriver

NOTE: If trolley hits against nut on Tee rail, center section was attached from wrong side and must

be repositioned. Review Step 1.

Slide the outer trolley onto the Tee rail until it partially

engages the inner trolley and stops

TO FULLY ENGAGE TROLLEY: With a hammer,

firmly tap the back end of outer trolley just below the rail guide Outer trolley must move forward to fully

Outer Trolley

Inner Trolley

engage inner trolley Be careful to avoid damaging trolley spring,

 

 

 

Outer

 

 

 

Nut

 

 

Lock Washer

._5/16"

 

 

5/16"

r

Temporary

Stop

Inner

 

Nut

 

Screwdriver

Chain

 

 

 

 

Retainer

Cable

 

 

Bracket

 

 

 

Pulley

 

 

 

Bracket

 

Threaded

 

\

End

 

Trolley

Shaft

Flat End

Attach inner nut, lock washer, chain retainer bracket and outer nut to trolley shaft in the order shown_ DO NOT TIGHTEN NUTS UNTIL STEP 5, PAGE 9,

STE P 3 Attach Tee Rail to Opener Chassis

USE ONLYTHOSE SCREWS MOUNTED

IN TOPOFOPEN ER CHASSIS. FAILURE

TO DO SO WILL CAUSE SERIOUS DAM- AGE TO THE DOOR OPENER°

PROCEDURE:

Place opener chassis on packing

ma terial to protect

cover For convenience,

place a

support under the cable pulley bracket

 

Re move 5/16"-18xl/2"

washered screws

mounted

in top of opener chassis Align holes in back end of Tee ran with holes in opener chassis. Fasten the rail

to the chassis with washered screws previously

removed.

CAUTION:

USEONLYTHESESCREWS!

Use

of

any

other screws will

cause

serious

dam-

age

to

door

opener.

Tighten

screws

securely,

insert

a

5/16"-18xl/2"

washered screw into

trolley

stop hole in the Tee rail as shown, Tighten securely with a 5/16" nut

Washered Screw 5/16"-1Sxl/2"

Stop Hole

Tee Rall

(Back Sectior

5/16"-18

7

Page 7
Image 7
Craftsman 139.53610 Assernbiy, STE P 3 Attach Tee Rail to Opener Chassis, To Fully Engage Trolley With a hammer, Retainer

139.53610, 139.53403 specifications

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