Craftsman 139.53513 Owner's Manual page 7

Assembmy
STE P 2 connect Trolley & Attach Chain Retainer Bracket
, ..... , _,_,,u,,
As a temporary stop, insert a screwdriver into Tee
rail as shown° Siide the inner trolley onto the Tee
rail, as shown, until it is firmly against the screw-
driver 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
engage inner trolley Be careful to avoid damaging
trolley spring
_ Outer TrotleY
_nner Trolley
Temporary Stop
Screwdriver
Cable
PuIley
Bracket
\
Flat End
Outer
Nut
Lock Washer ._//5/16"
Inner 5/1_
Nut _ Chain
Retainer
Bracket
Threaded
End
Trolley
Shaft
Attach inner nut, lock washer, chain retainer bracket
and outer nut to trolley shaft in the order shown.. The
retainer bracket should be kept in the illustrated
position DO NOT TIGHTEN NUTS UNTIL STEP 5,
PAGE 9
@
USE ON LY THOSE SCREWS MOUNTED
IN TOPOF OPENER CHASSIS. FAILURE
TO DO SO WiLL CAUSE SERIOUS DAM-
AGE TO THE DOOR OPENEE
PROCEDURE: Place opener chassis on packing
ma terial to protect cover, For convenience, place a
support under the cable pu[]ey bracket.
Remove 5/16"-t 8xt/2" washered screws mounted
in top of opener chassis. Align hotes in back end of
Tee rail with holes in opener chassis Fasten the rail
to the chassis with washered screws previously
rein eve& CA UTION: USE ONLY THESESCREWS!
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 the per-
manent stop hole in the Tee rail back section as
shown Tighten securely with a 5/16" nut
Tee Rail
(Back Section)
Washered Screw 4
5/16"d 8xt/2" _
Permanent _/
Slop Hole_
Nut
5/16"-18
7