Craftsman 139.53403 Owner's Manual page 8

Assembly
STE P 4 I.stallChain a nd Cable
DO NOT REMOVE CHAIN AND CABLE FROM CARTON
Detach cable from side of carton and fasten to trolley
with a master link from coin envelope
MASTER LINK PROCEDURE: Push pins of master
link bar through loop of cable and hole in flat end of
trolley shaft (A) Push cap over pins and onto notches.
Slide clip-on spring over cap and onto pin notches
until both pins are locked in place,
I=!
install Chain andCable
inThisDirection
Opener
Chassis
Sprocket
/
Caution: Keep chain taut while installing to help
prevent kinking,
With trolley against the screwdriver, dispense cable
around pulley Proceed back around opener sprocket
(B) - be sure sprocket teeth engage chain - and forward
to chain retainer bracket (C).
Use second master link to connect chain to retainer
bracket. Check to make sure chain is not twisted.
A
Pulley
Install Chain and Cable
in This D{recl[on
Master
Link
Clip-On
Spring
Master
Link
Outside
Bar
As a permanent trolley stop, insert 5/16" washered
screw and nut into remaining hole in Tee rail front
Tighten securely REMOVE SCREWDRIVER.
Tab Plate
Slot
C
Th_reo_rde_dsEhndTee Rail _ j Chain
Retaai_eetr ear
End Trolley
Trolley
St°P_H ¢_ 5S/'C r6ewWaan'h _ruetd
\
Remove
Screwdriver
Attach sprocket cover to chassis as shown, Insert
back tab in chassis slot Then bend cover forward and
insert front tab in slot provided on mounting plate