Craftsman 139.53403 - Manual (Page 16)

Installation
STEP 10
Connect Door Arm to Trolley
Follow only those instructions which apply to your door type
SECTIONAL DOOR INSTALLATION ONLY
FIG. A. Make sure garage door Is closed tight. Connect
straight door arm section to trolley with a clevis pin. Secure
with a ring or cotter pin fastener{if colter pin is used, spread
to secure.)
Fasten curved sectior^ to door bracket in the same way
FIG.. B. Bring arm sections together. Find two pairs of holes
that line up and join sections
Insert screws from straight arm side Select holes as far
apart as possible to increase door arm rigidity
FIG. C, If holes do not line up as shown in FIG. B.., cross door
arms in scissor fashion.. When one set of holes lines up, insert
screw and 'finger tighten' with a lock washer and nut
Puli the emergency release rope to disengage trolley.
Bring arm sections together and Insert screw into second set
of holes Install lock washer and nut Tighten screws
Proceed to Step 1, Pg. 17, The trolley will re-engage
automatically when opener is operated.
ALL ONE-PIECE DOOR INSTALLATIONS
I#“ Cotter Pin
ASSEMBLE DOOR ARM PROCEDURE: Connect straight
and curved door arm sections together to longest possible
length.. With door closed, connect straight door arm section
todoor bracket with a clevis pin Secure with a ring or cotter
pin fastener (if cotter pin is used, spread to secure)
Door
Bracket
Clevis Pin
Lock
Washers
Nuts
5/16'-18
Screws
5/16"-18 X 7/8
Before connecting door arm to trolley, limits of travel must be adjusted on one-piece doors. Limit adjustment
screws are located on left side panel of opener as shown in illustration on Pg, 17. Follow procedures below
PROCEDURE- OPEN DOOR ADJUSTMENT
Decrease up limit Turn UPilmitadjustmentscrewcounter­
clockwise 4 complete turns.
Press Wall Control button. Trolley will travel to full open
Manually raise door to open position (parallel to floor) and lift
door arm to troliey The arm should touch trolley just in back
of doorarm connector hole as shown in solid line drawing If
arm does not extend farenough, adjust limit further One full
turn equals 2 inches of door travel
PROCEDURE - CLOSED DOOR ADJUSTMENT
Decrease down limit. Turn DOWN limit adjustment screw
clockwise 8 complete turns.
Press Wall Control button. Trolley will travel to full close
Manually close door and lift door arm to trolley Arm should
touch trolley just ahead of doorarm connector hole as shown
in dotted line drawing If arm is behind the connector hole,
adjust limit further. One full turn equals 2 incfies of door
travel
CONNECT DOORARM TO TROLLEY; With door closed, join curved arm to connector hole in trolley with remaining clevis
pin. Secure with ring or cotter pin fastener NOTE: it may be necessary to lift door slightly to make connection.
Run opener throught a complete travel cycle If top of door has a slip'-, oownward' slant in full open position, decrease UP
limits until door is parallel to floor
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