Connect Door Arm To Trolley (Sectional Door) - Craftsman 139.53525SRT Owner's Manual

Installation Step 12
Connect Door Arm to Trolley
Follow instructions which apply to your door
type as illustrated below and on page 27.
Make sure garage door is fully closed. Pull the emergency release handle to disconnect the outer trolley
from the inner trolley. Slide the outer trolley back (away from the door) about 2" as shown in
Figures 1, 2 and 3.
Figure 1:
• Fasten straight door arm section to outer trolley
with a clevis pin. Secure the connection with a ring
fastener.
• Fasten curved door arm to the door bracket in the
same way as shown.
Inner Trolley
Rsitg e r lil I_ Pin
._ Door Straight
B
Clevis P,n _ _ DCUrr\Ar d
Figure
1
Figure 2:
• Bring arm sections together. Find two pairs of holes
that line up and join sections. Select holes as far
apart as possible to increase door arm rigidity.
Lock
/ / II
Washers
/ /
I_ R°pe
5/16"//
"'_._ /t¢,_/ Z'Jk EmergenNuts _ t"_f_ ReleasCY
_/ _5 /lS c!18x7 / 85 / 16"- 1 8 "'_ /_L- ----Handle
Figure 2
Hole Alignment Alternative
Figure 3:
• If holes in curved arm are above holes in straight
arm, disconnect straight arm. Cut about 6" from
the solid end. Reconnect to trolley with cut end
down as shown.
• Bring arm sections together.
• Find two pairs of holes that line up and join with
screws, lock washers and nuts.
Hardware Shown Actual Size
©o
Nut 5/16%18 Lock Washer 5/16" Ring Fastener
O,,,,,,,,,,Dol
Hex Screw Clevis Pin
5/16"-18x7/8" 5/16"xl"
Screws
5/16"-18x7/8"
Figure 3
Proceed to Adjustment Step 1, page 28. Trolley will re-engage automatically when the opener is operated.
26