Connect Door Arm To Trolley (Sectional Door) - Craftsman 139.53662SRT2 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:
Door Arm to Trolley Sectional
• Fasten straight door arm section to outer trolley
New door brkt
with the the 5/16"x1" clevis pin. Secure the
1/96
connection with a ring fastener.
• Fasten curved door arm to the door bracket in the
same way, using the 5/16"x1-1/4" clevis pin.
Outer Trolley
Ring
Fastener
Door
Bracket
Clevis Pin
5/16"x1-1/4"
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
Nut 5/16"-18 Lock Washer 5/16"
Clevis Pin
5/16"x1" (Trolley)
Proceed to Adjustment Step 1, page 28. Trolley will re-engage automatically when the opener is operated.
SECTIONAL Doors Only
Inner Trolley
Clevis Pin
5/16"x1"
Straight
Door Arm
Curved
Figure 1
Door Arm
Hole Alignment Alternative
Ring Fastener
Clevis Pin
Hex Screw
5/16"x1-1/4" (Door Bracket)
5/16"-18x7/8"
Figure 2:
• Bring arm sections together. Find two pairs of holes
Door Arm to Trolley Sectional
that line up and join sections. Select holes as far New door brkt
1/96
apart as possible to increase door arm rigidity.
Washers
Nuts
5/16"-18
Door Bracket
Clevis Pin
5/16"x1-1/4"
Nuts
5/16"-18
26
Inner Trolley
Outer Trolley
Lock
Rope
5/16"
Ring
Fastener
Emergency
Door
Straight
Bracket
Screws
Door Arm
5/16"-18x7/8"
Curved
Door Arm
Lock
Washers
5/16"
Screws
5/16"-18x7/8"
Cut This End
Clevis Pin
5/16"x1"
Release
Handle
Figure 2
Figure 3