Craftsman 139.53664SRT2 Garage Door Opener User 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 the 5/16"xl" clevis pin. Secure the connection
with a ring fastener.
Fasten curved door arm to the door bracket in the
same way, using the 5/16"xl-1/4" clevis pin.
Inner Trolley
- Clevis Pin
5/16"x1"
Door Arm
Clevis Pin
5/16"x1-1/4"
Curved
Door Arm
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.
Release
Handle
Door Bracket
Screws
5/I 6"-18x7/8"
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 cutend
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"
cevs n Rn° aSteo
Clevis Pin Hex Screw
5/16"x1" (Trolley) 5/16"x1-1/4' (DoorBracke 0 5/16"-18x7/8"
Figure 3
Proceed to Adjustment Step 1, page 28. Trolley will re-engage automatically when the opener is operated.
26