Connect Door Arm To Trolley - Craftsman 139.3043 Owner's Manual

INSTALLATION STEP 9
Connect Door Arm to Trolley
Follow instructions which apply to your door type as illustrated
below and on the following page.
SECTIONAL DOORSONLY
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 pulley) about 8" (20 cm) as
shown in Figures 1, 2 and 3.
1. Fastenstraight door arm section to outer trolley with the
5/16"x1" clevis pin. Secure the connection with a ring fastener
(Figure 1).
2. Fastencurved section to the door bracket in the same way,
using the 5/16"x1-1/4" clevis pin.
IMPORTANT:Thegroove on the straight door arm MUST face
away from the curved door arm (Figure 4).
3. 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 (Figure 2).
Hole alignment alternative (Figure3):
• If holes in curved arm are above holes in straight arm,
disconnect straight arm. Cut about 6" (15 cm) 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 bolts, lock
washers and nuts.
Pull the emergency releasehandle toward the opener at a 45°
angle so that the trolley releasearm is horizontal. Trolley will
re-engage automatically when opener is operated during the
adjustments.
Nut 5/16"-18 Lock Washer 5/16"
Clevis Pin Clevis Pin
5/16"xl" (Trolley)
HARDWARESHOWN ACTUALSIZE
0
Ring Fastener
ol
5/16"x1-1/4"(Door Bracket)
Hex Bolt
5/16"-18x7/8"
Figure 1
Figure 2
Figure 3
Figure 4
Pulley
i
cm) min. __.),,
Outer
Trolley
Clevis Pin
5/16"x1"
Pulley
Curved Door Arm
" Clevis Pin 5/16"x1-1/4"
Emergency
- Release
Handle
Straight
DoorArm
Bolts
Door Bracket
Pulley
/ !LS" (20 cm) rain. __U
Trolley f
Stop Bolt Lock
Washers _/
11
5/16" /_! 11
Nuts / /_/ 11
Bol
"_ Cut this end
CORRECT INCORRECT
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