Connect The Door Arm To Trolley - Craftsman 139.54985 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.
IMPORTANT:Thegroove on the straight door arm MUSTface
away from the curved door arm (Figure 4).
SECTIONAL DOORSONLY
1. Make sure garage door is fully closed. Pull the emergency
releasehandle 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.
2. Fastenstraight doorarm section to outer trolley with the
5/16"xl" clevis pin. Securethe connection with a ring fastener
(Figure 1).
3. Fastencurved section to the door bracket in the same way,
using the 5/16"xl -1/4" clevis pin.
4. 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 (Figure2).
Hole alignment alternative (Figure 3):
• 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-engageautomatically when opener is operated during the
adjustments.
HARDWARE SHOWN ACTUALSIZE
0
LockWasher5/16' RingFastener
Ol c, vis ,
5/16"x1'(Trolley) 5/16"x1-1/4" (DoorBracket)
Nut 5/16"-18
Hex Bolt
5/16"-18x7/8'
Figure 1
Figure 2
Figure 3
Ring
Fastener
O Door
i
Bracket
CurvedDoor Arm
" ClevisPin 5/16"x1-1/4"
_Outer
Trolley
Emergency
Release
Handle
Straight
DoorArm
Pulley
Door Bracket
Bolts
5/16"-18x7/8"
Cut this end
Figure 4
CORRECT iNCORRECT
20