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Connect door arm to trolley, Installation step 12 – Craftsman 139.5399 User Manual

Page 26

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26

INSTALLATION STEP 12

Connect Door Arm to Trolley

Follow instructions which apply to your door type as
illustrated below and on the following page.

SECTIONAL DOORS ONLY

• 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) for 8" (20 cm)
minimum as shown in Figures 1, 2 and 3.

• Figure 1:

– Fasten straight door arm section to outer trolley

with the 5/16"x1" clevis pin. Secure the
connection with a ring fastener.

– Fasten curved section to the door bracket in the

same way, using the 5/16"x1-1/4" clevis pin.

• 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.

• Figure 3, Hole alignment alternative:

– 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 release handle toward the

opener at a 45° angle so that the trolley release
arm is horizontal. Proceed to Adjustment Step 1,
page 28. Trolley will re-engage automatically when
opener is operated.

Trolley
Stop Bolt

8" (20 cm) MIN.

8" (20 cm) MIN.

Trolley
Stop Bolt

Trolley
Stop Bolt

Ring
Fastener

Door
Bracket

Straight
Door Arm

Curved Door Arm

Inner
Trolley

Outer
Trolley

Lock
Washers
5/16"

Nuts
5/16"-18

Door Bracket

Bolts
5/16"-18x7/8"

Cut this end

Emergency
Release
Handle

Lock
Washers
5/16"

Nuts
5/16"-18

Bolts
5/16"-18x7/8"

Clevis Pin
5/16"x1"

Clevis Pin
5/16"x1-1/4"

Pulley

Pulley

Pulley

8" (20 cm) MIN.

Figure 1

Figure 2

Figure 3

Lock Washer 5/16"

Nut 5/16"-18

Ring Fastener

Hex Bolt
5/16"-18x7/8"

Clevis Pin
5/16"x1" (Trolley)

Clevis Pin
5/16"x1-1/4" (Door Bracket)

HARDWARE SHOWN ACTUAL SIZE