Chamberlain 2220RGD 1/2 HP Connect Door Arm to Trolley, Figure, Figure, Figure, •Figure 1:, •Figure 2:, SECTIONAL DOORS ONLY, •Figure 3, Hole alignment alternative:

Connect Door Arm to Trolley

SECTIONAL DOORS ONLY

•Figure 1:

•Figure 2:

•Figure 3, Hole alignment alternative:

INSTALLATION STEP 13

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

ïMake 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" (5 cm) as shown in Figures 1, 2 and 3.

ñFasten straight door arm section to outer trolley with the 5/16"x1" clevis pin. Secure the connection with a ring fastener.

ñFasten curved section to the door bracket in the same way, using the 5/16"x1-1/4" clevis pin.

ñBring 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.

Clevis Pin

Clevis Pin

Clevis Pin

5/16"x1" (Trolley)

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

5/16"-18x7/8"

ñIf 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.

ñBring arm sections together.

ñFind two pairs of holes that line up and join with bolts, lock washers and nuts.

ïPull 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 23. Trolley will re-engage automatically when opener is operated.

HARDWARE SHOWN ACTUAL SIZE

Nut 5/16"-18 Lock Washer 5/16" Ring Fastener

Inner Outer

Trolley Trolley

Ring

FastenerClevis Pin

5/16"x1"

Straight

Door Arm

	Emergency
Door	Release
Bracket	Handle

Curved Door Arm

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

Figure 1

Lock Washers 5/16"

Nuts 5/16"-18

Bolts

5/16"-18x7/8"

Door Bracket

Figure 2

Lock Washers 5/16"

Nuts 5/16"-18

Bolts 5/16"-18x7/8"

Cut this end

Figure 3