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Assembly section, Fasten rail to the unit, Install trolley – Chamberlain 2000SDR 1/2 HP User Manual

Page 6: Assembly step 1, Assembly step 2, Fasten the rail to the power unit, Install the trolley

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ASSEMBLY STEP 1

Fasten the Rail To the Power Unit

6

The Chamberlain Group, Inc.
Screw Drive LM 114A1794
Attaching Rail Assembly & Coupling to Chassis
6/9/94 - 6/18/94 - 10/19/9
12/7/94

Rail

Sprocket

Rail

Assembly

Trolley

Coupling

Rail/Power Unit

Bracket

Lock Nuts

1/4"-20

Power Unit

Sprocket

Opener

Chassis

Foam Packaging

Hex Screws

1/4"-20x5/8"

ASSEMBLY STEP 2

Install the Trolley

As illustrated above, slide the trolley onto and along the
bottom of the rail until it snaps firmly in place.

Be certain

to install it facing correctly: the trolley release arm must
be horizontal (lock position), with its arrow pointed
away from the power unit.

Assembly Section: Pages 6 - 7

1/4" - 20

Lock Nut

1/4" - 20 x 5/8"

Hex Screw

Hex Screw

5/16"-18 x 7/8"

Nut 5/16"-18

Lock Washer 5/16"

Hardware Shown Actual Size

• Working on a level surface, align the rail assembly with

the power unit, as shown.

• Slip the coupling over the rail sprocket.

• Slide the rail through the power unit bracket until the

coupling fits securely over the power unit sprocket.

• Align the two screw holes in the rail with those in the

power unit bracket. Insert two 1/4"-20x5/8" hex screws
and lock nuts. Tighten securely with a 7/16" socket
wrench.

NOTE: To aid in assembly and installation, replace
the foam packing around the power unit. Remove it
after Installation Step 5.

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