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AUTO RECONNECT TROLLEY 

KIT (ARK)

Models MT and T

(1/3 & 1/2HP only)

PACKING LIST 

PART # 

DESCRIPTION 

QTY

10-10203 

Curved arm 

1

10-10204 

Door bracket 

1

10-10205 

Track header bracket 

1

10-10371 

Straight arm 

1

 

Trolley/slide caution label 

2

 

Door opening warning sign 

1

K75-10259 

Track spacer 

2

K75-10387 

Trolley slider (carriage) 

1

K75-10388 

Front idler (chain tensioner) assembly 

1

K75-10406 

Drive link assembly 

1

 

Hardware bag with two #48 master links  1

 

Hex head bolt 3/8-16 X 3/4" 

12

 

Hex head bolt 3/8-16 X 1-1/4" 

3

 

Carriage bolt 5/16-18 X 2" 

2

 

Serrated flange lock nut, 5/16-18 

2

 

Serrated flange lock nut, 3/8-16 

14

 

Nylon lock nut, 3/8-16 

1

1

Instructions to install Auto Reconnect Trolley Kit (ARK). Spring 

loaded trolley features nylon inserts for quiet operation. Auto 

reconnect feature eliminates the need to manually re-attach the 

door arm to the trolley after emergency disconnect.

BEFORE INSTALLATION

•  Refer to disassembly instructions below for all existing 

installations.

•  Refer to owner’s manual provided with operator for all mounting 

and wiring instructions.

•  Refer to backside for pre-assembly instructions of auto 

reconnect trolley kit.

•  Disconnect power to operator.

EXISTING INSTALLATIONS

If this kit is being installed on a existing trolley operator, you will 

be required to disassemble track and operator assembly to allow 

removal of the front idler and the trolley slider.

Ensure you have adequate support of the operator as you 

disassemble. It may be necessary to completely detach operator 

from the overhead supports and reassemble trolley reconnect kit 

at floor level.
1. Disconnect trolley straight arm from door curved arm.
2. Locate master links at either end of trolley slider and disconnect 

drive chain.

3. Remove front idler assembly at the head of the track. Remove 

trolley slider.

To prevent possible SERIOUS INJURY or DEATH, disconnect 

electric power to operator BEFORE installing.
ALL installations and electrical connections MUST be made by 

a qualified individual.

WARNING 

For more information, 

please visit www.devancocanada.com or call toll free at 855-931-3334

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