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  Convert Rug Loom from Mechanical Dobby to Compu

Updated: June 13, 2019 

 

AVL Looms 

2360 Park Avenue 

Chico, CA 95928-6785

U.S.A. 

Introduction 

Converting your Rug Loom from a mechanical dobby to a 
fast and easy process. You will remove the elements of the mechanical 

dobby, including some of the air lines and replace them with the parts that 
came with your new Compu

through before attempting to attach your new Compu

When converting your Rug Loom from a mechanical dobby to a Compu

Dobby, please make sure you observe every safety precaution. 

1)

 

Turn main air off.

Remove Mechanical Dobby parts

To begin, remove all dobby chain advancing 

the order given below. 

1)

 

Remove the stop collars from the ends of the lever pivot posts that 

support the detent lever assembly
assembly (71). 

Convert Rug Loom from Mechanical Dobby to Compu-Dobby  

 

Page | 1  

 

6785 

530 893-4915

530 893-1372 fax 

sales@avlusa.com

www.avlusa.com

Converting your Rug Loom from a mechanical dobby to a Compu

. You will remove the elements of the mechanical 

dobby, including some of the air lines and replace them with the parts that 
came with your new Compu-Dobby. For best results, read the directions 

ng to attach your new Compu-Dobby 

When converting your Rug Loom from a mechanical dobby to a Compu

Dobby, please make sure you observe every safety precaution. 

Turn main air off. 

Remove Mechanical Dobby parts 

emove all dobby chain advancing mechanisms from the dobby in 

Remove the stop collars from the ends of the lever pivot posts that 

support the detent lever assembly (68) and the advancing hook 

 

 

1372 fax  

sales@avlusa.com 

www.avlusa.com 

Compu-Dobby is a 

. You will remove the elements of the mechanical 

dobby, including some of the air lines and replace them with the parts that 

Dobby. For best results, read the directions 

When converting your Rug Loom from a mechanical dobby to a Compu-

Dobby, please make sure you observe every safety precaution.  

mechanisms from the dobby in 

Remove the stop collars from the ends of the lever pivot posts that 

and the advancing hook 

Summary of Contents for Dobby

Page 1: ...g your Rug Loom from a mechanical dobby to a Compu You will remove the elements of the mechanical dobby including some of the air lines and replace them with the parts that came with your new Compu Dobby For best results read the directions ng to attach your new Compu Dobby When converting your Rug Loom from a mechanical dobby to a Compu Dobby please make sure you observe every safety precaution T...

Page 2: ...t lever assembly Unplug the air lines that go to the advancing hook air cylinder Remove the screws that fasten the advancing hook air cylinder mount bracket and the screws that fasten the reversing cord lock Once the screws are removed you will be able to remove the entire advancing hook assembly from the dobby Remove the screws that hold the brackets that retain the dobb chain cylinder onto the d...

Page 3: ...ittings at the harness lift air cylinder and main dobby air valve The new lines will have no T fittings just straight lines from the existing fittings in the valve and the air cylinder 1 Locate the new lines that came with your compu dobby and place them near the loom 2 Locate the lines that run from the main dobby air valve mounted on the inside of the bottom frame member up to the large harness ...

Page 4: ...stment slots where the chain cylinder used to be guiding the ends of new springs into the holes in the Delrin pillow blocks that are fastened to the sides of the Compu dobby 3 Install the new Delrin adjustment brackets where the aluminum adjustment brackets used to be Install the new air pressure regulator You ll need to install the new air pressure regulator in a location on the rear side of the ...

Page 5: ...install a 1 4 air line between the green fittings on the new regulator and the side of the Compu Dobby box Install the new sensor assembly The sensor assembly you received plugs into the RJ45 connector on the Compu Dobby box and the sensors strap onto the large air cylinder below the dobby The sensors are marked up and down 1 Plug in the RJ45 connector 2 Fasten the down sensor and strap onto the a...

Page 6: ...aced in a position that will activate the Compu Dobby solenoids after the metal insert that catches the cable balls has moved above the balls 1 Place the lower sensor 2 above the bottom of the cylinder 2 For the upper sensor watch the dobby cables and slide plate interact while making the sensor adjustment Note Be careful not to over tighten the sensor straps Snug the screw only enough to keep the...

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