AVL 16 inch Workshop Dobby Loom User manual

Workshop Dobby Loom
User’s Manual
Figure 1 - 16" Workshop Dobby
Loom
Figure 2 - 24" Workshop Dobby
Loom
AVL Looms
2360 Park Avenue
Chico, CA 95928-6785
800 626-9615
530 893-4915
530 893-1372 (fax)
http:\\www.avlusa.com
e-mail: [e-mail]
May 2018
Revision 1 Instructions
© Copyright 2018
All Rights Reserved Worldwide

Workshop Dobby Loom User’s Manual Introductory Information
Table of Contents Page | i
Introductory Information ................................................................................................................ 1
Safety .......................................................................................................................................... 2
Introduction ................................................................................................................................. 4
WDL Specifications .................................................................................................................... 4
Parts............................................................................................................................................. 5
Tools You Will Need .................................................................................................................. 5
WDL Assembly ............................................................................................................................ 11
Assembly................................................................................................................................... 12
Interchangeable Design Unit (IDU) .......................................................................................... 15
Beater ........................................................................................................................................ 18
Treadles ..................................................................................................................................... 21
Beams ........................................................................................................................................ 23
Compu-Dobby® ....................................................................................................................... 28
Traveling with the WDL ............................................................................................................... 31
Traveling With Your Workshop Dobby Loom ......................................................................... 32
Using the WDL ............................................................................................................................. 37
Warping Section........................................................................................................................ 38
Threading, Sleying, and Tying On ............................................................................................ 50
Weaving Procedures ................................................................................................................. 53
Additional Loom Information ....................................................................................................... 55
Loom Maintenance ................................................................................................................... 56
Troubleshooting ........................................................................................................................ 57
The Fine Print ............................................................................................................................... 63
AVL Customer Service ............................................................................................................. 64
AVL Warranties ........................................................................................................................ 64
Notice to Users in the European Union .................................................................................... 65
TABLE OF CONTENTS

Workshop Dobby Loom User’s Manual Introductory Information
Introductory Information Page | 1
INTRODUCTORY
INFORMATION
INTRODUCTORY INFORMATION

Introductory Information Workshop Dobby Loom User’s Manual
Page | 2 Safety
SAFETY
Before Getting Started:
Please read the entire manual before using the loom.
Warnings:
WARNING:
EQUIPMENT SHOULD ONLY BE USED FOR TEXTILE MANUFACTURING. IF
THE EQUIPMENT IS USED IN A MANNER NOT SPECIFIED BY THE
MANUFACTURER, THE PROTECTION PROVIDED BY THE EQUIPMENT MAY
BE IMPAIRED.
WARNING:
ELECTRICAL SHOCK HAZARD. DO NOT TAMPER WITH ELECTRICAL WIRES
OR OPERATE THE LOOM WITH SAFETY PANELS OPENED OR REMOVED.
WARNING:
PINCH, CRUSH, AND FINGER CUT-OFF HAZARDS. DO NOT OPERATE THE
LOOM WITH SAFETY PANELS OPENED OR REMOVED. DO NOT PLACE
HANDS IN MOVING MECHANISMS OR SCISSORS.

Workshop Dobby Loom User’s Manual Introductory Information
Safety Page | 3
WARNING:
EQUIPMENT PANELS ARE AWKWARD AND HEAVY. TO AVOID MUSCLE
STRAIN OR INJURY, USE PROPER LIFTING TECHNIQUES AND A HELPER.
WARNING:
DO NOT POSITION EQUIPMENT IN A WAY TO BLOCK OR IMPEDE ACCESS
TO DISCONNECTING DEVICES, EMERGENCY STOPS, OR ON/OFF BREAKER
SWITCHES
WARNING:
USE OF CONDUCTIVE FIBER OR YARN ON OR AROUND THIS EQUIPMENT
WILL VOID WARRANTY AND MAY DAMAGE EQUIPMENT.
WARNING:
THIS EQUIPMENT IS CLASSIFIED FOR LIGHT INDUSTRIAL ENVIRONMENT
ONLY. OPERATION OF HIGH-CURRENT DRAW EQUIPMENT (EX. MIG
WELDER) ON THE SAME ELECTRICAL CIRCUITS MAY CAUSE EQUIPMENT
FAILURE.
Safety Features:
Covers and shielding separate weaver from moving components where pinch
hazards exist. Do not reach under covers and shielding while the loom is
operating.

Introductory Information Workshop Dobby Loom User’s Manual
Page | 4 Introduction
INTRODUCTION
Congratulations on your purchase and welcome to the AVL family. Your
Workshop Dobby Loom (WDL) is designed to provide you with years of
enjoyable service. And, with your purchase, you are entitled to AVL’s world
class loom support. Please contact us with any questions at [e-mail]
or 1-530-893-4915.
This manual provides setup and use information for all current WDL loom
configurations, including:
 16” weaving width (16” WDL)
 24” weaving width (24” WDL)
 8, 16, or 24 harness configurations
 Single or double Warp Beam configurations
Please read the entire manual before starting the assembly process. Also,
please note which diagrams and sections are applicable to your loom.
WDL SPECIFICATIONS
Weaving
Width
16” (40.6
cm)
16” (40.6
cm)
24” (61
cm)
24” (61 cm)
No. of Warp
Beams
1 2 1 2
Height 43-1/2”
(110.5 cm)
43-1/2”
(110.5 cm)
43-1/2”
(110.5 cm)
43-1/2”
(110.5 cm)
Width 30-1/2”
(77.5 cm)
30-1/2”
(77.5 cm)
35-1/2”
(90.2 cm)
35-1/2”
(90.2 cm)
Depth 39” (99.1
cm)
46” (116.8
cm)
39” (99.1
cm)
46” (116.8
cm)
Weight 47 lbs. (22
KG)
53 lbs. (24.1
KG)
77 lbs. (35
KG)
83 lbs. (37.7
KG)

Workshop Dobby Loom User’s Manual Introductory Information
Tools You Will Need Page | 5
TOOLS YOU WILL NEED
1. Allen wrench (provided)
2. Socket wrench, with 7/16” socket
3. Wrench (7/16”)
4. Philips screwdriver
5. Hammer (optional)
PARTS
Note:
Items marked with an asterisk (*) indicate that there will be an additional,
identical item if you ordered a two-beam system.
(1) Hardware Bag
(2) Beater Legs
(1) Travel Straps with Handle
(1) Interchangeable
Design Unit (IDU):
harness pulley support,
harnesses, and dobby
Figure 3 - IDU

Introductory Information Workshop Dobby Loom User’s Manual
Page | 6 Parts
(4) X-frame legs (left
and right sets)
Figure 4 - X-Frame Legs (4)
Note:
The X-Frame Legs are marked A, B, C, and
D. The holes for assembly are in different
places on each one. If you ordered a two-
beam system, you will have legs E and F in
place of C and D. These legs are longer.
(2) Center Braces
Figure 5 - Center Brace
(1) Cross Brace, Birch
hardwood plywood
Figure 6 - Cross Brace
(1) Reed Assembly -
includes Reed, Beater
Top and Beater Race
Figure 7 - Reed Assembly
(2) Treadles (left and
right)
Figure 8 - Left (longer)
Figure 9 – Right

Workshop Dobby Loom User’s Manual Introductory Information
Parts Page | 7
(1) Treadle Rod and Stop
Collars (8)
Figure 10 - Treadle Rod and Stop Collars
(1) Cloth Beam with
Ratchet
Figure 11 - Cloth Beam with spacer on
right
(1) Cloth Storage Beam
with Tie-On Rod and
Attaching Cords
Figure 12 - Cloth Storage Beam
Note:
The Cloth Storage Beam comes standard
only with the 24” WDL. If you ordered a 16”
WDL, you will not receive a Cloth Storage
Beam unless it was ordered as an option.
(1) Cloth Beam Ratchet
Handle, aluminum
(1) Cloth Storage Beam
Ratchet Handle,
aluminum
Figure 13 - Ratchet Handle
Note:
You will only receive a Cloth Storage Beam
handle if you received a Cloth Storage Beam.

Introductory Information Workshop Dobby Loom User’s Manual
Page | 8 Parts
(1) Warp Beam with
Brake Drum*
Figure 14 - Sectional / Plain Beam
Note:
To use as a sectional warp beam, insert
metal hoops. To use as a plain beam, remove
the metal hoops.
(1) Warp Beam Handle,
wood*
Figure 15 - Warp Beam Handle
(1) Tension Tie-Up
Assembly for Warp
Beam*
Figure 16 - Tension Tie-Up Assembly
(1) Separation Beam,
solid Ash hardwood*
Figure 17 - Separation Beam

Workshop Dobby Loom User’s Manual Introductory Information
Parts Page | 9
(1) Compu-Dobby
®
with
Cables
Figure 18 - Compu-Dobby

Workshop Dobby Loom User’s Manual WDL Assembly
WDL Assembly Page | 11
WDL ASSEMBLY
WDL ASSEMBLY

WDL Assembly Workshop Dobby Loom User’s Manual
Page | 12 Assemble the X-Frame
ASSEMBLE THE X-FRAME
X-Frame sides:
1) For the left side you will need legs A and B. If you are assembling
the frame for the two-beam version, use legs B and E. Fit the legs
together at the notch in the center
2) Slide a 2-1/2” carriage bolt from the outside through the center
hole at the crossing of the legs.
Note:
The Cloth Beam Bracket is on the inside of the frame.
3) Slide a Center Brace onto the bolt. Install a washer and wing nut,
and tighten to ‘finger tight’ condition.
4) Repeat this process for the remaining four holes using the 2 1/2”
carriage bolts, washers and wing nuts to fully secure the Center
Brace to the legs.
Figure 19 - X-Frame Bolts from
Outside
Figure 20 - X-Frame Bolts from
Inside
5) Tap carriage bolt heads with a hammer until flush to the legs.

Workshop Dobby Loom User’s Manual WDL Assembly
Assemble the X-Frame Page | 13
6) Repeat these steps for the right side using legs C and D. Use legs D
and F for the two-beam frame.
Figure 21 - X-Frame Outside (Left)
Figure 22 - X-Frame Inside (Right)

WDL Assembly Workshop Dobby Loom User’s Manual
Page | 14 Assemble the X-Frame
Cross Brace Installation
IMPORTANT:
The Cross Brace is plywood and should not be confused with the solid wood
Separation Beam.
1) Attach the Cross Brace to the inside of the Right Side and secure
with black thumbscrew (long) from the outside of the leg.
2) Stand the Left and Right Sides approximately 17” apart (for the 16”
WDL) or 25” apart (for the 24” WDL) with Center Braces facing
each other.
3) Secure the Cross Brace to the Left Side with a black thumbscrew
(long) from the outside of the leg.
The X-Frame should now stand without support.
Figure 23 – X-Frame Cross Brace

Workshop Dobby Loom User’s Manual WDL Assembly
Interchangeable Design Unit (IDU) Page | 15
INTERCHANGEABLE DESIGN UNIT (IDU)
Install the IDU
1) Set the IDU onto the Center Braces inside the X-Frame so that the
Dobby is on the right side of the loom.
Figure 24 - WDL with IDU
2) Secure the IDU to the X-Frame using the (4) 2” carriage bolts,
washers and wing nuts.
Note:
As before, the bolts are inserted from the outside through the X-Frame and
through the IDU.
3) Tighten all the wing nuts so that the square part of the carriage bolt
head sinks into the outside of the X-Frame.
NOTE:
A light tap with a hammer on the end of the bolt may be used to help seat the
bolt.

WDL Assembly Workshop Dobby Loom User’s Manual
Page | 16 Interchangeable Design Unit (IDU)
HANGING THE HARNESSES ON THE IDU
Review the lay of the harness cables to make sure that they are arranged on
their proper pulleys. Cable ends should hang freely over the pulleys and
down inside the IDU.
Heddles:
You have been supplied with 25 heddles per harness plus 200 extra. You can
purchase additional heddles from AVL. Heddles are shipped in bundles of
100.
You can divide the bundle of 100 heddles into smaller bundles to place on the
harness. Without removing the original twist-ties, count out the number of
heddles you want on the harness. Place a new twist-tie around each smaller
bundle. Remove the original twist tie and cut the smaller bundles apart.
1) Insert an Eye Hook Retainer Tube over each harness cable loop and
up above the crimped Nico. You will slide the eye hook retainer
back down over the loop once it has been hooked onto the harness
stick.
Figure 25 - Eyehook cover on Harness
2) Lay two harness sticks flat on a table or floor with the screw eyes
facing away from each other.