AVL Looms Dobby V Series User Manual Download Page 21

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V-Series Dobby Loom User’s Manual

Loom Assembly

Left And Right Side Frame Assembly

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Figure 5 - Right Side of Loom

Dobby Cam/ Pulley Assembly

On the right side of the loom, you will install the Dobby Cam / Pulley

Assembly. This Assembly supports the cables going from the e-lift to the
Dobby.

Find the assembled Right Side Frame. There is a small block (#8)
mounted to #3 and two holes running through parts #3 and #4.
Check that part #3 is loose enough to be pivoted on its axis.

Locate the Cam/Pulley Assembly. Remove the two outside stop
collars from the Axle.

NOTE:

The cam should move freely. Make sure there isn’t any packing material
lodging the Axle in the cam.

Summary of Contents for Dobby V Series

Page 1: ...V Series Dobby Loom User s Manual AVL Looms 2360 Park Avenue Chico CA 95928 6785 U S A 530 893 4915 530 893 1372 fax sales avlusa com www avlusa com Version 2 July 2017 Original Instructions ...

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Page 3: ... 30 Install Beater 38 Installation Of The E Lift II 44 Installation Of The Compu Dobby 52 Install The Warp Beam 54 Install The Shelf 62 Weaving Instructions 63 Warping The Plain Beam 64 Warping The Sectional Beam 72 Combining Sectional And Plain Warping 87 Threading Sleying Tying On 88 Additional Loom Information 95 Loom Maintenance 96 Troubleshooting 98 The Fine Print 103 AVL Customer Service 104...

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Page 5: ...V Series Dobby Loom User s Manual Introductory Information Introductory Information Page 1 INTRODUCTORY INFORMATION INTRODUCTORY INFORMATION ...

Page 6: ...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 ...

Page 7: ...DE 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 Cove...

Page 8: ...strumental in the development of the first computerized dobby then called the Apple Dobby He retired from active life in the company in 1987 We have christened this new V Series Loom in recognition of Jon s contribution to handweaving Once known for our production looms AVL has broadened its line considerably and we now offer customers a full spectrum of fine weaving equipment ranging from our sma...

Page 9: ...ce the correct tension adjustment is made it will be maintained automatically as the weaving is advanced For light fragile warps it may be necessary to use a lighter weight than the one that comes with the loom and for dense heavy warps you may have to add some weight to the arm You can order half size weights from AVL Looms This can be used by itself for very light tension or can be used with the...

Page 10: ...f narrower sections are desired For wider sections remove as many metal hoops as needed There are two things to remember 1 You may only use a Sectional Beam in the upper position 2 You cannot use two warp beams when using a Sectional Beam Plain Beam The Plain Beam is provided with an apron which will allow you to maximize the length of your warp The V series loom allows you to use two plain beams ...

Page 11: ...nclude with the loom will be located in supplementary boxes Looms delivered knocked down will arrive in several boxes of various sizes Please confirm that you received the number of boxes indicated on your copy of the Bill of Lading If any are missing please call the delivery company Shipping Damage Looms are rarely damaged in shipping however if you do discover damage please call the delivery com...

Page 12: ...7 Move the loom to its permanent location 8 Carefully remove the tape from the beater harnesses and all other mechanisms 9 Replace any cables that have obviously been dislodged 10 Carefully check the loom for damage 11 Verify that the loom is setup correctly If anything in the following inspection appears incorrect check the corresponding section 12 Remove the Shelf Retention Pin at the rear of th...

Page 13: ...nt parts Install Beater page 38 g Cloth Advance Handle engages with Cloth Storage Beam Ratchet and advances the beam Install The Cloth Storage Beam page 21 h Brake Pedal s releases tension on cables when depressed Mount The Brake Cable System page 58 14 Replace the shelf Once you have installed the Compu Dobby your loom will be ready to weave The Installation Of The Compu Dobby is covered on page ...

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Page 15: ...V Series Dobby Loom User s Manual Loom Assembly Loom Assembly Page 11 LOOM ASSEMBLY LOOM ASSEMBLY ...

Page 16: ...ver 6 Scissors 7 Crescent Wrench 8 Level a small one will do 9 Occasional Extra Pair of Hands Packed with your hardware are a few additional tools that you may not have Once you ve gathered your tools open all the boxes and lay the contents out just as you find them Please DO NOT REMOVE the tape from any of the components until we tell you Also leave the hardware bags unopened until they are requi...

Page 17: ...ur fingers are too big to comfortably manipulate the nut try holding it with a flat blade screwdriver or needle nose pliers Figure 1 Inserting Nuts Note As you are building the loom do not tighten the nuts all the way down You will tighten everything down once you have squared and leveled the loom as described in Squaring The Completed Frame on page 30 The next two pages show the left and right si...

Page 18: ... You Begin Page 14 Figure 2 Left Side of Loom 2 Front Vertical 5 Rear Vertical 6A Mid Rear Horizontal 11 Bottom Horizontal 12 Mid Vertical 13 Mid Front Horizontal 14 Top Vertical Support 15 Top Horizontal 16 Castle 17 Optional Bracket for second warp beam ...

Page 19: ...egin Page 15 Figure 3 Right Side of Loom 1 Bottom Horizontal 2 Front Vertical 3 Middle Vertical 4 Castle 5 Rear Vertical 6 Mid Rear Horizontal 7 Mid Front Horizontal 8 Handle Stop 9 Top Vertical Support 10 Top Horizontal 17 Optional Bracket for second warp beam ...

Page 20: ...rts that came with the Frame Sort the hardware to make sure that all parts are present and accessible during assembly 2 Put the pieces together as shown in the diagrams for the left and right side 3 Insert the bolts into the holes as shown and attach the nut as described earlier Figure 4 Left Side of Loom Code Bolt type A x 4 HB ASSY B x 3 HB ASSY C x 5 HB ASSY ...

Page 21: ...Assembly supports the cables going from the e lift to the Dobby 1 Find the assembled Right Side Frame There is a small block 8 mounted to 3 and two holes running through parts 3 and 4 Check that part 3 is loose enough to be pivoted on its axis 2 Locate the Cam Pulley Assembly Remove the two outside stop collars from the Axle NOTE The cam should move freely Make sure there isn t any packing materia...

Page 22: ...you can insert the axle from the right side Insert the Axle into the mounting hole and push it through the hole until about 1 2 of the Axle is coming out the other side of 3 4 Pivot 3 back into position so that the free end of the Axle now points to the mounting hole in 4 5 Push the Axle through the hole in 4 centering it between the two verticals On the Axle ends install the Stop Collars to secur...

Page 23: ...m Pulley Assembly Installed CONNECTING THE FRAMES Install The Lower Rear Cross Member In the next stage of assembly you ll attach the cross members that connect the Left and Right Side Frames 1 Please locate Lower Back and the Cross Member Hardware Pack 2 Sort the hardware Select four 3 1 4 hex bolts with square nuts Remove the nuts 3 You will need to pivot both frames forward 90 degrees so that t...

Page 24: ...cate the mounting holes for the Lower Back There will be two mounting holes on each side frame Figure 9 Left side mounting holes Figure 10 Right side mounting holes 5 Insert the four bolts in the holes on the frame but do not push them out the other side 6 Take the Lower Back piece and place it between the two Side Frames at the mounting holes The access holes will face the floor when the loom is ...

Page 25: ...he Side Frames and once the frames are joined further it will be impossible to add the beam 1 Locate the Beam mounting holes in each Side Frame These are about 1 in diameter and lay opposite one another in the Mid Front Horizontals 7 13 The holes are drilled completely through the frames Figure 11 Cloth Storage Beam Hole Left Figure 12 Cloth Storage Beam Hole Right 2 Locate the Cloth Storage Beam ...

Page 26: ...lled in the Right Side Frame Figure 13 Cloth Storage Handle on Block 5 Screw the handle assembly into place in the pre drilled hole on the loom and tighten securely Be sure to hold the Cloth Storage Pawl out of the way when installing the Beam 6 Push the side frames together to hold the beam in place CAUTION Until the Lower Front Assembly is installed take care not to dislodge the Beam You may wan...

Page 27: ...te Lower Front and the Cross Member Hardware Pack 2 Sort the hardware Select four 3 1 4 hex bolts with square nuts Remove the nuts 3 You will need to pivot both frames backward 90 degrees so that they lay on their Rear Verticals 5 Do this in whatever method is most comfortable and safe for you Figure 14 Frames on Rear Verticals ...

Page 28: ...t do not push them out the other side 6 Take the Lower Front piece and place it between the two Side Frames at the mounting holes The access holes will face the floor when the loom is upright 7 Push the bolts into the Lower Front add the nuts and tighten to secure the bolt Final tightening will occur when you square the finished frame Place the loom back upright The remaining assembly will take pl...

Page 29: ...nd carriage bolt Leave the smaller bolt assembly at the end of the pedal in place 3 Find the Left Brake Pedal mounting hole in 16 located near the bottom of the Left Castle Vertical and immediately above the access hole Figure 17 Left Side Brake Pedal Mounting Holes 4 Orient this assembly inside the loom at the mounting hole in the Left Castle 16 with the long end of the pedal pointing to the fron...

Page 30: ...t Side Pedal optional for second beam locate the hole at the bottom of 4 Install as for the left pedal but with the hardware mounted in this order Figure 18 Right Side Brake Pedal Mounting Holes Right Side Pedal Carriage Bolt Side Frame Washer Jamb Nut Hex Nut Washer Brake Pedal Washer Nylock ...

Page 31: ...oden blocks attached 20 has a pulley attached to the block 20 may also have the spring support already attached Figure 19 E lift supports 1 Locate the mounting holes for the Front Cross Member 19 There will be one mounting hole on each side frame 2 Select two attachment bolts and remove the nuts Insert the bolts in their holes in the side frame but do not push them out the other side ...

Page 32: ...g the back of the loom Figure 20 Front Cross Member 4 Push the bolts into the Front Cross Member add the nuts and tighten to secure the bolt 5 Attach the rear cross member 20 in the same way The wooden block should point down All hooks and hardware should face the Front Cross Member 19 The spring support should be on top of the cross member Figure 21 Rear Cross Member ...

Page 33: ...ging it in from the bottom up through the Front Cross Member 19 and the Support The nut and washer will nest in the inset opening Tighten the bolts on both cross members firmly into place Install Central Support Cross Member 1 Locate the Central Support Cross Member 18 and prepare two mounting bolts with washers and square nuts for mounting 2 Position this Cross Member between 3 and 12 just above ...

Page 34: ... will need to adjust the frame slightly by pushing and pulling at the corners until they do match The Frame will then be square 3 Now using a level check the verticals at the corners and the cross pieces at bottom and top Depending on the flooring you may need to use shims under the four corner verticals in order to achieve level 4 Once the loom is square and level check and tighten all bolts and ...

Page 35: ... the right side of the loom and the small plaque with your loom s serial number faces the front of the loom It should overhang about 4 on the right side Figure 23 Harness Pulley Support Assembly 4 Align the four mounting holes in the Pulley Supports with those in the Top Horizontals Figure 24 Left Harness Pulley Holes Figure 25 Right Harness Pulley Holes Note If you are not able to align the holes...

Page 36: ...1 The Dobby Back This is the mechanical side of the Dobby the flat board to which are mounted the Dobby Cables Slide Rods and Slide Plate 2 The Compu Dobby This is the electrical side of the Dobby containing the solenoids and processor that enable the commands from your computer to fire the correct solenoids This is mounted to the Dobby Back for safe shipment in a very special box Please if at all...

Page 37: ...protrude from the back of the Dobby Back If any of these have come loose you ll need to reposition them from inside the Dobby Box Note that each bolt head sits in a recess in the wood Figure 27 Install the Dobby Back 3 Remove the nuts and washers from the mounting bolts and carefully align the Dobby Back over the corresponding holes located in the right side of the loom frame You can drape the bun...

Page 38: ...rts Harness Sticks 1 top 1 bottom per harness Harness Wires 2 per harness Texsolv Heddles 50 per harness Harness Cables 1 with multiple ends per harness Harness Springs 2 per harness 2 The sticks are divided into two groups top and bottom sticks The hooks on the top sticks are closer to the center The hooks in the bottom sticks are closer to the edges 3 Select one top and one bottom stick Lay them...

Page 39: ... Move one heddle out to either end of the harness immediately adjacent to the harness wire These two heddles will be helpful in maintaining the rectangular shape of the harness 7 Repeat these steps to create each harness You can mount each harness as it is assembled to save space by following the instructions in the next section Harness Wire ...

Page 40: ...one It is easier to hang the harnesses beginning at the back of the loom and moving forward Each harness cable has two loops that fasten to the hooks on the harness sticks and one end with a clip that goes to the Dobby Head Figure 29 Harness System with Springs A Harness Pulley Support B Harness Pulleys C Harness Cables D Harness Sticks E Heddles F Harness Springs G Spring Hooks 18 F B E Lift Moto...

Page 41: ...heck that the cable is not twisted on itself this will cause problems when you are weaving 4 Take up an assembled Harness Frame Orient the frame so the hooks that are set closest together are at the TOP of the frame 5 Hook the eyehooks at the top of the frame to the harness cable you just installed 6 Locate two harness springs Fasten one of these springs to the bottom eyehook on the right side of ...

Page 42: ...Beater on page 42 1 Locate the box containing the Beater Assembly Attached to the assembly are bags with mounting hardware Beater Supports 2 Shuttle Race 1 Beater Top 1 Beater Legs 2 Reed 1 Hardware Package 1 2 Locate the two Beater Supports 3 There is one pre drilled hole on each Lower Horizontal 1 and 11 just below and forward of where the Verticals 3 and 12 meet the Lower Horizontals Figure 31 ...

Page 43: ... Remove the lock nut and washer from it and insert the bolt through the right Lower Horizontal 6 Slip the washer and nut back on and tighten the nut just to the point where it almost cinches the two parts together Leave it a little bit loose so that the Beater Support can pivot during adjustment 7 Locate two 1 1 2 long screws located in the beater hardware package Position the metal bracket at the...

Page 44: ...ove that runs along one side should be at the top and facing toward the rear of the loom Figure 34 Beater Leg 10 From the hardware bag choose the four 1 4 x 2 3 4 carriage bolts with washers and hex nuts 11 Now locate the Beater Legs They are marked to show left and right Place the bottom slot of each leg on the center pin of the Beater Support so that the tapered side of each leg faces away from ...

Page 45: ...d tighten only slightly 13 Center your reed in the slot Figure 35 Beater Top 14 Place the Beater Top on the reed so that the groove is facing down and the cut outs at either end are facing toward the rear of the loom 15 Line up the holes in the Beater Top with the slots in each leg and insert the bolts from the front of the Beater Top Attach the washers and nuts and tighten only slightly 16 Center...

Page 46: ...he Beater Top to the legs Note There are three steel pins in the Beater support that allow you to adjust the angle of the race Just lift the beater and replace it over another set of pins Be sure both sides are on matching pins Install the Sliding Beater The sliding beater is optional equipment that replaces the swinging beater If you have chosen a sliding beater for your loom follow the instructi...

Page 47: ...unting holes 4 Apply the square nuts and tighten them most but not all the way down Note To complete the installation of the sliding beater you need a partner If no one is available right now leave the beater as it is and come back to adjust it later 5 Slide the beater all the way forward so that the leather bumpers are equally compressed Hold the beater in this position and tighten the two front ...

Page 48: ...r the harnesses In Install The E Lift Supports And Spring Anchor on page 27 you installed the Interior Cross members 19 and 20 along with the Harness Spring Support see Figure 3 11 There are some hardware and smaller parts secured to these Cross Members These are the e lift supports Install The E Lift II Motor Box 1 From the packaging remove the black E Lift Motor Box and the hardware bag 2 Place ...

Page 49: ...A cable is wrapped around it and sealed down with plastic wrap Remove the wrap and unwind this Cam to Motor Cable 2 There is small cotter pin attached to the end of the cable at the copper fitting Remove it from the cable and keep it safe until it is replaced on the loom 3 Wind the cable over the top of the Cam toward the outside of the loom back around under the Cam and over to the pulley mounted...

Page 50: ...ift II Page 46 Figure 38 End of Cable 5 Pull the tip of the cable out the top of the pulley and replace the small cotter pin at the tip of the cable This will prevent the cable from pulling out and allow for the cable to be taken up and let out from the pulley as it turns ...

Page 51: ...gure 39 Cam Cylinder 2 Manually lift the slide plate that slips up and down on the slide rods mounted to the Dobby Back If you lift it far enough it will pass over the little dobby balls Several of them will act as support for the slide plate 3 When the slide bar is up a large hole located in the center of the bottom plate of the Dobby Back can be seen Slip the loop up through the hole and drop it...

Page 52: ...gure 40 Slide Plate Unpack The Spring And The Return Cord 1 At the bottom of the loom take the spring included with 20 and slip one end of it onto the eyebolt at the tip of the lever 2 Hook the other end of the spring onto the J bolt at the left side of 20 Figure 41 Spring and Return Cable ...

Page 53: ...ghten out the cord Check to see that the Quick Link is vertically aligned and that the cord is coming over the pulley and held in place with the retainer that pivots on the pulley bolt Figure 42 Return Cable 4 Move to the rear of the loom and maintain some tension on the cord as you bring it down the side and under the Return Pulley and over the top of the pulley mounted on the rear E Lift Support...

Page 54: ...the cord to extend it back toward the right side of the loom and the waiting eye bolt Completing Installation Of The E Lift II Now that the cord and cables are installed it is time to check that the Cam and pulleys are aligned to allow for smooth vertical movement 1 Use an allen wrench to tighten all six lock collars securely in place The Cam and pulleys should turn freely but without lateral wigg...

Page 55: ...election The Double Shed mode completes every lifting cycle with the shed open For example assume you ve just completed a shot and the shed is still open You depress the foot switch and the shed closes the Dobby advances to the next pick and the shed opens all as a single continuous movement You ll very quickly develop a rhythm and will find there s ample time to beat while the shed is transitioni...

Page 56: ...ittle black plastic tips on each solenoid appear concave when viewed from above They can be easily turned with a slight touch see Figure 3 21 3 Before proceeding further locate the four mounting holes in the narrow sides of the Dobby Back Behind each hole seen from the interior loom there is what appears to be the head of a standard slotted screwdriver This is the end of the barrel nut that will s...

Page 57: ...r sets of holes and insert one thumbscrew into each Wait until all are installed before tightening completely 6 Prior to tightening press the Compu Dobby flush against the loom castle There is a little bit of play in the holes and the solenoids will perform best if they are positioned correctly 7 Attach the power cable to the Compu Dobby at the plug by the power Switch located on the lower front o...

Page 58: ...tional Beam may only be mounted in the upper position When using two beams at the same time brackets for the second separation beam will need to be attached If you are using a single Plain Beam or a Sectional Beam install it in the upper position 1 Locate your Warp Beam and the axle pockets located on the front edge of the Rear Verticals 5 2 Loosen the little bolts that hold the flat beam retainer...

Page 59: ...ware 6 Slip the handle over the protruding end of the Beam Axle Insert the bolt and secure with the washer and nut Note that the handle is connected with a carriage bolt the head of which must fit into its stamped recess Note Follow the same procedure to mount a second Lower Beam Remember a Sectional Beam can only be mounted in the upper location Installation Of The Breast Beam And Separation Beam...

Page 60: ...V Series Dobby Loom User s Manual Loom Assembly Install The Warp Beam Page 56 3 Place the beam for the upper warp beam in the slots in 5 Figure 48 Breast Beam and Separation Beam Locations ...

Page 61: ...on Beam Brackets They are identical As shown in the diagram these brackets bolt into the top of the back edge of the Rear Verticals Figure 49 Left Side Second Beam Location Figure 50 Right Side Second Beam Location 2 We ve pre installed the mounting bolts in the brackets Remove the square nuts from the bolt ends push the brackets into place and tighten the bolts against the square nuts placed in t...

Page 62: ...ble s and Spring s Figure 51 Brake Cable Locations 2 Brake Cables come in different lengths depending on the type of Beam you re using and its location Each Cable Assembly is individually bagged and marked but if you become confused consult the table below Beam Type Cable Length tip of loop to tip of clip 1 2 Yard Sectional 76 5 8 Upper Plain Beam 53 3 4 Lower Plain Beam 47 5 8 ...

Page 63: ... Use a 7 16 wrench to remove the nut from the bolt in the end of the Brake Pedal then slide the bolt most of the way out 6 Insert the tip of the bolt through the three strands of cord that create the loop with the toggle remaining above the pedal Figure 52 Bolt for Brake Cable 7 Push down on the end of the brake pedal so that you can attach the spring to the same bolt You ll have both the tie up a...

Page 64: ...into the snap hook Note Check again to make sure the cable isn t crossed on itself 11 Use the toggle on the tie up to adjust the tension on the pedal To increase tension pull the two ends of cord away from the toggle To decrease the tension squeeze the buttons on either side of the toggle and move it up and down on the looped ends Figure 53 Brake Cable Toggle Note If the cable is installed in the ...

Page 65: ... these instructions to install it 1 Find the hole in the Rear Vertical 5 and place the pulley on the tension arm so that the holes match 2 Place the bolt in the hole and tighten 3 Take the brake cable from the brake pedal tie up 3 times around the warp beam drum up to the pulley on the tension arm and attach the end to the protrusion on the arm Figure 54 Optional Tension Device ...

Page 66: ...n the shelf is in place These act as Cable Retainers and will keep your Harness Cables properly located during lifting of the harnesses 2 Slide the shelf into the grooves in the Harness Pulley Supports 3 Insert the retention pin into its hole It will and should be tight It will loosen over time 4 If you cannot push the pin all the way into the shelf check that you haven t put the shelf in backward...

Page 67: ...s Page 63 WEAVING INSTRUCTIONS WEAVING INSTRUCTIONS Note Unless otherwise noted the instructions in this section are basic general instructions for weaving and are applicable to many AVL and non AVL looms They should not be regarded as a substitute for training or experience ...

Page 68: ...in which the warp is wound on to the Plain Beam with the use of a Raddle Please study this method and try it We have found that it aids in getting a uniform warp tension especially when dealing with long warps Creating Two Crosses To begin wind the warp on a warping board or reel Make sure you put in two crosses one at each end of your warp 1 The Threading Cross each thread crosses the next thread...

Page 69: ...s limited for wide warps you will end up making a number of mini warps and taking them off individually Adjusting The Tension Before winding on the warp check the tension device to make sure the rope is wrapped three times around the tension drum and that the rope end is clipped to the spring which is held by the Hook Bolt Test that you are able to turn the Beam in a clockwise direction If this pr...

Page 70: ...d clockwise Put your apron on the beam with velcro and wind your beam counter clockwise so that your apron is wound on the beam Attaching The Warp To The Apron Bring the apron around the Separation Beam and put the metal rod through the sleeve at the end You can lash your warp sections onto that rod or you can attach another rod which has been slipped through the loop at the end of the warp with t...

Page 71: ...lease sticks in either side of the Raddle Cross and secure together with string through the holes in the ends of the sticks Now remove the ties from the Raddle Cross and spread the warp out on the sticks Measure the center of your Raddle to use it as a center of your warp The warp threads should either go through the middle of the Raddle or be offset four inches to the right ...

Page 72: ...rs For the most professional results and fewer tension problems we suggest that the warp be as smooth tight and compact as possible This would mean not using corrugated paper or sticks as they will make the warp too soft and or lumpy Corrugated paper is just too soft and the warp can never be wound tight enough with it Heavy wrapping paper works well seventy pound craft paper is good If you are go...

Page 73: ...crank and then go to the back of the loom and jerk one narrow section 2 3 inches in width at a time to make the newly wound warp tight on the beam The idea of this method is that the warp does not need to be under tension all the time but the part that is on the beam has to be tight Make another turn go to the back of the loom and jerk all the sections again and so on If you have a wide warp you m...

Page 74: ...ferent structures 5 Supplementary warp techniques because some warp threads do not interlace as often as others 6 A group of special yarns for selvedges and borders Loops piles or puckers like seersucker 7 More then one layer with different setts in each layer 8 More than one layer with a different pick count in each layer Setting Two Beams The process of setting up a second beam is the same as se...

Page 75: ...he separation beam on the rear verticals The warp from the lower warp beam goes over the separation beam on the additional bracket 3 Proceed with a threading as if you were only working with one beam Follow your threading instructions and take special care which thread from which pair of lease sticks comes next Figure 59 Warp Routing ...

Page 76: ...se fishing weights washers nuts bolts They are not as easily adjustable as water bottles but take less space The closer to the floor you can hang them the less often you need to reposition them WARPING THE SECTIONAL BEAM The AVL Sectional Beam can be warped in sections with the use of a Tension Box The yarn travels directly from cones or spools which are mounted on a rack behind the loom through t...

Page 77: ...to the cords 3 Now double that length and cut it All Extension Cords should be exactly the same length so cut them all at the same time 4 Take the two ends of the cord and knot them together using an overhand knot 5 Wrap the cord around the center bar of the sectional beam with a larks head knot You will also use a larks head knot to secure the warp threads to the extension cord Using a Tension Bo...

Page 78: ... yards per spool we need to know 1 the LENGTH OF THE WARP 2 NUMBER OF SECTIONS on the Beam We calculate the number of sections by dividing the WIDTH OF THE WARP by the SIZE OF THE SECTION If the warp width is 30 and we are using 2 sections our number of Sections is 15 OF YARDS PER SPOOL LENGTH OF THE WARP x OF SECTIONS TOTAL YARDAGE If it is a single color warp or if a color sequence is repeating ...

Page 79: ...Refer to the following diagram to familiarize yourself with the Tension Box and its parts Push down on one of the harnesses until it stops This causes the other harness to go up You will use that later for making a Threading Cross Right now we ll need to use it to help put the heddles on the harnesses 1 Remove the heddle retainer of the harness that is up using a phillips head screwdriver 2 Notice...

Page 80: ...ted on the Mid Rear Horizontals 6 6A Next flip the Separation Beam at the back of the loom exposing the side with the groove in it If you have two Warp Beams and have mounted the second Separation Bar remove it for this process Mount the Tension Box in the groove with the Counter facing into the loom The Tension Box is fastened to the Separation Beam with a small cross piece and wing nuts This wil...

Page 81: ...ugh the Tension Peg section between the larger adjustable Tension Pegs and the smaller stationary Pegs or just above the smaller stationary Pegs if you have removed the larger ones Thread the first end through one heddle on the Front Harnesses nearest to the back plate The next end will go through the first heddle on the rear Harness Repeat this alternating harnesses for the rest of the ends The h...

Page 82: ...ld ends just before the rear stationary reed and pull gently on the old ends until the new ends have come all the way through the box Winding The Warp In Chapter 3 you installed the Brake Tension Device Before winding on the warp Check the tension device to make sure the rope is wrapped three times around the tension drum and that the rope end is clipped to the spring which is held by the Hook Bol...

Page 83: ...justing The Size Of The Section Now slowly wind about one revolution onto the Beam As you wind you will need to fine tune the placement of the Tension Box along the track When it is centered properly tighten down the wing nuts under the Tension Box At this point you can pivot the pivoting reed section so that the yarn comes close to but doesn t quite touch either the hoop to the left or the hoop t...

Page 84: ...th threads in one section since the circumference of the Beam within the section is not going to grow evenly This uneven tension will cause tension problems Counting Turns Or Yardage To determine the length of the warp you are putting on the Beam you need to count either turns revolutions or yards To count turns you can do it in your head but it is more reliable to use a digital or mechanical revo...

Page 85: ... Cross Simply push on the rear Heddle Frame of the Tension Box making half of the threads go up and the other half go down Now slip in an 8 piece of contrasting thread through the opening called a Shed created between the threads above and the threads below Position this Marking Thread about halfway between the Tension Box and the Separation Beam AKA the Breast Beam Now push down on the front Hedd...

Page 86: ... a few feet of warp from each section and slip one lease stick through the path created at one side of each Marking Tie Now slip another lease stick through the path created by the other side of each Marking Tie Secure the lease sticks together leaving about two inches between them using masking tape or string through the end holes of the lease sticks Now bring the lease sticks with the warp ends ...

Page 87: ... different spool placement by moving the spools on the arms 4 Reset the Revolution Counter to Zero 5 Setup Cones with the Cone Caddy Making the First Section 6 Open and secure the raddle top using the removable pin 7 Slide the thread s under the metal catch clip tails facing to the left Tails should be about 5 inches long Figure 65 Catch Thread Ends ...

Page 88: ...66 Wind Counter Clockwise 9 After you have wound one length bring the thread s around the back of the raddle and through a dent working from right to left Figure 67 Bring Thread Through Raddle 10 Bring thread s down over the end you just wound and secure in the silver clip swooping under from left to right Tying Off 11 Put the raddle top back on Cut the bout threads just to the left of the clip an...

Page 89: ...ugh Below wrap the cut threads around the clip Figure 68 Hold Threads at Raddle 13 With the raddle top secure remove the pin from the raddle holder while holding onto the threads Figure 69 Remove Raddle from Top Position 14 Bring the raddle down to the winding on position and secure with the pin Tie a knot in the thread past the raddle so it won t slip through ...

Page 90: ...knotted end of your warp section Figure 71 Place Extension Cord Around Thread Bundle 16 Before the last part of the threads pass through the raddle tape the threads on the loom side of the raddle in their sequence using masking tape This will help you keep the threads in order when you thread the harness 17 As you wind on pivot the raddle to adjust the width of the section to fit exactly in betwee...

Page 91: ... make baby warps for each section on your Beam 3 Make crosses at each end raddle cross on one side and thread by thread cross on the other 4 Take the warp off the board or reel by taking off the thread by thread cross first 5 Put the warp threads from a first baby warp in the Raddle making sure that threads are spread evenly and that they are creating flat layers when wound on the Beam Put the rad...

Page 92: ... threading tie the threading cross sticks in a comfortable and visible position between the Back Beam and the harnesses You may also find it helpful to raise the harnesses To raise all the harnesses turn on the E Lift turn off the double shed action and pedal once It is not necessary to turn on the Compu Dobby at this time It is helpful to remove the Breast Beam and the Beater for further comfort ...

Page 93: ...a new loom with polyester heddles the heddles may stretch out slightly to adjust to the harnesses Sleying The Reed Now sley the warp ends through the reed Some weavers start from the right side some from the left some in the middle But in all cases be sure to measure accurately before starting so that the warp will be centered in the reed or offset four inches to the right if the warp on the beam ...

Page 94: ...the Cloth Beam and towards the harnesses Spread it out flat and center it over the Cloth Beam and insert the metal rod into the loops at the hem Figure 73 Warp Routing Now tie the ends to the metal rod Starting from the middle bring a first bundle toward you over the apron rod then around and under it Divide it in half and bring one half up on each side of the bundle Use the ends to tie a surgeon ...

Page 95: ...the same tension It is important to remember at this point that you are not tying to achieve weaving tension only uniform tension across the width of your warp Attaining weaving tension is what the Cloth Beam Ratchet is for As directed in the preceding warping instructions you ll secure the front of your warp to the Cloth Storage Beam via the apron Use the handle at the right of the Beam to advanc...

Page 96: ...es the same threading pattern and E P I as the last warp This process is especially good for production weavers as it saves time It also takes less concentration and there is less chance of making mistakes in threading The tying on process starts when you are finishing the last warp on the loom Before you cut off the fabric from the old warp make sure to leave enough unwoven warp to extend one foo...

Page 97: ...e tied together go to the front of the loom and gently pull on the bundles of yarn going through the reed to pull the new warp through the heddles and reed You may find that turning small bundles of the warp in a circular clockwise motion will help them through the heddles and reed Then tie on to the apron ...

Page 98: ......

Page 99: ...V Series Dobby Loom User s Manual Additional Loom Information Additional Loom Information Page 95 ADDITIONAL LOOM INFORMATION ADDITIONAL LOOM INFORMATION ...

Page 100: ...he action of your loom Loom Parts Lubrication and Cleaning Shuttles Shuttle Race Single Box Flyshuttle Picker Grooves Paste Wax Slide Rods sliding beater rods bobbin winder Steel Wool Axles pulleys spring levers overhead beater Silicon Spray Warp Beam Metal Rods where metal works against the wood frame Paraffin Warp Beam Brake Drum Sandpaper Checking Cords And Cables The cords and cables on your l...

Page 101: ... air filter which is located on the front of the E Lift II housing To clean unsnap and remove the plastic baffle Remove the foam element and carefully wash it in warm soapy water Be sure the element is completely dry before you replace it Suggested Maintenance For The E Lift II The E Lift II cables may stretch with extensive use To adjust simply push the cable through the Cam Pulley and re tie the...

Page 102: ...rs 1 8 Allen Wrench Level Paste Wax 0000 Steel Wool Pad 220 Sandpaper Paraffin Wax 2 Spare Parts You Might Consider Having Spare Treadle Cable left right 6 length of 350 Braided Dacron Cord for emergency repairs TROUBLESHOOTING Brake Cable If you find that the Brake Cable is not releasing properly even when you ve fully depressed the pedal try releasing a little of the nylon cord from the toggle i...

Page 103: ...ings to help alleviate this problem mounting a second spring on the eyehooks On occasion you will find that one or more of your harnesses will misbehave That is more likely to happen with harnesses with Polyester Heddles There are a finite number of things that can cause these problems Symptom Possible Cause How to Fix it A One or more top harness stick collapses it assumes a diagonal angle and on...

Page 104: ...is greater than the tension in the springs that hold the harnesses down Add a second spring to the harness C One or more harnesses that are supposed to raise don t 1 Left treadle isn t being pressed all the way down Concentrate on getting both treadles all the way through their travel 2 Dobby cables out of finger slots Rearrange the cables according to the assembly instructions D Harnesses don t r...

Page 105: ... the harness sticks has jumped out and got stuck in the heddles of the other harness Pull the wire out make sure it does not catch any heddles and replace it to just connect the top and the bottom harness sticks If you have a large number of extra heddles on each side you might want to tie them in bundles to prevent getting caught by the harness wires ...

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Page 107: ...V Series Dobby Loom User s Manual The Fine Print The Fine Print Page 103 THE FINE PRINT THE FINE PRINT ...

Page 108: ...p it to you Your Compu Dobby is fully warranted for two years If a part wears or breaks during this period we will replace or repair it at our discretion but at no charge to you AVL Returns Policy All goods excepting software may be returned for refund within thirty 30 days of the shipping date A 15 restocking fee will be assessed for all but defective items AVL will pay all shipping costs for def...

Page 109: ...ting to electromagnetic compatibility safety of electrical equipment designed for use within certain voltage limits radio equipment and telecommunications terminal equipment and on the ecodesign of energy related products Compliance is indicated by the CE marking The manufacturer of this product is AVL Looms Inc 2360 Park Avenue Chico CA 95928 USA A declaration of conformity to the requirements of...

Page 110: ...V Series Dobby Loom User s Manual The Fine Print Notice to Users in the European Union Page 106 ...

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