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Summary of Contents for Anita Guardan GF-137-443 MH/L38
- Page 1 Operation Manual GF-137-443 MH/L38 GF-137-448 MH/L38 GF-237-443 MH/L38 GF-237-448 MH/L38 ANITA B, s.r.o. Průmyslová 2453/7 680 01 Boskovice Czech Republic tel: +420 516 454 774 fax: +420 516 452 751 e-mail: info@anita.cz...
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Page 3: Table Of Contents
CONTENTS 1. Specification --------------------------------------------------------------------------------------------------------------4 2. Threading of upper thread ------------------------------------------------------------------------------------------- 5 2.1) Threading scheme ----------------------------------------------------------------------------------------- 5 2.2) Threading of upper thread ------------------------------------------------------------------------------ 6 3. Setting upper thread tension --------------------------------------------------------------------------------------- 7 4. Setting thread regulator -----------------------------------------------------------------------------------------------9 5. Winding of hook thread --------------------------------------------------------------------------------------------- 10 6. -
Page 4: Specification
SPECIFICATION Model GF-137-443 GF-137-448 GF-237-443 GF-237-448 MH/L38 MH/L38 MH/L38 MH/L38 Usage Medium and heavy weight materials Systém mazání Automatic No. of needles Thread trimming Hook Large diameter, vertical (bobbin diameter 32mm) Stitch Length Presser foot lift Stitches/minute. Maximum speed (mm) 3500 3200 3000... -
Page 5: Threading Of Upper Thread
THREADING OF UPPER THREAD Threading scheme Single needle machine Double needle machine... -
Page 6: Threading Of Upper Thread
Threading of upper thread - Turn off the main switch! Threading may only be performed if the sewing machine is turned off. Threading of single needle machines - Insert the thread cones on the stand and lead the upper thread through the unwinder arm. -
Page 7: Setting Upper Thread Tension
SETTING UPPER THREAD TENSION... - Page 8 Auxiliary thread tensioner If main tensioner 2 and additional tensioner 3 are open, still, small amount of sub-tension is needed. This sub-tension is regulated by auxiliary tensioner 1. This tensioner, at the same time, controls length of the thread ends after trimming (thread ends for next stitch).
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Page 9: Setting Thread Regulator
SETTING THREAD REGULATOR Turn off main switch. The thread regulator may only be adjusted with the sewing machine switched off. The thread regulator controls the quantity of thread required for stitch formation. The thread regulator must be precisely adjusted for an optimum result. With correct setting the needle-thread loop must slide with low tension over the thickest point of the hook. -
Page 10: Winding Of Hook Thread
WINDING OF HOOK THREAD - Put the thread cone on the thread stand and conduct the thread through the unwinder arm. - Pass the thread through thread guide 1 and tensioner 2. - Pull the thread beginning behind the tear-off knife 3 and tear it off. - Insert the empty bobbin on the winder. -
Page 11: Exchange Of Hook Thread Bobbin
EXCHANGE OF HOOK THREAD BOBBIN Turn off the main switch. Hook thread bobbin may only be replaced if is machine is turned off. Taking out the empty bobbin - Raise the flap 1 and take out the empty bobbin. Inserting the full bobbin - Insert the bobbin 2 in a way that it moves in counter-clockwise direction against the hook when unwinding the thread. -
Page 12: Setting Hook Thread Tension
SETTING HOOK THREAD TENSION Turn off the main switch. Lower thread tension may only be adjusted only if the machine is switched off. Adjustment of tension spring 2 - Set the tension spring 2 by the regulating screw 1. Increase the tension = turn screw 1 clockwise Decrease the tension = turn screw 1 counter-clockwise... -
Page 13: Changing The Needle In 1-Needle Machines
CHANGING THE NEEDLE IN 1-NEEDLE MACHINES Turn off the main switch. Needle may only be changed if the machine is switched off. - Turn the handwhell until the needle bar reached its upper end position - Loosen screw 2 - Take out needle from the needle bar 1. - Insert the new needle properly into the needle bar hole, aligning it so that the needle groove 3 points to the hook. -
Page 14: Changing The Needle In 2-Needle Machines
CHANGING THE NEEDLE IN 2-NEEDLE MACHINES Turn off the main switch. Needle may only be changed if the machine is switched off. - Turn the handwhell until the needle bar 1 reached its upper end position - Loosen screw 3 - Take out needle from the needle bar holder 2. -
Page 15: Lifting Of Presser Feet
LIFTING OF PRESSER FEET Presser feet can be lifted electro-pneumatically by actuating the pedal 2 or by pressing knee lever 1. Mechanic lifting of presser feet (knee lever) - In order to move material, correcting its position, press the knee lever to the right. -
Page 16: Locking The Presser Feet In The Upper Position
LOCKING THE PRESSER FEET IN THE UPPER POSITION - Turn the lever 1 downwards. The presser feet are locked in their utmost upper posiion. - Turn the lever 1 upwards. The presser feet are released. - Lift the presser feet pneumaticaly by the foot pedal or mechanically by the knee lever . -
Page 17: Setting The Presser Foot Stroke
SETTING THE PRESSER FOOT STROKE Sewing machines GF-137/237-series are always equipped with 2 dials for setting the presser foot stroke. Left dial 2 controls standard presser foot stroke in the range of 1 to 9mm. Right dial 1 controls increased presser foot stroke in the range of 1 to 9mm. - Turn the dials 1 and 2 (value 1-9) 1 = minimum presser foot stroke 9 = maximum presser foot stroke... -
Page 18: Setting The Stitch Length
SETTING THE STITCH LENGTH Sewing machines GF-137/237-series are always equipped with 2 knobs for setting the stitch length. This enables operator to sew with 2 different lengths of stitch which can be activated via special key (see following chapter) Stitch length can be set by knobs 1 and 2 on the machine arm. - Upper knob 1 sets longer stitch length Position 1 = minimum stitch length Position 12 = maximum stitch length... -
Page 19: Key Panel On The Machine Arm
KEY PANEL ON THE MACHINE ARM Function Quick presser feet stroke adjustment Light is on = maximum presser feet stroke Light is off = minimum presser feet stroke Additional thread tension Light is on = additional thread tension is activated Light is off = additional thread tension is turned off Second stitch length Light is on:... -
Page 20: Sewing
SEWING Operation steps and sewing functions: Sewing operation Operation / Instructions Before start of sewing: Initial position Pedal at stop position Sewing machine at a halt Needle is up Presser feet are down Place the sewn material at the Press the pedal halfway back beginning of seam Lift the presser feer Place the sewn material under the needles... - Page 21 Sewing of backtack in the middle of Press the lever of the stitch regulator 4 sewing downwards. The machine sews in backwards direction (backtack) as long as the stitch regulator lever is pressed. Required speed is controlled by the pedal. Press the key 3.
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Page 22: Adjustment Of Feeding
ADJUSTMENT OF FEEDING 17.1 Feed position • Turn the handwhell (5) and make the number “0“ on the dial (6) to aim at the mark (8). At this time the feed system is in the state of stilness. In case of error, it is possible to make following adjustments: Loosen the screw (1,4). -
Page 23: Setting Position Of Feed Dog
17.2 Setting position of feed dog Adjust the position of feed dog in the needle plate groove • Loosen the screws (5),(8),(9),(12), move the shaft of feed left and right to keep the feed dog in the centre of needle plate groove (add the picture of needle plate and the feed dog), then tighten the screw (8),(9),(12). -
Page 24: Adjustment Of Feed
17.3 Adjustment of feed • Turn the hand wheel to 190°, press the hand knob of bartacking, no movement of feed shaft. If it moves, loosen the screw (1), change the angles till no movement, then tighten screw • Adjust position of feed in the needle plate, keep the front and back clearance between the feed and plate. -
Page 25: Adjustment Of Feed Dog
17.4 Adjustment of feed dog • Adjust upper and lower position of feed dog, loosen screw (1), to be in the line with the pin (2), then tighten screw (1). • Adjustment of feed dog (3) height against the needle plate (4). Turn the main shaft to 190°, loosen the screw (1), adjust the feed dog (3) to be 0,5mm higher than the... -
Page 26: Position Between Needle And Feed Dog
17.5 Position between needle and feed dog • Loosen the screws (3) and (4) to makr the needle aim at the centre of feed dog. Then tighten the screws (3) and (4). • Loosen the screw (1) to keep the crank rod in the proper position, then tighten the screw (1). -
Page 27: Front And Back Position Of Needle
17.6 Front and back position of needle • For correction of front/back position of needle loosen the screw (3) a move the needle bar (2) to keep the needle in the center of feed dog, then tighten the screw (3). -
Page 28: Adjustment Of The Looper Time
17.7 Adjustment of the looper time • Set the stroke of the feed dog to “0“ on the dial • Move the handwheel to 203° • Turn the large hook (4) to have its top part in the center of needle, then tighten the screw (3). -
Page 29: Needle Position
17.8 Needle position • Loosen the screw (3) and move the needle bar (2) to keep the space between the top side of needle (4) hole and the tip of the hook at 1,5-2mm. -
Page 30: Posotion Between Needle And Hook
17.9 Position between needle and hook • Loosen screws (1),(2) and (4) and move the hook frame (8) to keep the distance between the tip of the hook (5) and the flat of needle concave at 0,05-0,1mm, then tighten the screws(1),(2) and (4). -
Page 31: Setting Of Needle Guard
SETTING OF NEEDLE GUARD • Make sure that there is clearance between needle guard and needle(3), then adjust the gap between the needle concave (3) and the tip (6) of the hook (5) to be at 0,05-0,1mm. Make the needle guard approach the needle through the screw (1). - Page 32 • Turn the hand wheel to 305 degree, tighten the screw (5) with wrench (4) plumbing the bottom side (2). • Loosen the screw (6), turn the unsealing in the inner hook to the proper position, check position: when the main shaft is in 280 degree, the clearance between the hook “A“...
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Page 33: Adjustment Of Trimming
ADJUSTMENT OF TRIMMING • Set the hand wheel to 65 degree, the cam drives the movable knife to the end position. Tighten the screw (8). Loosen the screw (3) and adjust the clearance between cam and shaft at 0,1 mm. Loosen screw (7) and adjust position of shaft (4) to flew freely, but it cant flex when its sewing... -
Page 34: Adjustment Of Knife Position
ADJUSTMENT OF KNIFE POSITION • For adjustment of knife position loosen the screw (3), keep movable knife (1) and fixed knife (2) combine tightly at the distance of 3 mm, thne tighten screw (3). SETTING TENSION OF GRIPPING SPRING • Loosen screw (2) and move the gripping spring (1) and make it combine with movable knife tightly to achieve the best gripping tension. -
Page 35: Maintenance
MAINTENANCE Cleaning work Turn off the main switch. Cleaning can only be carried out if the machine is turned off. The maintenance work must be carried out in accordance with the intervals defined in charts (see column operation period). When using materials which produce a lot of sewing dust, it is possible to use even shorter periods of maintenance. - Page 36 Servomotor Clean the motor fan sieve Remove sewing dust and thread (e.g. by compressed air remains from the openings. gun) Driving unit Clean the motor fan sieve Remove sewing dust and thread (e.g. by compressed air remains from the openings. gun) Check the tension of V- If pressed by finger in the middle,...
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Page 37: Lubrication By Oil
LUBRICATION BY OIL For lubrication of the machine use only oil recommended by manufacturer/supplier or oil with the following specification: - Viscosity at 40°C = 10mm/s - Flash point = 150°C Maintenance work Description Operation period Lubrication of head Machine head is equipped with wick feed oil central lubrication system.
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