KANSAI SPECIAL BLX2202, Instruction

Page 1: ...INSTRUCTION Industrial Sewing Machines BLX2202 BLX2202C BLX2202PC First published September 2003 No 030159 ...

Page 2: ...ne 2 Before starting the machine check to make sure the pulley cover safety cover etc are secured 3 Before adjusting cleaning threading the machine or replacing the needle be sure to turn off the power 4 Never start the machine with no oil in the reservoir 5 Refer to the parts list as well as this instruction manual before performing preventive maintenance 6 The contents described in this instruct...

Page 3: ... length 11 7 3 Differential feed 11 8 PRESSER FOOT 8 1 Presser foot pressure 12 8 2 Position of the presser foot foot lift 12 9 STITCH FORMATION 9 1 Position of the needle thread guides 13 9 2 Position of the thread guide on the needle thread take up 13 9 3 Position of the needle thread guard 13 9 4 Position of the thread guide of the looper thread take up 14 9 5 Position of the looper thread take...

Page 4: ...be sure to turn off the machine A clutch motor continues running for a while after the machine is turned off Therefore keep on pressing the pedal until the machine stops 1 3 Threading the machine Thread the machine correctly by referring to the illustration below Threading the machine incorrectly may cause skip stitching thread breakage and or uneven stitch formation Thread tension should be chang...

Page 5: ...lutch motor Belt M type V belt Select the proper motor pulley according to the machine speed refer to the motor pulley outer diameter on the table below Adjust where to position the motor by pressing the finger onto the middle of the belt so that 1 2cm deflection can be obtained see the illustration on the right Machine speed TYPE MAXIMUM SPEED STANDARD SPEED BLX2202 6000SPM 5500SPM BLX2202C 5000S...

Page 6: ...the oil after the first 250 hours of operation To replace the oil follow the procedures below 1 Remove the V belt from the motor pulley and then remove the machine from the table 2 Remove screw D and then drain the oil Be careful not to stain V belt with the oil 3 After draining the oil be sure to tighten screw D 4 Fill the machine with oil by referring to 3 2 shown above If element E is contamina...

Page 7: ... 4 SEWING MACHINE INSTALLATION 4 1 Cutting the machine table Cut the diagonally shaped area for the C PC type 4 B BL LX Xs se er ri ie es s ...

Page 8: ... the rubber cushions Install the chute for the C PC type see below 5 TIMING OF THE LOOPER TO THE NEEDLES 5 1 Angle and height for installing the looper To obtain the proper angle and height insert the looper fully into looper holder A and then tighten screw B BLX Series Angle 3 Distance at 25mm from the point of the looper between the bottom of the looper blade and the extension line from the poin...

Page 9: ... holding the timing pulley upper by hand 5 3 Looper setting distance Set the looper so that the distance from the point of the looper to the center of the needle bar is 6mm when the looper is at its farthest position to the right The table below shows setting distance A from the point of the looper to the center of the right needle when the needle is at the bottom of its stroke and the looper is a...

Page 10: ...ach needle drops into the center of each needle hole 5 5 Needle looper front to back relationship The point of the looper is 0 5 1mm above the top of the left needle s eye on the back side of the needle when it has reached the center of the left needle With the point of the looper at this position set the clearance between the left needle and the point of the looper at approximately 0 2mm Then the...

Page 11: ...looper moves to the left The needle extremely touches the back of the looper causing needle breakage 5 7 Changing the amount of the looper font to back movement The clearance between the point of the left needle and the back side of the looper when the looper moves to the right from the extreme left end of its travel should be 0 05 0 1mm The clearance between the point of the right needle and the ...

Page 12: ...05mm when the point of the looper has reached the center of the right needle from the extreme right end of its travel When the point of the looper has reached the center of the left needle make sure the left needle does not touch the looper by pressing the left needle backward Then turn the needle guard rear with screw B to set the clearance between the needle guard rear and the needle at 0 1 0 15...

Page 13: ...ed dogs up or down Tilt Remove the cover from the rear side of the bed Loosen screw D from hole C with a 2 5mm hex wrench When the feed dogs are at their top of their stroke the feed dogs should be parallel with the top surface of the needle plate Adjust by turning eccentric pin E with a screwdriver Note When turning the eccentric pin tighten screw D with the pin slightly touching feed bar B while...

Page 14: ...e required position To obtain a feed ratio of 1 1 align lever B with reading C To obtain the normal differential feed raise lever B above reading C To obtain a feed ratio of 1 2 set lever B at 2 Reverse differential feed to stretch seam the fabric To obtain the reverse differential feed lower lever B below reading C To obtain a feed ratio of 1 0 7 set lever B at 0 7 To adjust the differential feed...

Page 15: ...presser bar so that the needle can drop correctly to the center of the presser foot needle drop hole Position of the presser foot Loosen screw A Adjust by moving the presser foot left or right while checking to make sure the needle drops correctly to the center of the presser foot needle drop hole The lift in presser foot is 8mm from surface of needle plate Set stopper B at the required position F...

Page 16: ... and the distance from the center of the shaft to the thread guide of needle thread take up B should be 75mm To make this adjustment loosen screws C and D To tighten the needle thread move needle thread take up to Y To loosen the needle thread move needle thread take up to X 9 3 Position of the needle thread guard When the needle bar is at the bottom of its stroke the center of the eyelet of threa...

Page 17: ...to the front Do not thread the tension disk 9 5 Position of the looper thread take up Thread guide D should be at the center of the groove of looper thread take up A When the point of the left needle has reached 0 5 1mm above the bottom surface of the looper blade while the looper is moving from the extreme left end of its travel the looper thread should be removed from position C on the looper th...

Page 18: ... position by dialing the screw F according to the scale on the front needle plate After that tighten the screw L temporary e Turn the hand pulley to position the needle bar at the bottom of its stroke f Touch the upper knife I with stationary knife G then tighten up the screw on the upper knife bracket C after place the point of the upper knife I in 0 5mm higher than the stationary knife G g Loose...

Page 19: ...he folder C against the center of needle bar then tighten the screw on the folder C b Positioned the point of back side of front presser foot against the center of the folder C by loosen the screw D c Hold the point of folder C between both of guide E 10 5 Adjustment of knife pressure Should be adjusted by dialing the screw A depend on fabrics 10 6 Adjustment of the front presser foot pressure Loo...

Page 20: ... knife a Remove the knife cover base A b Remove the stationary knife B by loosen the screw C then pushing the pressure adjustment dial D c Set the new stationary knife carefully in the stationary knife bracket E The position of the point of stationary knife should be align with surface of the support needle plate Then tighten the screw C In this time the impel of the stopper for the stationary kni...

Page 21: ...osen the screw G to make lower position for the support feed dog H e Remove the cutting device bracket in front A positioning pin is fit the cutting device bracket so that move it off with screwdriver slowly Replacement a Replace the cutting device I b Turn the hand pulley to positioned the needle bar at the top of its stroke then adjust the tip of support feed dog to positioned 1 2mm higher from ...

Page 22: ...e yet be sufficient to feed the fabric smoothly To increase the pressure turn adjusting knob D clockwise To decrease the pressure turn adjusting knob D counterclockwise 11 3 To adjust the feeding amount of the rear puller The feeding amount of the rear puller should be the same as that of the feed dog Loosen nut E To decrease the amount move upward To increase the amount move downward If the prope...

Page 23: ... 2 To remove the timing belt 1 Loosen the eight arm cover set screws and the six oil reservoir set screws see the illustration Remove each part 2 Loosen two screws A Remove the handwheel to the right while turning it slowly see the illustration 3 Remove the pulley plates and bearing in sequence by referring to the illustration Then remove the timing belt from the hole for the bearing 20 B BL LX Xs...

Page 24: ...ng the pulley Bring the needle bar down to the bottom of its stroke by hand 4 Then place the belt onto the timing pulley on the upper shaft Tighten two screws A 5 Bring the needle bar up to the top of its stroke by turning the pulley Check to make sure mark P on the handwheel is aligned with alignment mark O on the bed 6 To make a fine adjustment for the timing of the needle and looper refer to 5 ...