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INSTRUCTION MANUAL
MF-7524
Страница 1: ...1 INSTRUCTION MANUAL MF 7524...
Страница 2: ...container thread guide 15 2 Adjusting the rocking thread take up 16 3 Adjusting the rocking thread take up thread receiver 17 4 Adjusting the rocking thread take up thread receiver 18 5 Adjusting the...
Страница 3: ...oke 31 mm 33 mm In the case the eccentric pin is changed over Dimensions Height 451 x Width 515 x Length 263 Weight 46kg Lift of presser foot 4 mm with top covering Micro lifter mechanism is provided...
Страница 4: ...eedle tip silicon oil lubricating unit Oil hole cap Differential lock nut Micro lifter Micro adjustment knob Needle thread silicon oil lubricating unit Finger guard Thread guide No 1 Rocking thread ta...
Страница 5: ...ot insert the power plug of the motor into the receptacle until all works have been completed There is a danger of injury by being caught in the machine WARNING The weight of the sewing machine is mor...
Страница 6: ...Drill a hole at the time of set up B 4 10 5 hole depth 26 spot facing depth 3 5 C 2 3 4 on the bottom surface depth 10 Drill a hole at the time of set up D Drilled hole 17 E Installing position of dr...
Страница 7: ...f motor pulley and lower pulley align with each other For the installing procedure of the motor pulley refer to the Instruction Manual for motor Lower pulley 2 Install the motor so that the pulley rot...
Страница 8: ...he power to the motor and ascertain that the motor has totally stopped rotating before starting the work There is a danger of injury since hands or clothes may be caught in the belt 5 Installing the b...
Страница 9: ...screw shank length 6 mm 2 Install thread guide on thread guide No 1 with screw black screw shank length 6 mm 7 Installing the thread guide 8 Installing the needle bar thread take up cover Install the...
Страница 10: ...between the upper and lower two lines When lubricating oil level lowers below the lower line supply lubricating oil 2 Make sure that lubricating oil comes out from the nozzle of oil circulation ident...
Страница 11: ...ipping Oil used is silicon oil dimethyl silicon Open cover of silicon container and make sure that silicon oil enters needle thread needle tip and silicon oil lubricating unit If silicon oil is insuff...
Страница 12: ...eedle with indented part facing to the rear and insert it into the hole in needle clamp until the end of hole is reached 3 Securely tighten setscrew of the needle WARNING To protect against possible p...
Страница 13: ...f threading is wrong stitch skipping thread breakage needle breakage or irregular stitches will be caused So be careful When using more stretchable thread When covering thread is excessively loosened...
Страница 14: ...ength varies in accordance with kind and thickness of the materials How to change the stitch length Turn clockwise feed regulating knob to increase the stitch length Turn it counterclockwise to decrea...
Страница 15: ...t knob There is a case where feed dogs or feed dog and throat plate come in contact with each other by the aforementioned adjustment according to the relation between the stitch length and the differe...
Страница 16: ...the thread tension with the following thread tension nuts Needle thread tension nut Top covering thread tension nut Looper thread tension nut Turn clockwise to increase the thread tension Turn counte...
Страница 17: ...fix the thread guide rod A B C D 17mm 22mm 28mm 31mm 38 mm 12 mm ADJUSTING THE SEWING MACHINE 1 Adjusting the silicon container thread guide WARNING To protect against possible personal injury due to...
Страница 18: ...the figure 2 Adjust rocking thread take up base so that it is positioned horizontally when the rocking thread take up is in its lowest point and fix it with screw 90mm WARNING To protect against possi...
Страница 19: ...e height according to the kinds of needle thread 5 mm 2 Bring the needle bar to its lowest position loosen setscrew to adjust so that the needle thread comes is contact with the thread receiver of the...
Страница 20: ...the machine be sure to start the following work after turning the power off and ascertaining that the motor is at rest 5 Adjusting the looper thread cam Adjust so that thread comes off from the highe...
Страница 21: ...he following state The lower end face of the thread guide is aligned with the marker dot The right and left thread guide thread paths are levelled A B A B The right and left thread guide thread paths...
Страница 22: ...djustment tighten clamp screw to fix the looper The blade point of the looper comes in contact with the right hand needle when rear needle guard does not work So be careful 0 0 05 mm 3 5 mm 7 Adjustin...
Страница 23: ...plate A 8 9mm B 8 Adjusting the height of the needle WARNING To protect against possible personal injury due to abrupt start of the machine be sure to start the following work after turning the power...
Страница 24: ...left needle so that the clearance between left medium needle and top end of the looper keeps 0 to 0 05 mm when top end of the looper comes to the center of left medium needle at the time of moving of...
Страница 25: ...ight weight So be care ful If it rotates refer to the item 2 Adjusting the rocking thread take up See page 16 2 Do not change the timing other than the aforementioned one since the sewing trouble will...
Страница 26: ...ain feed dog to that of rear end C of differential feed dog and tighten setscrew to fix the differential feed dog It is the standard that throat plate is flush with the feed dog when the feed dog is i...
Страница 27: ...on A comes to the front of left hand needle Then fix the spreader with clamp screw Adjusting the lateral position Adjust so that the distance from the center of left hand needle to section B of the sp...
Страница 28: ...edle clamp thread guide with setscrew 0 8 1 2 mm 0 4 1 0 mm 0 1 0 3 mm 13 Adjusting the spreader thread guide and the needle clamp thread guide WARNING To protect against possible personal injury due...
Страница 29: ...fter according to the sewing condition In the case the micro lifter is not used use the sewing machine with the marker line on the micro lifter collar faced straight up 16 Adjusting the micro lifter W...
Страница 30: ...ighten setscrew No 2 6 Fix feed driving eccentric cam with eccentric cam setscrews No 1 and No 2 while pressing the cam in the opposite direction to its normal movement Check to be sure that the posit...
Страница 31: ...e sure that the pin is in contact with the feed rock eccentric cam section E so as to prevent the screws from loosening Shift to the right E Timing of the feed rock eccentric cam can be advanced from...
Страница 32: ...in feed dog and differential feed dog is 1 6 0 2 mm when the differential feed ratio is set to 1 1 after adjusting the position of the main feed dog When fixing setscrew in the differential feed lever...
Страница 33: ...he lubricating oil every six months 1 Set a container to receive the lubricating oil under drain screw 2 Remove drain screw The lubrication oil is drained 3 After the drain wipe out the oil and attach...
Страница 34: ...n oil filter is clogged with dust replace it with a new one 3 After the replacement fix the filter cap with screws When removing the oil filter cap lubricating oil collected in the filter will leak ou...
