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iii 

SAFETY INSTRUCTINONS

3.1 Unpacking

Be sure to unpack the machine from the top. 
If the machine is packed in a wooden crate, be 
careful of the nails. Remove the nails from 
the board.

Never hold the parts near the needle or 

threading parts when removing the sewing 
machine head from the buffer of the box.
Removing and carrying the sewing machine head 
should always be carried out by two or more people.
Take out the machine very carefully while 
checking the position of the center of gravity.

Preserve the cardboard box and packing material 

carefully in case secondary transport is 
needed in the future.

Disposal of the packaging

The packaging material of the machine consists 
of wood, paper, cardboard and polystyrene foam. 
The proper disposal of the packaging is the 
responsibility of the customer, and must be 
properly disposed of in accordance with the locally 
valid environmental protection regulations.

WARNING

2.6 Items for which the power to the machine 

has to be turned off

Be sure to immediately turn the power off if 
any abnormality or failure is found or in the 
case of power failure in order to protect 
against accidents that can result in personal 
injury or death.
To protect against accidents resulting from 
abrupt starting of the machine, be sure to 
carry out the following operations after 
turning the power off.

● When threading to the parts such as the 

needle, looper, spreader, etc., or when 
changing the bobbin.

● When changing or adjusting all component 

parts of the machine.

● Adjusting the stitch length
● Adjusting the differential feed ratio
● When inspecting, repairing or cleaning the 

machine or leaving the machine.

○ Be sure to remove the power plug by holding 

the plug section instead of the cord section 
in order to prevent electrical shock, earth-

leakage or fire accidents.

○ If the machine is using a clutch motor, to 

protect against accidents resulting from abrupt 
starting of the machine, be sure to carry out 
the above operations after verifying that the 
machine has stopped completely, since the 
motor continues turning for a while even after 
turning off the power supply switch.

3 PRECAUTIONS TO BE TAKEN IN VARIOUS 

OPERATING STAGES

Disposal of the machine waste

The proper disposal of the machine waste is the 
responsibility of the customer, and must be 
disposed of in accordance with the locally valid 
environmental protection regulations.
The materials used in the machines are steel, 
aluminum, brass and various plastics.
A specialist should be commissioned if necessary.

3.2 Transportation

Be sure to take sufficient safety measures to 

prevent falling or dropping when lifting or 
moving the machine.
If the machine and/or your hands are stained 
with oil, the machine may easily fall to the 

floor. Therefore, wipe off the oil carefully.

To prevent accidents during transportation, 
repackage in the same state as the original 
delivery packaging.
Be particularly sure to fully wipe off 
any oil adhering to the machine before 
repackaging.
The machine head should be carried by two or 
more people.
The machine should be carried by people 
only when moving to the table or transfer 

hand truck, and all other transportation 
operations should use a hand truck. When 
moving to the table or hand truck, be 

careful that the machine is not subjected to 

excessive impact or vibrations. Otherwise the 

sewing head could fall over.

When handling the machine, do not carry the 

bottom part of the cloth plate cover.

Содержание CZ8000

Страница 1: ...sing your machine please read the instruction manual and understand the contents well After reading the instruction manual please keep it in a lo cation where it is easily accessible to the operator C...

Страница 2: ......

Страница 3: ...and rotating direction of pulley 6 4 Lubrication 7 4 1 Lubricating oil 7 4 2 Lubricating 7 4 3 Changing oil 8 4 4 Checking and replacing oil filter 8 5 Proper operation 9 5 1 Needle system 9 5 2 Insta...

Страница 4: ...relation between lower looper and upper looper 26 6 7 Needle and needle guards 26 6 7 1 Needle and needle guard rear 26 6 7 2 Needle and needle guard front 26 6 8 Position of presser foot 27 7 Specifi...

Страница 5: ...r any third party mishandles the machine or does not avoid the dangerous situation when operating or maintaining the machine CAUTION This indication is given when there is a potential danger of medium...

Страница 6: ...dents If any of the labels has become stained or come unstuck be sure to replace it with a new one 2 2 Working environment The environment in which our industrial sewing machines are used may seriousl...

Страница 7: ...or leaving the machine Be sure to remove the power plug by holding the plug section instead of the cord section in order to prevent electrical shock earth leakage or fire accidents If the machine is...

Страница 8: ...operly as required by law If you have further questions on its disposal consult the place of purchase After opening the oil container be sure to seal it to prevent dust and water from getting into the...

Страница 9: ...sure to turn off the power Also if the sewing machine malfunctions makes abnormal sound or emits unusual odors while operating be sure to turn off the power supply switch While operating the machine...

Страница 10: ...operate with the eye guard opened Finger guard The finger guard prevents the operator s fingers from going under the needle However there is some space at the top of the finger guard and other section...

Страница 11: ...0 1 Name of each part Fig 1 1 Oil cap Presser foot Drain hole screw Cloth plate Presser foot release lever Finger guard Oil reservoir Eye guard SP device behind Eyeguard Thread tension spring cap Fron...

Страница 12: ...ram 2 Installation Fig 2 1 Center of crank shaft Center of machine pulley operator Installing hole for motor Table dimensions 1200 540 40 mm Section X X Section Y Y Section Z Z Refer to the instructio...

Страница 13: ...Fig 2 2 and 2 3 Table 1 The number of spacers and Size of spacers 15 5 Fig 2 3 2 Installation rubber cushion Fig 2 2 supporting board rubber cushion chute upper support chute supporting board machine...

Страница 14: ...s based on the com mercial pulleys at intervals of 5 Fig 2 4 Table 2 V belt of M type Servomotor Calculate the outside diameter of a motor pulley from the formula as below Or see Table 3 to select a p...

Страница 15: ...e use ALWAYS install the eye guard and the finger guard on the prescribed position dur ing operation 2 3 Hanging belt Use the V belt of M type 1 Hang the belt on the machine pulley and then on the mot...

Страница 16: ...on of pulley The maximum sewing speed is 8000 sti min Run a new machine at speed about 15 20 lower than maximum speed during the first 200 hours for about one month so that a machine can offer a long...

Страница 17: ...a machine which has not been run for a while supply few drops of oil to the needle bar and the looper bar Remove the oil cap indicated OIL IN and supply oil to the upper line of the oil sight gauge Ma...

Страница 18: ...achine on the machine table 9 Hang the V belt on the motor pulley and reinstall the belt cover See page 5 Be careful the oil may spill out from the oil filter when loosening the screw 4 Lubrication 4...

Страница 19: ...e installing the needles ALWAYS turn the mo tor switch OFF and check that the motor has already stopped 1 Loosen the screw with a minus screw driver Fig 5 1 2 Remove the old needle with a pair of twee...

Страница 20: ...tension turn caps counterclock wise Fig 5 4 Threading Table 5 Loosen Tighten Before threading ALWAYS turn the motor switch OFF and check that the motor has already stopped Improper threading can cause...

Страница 21: ...rew clockwise To decrease the pressure turn the adjusting screw counterclockwise Keep the pressure as low as possible for stable stitch Rotate the machine pulley and position the needle at the highest...

Страница 22: ...e left while press ing the lever For closing shift it to the right Make sure that it has been locked securely Loosen the lock nut and adjust the differential feed lever Moving up will make stretching...

Страница 23: ...gth for one stitch Actual stitch length may different from the length on graduations It may changes depending on the application type weight of material or the differential ratio 1 Rotate the pulley w...

Страница 24: ...ic fabric Fig 5 11 SP device Fig 5 12 HR device Use dimethyl silicone oil Check the oil amount in SP tank If not enough supply the oil into the hole Open the oil container plug of HR device and check...

Страница 25: ...re thread correctly Make sure there is no slack Check that the thread hanger is right above the spool seat discs of the thread stands the thread stands should be fixed securely 2 Check the lubricating...

Страница 26: ...et position the center of the screw with the marks To set the standard position of the needle thread pull off align the portion with the eye of the needle thread eyelet right when the needle thread pu...

Страница 27: ...er thread tension for overlock stitch The standard setting of each looper thread eyelet To tighten the thread tension move each thread eyelet or thread pull off in the direction T To loosen the thread...

Страница 28: ...older as desired in the direction N 3 Loosen the screw 4 Tighten the screw with applying the upper knife to the lower knife 5 Loosen the screw 6 The lower knife touches the upper knife closely with it...

Страница 29: ...nife flat type Loosen the screw to install the edge of the lower knife on a level with the top surface of the stitch plate or 0 0 3 mm lower than it Loosen the screw to make the engagement between the...

Страница 30: ...between the upper and the lower knives while rotating the machine pulley by hand If the lower knife cuts badly re sharpen it See Fig 6 9 The upper knife made of super hard alloy is unnecessary to re s...

Страница 31: ...titch plate Make the height between the top of the stitch plate and the rear side of the main feed dog to 0 8 mm when the feed dog is at the highest point Install the auxiliary feed dog 0 5 mm lower t...

Страница 32: ...eight of needle 2 Installation angle of lower looper 3 Fix the distance between needle and lower looper the front and rear position of lower looper temporarily 4 Parallel of needles 5 Front and rear p...

Страница 33: ...and the center of the needle to 3 3 3 8 mm Loosen the screw on the lower looper holder to adjust it 1 Tighten the screw with a tightening torque of 1 5 N m 2 Check the parallel setting of the needles...

Страница 34: ...edle overlock stitch on CZ8020 1 Loosen the screw to make the clearance between the lower looper tip and the left needle to 0 0 05 mm while loosening the screw 2 Make sure that the clearance between t...

Страница 35: ...ort the looper thread eyelet and the looper holder cover 2 Loosen the screw of the upper looper bar crank arm to adjust it The thick portion around eye of the upper looper closes to the needle when th...

Страница 36: ...h is interlocked with the lower looper The needle guard rear holds the needle from the rear and protect the lower looper tip when the needle meets the lower looper tip during upward movement process f...

Страница 37: ...parallel to the stitch plate when looking from the front Slanted presser foot can cause feed scratch mark To set back and forth position adjust the clearance be tween needle drop of the presser foot...

Страница 38: ...Differential Gathering 1 2 3 Available up to 1 3 0 by adjusting the position of the lever pin Max Reverse Differential Stretching 1 0 7 Available up to 1 0 6 by adjusting the position of the lever pin...

Страница 39: ......

Страница 40: ...ted in 2012 9 Printed in China 2012 9 CZ8000 YAMATO SEWING MACHINE NINGBO CO LTD No 641 WEST HENGSHAN ROAD ECONOMIC TECHNICAL DEVELOPMENT ZONE BEILUN NINGBO P R CHINA P C 315800 Tel 86 574 8680 0888 F...

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