Vi.Be.Mac 3022LV Manual

VI.BE.MAC.S.p.A. 3022LV
Page 1
MAINTENANCE INSTRUCTIONS MANUAL
INTRODUCTION
Thank you for purchasing this VI.BE.MAC. S.p.A. industrial sewing machine.
Before using this automatic unit, please read the following instructions in order to gain a better understanding of how the machine
operates.
The instructions illustrate the correct working method to follow in complete compliance with current legislation.
· No part of this manual may be copied or reproduced without requesting permission from VI.BE.MAC S.p.A.
· The contents of this manual may be subject to changes without prior warning.
In order to request an additional manual or to request clarifications regarding the contents of this manual, please contact:
UFFICIO TECNICO VI.BE.MAC. S.p.A
Via Monte Pastello 7/ I
37047 S.GIOVANNI LUPATOTO (VR)
Tel. [phone]
Fax [phone]
Email: vi.be.mac@ sis.it
We are happy to receive any suggestions and/or comments on ways to improve this manual.

VI.BE.MAC.S.p.A. 3022LV
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CONTENTS
1. GENERAL MACHINE SPECIFICATIONS............................................................................................................................. 3
1.1 POWER SUPPLY................................................................................................................................................................... 3
1.2 WORK STATION.................................................................................................................................................................... 3
2. CONDITIONS OF USE.......................................................................................................................................................... 4
2.1. FORM OF GUARANTEE....................................................................................................................................................... 4
3. ORDER OF OPERATIONS................................................................................................................................................... 5
3.1.BEGINNING CYCLE............................................................................................................................................................... 5
3.2.END CYCLE........................................................................................................................................................................... 5
4. STARTING UP THE MACHINE............................................................................................................................................. 6
5. STOPPING THE MACHINE .................................................................................................................................................. 6
6. MACHINE ROTATION DIRECTION...................................................................................................................................... 6
7. SETTING SEWING SPEED - POSITIONING........................................................................................................................ 6
Adjust on the basis of the machine type – normally 3700 revs ................................................................................................. 6
8. LIST OF ERRORS................................................................................................................................................................. 6
9. SETTING CHAIN STITCH CUTTING PARAMETERS .......................................................................................................... 7
10. SETTING THE PULLER LIFTING PARAMETER.................................................................................................................. 8
11. FINAL AUTOMATIC CYCLE END STOP.............................................................................................................................. 9
On the fourth place we have a number ..................................................................................................................................... 9
12. MEMORIZING THE SETTINGS IN THE PANEL (BACKUP)............................................................................................... 10
13. RESETTING THE PANEL MEMORY (RESET)................................................................................................................... 10
14. INPUT / OUTPUT TEST...................................................................................................................................................... 11
15. ADJUSTING THE SEWING HEAD...................................................................................................................................... 15
15.1 NEEDLE BAR HEIGHT ...................................................................................................................................................... 15
15.3 POSITION AND HEIGHT OF NEEDLE BAR THREAD TAKE UP...................................................................................... 16
15.4 NEEDLE BAR MOVEMENT CAM ...................................................................................................................................... 17
15.4.1 POSITION.................................................................................................................................................................... 17
15.4.2 MOVEMENT LENGTH................................................................................................................................................. 17
15.5 NEEDLE BAR PENDULUM HEIGHT ................................................................................................................................. 18
15.6 CROCHET HOOKS START MOVEMENT CAM................................................................................................................. 19
15.6.1 POSITION.................................................................................................................................................................... 19
15.7 CROCHET HOOK – NEEDLE DISTANCE......................................................................................................................... 21
15.8 LOOP WIDENING PHASE ................................................................................................................................................. 21
15.8 LOOP WIDENING PHASE ................................................................................................................................................. 22
15.8.1 POSITION.................................................................................................................................................................... 22
15.8.2 MOVEMENT LENGTH................................................................................................................................................. 23
15.8.3 LOOP WIDENING MOVEMENT PIN POSITION......................................................................................................... 24
15.8.4 LOOP WIDENING UNIT POSITION ............................................................................................................................ 24
15.8.5 LOOP WIDENING UNIT PIN POSITION...................................................................................................................... 24
15.8.6 LOOP WIDENING UNIT PIN HEIGHT......................................................................................................................... 24
15.9 CLAMP MOVEMENT CAM................................................................................................................................................. 25
15.10 TIP LENGTH..................................................................................................................................................................... 26
15.10.1 MECHANICAL VERSION........................................................................................................................................... 26
15.11 ADJUSTING THE CLAMP HEIGHT: ................................................................................................................................27
15.11.1 CLAMP POSITION WITH RESPECT TO THE NEEDLE PLATE............................................................................... 27
15.12. ADJUSTING THE LOWER THREAD PULLER................................................................................................................ 27
16. CLEANING.......................................................................................................................................................................... 28
17. LUBRICATION .................................................................................................................................................................... 28

VI.BE.MAC.S.p.A. 3022LV
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1. GENERAL MACHINE SPECIFICATIONS
The Unit VI.BE.MAC. 3022LV is a VIBEMAC sewing head flat base unit with Feed Dog and Needle Feed to sew a waist band to a
trouser piece by piece.
On the unit is install an Auxiliary Pneumatic Puller device drive by ZEROMAX and a special Trim Chain Cutter device makes from
two blades move by two pneumatic cylinders.
The unit utilises a MITSUBISHI XL-CE 554W Servomotor and the follows functions; Chain Cutter, Puller Lifting and Automatic
Sewing Stop Functions are controlled by the Motor Panel FMFY type.
1.1 POWER SUPPLY
The unit operates on a power supply of 220 V single-phase, 50/60 Hertz. It consumes approx. 600 watts.
1.2 WORK STATION
The operator sit in front of the unit’s work surface with:
· The pedal to control the sewing speed near the feet at the base of the standing (1)
· The Folder (2), that folds the waist band is in front.
· the Main Power switch (3) is on the right side under the table near the drawer.
· The Sewing head with Presser Foot and Needles and working area (4) and the Photo Cell in front after the Folder.
1
2
3022LV head
4
3

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2. CONDITIONS OF USE
“Normal” operation includes all those operations for the preparation and application of waistbands onto trousers, respecting the
following conditions:
· the operator must first have read and fully understood all parts of this manual.
· the operator must abide by all the instructions in this manual and "CE" regulations.
· the maximum width of the waistband must be 103mm for a 1"1/2 Border Unit and 93mm for a 1"1/4 Border Unit or 100mm for a
Border 1” 3/8.
· the material thickness of the trousers where the waistband is to be applied must not be greater than 6 mm.
· all safety regulations must be respected; safety covers and devices installed by the manufacturer must not be removed.
· the electrical supply must be constant.
· the machine must be earthed to prevent disturbances and electric shocks.
· the machine must not be used in continuous cycle, by blocking the control pedal in any position
· the machine must not operate at high temperatures (above 40°c) or low temperatures (below 10°c).
· water or other liquids (with the exception of oil) must not get into the sewing machine.
· water or other liquids must not get into the control panel, solenoid valves and cylinders.
· the automatic unit must not be used in areas where there is explosive gas, powder or oil vapours.
· the machine must not be connected to a compressed air circuit containing water or other liquids in the pressure circuit.
· the machine must be connected to a compressed air circuit with a constant minimum internal pressure of 5.5 bar.
· the operator must use soundproof earplugs to prevent damage to the ear.
· installation of the machine and extraordinary maintenance must be performed by qualified personnel.
The manufacturer declines any responsibility for damage to persons or things caused by the machine in cases where:
· the unit is not properly installed on an even surface.
· Installation of the machine is not performed by qualified personnel
employees or technicians are not.
· eventual repairs (Mechanical and/or Electronic) of the machine are not performed by qualified personnel.
· the electrical supply is not constant.
· the air pressure in the pneumatic circuit is not constant and/or the quality of air does not satisfy the requirements.
· routine maintenance of the unit is not performed as required.
· non-original spare parts or parts which are not specified for the model are used.
· there is a partial or total lack of observance of the instructions on the part of the operator.
· the operator has been working with broken or unsuitable needles, thereby ruining the trousers.
· exceptional circumstances apply.
In no circumstances:
· remove the safety covers and devices from their position, thereby making the machine dangerous for the operator.
· remove the eye protection shield without supplying the operator with special eye protection glasses in compliance with current
regulations.
· deactivate the safety devices provided by the manufacturer, thereby making the machine dangerous for the operator.
· modify the machine, without authorisation from the manufacturer, thereby making the machine dangerous for the operator.
2.1. FORM OF GUARANTEE
A guarantee of 01 (one) year will be applied to all parts that make up the unit, when delivered to the manufacturer and found to be
defective. The guarantee is not applied for parts of normal use (example: Oil – Needles – Blades).
All parts damaged through improper use by the operator, and/or improper adjustment of the unit by technical personnel
not qualified by VI.BE.MAC., will NOT be considered as defective by the manufacturer. These will be charged for, including
all transport costs and/or subsequent installation costs.

VI.BE.MAC.S.p.A. 3022LV
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3. ORDER OF OPERATIONS
3.1.BEGINNING CYCLE
1) The operator insert the waist band inside the Straight Folder up to the waistband exits from if for about 3cm.
2) Inserts inside it the begin of the trouser and folds the front edge by fingers, after that inserts under the presser foot this
material, pushing forward the Folder near the Presser Foot in the same time.
3) The Photocell reads the material and the operator can now starts to run on the material keeping press the pedal on the
main motor.
The unit begins the seam cycle, after that “COC” stitches counter has arrived to the setting number it is
executed the chain cutter cycle and the Puller it is raised in the same time.
The Sequence Points K21 keep lift the Puller while the units runs for the follows stitches and after the setting number the Puller it is
lowered on the material.
3.2.END CYCLE
1) The operator when arrives near at the last 5cm of material stops the cycle, pull backward the Folder and insert in the
waistband the special pneumatic cutter
2) Push the button on the pneumatic cutter and makes the waistband cut at the correct length
3) Folds the final waistband edge by fingers and press again the pedal on the main motor keeping press it to finish the seam.
The unit automatically will stops at the correct position, the Puller keeps the material pulls to make properly the chain stitch
seam out of the material.
The Operator takes out the portion of waistband that remains inside from the Straight Folder and after that starts with a new cycle.
During this cycle after the Chain cutter the Operator will download the material from the unit.

VI.BE.MAC.S.p.A. 3022LV
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4. STARTING UP THE MACHINE
Open the air tap by moving it to the right. Release the “EMERGENCY” button.
Power the machine by pressing the black button, located on the front of the unit support.
5. STOPPING THE MACHINE
Follow the procedure below:
ALWAYS press the “EMERGENCY” button in order to stop the automatic unit.
Close the air tap by positioning it in the central “OFF” position.
6. MACHINE ROTATION DIRECTION
The sewing head rotation direction is automatic.
7. SETTING SEWING SPEED - POSITIONING
The following appears on the control panel display:
2 – 9 9
Press the up  and down arrows at the same time.
The following will then appear on the display:
P - P (P mode)
Keep the two buttons pressed down until this changes to:
H. - - - - = Max. speed setting
Use button D to change the units
Use button C to change the decimals
Use button B to change the hundreds
Use button A to change the thousands
Adjust on the basis of the machine type – normally 3700 revs
Press the down arrow.
The following will appear on the display:
L. - - - - = Minimum speed setting
Use button D to change the units
Use button C to change the decimals
Use button B to change the hundreds
Use button A to change the thousands
Adjust to the value 220
Press the up and down arrows at the same time in order to exit this mode
8. LIST OF ERRORS
E 1 Check whether the motor power connector is correctly inserted
E 2 Check the voltage (overvoltage)
E 3 Check whether the synchronizer connector is correctly inserted in the panel – Make sure that the machine is not jammed –
Check whether the encoder connector is correctly inserted in the panel
E 4 Check whether the 4-pin connector is inserted in the motor (Thread Breakage)
E 6 Problem with INPUT signals (noise). Make sure that there is no interference in the software input signals.
E 8 Make sure the machine is not jammed – check whether the synchronizer is connected
E 9 Make sure that none of the solenoid valves have short-circuited

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9. SETTING CHAIN STITCH CUTTING PARAMETERS
The following appears on the control panel display:
2 – 9 9
Press the up and down arrows and button Bat the same time.
+ + B
The following will then appear on the display:
P - F (F mode)
Keep the two buttons pressed down until this changes to:
CO C. x x Setting number of stitches in the Initial Cut Counter (standard value 3). Increasing the
value makes the cut shorter.
Use buttons C and D to enter the desired number of stitches, from when the material end is detected by the photocell.
Press the down arrow when the following appears on the display:
SD. x x Setting Cut Impulse duration. (standard value 20)
Use buttons Cand Dto enter the desired value.
Press the up and down arrows at the same time in order to exit this mode
Chain Cutter
ON
SD
Photocell
ON
COC
Photocell

VI.BE.MAC.S.p.A. 3022LV
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10.SETTING THE PULLER LIFTING PARAMETER
The following appears on the control panel display:
2 – 9 9
Press the down arrow , button Band button Dat the same time.
+ B + D
The following will then appear on the display:
P - S (S mode)
Keep the two buttons pressed down until this changes to:
K s m. o f (S mode)
Press the down arrow until the following appears on the display:
K11. x x Setting number of stitches to start to enable the Puller Lift . Standard value 0
Use buttons C and Dto enter the desired number of stitches
Press the down arrow when the following appears on the display:
K12. x x Setting number of stitches to keep lift the Puller. Standard value 10
Use buttons C and D to enter the desired number of stitches
Press the up and down arrows at the same time in order to exit this mode

VI.BE.MAC.S.p.A. 3022LV
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11.FINAL AUTOMATIC CYCLE END STOP
On the control box appears on the display:
2
–
9 9
Press the UP arrow key one time
On the control box appears on the display:
b x x _ _
On the first and second place we have a symbol and a number but they are not used
On the third place we have a symbol
(x = symbol)
b _ _ x _
Change the value from OFF to ON by Ckey to able the automatic stop function.
Inserted the function it appears the following symbol ON = 
On the fourth place we have a number
b _ _ _ x
It determines the slow down final stop type. Please set it always to the number 2 (TWO)
Press the UP arrow key one time, on the control box appears on the display:
M _ _ X X
(Insertion of the number of slow end stitches)
On the first and second place we have a numbers but they are not used.
Set how many stitches you need for the slow end stop function by the Cand Dkeys.
Increase the number to stop later or reduce the number to stop earlier by C and D keys
Please set it normally to the number 3 and 3
In this case the unit will be stops after 3 + 3 = 6 SIX stitches from end material detection by the Photocell. Normally the material
stops exactly when it exit from Presser Foot end
Press down and upper arrows keys in the same time together to go out
+ 
On the control box appears on the display:
2
–
9 9

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12. MEMORIZING THE SETTINGS IN THE PANEL (BACKUP)
Switch the machine on by pressing the down arrow and buttons A and C at the same time.
Switch on + + A + C
The following will then appear on the display:
P - q (q mode)
Keep the THREE buttons pressed down until this changes to:
U C S. o f
Press the up and down arrows at the same time in order to exit this mode
+
The following appears on the control panel display:
2
–
9 9
IN THE MOTOR PANEL
Switch the machine on by pressing the down arrow and buttons A, B and Dat the same time.
Switch on + + A + B + D
The following will then appear on the display:
P - u (u mode)
Keep the buttons pressed down until this changes to:
B a c k u
p
Press button D in order to start the copy cycle. It normally takes around 5 seconds to transfer all the data.
If the following message appears
M - 5
switch the machine off and repeat the operations described above.
13.RESETTING THE PANEL MEMORY (RESET)
The following appears on the control panel display: WARNING: If this operation is
carried out, the next time the
machine is switched on the panel
memory will either be programmed
with the standard basic type
(280M) or with the programmining
entered by the Backup operation.
2
–
9 9
Press the down arrow and button B and C at the same time.
+ B + C
The following will then appear on the display:
P - r (r mode)
Keep the THREE buttons pressed down until this changes to:
R E S E T
Press button Din order to start the resetting cycle and keep it pressed down until the writing flashes three times.
The following appears on the control panel display:
2
–
9 9

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14.INPUT / OUTPUT TEST
The following appears on the control panel display:
2 – 9 9
Press the up and down arrows and button Aat the same time.
The following will then appear on the display:
P - E (E mode)
Keep the two buttons pressed down until this changes to:
1. E - -
The machine’s last error message will appear on the display
Press the down arrow
The following will then appear on the display:
2. E - -
The machine’s penultimate error message will appear on the display
Press the down arrow
The following will then appear on the display:
3. E - -
The machine’s third from last error message will appear on the display
Press the down arrow
The following will then appear on the display:
4. E - -
The machine’s fourth from last error message will appear on the display
Press the down arrow
The following will then appear on the display:
P. - - - - Effective motor running time in hours
This value should be multiplied by ten (Total hours = n x 10)
Press the down arrow
The following will then appear on the display:
M. - - - - Effective motor rotation time in hours
This value should be multiplied by ten (Total hours = n x 10)
Press the down arrow

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Display of all the INPUT TEST INPUTS present (from A to P, from 1 to 7) with the possibility to test them manually (BY
RUNNING YOUR FINGER UNDER THE PHOTOCELLS)
The following will then appear on the display:
I A. O FA input parameter = OFF
The INPUT value (ON/OFF) of parameter 1is displayed.
By changing the relative input logic state (pedal – switch – sensor – photocell) the value changes from off to on.
The normal factory-set parameters are as follows:
FUNCTION INPUT PARAMETER DISPLAY
Please ask at the Technical Office the parameter
Press the down arrow in order to proceed to a review of the desired parameters
The following appears on the display at the end of the list:
I 7. O F7 input parameter = OFF
The INPUT value (ON/OFF) of parameter 7 is displayed.
Press the down arrow
The following will then appear on the display:
ECA. X x Encoder motor phase A input parameter
The INPUT value (ON/OFF) of parameter E C A is displayed.
When the machine is sewing, the value constantly changes between ON and OFF.
Press the down arrow
The following will then appear on the display:
ECB. X x Encoder motor phase B input parameter
The INPUT value (ON/OFF) of parameter E C B is displayed.
When the machine is sewing, the value constantly changes between ON and OFF.
Press the down arrow
The following will then appear on the display:
UP. O N HIGH thread-puller position sensor reading input parameter
NB: as the feed unit is with the needle tip, UP must be ON when the needle bar is at
bottom dead centre
The INPUT value (ON/OFF) of parameter UP is displayed.
Turning the machine synchronizer makes it possible to change it from on to off and vice versa.
Press the down arrow
The following will then appear on the display:
D N.O F LOW thread-puller position sensor reading input parameter
NB: as the feed unit is with the needle tip, DN must be ON when the needle bar is at top
dead centre
The INPUT value (ON/OFF) of parameter DN is displayed.
Turning the machine synchronizer makes it possible to change it from on to off and vice versa.
Press the down arrow
The following will then appear on the display:
D R.O F LOW needle reading current position angle
The INPUT value (ON/OFF) of parameter DR is displayed.
Turning the machine synchronizer makes it possible to change it.
Press the down arrow
The following will then appear on the display:
P D.X X X Numerical value equivalent to the voltage given by the variable speed parameter VC with
footboard lowered. Reading field from 000 to 3FF
Press the down arrow
The following will then appear on the display:

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VC.X X X Numerical value equivalent to the voltage given by the variable speed parameter VC with
OPTION B connector. Reading field from 000 to 3FF.
Press the down arrow
Display of all the signals sent from the CPU to the OUTPUTS. While the machine is operating, it is possible to see the
function and the signal changing from OFF to ON and vice versa.
The following will then appear on the display:
O AD.O Foutput signal 0 A = THREAD PULLER OFF
The OUTPUT signal value of the 0 A d parameter is displayed.
The normal factory-set parameters are as follows:
FUNCTION PARAMETER DISPLAY
Please ask at the Technical Office the parameter
Press the down arrow in order to proceed to a review of the desired parameters
WARNING: outputs 04, 05, 06 and 07 are not solenoid valve output signals. These signals are also on dual function INPUT –
OUTPUT ports.
Press the down arrow
Display of all the OUTPUTS (TEST OUTS) with the possibility to test them manually by pressing button D on the
console.
The following will then appear on the display:
O AO.O Foutput signal 0 A = THREAD PULLER OFF
The OUTPUT signal value of the 0 A d parameter is displayed.
Press button Din order to change the value from OFF to ON.
The normal factory-set parameters are as follows:
FUNCTION PARAMETER DISPLAY
Please ask at the Technical Office the parameter
Press the down arrow in order to proceed to a review of the desired parameters
WARNING: outputs 04, 05, 06 and 07 are not solenoid valve output signals. These signals are also on dual function INPUT –
OUTPUT ports.
Press the down arrow
The following will then appear on the display:
W. X X Version of the motor in use (xx = 55 motor – 550 watts xx = 75 motor – 750 watts)
Press the down arrow
The following will then appear on the display:
VL. X X Set input voltage (x = 100 in reference to 100 volts, x = 200 in reference to 200 volts)
Press the down arrow
The following will then appear on the display:
T P.X X Type of junction box in use (N = XC – EN, MFY = XC = EMFY)
Press the down arrow
The following will then appear on the display:
DV. X X System EEPROM version in use in the main memory
Press the down arrow
The following will then appear on the display:

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RV. X X System SOFTWARE version in use in the main memory
Press the down arrow
The following will then appear on the display:
T. X X SIMPLE SETTING version in use in the main memory
Press the up and down arrows at the same time in order to exit this mode

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15.ADJUSTING THE SEWING HEAD
The 3022 automatic unit uses a new sewing head which has been specifically developed for this kind of sewing process by
VI.BE.MAC. Spa.
The user MUST always switch off the unit following procedure 5 and STOP THE MACHINE before accessing any of the sewing
parts.
We have provided a list of the most common adjustments to be made to the machine in the case of malfunctioning. It should be
remembered that only personnel authorized by VI.BE.MAC. Spa may carry out repairs on the machine in question.
Please contact your nearest VI.BE.MAC. retailer or our Technical Office in order to resolve any major problems or for further
information.
15.1 NEEDLE BAR HEIGHT
For correct regulation of the sewing head, position the needle bar in top dead centre.
Check that there is a space of around 10.5 mm between the needle tip and the needle plate, as illustrated in the following diagram:
Loosen the fixture screw (1) in order to adjust the height of the needle bar if necessary
Needle bar positioned
at top dead centre
Needle plate
10.5 mm
NEEDLE POSITION with regard to the Upper side of the Needle Plate.

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15.3 POSITION AND HEIGHT OF NEEDLE BAR THREAD TAKE UP
The eye bar is connected to the needle bar as follows:
Position the needle bar in bottom dead point .
Needle bar eye in line
with upper fusion side
Needle bar eye in line
with upper fusion side

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15.4 NEEDLE BAR MOVEMENT CAM
This cam serves to move the needle in synchrony with the fabric.
15.4.1 POSITION
In order to find the correct position for the needle bar movement cam with respect to the top shaft inside the sewing head, position
the needle bar at bottom dead centre.
Movement will now be perfectly symmetrical with respect to the needle plate hole.
The cam should be positioned with the vertical surface facing outwards.
Check the position against the two diagrams below:
In the rear view it is possible to observe:
Inside the right-hand assembly, the Eccentric Pinion Flat surface (1) is 90° with respect to the left-hand side of the connecting rod
(2) where the lever (3) is connected, and moves the needle bar pendulum.
1
2
3
Eccentric Pinion
Flat surface
Eccentric Pinion Flat surface 90°
with respect to the connecting
rod axis, when the Needle Bar is set
on the Bottom Point
Lateral view
3
1
Front
view
In the front view of the needle bar structure, the cam (1) inside the assembly is parallel 90° respects the connecting rod axis
15.4.2 MOVEMENT LENGTH
Always adjust the needle bar movement on the basis of the selected stitch length. To do so press button A on the upper part of the
head and turn the hand wheel located on the machine head. On the Wheel are marked the stitch length reference points.
1 = 1mm ; 2 = 2mm ; 3 = 3mm ; 4 = 4mm ; 5 = 5mm.
Always verify that the Needles are always in the same Position compare the Feed dog holes.
doesn’t touch the Needle Plate at the begin and end of its stroke.
When button A is pressed down:
- turning the hand wheel towards the operator (anticlockwise) makes the needle bar movement longer.
- turning the hand wheel towards the operator (clockwise) makes the needle bar movement shorter.
Release the button by turning it in an anticlockwise direction.
Insert a piece of paper of around 40 cm long and sew it in order to check whether the needle perforates the paper perfectly, or,
whether it is ripped (elliptic hole).
A
Adjust the movement length until the hole is perfectly made
WARNING
Never press button A while the machine is in operation.
Before starting up the machine, make sure that button A is released.

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15.5 NEEDLE BAR PENDULUM HEIGHT
It is very important to adjust the needle position with respect to the needle plate hole. If this operation is not carried out correctly it
could lead to the breakage of the unstitching sheet or problems during sewing (dropped stitches).
Turn the hand wheel by hand, moving the needle downwards. When the eye of the needle is at the same level as the plate, loosen
the needle bar pendulum fixture screw.
Now move the needles to the specific distance, 2-2.5 mm as illustrated in the drawing below and then tighten the screw (1) again:
2MM
Distance of around 2 mm
between needle centre – start of
hole
Needle

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15.6 CROCHET HOOKS START MOVEMENT CAM
This cam serves to move the crochet hooks in synchrony with the needle, descent of the needle bar and subsequent backward
movement of the crochet hooks and vice versa.
15.6.1 POSITION
In order to position the crochet hooks start movement cam correctly with respect to the needle, place the needle bar at bottom dead
centre.
The cam should be positioned with the second screw pointing outwards. Check its position against the two illustrations below:
Second screw position in
direction of rotation
Service hole
BIRD’S EYE VIEW
Eccentric that moves the
Looper timing
FRONT VIEW

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•
•
In this way the crochet hook tip passes through the needle hollow:
during forward movement the crochet hook is lower than the centre line of the eye itself
during backward movement the crochet hook is higher than the centre line of the eye itself