KANSAI SPECIAL V Series User manual

INSTRUCTION 


Industrial Sewing Machines
Third edition : March 2001
No. 010012
V7100/D,DE,F,ML
W8100/D,DE,F,C
W8042
W8042-1
V7002-1S
W8103-1S

INTRODUCTION
INTRODUCTIONINTRODUCTION
INTRODUCTION
Thank you for your purchasing Kansai Special's V.W Series.
Read and study this instruction manual carefully before beginning any of the
procedures and save it for later use.
1. This instruction manual describes adjustments and maintenance procedures on this
machine.
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 instruction manual are subject to change without
notice.

CONTENTS
CONTENTSCONTENTS
CONTENTS
1. NEEDLES & THREADING THE MACHINE
1-1 Needles ･･････････････････････････････････････････････････････ 1
1-2 Replacing the needle ･･････････････････････････････････････････ 1
1-3 Threading the machine ････････････････････････････････････････ 1
2. MACHINE SPEED
2-1 Machine speed & direction in which the machine pulley runs ･････ 3
2-2 Motor & belt ･･････････････････････････････････････････････････ 3
3. LUBRICATION
3-1 Oil ･･･････････････････････････････････････････････････････････ 4
3-2 Oiling ････････････････････････････････････････････････････････ 4
3-3 Replacing the oil and the filter element ･････････････････････････ 4
4. SEWING MACHINE INSTALLATION
4-1 Cutting the machine table ･････････････････････････････････････ 5
4-2 Installing the machine ･････････････････････････････････････････ 6
5. TIMING OF THE LOOPER TO THE NEEDLES
5-1 Angle and height for installing the looper ･･･････････････････････ 6
5-2 Looper left-to-right movement ･･････････････････････････････････ 7
5-3 Needle height ･････････････････････････････････････････････････ 7
5-4 Length of the looper connecting bar ･････････････････････････････ 7
5-5 Looper setting distance ････････････････････････････････････････ 8
5-6 Needle/looper front-to-back relationship ････････････････････････ 8
6. FRONT AND REAR NEEDLE GUARDS
6-1 Position of the needle guard (rear) ･･････････････････････････････ 9
6-2 Position of the needle guard (front) ･････････････････････････････ 9
7. ADJUSTING THE FEED DOGS & STITCH LENGTH
7-1 Feed dog height ･･････････････････････････････････････････････10
7-2 Stitch length ･････････････････････････････････････････････････10
7-3 Differential feed ratio ････････････････････････････････････････10
8. ADJUSTING THE SPREADER
8-1 Position of the spreader ･･･････････････････････････････････････11
8-2 Position of the spreader thread eyelet ･･････････････････････････11
9. ADJUSTING THE PRESSER FOOT
9-1 Presser foot pressure ･････････････････････････････････････････12
9-2 Position of the presser foot & foot lift ･･････････････････････････12
10. ADJUSTING THE STITCH FORMATION
10-1 Position of the needle thread eyelet ････････････････････････････13
10-2 Position of the thread support ･････････････････････････････････13
10-3 Position of the spreader thread eyelet ･･････････････････････････13
10-4 Position of the thread eyelet of the looper thread take-up ････････14
10-5 Position of the looper thread take-up ･･････････････････････････14
11. CLEANING THE MACHINE
･･･････････････････････････････14

1
< Note >
Before replacing the needle, 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】NEEDLES & THREADING THE MACHINE
1
11
1-
--
-1 Needles
1 Needles1 Needles
1 Needles
UY128GAS of Schmetz or Organ
Select the proper needle for the fabric and thread.
< Needles and needle size >
Schmetz UY128GAS Nm65 Nm70 Nm75 Nm80 Nm90
Organ
UY128GAS # 09 # 10 # 11 # 12 # 14
< Right needle of model-1S series >
Schmetz TV7 Nm75
Organ TV7 # 11
1
11
1-
--
-2 Replacing the needle
2 Replacing the needle2 Replacing the needle
2 Replacing the needle
When replace the needle, check the needle carefully to see
that the scarf is turned to the rear of the machine (see the illustration). Then install the
needle correctly.
1
11
1-
--
-3 Threading the machine
3 Threading the machine3 Threading the machine
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.
A，B，C ... Needle threads
D .............. Top cover thread
E .............. Looper thread

2
A，B，C ... Needle threads
D ...............Top cover thread
E，F，G ... Looper thread
A，B，C，D ... Needle threads
E ..................... Top cover thread
F，G ...............Looper thread

3
【2】MACHINE SPEED
2
22
2-
--
-1 Machine speed & direction in which the machine pulley runs
1 Machine speed & direction in which the machine pulley runs1 Machine speed & direction in which the machine pulley runs
1 Machine speed & direction in which the machine pulley runs
Refer to the table below for maximum and standard
speeds of the Series. To extend machine life, run
the machine approximately 15~20% below the
maximum speed for the first 200 hours of operation
(approx. 1 month). Then run the machine at the
standard speed. The machine pulley turns
counterclockwise as seen from the end of the
machine pulley.
2
22
2-
--
-2 Motor & belt
2 Motor & belt2 Motor & belt
2 Motor & belt
Motor : 3-phase, 2-pole, 400W clutch 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
V7100 6000SPM 5500SPM
W8100 5500SPM 5000SPM
W8042-1 4500SPM 4000SPM
W8103-1S 3000SPM 2500SPM
< Motor pulley selection table >
Machine speed
(SPM)
Motor pulley
outer diameter
(mm) 50Hz 60Hz
60 2500 2950
70 2900 3450
80 3300 3900
90 3700 4400
100 4100 4900
110 4500 5400
120 5000 5900
130 5300 (6400)
140 5800 (6900)

4
【3】LUBRICATION
3
33
3-
--
-1 Oil
1 Oil1 Oil
1 Oil
Use Kansai Special’s genuine oil.
(Part No. 28-611)
3
33
3-
--
-2 Oiling
2 Oiling2 Oiling
2 Oiling
■
To fill the machine with oil
Remove rubber plug A from the oil hole.
Fill the machine with oil until the oil level is at the
top line (see H in the illustration) on oil gauge C.
After the first lubrication, add oil so that the oil
level will be between H and L.
■
To check for proper oil flow
After filling the machine with oil, run the machine
to check the oil is splashing from oil pipe outlet B.
3
33
3-
--
-3 Replacing the oil
3 Replacing the oil3 Replacing the oil
3 Replacing the oil and the filter element
and the filter elementand the filter element
and the filter element
To extend machine life, be sure to replace 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 filter element E is contaminated, proper oiling may not be performed.
Clean the filter element every six months. If just a little or no oil flows out from the
nozzle with the proper amount of oil in the machine, check the filter element.
To clean the filter element, remove oil reservoir.

5
【4】SEWING MACHINE INSTALLATION
4
44
4-
--
-1 Cutting the machine table
1 Cutting the machine table1 Cutting the machine table
1 Cutting the machine table

6
4
44
4-
--
-2 Installing the machine
2 Installing the machine2 Installing the machine
2 Installing the machine
Install the brackets on the underside of the table board (see the illustration below).
Fit the rubber cushions onto the brackets.
Mount the machine head on the rubber cushions.
【5】TIMING OF THE LOOPER TO THE NEEDLES
5
55
5-
--
-1 Angle and height for installing the looper
1 Angle and height for installing the looper1 Angle and height for installing the looper
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.
The proper angle for the looper on V7100 and W8100
is 3°. Distance at 25mm from the point of the looper
between the bottom of the looper blade and the
extension line from the point of the looper :
Approximately 1.3mm

7
5
55
5-
--
-2 Looper left
2 Looper left2 Looper left
2 Looper left-
--
-to
toto
to-
--
-right movement
right movementright movement
right movement
When the point of the looper, moving to the left or
right, has reached the left side of the left needle,
distances As from the top of the left needle's eye to the
point of the looper should be the same.(see the
illustration on the right). To adjust the timing of the
looper to the needles, remove the machine cover, loosen
three screws C on eccentric B and then shift the
eccentric by turning the machine pulley while holding
the eccentric.
5
55
5-
--
-3 Needle height
3 Needle height3 Needle height
3 Needle height
When the needle bar is at the top of its stroke, adjust
distance A from the top surface of the needle plate to
the point of the left needle according to the gauge size
in the table below. To make this adjustment, loosen
nut B and move the needle bar up or down.
On W8042 and W8042-1, use the front needle for
reference.
Gauge size A (mm)
1/8
5/32 8.8
3/16 8.2
7/32 7.8
2-Needle
1/4 7.4
7/32 7.8
3-Needle 1/4 7.4
W8042 8.7
W8042-1 9.5
V7002-1S 9
W8103-1S 7.8
5
55
5-
--
-4 Length of the looper connecting bar
4 Length of the looper connecting bar4 Length of the looper connecting bar
4 Length of the looper connecting bar
Adjust distance A between two connecting rods
according to pitch A in the table below (see the
illustration on the right).
Adjustment is made by loosening nuts B and turning
connecting bar C as required.
Model Pitch A (mm)
V7100 100
W8100 100
W8042 102
W8042-1 105