KANSAI SPECIAL RX series User manual

Incii.!>lrial Sawing Machines
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RX SERIES
MECHANICS MANUAL
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From the library of: Superior Sewing Machine & Supply LLC

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Table of Contents
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From the library of: Superior Sewing Machine & Supply LLC

"I.^^iooper Angle (Refer to Rg 1& 2)
Fig 1: The correct angle is 2'30'as demonstrated
in Figl. The tip of the looper should be
1mm to 1.2mm forward of the front edge
of the looper at apoint measuring 25mm
to the right of the tip.
Fig 2: In order to adjust this angle refer to Fig 2.
Loosen screw (A) to adjust looper angle.
Note: The standard position is automatically set
as long as screw (A) is tightened squarely
onto the flat on the looper shaft.
(3^
ooper Timing (Refer to Rg 3-5)
Fig 3: As the looper moves to the left, behind the
needles: As the tip of the looper reaches
the center of the left needle, The
dimension from the tip of the looper to the
top of the eye of the needle should be 1 to
1.2mm.
Fig 1
25mm
Fig 2
Fig 3
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Fig 4: As the looper returns to the right, in front
of the needles: As the tip of the looper
reaches the center of the left needle, the
dimension from the tip of the looper to the
top of the eye of the needle should be
0.2mm.
Fig 5: To adjust the timing, loosen screws (A)
and shift the position of the upper belt
gear by holding the gear in place and
turning the handvvheel(+) to advance or
(—) to retard the looper.
(^^^^^ooper-Needle Distance (Refer to Fig e& 7)
Fig 6: When the looper isat its far right position,
the tip of the looper should be approxi
mately 6.5mm from the center of the
needle bar.
This dimension is standard for all gauge
sizes.
\2
Fig 4
Fig 5
Fig 6
6.5mm
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Fig 7: Because it is common practice to measure
looper- needle distance from the tip of the
looper to the center of the right needle
corresponding looper-needle distances
for various gauge size are in table 1.
To adjust, loosen screw (1) and move
looper holder (2) right or left.
Table 1
Gauge size
1/8"
3.2mm 4.9mm
5/23"
4.0mm
4.5mm
3/16"
4.8mm
4.1mm
7/32" 5.6mm
3.7mm
1/4"
6.4mm
3.3mm
4yNeedle Height (Refer to Fig 8)
When the needle bar is in its highest position, the
mark P on the handwheel should meet the mark A
(Refer to Fig 8)
As the looper moves to the left, behind the needles,
the tip of the looper reaches the center of the left
needle.
At this time, the distance from the tip of the looper
to the top of the eye of the left needle must be 0.8
to 1.2mm.
To adjust the height and alignment, loosen screw
(A); set correct position; and tighten screw (A).
Make sure that the needles are aligned in the
center of the needle plate holes.
Fig 7
(a)
Fig 8
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ooper-Needle Clearance (Refer to Fig s)
When the tip of looper (A) meets the left needle (C)
the clearance between them should be 0.2mm to
0.3mm. This adjustment can be made by loosening
screw(D)on the looper holder, moving the looper
frontwards or backwards to the appropriate
setting, and retightening screw (D).
Note: As the looper moves to the left, behind the
needles, the tip of the looper (A) will
contact the right needle slightly (0~
0.05mm).
(^^^I^Looper Avoid Angle (Refer to Fig 10-13)
Fig 10
0.2- i
0.3mmr9 °
0.2-
0.3mm"T?
Fig 12
Fig 9
3 Needle
2 Needle
Fig 13
Fig 10: Shows the correct looper motion
Fig 11: Shows avoid eccentric (A), adjustment screw (B), advanced timing mark (C), retarded
timing mark (D) and standard timing mark (E).
Fig12: Shows exact location of the avoid eccentric in relation to the machine.
Fig 13: A - Standard Angle Path
B - Advanced Angle Path
C - Retarded Angle Path
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getting The Looper Avoid (Refer to Fig 14-15) ^
Note: The looper avoiding motion requires adjustment when a different diameter needle is to be
used. c
Fig 14
Fig 14: When the looper moves from its left-most
position, deflection of the needle should
beginwhen the tip of the left-most needle
is 3.0mm-3.5mm from the looper eye. The
contact is from 0.3mm—0.6mm on the
back of the looper.
Fig 15: Align dot (D) with mark (C) for standard
needles. In the case of extremely fine
needles loosen screw (A) and nut (B) and
move the dot (D) towards the rear of the
machine. In the case of extremely thick
needles move dot (D) towards the front of
the machine.
Cl
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j L
3~3.5mm
0.3-~0.6irm
Fig 15
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'f;®Rear Needle Guard (Refer to Fig i6~i9)
Fig 16; Height Adjustment
With needles in the down position set line
(A) of needle guard even with the center of
the needle eyes.
Fig 17A: Clearance (Right Needle)
The rear needle guard contacts the right
needle slightly (0.0-0.5mm) so the looper
will not contact the needle as it moves
from right to left.
Fig 17B: Clearance (Left Needle)
The clearance adjustment between the
left needle and the rear needle guard is
0.05~0.1mm.
Fig 18: To Adjust
Loosen screw (C) to adjust front-back
position. Loosen screw (B) to set height
and angle.
fig 19: Standard setting
Align the mark on eccentric (D) with the
mark on the main shaft for standard
needle guard timing.
Fig 17A
Right Needle
Contact
0 to 0.05mm
Fig 18
Fig 19
inc
Fig 16
Fig 17B
Left Needle
Clearance
0.05 to 0.1mm
— c
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ront Needle Guard (Refer to Fig 20^-22)
Fig20: Front Needle Guard Height
Set the contact edge of the front needle
guard 1.8 to 2.3mm above the tip of the
left needle when the tip of the looper is
behind the center of the left needle.
Fig 21: Front Needle Guard Clearance
The clearance between the needles and
the front needle guard should be the follo
wing:
A) 0.00.05mm for the left needle
B) 0.1 ~0.2mm for the right needle
Fig 22: Adjustments
A) To adjust the height and angle loosen
screw (A)
B) To adjust the front-back position
loosen screw (B)
0.0~0.2mm
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|lwTop Cover Spreader (Refer to Fig 23-27)
Fig 23: Screw (A) allows for adjustment of the left
most position. Screw (B) is for height
adjustment of the top cover spreader and
clearance between the spreader and the
needles.
Fig 24: The proper distance between the top
spreader and the needle plate is 8.5-
9.5mm. (Refer to table 2 for recommended
distance according to gauge size.)
Table 2
Gauge
Spreader Height
1/8"
3.2mm
9.5mm
5/23"
4.0mm
9.5mm
3/16"
4.8mm
9.5mm
7/32"
5.6mm
8.5mm
1/4"
6.4mm
8.5mm
Fig 25A:Set the tip of the thread hook 4.5 to 5.5mm
to the left of the center of the left needle.
Fig 25B:Set the tip of the thread hook (C) 0.5 to
0.8mm from the front of the left needle.
Fig 26: To adjust spreader stroke loosen nut (D)
and raise or lower the connecting pin (E).
Fig 27: To shorten spreader stroke for narrow
gauge sizes move the connecting pin
towards (a). To increase spreader stroke
for wide gauge sizes and long stitch
lengths move the connecting pin towards
(b).
8.5~9.5mm
Fig 25 A
4.5~5.5mm
rt..
Fig 26
Fig 27
0.5-
0.8mm
Fig 23
Fig 24
Fig 25 B
I:y.
From the library of: Superior Sewing Machine & Supply LLC