Koike Sanso Kogyo Handy Auto PLUS User manual

Portable Automatic Gas Cutter
BAA04A12
Handy Auto
PLUS
OPERATION MANUAL
KOIKE SANSO KOGYO CO.,LTD.
For every person who will be engaged in
operation and maintenance supervision, It is
recommended to read through this manual
before any operations, so as to permit
optimum operation of this machine.

Handy Auto PLUS
INTRODUCTION
Thank you very much for purchasing this product. Read this instruction
manual thoroughly to ensure correct, safe and effective use of the machine.
Read the manual first to understand how to operate and maintain the
machine.
Make sure you read, understand and take all the necessary safety
precautions.
SAFETY PRECAUTIONS
This product is designed to be safe, but it can cause serious accidents if not
operated correctly. Those who operate and repair this machine must read this
manual thoroughly before operating, inspecting and maintaining the machine. Keep
the manual near the machine so that anyone who operates the machine can refer to
it if necessary.
■Do not use the machine carelessly without following the instructions in the manual.
■Use the machine only after you completely understood the contents of the manual.
■If an explanation in the manual is difficult to understand, contact our company or sales service office.
■Keep the manual near by at all times and read it as many times as necessary for a complete
understanding.
■If the manual becomes lost or damaged, place an order with our company or sales service office for a
new one.
■When transferring the machine to a new owner, be sure to hand over this instruction manual as well.
QUALIFICATIONS FOR MACHINE OPERATOR
Operators and repair staff of this machine must completely understand the
contents of the instruction manual and they must be qualified and educated to
handle this equipment.

Handy Auto PLUS
Symbol
Title
Meaning
General
General caution, warning, and danger.
Be careful not to get your
fingers caught.
Possible injury to fingers if caught in the insertion
part.
Caution: Electric shock!
Possible electric shock under special conditions.
Ground this equipment.
Operators must ground the equipment using the
safety grounding terminal.
Pull out the power plug
from the outlet.
Operators must unplug the power plug from the
outlet when a failure occurs or when there is a
danger of lightning.
Caution against bursting
Possible bursting under certain conditions.
General
General warning.
Caution: Hot!
Possible injury due to high temperature under
certain conditions.
Caution: Ignition!
Possible ignition under certain conditions.

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CONTENTS
1. Safety Information 3
■WARNING 3
■CAUTION 3
■NOTICE SIGNS 3
1.1 General machine safety precautions 3
1.1.1 Machine safety 3
1.1.2 Safety clothing 3
1.1.3 Operations and handling safety precautions 3
1.1.4 Electrical system precautions 5
1.1.5 Maintenance and inspection precautions 5
1.2 Gas cutting safety precautions 5
1.2.1 Prevention of explosion 5
1.2.2 Pressure regulator safety precautions 5
1.2.3 High pressure gas cylinder safety precautions 5
1.2.4 Safety precautions for hoses 6
1.2.5 Safety precautions for fire 6
1.2.6 Safety precautions for skin burns 6
2. Locations of safety labels 7
3. Outline of machine 8
3.1 Features of machine 8
3.2 Name and function of each section 8
3.3 Specifications 9
4. Preparation for operation 9
4.1 Contents of package 9
4.2 Machine assembly 10
4.3 Preparation for operation 10
4.3.1 Connecting the power cable 10
4.3.2 The method of setting the Pilot Burner 10
4.3.3 Connecting the tip 12
4.3.4 Installing the wheel 12
4.3.5 Fitting the wheel 12
4.3.6 Cutting process 13
4.3.7 Speed setting 13
4.3.8 Changing over direction of motor rotation 13
4.3.9 How to use the guide roller 13
4.4 Other attachment 14
4.4.1 Auxiliary wheel 14
4.4.2 Beveling wheel 14
4.4.3 Small circle cutting attachment 14
4.4.4 Straight line cutting rail (optional) 15
4.4.5 Manual guide lever 16
4.4.6 Large circle cutting attachment (optional) 16
5. Cutting operation 18
5.1 Safety measures prior to operation 18
5.1.1 Precaution for handling AC adapter 18
5.1.2 Selection of tip 18

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5.1.3 Travelling direction changeover switch 18
5.2 Ignition,Extinguishes flame and Flame adjustment 18
5.2.1 Gas supply 18
5.2.2 Procedure of ignition 18
5.2.3 Flame adjustment 19
5.2.4 Preheating 20
5.2.5 Procedure of extinguishing flame 20
5.2.6 Only pilot flame ON/OFF 20
5.2.7 Photograph of ignition lever unit 20
5.2.8 Look system of the lever for ignition 21
5.2.9 Look system of valve 21
5.3 Cutting and piercing method 22
5.4 Procedures for starting cutting operation and extinguishing the flame 23
5.4.1 Thin plate cutting 23
5.4.2 Bevel cutting 23
5.5 Safety measures against backfire and flashback 24
5.5.1 Prevention of backfire 24
5.5.2 Prevention of flashback 24
6. Maintenance and inspection 24
6.1 Wheel maintenance 24
6.2 Tip maintenance 24
6.3 Lubrication 25
6.4 Inspection of the gas leakage 25
7. Trouble shooting 25
8. Wiring diagram 26
9. Assembly drawing of Handy Auto PLUS 26
10. Parts list 27
10.1 Main units 27
10.2 Option unit 29
10.3 Pilot unit assy 31
10.4 Safety lock assy 31
11. Cutting Data 32

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1 Safety information
Operation, inspection, and maintenance that disregard the basic safety rules cause many accidents.
Carefully read, understand, and master the safety measures and precautions described in this instruction
manual and on the machine before operating, inspecting, and maintaining the machine.
The safety messages are classified as indicated on the machine safety labels:
■WARNING
This word is used in a warning message and a warning label is positioned at places that could cause
injury or serious accident.
■CAUTION
This word is used in a caution message and a caution label is positioned at places that could cause slight
injury or machine damage. This is also used as a caution for frequent dangerous actions.
■NOTICE SIGNS
This is a sign to show machine operators and maintenance engineers items that relate directly to damage of
machines and surrounding facilities and equipment.
1.1 General machine safety precautions
Read and fully understand the following important safety information:
1.1.1 Machine safety
1.The machine casing is mainly made of aluminum alloy to reduce weight. For this reason, be careful not to
drop a heavy item on the machine, or not drop the machine when carrying it, since the alloy is not designed
to withstand such impact.
2.When mounting hoses to the torch and distributor, tighten the nut with the attached wrench. After mounting,
be sure to check there is no gas leak with a detection liquid. If a gas leak is found, retighten the nut firmly.
3.When fixing a tip to the torch, tighten the nut with the two wrenches attached. In addition, avoid damaging
the taper part of the tip since this may cause backfire.
4.Never disassemble the machine other than during maintenance and inspection. Otherwise, malfunction will
result.
5.Never remodel the machine. Remodeling is very dangerous.
6.When changing the travel direction, make sure that the direction switch is in the neutral (stop) position, and
operate the direction switch after the machine has stopped.
7.Always turn the power off when not used.
8.Never use the machine outdoors when the weather is wet. This will cause failure of the machine and could
cause a fatal accident by electric shock.
1.1.2 Safety clothing
1.Besure to wear protector’s gauntlets, goggles, helmet, and safety shoes during operation.
2.Avoid operating the machinewith wet clothes or hands in order to prevent electric shock.
1.1.3 Operation and handling safety precautions
1. Read this instruction manual before operating the machine.
2. Mount and center the machine correctly and confirm correct motion before operation.

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3. Check that the drive knob is at "0" before supplying power.
4. Prior to operating the machine, check the safety of the surroundings to avoid accidents.
5. Never move the machine while the preheat flame is on.
6. When a large-circle cutting attachment is used and the magnet is attached to the steel plate,
be careful not to get your fingers caught between the magnet and the steel plate.
The magnet is powerful.
7. Be careful that the center of the small-circle cutting attachment is pointed.
8. The stopper spring is very strong, so be very careful not to get your fingers caught when attaching the
standard wheel and small circle cutting attachment.
9. When cutting along a straight line, be sure to tighten the wheel lock knob; otherwise the wheel position
will change.
10.When a large-circle cutting is about to be completed, be careful that the machine and cut material do
not drop.
11.Be sure to tighten the adjustment screw for locking accessories (standard wheel and small-circle
cutting attachment).
12.Traveling direction changeover switch.
●The traveling direction changeover switch on the machine is used to change forward/backward
movement to linear cutting and clockwise/counterclockwise turning for circular cutting. Check the
traveling direction or turning direction before cutting.
●To change the traveling direction, set the drive knob to the stop position. Then after the machine
has stopped completely, change the traveling direction.
Note: Before turning on the power, be sure to check that the drive knob is in the stop position. If
the drive knob is on, it is dangerous to start the machine.
13.Never touch the rotary section (universal joint) when the machine is travelling.
It is very dangerous.
14. Keep clean the roller traveling surface of rail and roller itself in order to avoid knocking during traveling.
15.The area near the gas hose joint will be gripped, so connect the gas hose correctly.
16.Be sure the preheat oxygen and gas valves when checking the motion of machine before operation
and cutting position.
17.After cutting, the wheels, bracket, head cover, locking knob, etc. will be very hot.
Be sure to wear gloves when touching them.
18.After cutting, do not strike the material with the tip, wheel or head.
19.When thrown or dropped, the machine life will be shortened, and the possible damage to the valve
will cause gas leakage.
20.Never pull the power cable.
21.Do not place the machine directly on sand or mud.
22.Do not lay the machine on its side with the preheat flame on.
23.Be sure to use a hose band to prevent danger.
24.Do not hold the turning of the universal joint or insert an object between the joint and conduit tube;
otherwise motor trouble will occur.
25.When the fuse is blown out frequently, never use a fuse for higher amperage without confirming the
cause.
26. Hold the handle when carrying the machine.
27.Ｄo not put in the hand, clothes etc. absolutely, because there are small gap between the radius
adjustment bar and machine body when cutting small circle. Please pay attention sufficient so as
not to be put.
28.As for this machine the drive may not stop even the volume is set at O. indication.
Please turn off the drive switch certainly after use.

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1.1.4 Electrical system precautions
1.Be sure to check the input power voltage of the machine before operation. The input power voltage should
be in the range of ±10% ofthe ratedvoltage. The machine should not be operated out of this range.
2.The metal plugs are screw-threaded, therefore, fully tighten them so that they will not come loose during
operation.
3.Stop operation and turn off the power in the following cases,
and ask a qualified electrician to repair the machine.
1)Broken or abraded cables
2)When the machine has been in contact with water, or in case of liquid damage to the machine.
3)Abnormal machine operation despite operating the machine according tothe instruction manual
4)Machine breakdown
5)Poor machine performance that requires repair
4.Periodically inspect the electrical system.
1.1.5 Maintenance and inspection precautions
1.Ask a qualified electrician to perform repair and inspection service.
2.Disconnect the power plugbefore inspecting and repairing the machine.
3.Maintain the machine periodically.
1.2 Gas cutting safety precautions
Strictly observe the safety rules and precautions to ensure the safety of gas cutting operations.
Operators and supervisors MUST keep safety in mind.
1.2.1 Prevention of explosion
1.Never cut pressurized cylinders or hermetically sealed containers.
2.Ensure sufficient ventilation for gas cutting to prevent the air from becoming stale.
1.2.2 Pressure regulator safety precautions
1.Before starting operation, check that all pressure regulators are operating correctly.
2.Ask a skilled repair engineer to perform maintenance and inspection service.
3.Do not use pressure regulators from which gas is leaking, nor malfunctioning pressure regulators.
4.Do not use pressure regulators smeared with oil or grease.
1.2.3 High-pressure gas cylinder safety precautions
1.Never use broken cylinders or cylinders from which gas are leaking.
2.Install cylinders upright and take measures to prevent them from falling.
3.Use cylinders only for specified purposes.
4.Do not smear container valves with oilor grease.
5.Install cylinders in a place free from heat,sparks, slag, and open flame.
6.Contact the distributor if the container valves will not open.
Never use a hammer, wrench, or other tools to forcibly open container valves.

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1.2.4 Safety precautions for hoses
1.Use the oxygen hose for oxygen gas only.
2.Replace cracked hoses or other hoses damaged by sparks, heat, unshieldedfire, etc.
3.Install hoses without twisting.
4.To prevent breakage of hoses,take great care during operation and transportation.
5.Do not hold the hoseswhen moving the machine.
6.Periodically check the hoses for damage, leakage, fatigue, loose joints, etc, to ensure safety.
7.Cut hoses to the minimum possible length. Short hoses reduce hose damage and pressure drop, as well as
reduce the flow resistance.
1.2.5 Safety precautions for fire
Take safety precautions to prevent fireprior to gas cutting.
Ignoring hot metal, sparks, and slag could cause a fire.
1.Keep a fire extinguisher, fire extinguish sand, bucket full of water, etc. ready on the site where gas cutting is
performed.
2.Keep flammables away from the cutting area to avoid exposureto sparks.
3.Always cool down steel plates that have become hot after cutting, as well as hot cut parts or scrap, before
bringing them close to flammables.
4.Never cut containers to which flammable materials are stuck.
1.2.6 Safety precautions for skin burns
Observe the safety precautions to prevent skin burns. Ignoring heat, spatter, and sparks during operation
could cause a fire or burned skin.
1.Do not perform cutting near flammables. (Move flammables well away from the sparks.)
2.Do not cut containers filled with flammables.
3.Do not keep lighters, matches, and other flammables nearby.
4.Flames from the torch will burn the skin. Keep your body away from the torch and tip, and check the safety
before operating the switches and valves.
5.Wear the correct protectors to protect your eyes and body.
6.Correctly tighten the tip to prevent backfire.
●Whenfixing a tip to the torch, tighten the nut with the two wrenches attached.
●If the tip is tightened excessively, it will be heated during cutting and tightened still more, making it difficult
to remove the tip.
●Avoid damaging the taper ofthetip since this may cause backfire.
7.Check with soapsuds for any leakage of gas from the connection part of the distributor, hose and torch.
Never use oil or grease on the connection of theoxygen pipe to avoid backfirewhich may lead to explosion.
8.Be sure to check the following when igniting:
●Always wear the required protectors (gauntlets, helmet, goggles, etc.)
●Check for any obstacles, dangerous materials and flammables near or in the direction of cutting.
Determine the gas pressure.
●The gas pressure must be within the appropriate range. (For the gas pressure, refer to the Cutting Data.)
9.The torch, tip and heat shield are heated to a very high temperature. Always wear gauntlets when handling
them.Also the surface after cutting is very hot so do not touch it even while wearing gauntlets.
10. Extinguishes flame before carrying the machineto avoid danger.

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2 Locations of safety labels
Safety labels and other labels for correct operation are affixed to the machine.
Carefully read the labels and follow the instructions on them when operating the machine.
Never remove the labels. Keep them clean and legible at all times.
1-2 1-4
1-6
or
1-1 1-3 1-5 1-7
(Note) 1-7 Label LPG label is stuck in the case of propane specification.
AC label is stuck in the case of acetylene specification.
Handy Auto PLUS
NO. D.C.12V
KOIKE SANSO KOGYO CO., LTD.
MADE IN JAPAN
PUSH
NET
WEIGHT kg
ON OFF
OX
FG
AC
LPG
1-7
1-1
1-6
1-5
1-3、1-4
1-2

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3 Outline of machine
3.1 Features of machine
The "HANDY AUTO" is a portable automatic gas cutter developed on the basis of a novel idea for
the purpose of automatization of portable cutters used in all work sites, incorporating their merits.
The "HANDY AUTO" automatically moves as the wheel on the side of the tip turns. An operator can
cut material in any shape by controlling the direction of the wheel.
The machine can cut only flat material but also vertical material, angle bars, light section steel,
round bars, pipes and deformed steel sheets.
Even a beginner can cut material smoothly by simple operation.
<Handy AutoⅡ> is speed the one that turns the low speed and enabled the cut of φ200 ㎜with a
small circle cutting device, to expand the function of handy auto circle cut.
<Handy Auto Plus> leaves the characteristic of a Handy Auto and a Handy Auto Ⅱas it is, and
incorporated an automatic ignition method by one-touch operation. The ignition subsequent to the
2nd time to bothersome flame adjustment unnecessary, being attached the flame adjustment
memory it is.
3.2 Name and function of each section
1.Wheel locking knob
The wheel can change the position by 360°
when the knob is loosened.
2.Pilot nozzle
The pilot flame is formed by pulling an
ignition lever.
3.An ignition lever
By operating this lever, the high frequency is
generated, and the pilot and preheating
flame comes out.
4.Rock/Release button of ignition lever
5.Drive switch
The drive switch is interlocked with the cutting
oxygen valve.
6.Cutting oxygen valve
Turn the valve to feed cutting oxygen.
7.Spped control knob
Turn the knob in the direction of H to move the
machine quickly and to L to move slowly.
8.Preheating oxygen valve
Turn the valve to feed preheating oxygen.
9.Fuel gas valve
Turn the valve to feed fuel gas.
10.Fuse
11.Normal/reverse rotation changeover button
switch
The switch changes the direction of the
rotation and traveling.
12.Motor
13.Universal joint
14.AC adapter
Insert the adapter into the power supply.
15.Tip
16.lever rock
1
2
15
4
7
14
5
6
13
12
11
3
16
2
10
9
8

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3.3 Specifications
1.Weight(main unit) :2.8kg
Handy auto kit :7.9kg
2.Machine size :525mm×70mm×148mm (With standard wheel assembly)
3.Wheel drive : Friction drive
4.Power source :±10%
5.Speed control method : Transistor control
6.Cutting speed :150～530mm/min
7.R.P.M :1.2r.p.m～4.2r.p.m
8.Cutting Thickness :5～30mm (by standard accessories)
9.Motor : DC 12V 7200 r.p.m. reducer 1/400
Optional attachments : Auxiliary wheel assembly
: Beveling wheel assembly (22°～45°)
: Small circle cutting attachment (φ30 ～φ120mm)
: Guide lever
: Large circle cutting attachment (φ120 ～φ500mm)
: Straight rail (500mm)
4 Preparation for operation
4.1 Contents of package
Carefully take the machine out of the case.
First, please check your unit to make sure it is complete.
The following is a list of the standard parts you should receive.
STANDARD PACK
1) Main unit :1 set
2) Standard wheel assembly :1 set
3) Spanner :1 pc
4) Fuse(mizett, 1A) :2 pcs
5) Tip (102 or 106 type #0,1,2, one each) :3 pcs
HANDY AUTO KIT
1) Main unit :1 set
2) Standard wheel assembly :1 set
3) Auxiliary wheel assembly :1 set
4) Beveling wheel assembly :1 set
5) Small circle cutting attachment :1 set
6) Guide lever :1 pc
7) Spanner :1 pc
8) Fuse(mizett, 1A) :2 pcs
9) Tip (102 or 106 type #0,1,2, one each) :3 pcs
10) Steel carrying case :1 pc
11) Tip cleaner :1 pc

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4.2 Machine assembly
1.Carefully take the machine out of its case.
2.Attach the primary hose to the gas distributor.
(1)Oxygen hose (green) to the top position hose nipple
(2)Gas hose (red) to the bottom position hose nipple
4.3 Preparation for operation
4.3.1 Connecting the power cable
1. Connect the metallic plug on the AC adapter side with the metallic receptacle on the machine side.
Before connection, check that there is no foreign substances or dust.
2. The metal plugs are screw-threaded, therefore, fully tighten them so that they will not come loose
during operation.
4.3.2 The method of setting the Pilot Burner
1. Take off the nozzle cover, and then set the Pilot Burner.
(Note) Take out two screws, and then the nozzle cover can be taken out.(Refer the following
pictures.)
Hexagon nut
Screw
Nozzle cover
Screw
(is tightened by a hexagon nut)
Ignition Cable

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2. This Handy Auto PLUS is propane and also acetylene share machine.
Please confirm the position of the cover of the pilot nozzle before using.
(Refer the following drawings)
Please use this machine after adjusted it with the following method, in the case that the position
relation between use gas and cover are not matching in case.
・for use Propane
（１） Loosening a fixation screw the cover is moved fully in the direction of an arrow like
a following sketch.
（２） Please confirm that the V ditch for judgment is hiding with a cover.
（３） Please confirm that the hole (air entrance) is not hiding with a cover edge.
（４） Fix a screw after confirmation.
・for use Acetylene
（１） Loosening a fixation screw the cover is moved fully in the direction of an arrow like
a following sketch.
（２） Please confirm that the V ditch for judgment is not covered with a cover.
（３） Please confirm that the hole (air entrance) is half hiding with a cover edge.
（４） Fix a screw after confirmation.
3. After completion of pilot burner setting, please install nozzle cover with screw
Attention: When installing nozzle cover, make sure ignition cable is not squeezed between the
nozzle cover and the main body.
Fixation screw
hole
Propane
cover
Fixation screw
hole
cover
Acetylene
Propane・Acetylene
The V ditch for judgment

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4.3.3 Connecting the tip
1.Select a proper tip according to the thickness of the steel plate and attach it to the torch.
(To select a tip, refer to the table of Cutting Data.)
・When fixing a tip to the torch, tighten the nut with the two wrenches attached.
・If the tip is tightened excessively, it will be heated during cutting and tightened still more, making it
difficult to remove the tip.
･In addition, avoid damaging the taper of the tip since this may cause backfire.
(1) Spanner
4.3.4 Installing the wheel
Insert the wheel bracket shaft into the gear cover. Pull up spring lever and hang it on the stopper.
(1)Gear cover
(2)Bracket shaft
(3)Stopper
(4)Spring
4.3.5 Fitting the wheel
As the wheel rotates a fully 360°from the center of the tip, all direction cutting is possible. Decide the
position of the wheel as you like according to the material to be cut or for your positional comfort during
the cutting operation.
To set the position of the wheel, loosen the wheel setting knob a little, set the position and tighten the
knob up well.
(1)Position setting knob
(2)Direction for tightening
(3)Direction for loosening

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4.3.6 Cutting processes
Open the cutting oxygen valve more than 1/8 turn. This starts the motor, as the drive switch and the
cutting oxygen valve are linked together. Both the drive switch and the cutting oxygen valve, however,
can operate independently.
(1) Drive switch
(2) Cutting oxygen valve
4.3.7 Speed setting
Adjust the cutting speed with the speed adjustment
knob according to the thickness of material
immediately after the wheel has started rotating. Turn
the knob toward the H to increase the cutting speed,
and to L to decrease.
(1) Speed adjustment knob
(2) Drive switch
4.3.8 Changing over direction of motor rotation
To switch the direction of motor rotation, push and hold the
button on the left side of the main unit until you hear a clink.
Stop the motor beforehand, or the service life of the motor
will be shortened, the fuse may blow, etc.
4.3.9 How to use guide roller
A guide roller is attached to the side of the wheel to
stabilize the tip angle. The height of the guide roller can be
adjusted by loosening the wing nut. Set it in the lower
position for right-angle cutting. Select a proper height for
bevel cutting in accordance with the angle to incline the
machine and fix it with the wing nut.
(1) Butterfly nut
(2) Guide roller

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4.4 Optional attachments
4.4.1 Auxiliary wheel
This is used to add further stability to the cutting
operation. To install, lift the guide roller of the square
cutting attachment from the cutting material.
Then, fix the wheel with a butterfly nut.
4.4.2 Beveling wheel
This is used for bevel cuts at an angle range of 22°
-45 °. To install, remove the square cutting
attachment. Then loosen the guide roller fixing
butterfly nut, adjust the position of the guide roller and
set the bevel angle.
In bevel-cutting at a comparatively large angle, watch
out for slip caused by dragging hoses or the condition
of the material. For beveling, the use of the straight
line cutting rail is recommended as this will give more
stability than a hand-held operation.
For large angle beveling, use a tip one grade larger
than that for straight cutting or pre-heat more
thoroughly.
4.4.3 Small circle cutting attachment
This is used for cutting small circles of 30-120φmm
1) Remove the square cutting attachment.
2) Loosen the wheel setting knob.
3) Fasten the clutch knob to the gear cover firmly.
4) Loosening the radius setting knob, set the cutting radius
and tighten the knob.
5) Put the drive switch to ON, and adjust the cutting speed.
6) The circle cutting attachment can be operated manually,
by loosening the clutch knob. Decide the initial cutting
position and set the attachment firmly in position.
During the circle cutting operation there may be fluctuations
in the cutting speed . These are caused by hose drag,
changes in the way or position the machine is held and the
like being transmitted to rotation mechanism.
In cutting small circles with the small circle cutting
attachment, be sure to loosen the wheel setting knob.
When cutting circles, always make sure the clutch knob is
tightened.
When not cutting circles loosen or remove the clutch knob.
When you start a cut by piercing, open the cutting oxygen
valve slowly after preheating to prevent cutting errors.

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【NOTE】
1）Loosen the wheel position setting knob, in the case that you do circle cut by using a small circle
cutting device.
2）Fix the clutch knob, during cut.
3）Loosen the clutch knob, when it does not use a small circle cutting device.
It becomes the cause of malfunction when a bracket bar is moved while the knob is fixed.
4）Ｄo not put in the hand, clothes etc. absolutely, because there are small gap between the radius
adjustment bar and machine body when cutting small circle. Please pay attention sufficient so
as not to be put.
<Setting the cut speed>
・The cutting speed (R.P.M.) is different by the diameter and the plate thickness of cut piece.
・The specification range of the small circle cutting device of Handy Auto Ⅱare 1.2rpm～4.2rpm.
・Set the cutting speed by using the following cutting chart.
thickness［mm］
speed
［mm/min］
5
5～10
10～15
15～30
660
550～660
490～550
400～490
diameter
30
-
-
-
4.24
40
-
-
3.90
3.18
50
4.20
3.50
3.12
2.55
60
3.50
2.92
2.60
2.12
70
3.00
2.50
2.23
1.82
80
2.63
2.19
1.95
1.59
90
2.33
1.95
1.73
1.41
100
2.10
1.75
1.56
1.27
120
1.75
1.46
1.30
1.06
140
1.50
1.25
1.11
-
160
1.31
1.09
-
-
180
1.17
-
-
-
200
1.05
-
-
-
This chart calculated the turn number based on the speed of a tip ability chart in the case of using straight
type of cutting tip. Therefore, the turn number to cut diameter changes, because cut speed changes in the
case that a divergent tip is used.
And the above turn number is changed by the condition of cutting material, set pressure of gas and etc.
Observe the condition of cut well and decide cut speed.
4.4.4 Straight line cutting rail
This is used for precise straight line cutting.
Loosen the butterfly nut and adjust the position of the
magnet along the slot in the rail bracket according to the
size of the material.
Set the rail parallel with the cutting line
Put the guide roller in the groove on the rail.
Be careful to maintain a horizontal grip position. Otherwise
the guide roller may come off the groove, Spoiling the cut
surface.

Handy Auto PLUS
16
4.4.5 Manual guide lever
This is used to get further stability during the cutting
operation. The use in combination with an auxiliary
wheel is better.
Remove the wheel setting knob. Insert the guide lever
into position.
4.4.6 Large circle cutting attachment
Large circle cutting attachment(φ120－φ500)
(1)Wheel position fixing knob
(2)Stopper
(3)Adjustable holder
(4)Radius fixing bolt
(5)Standard wheel
(6)Guide roller
(7)Magnet
(8)500 mm diameter Bar
●Usage
1)Be sure to use the standard wheel for cutting out large
circles. Raise the guide roller so that it will not touch the
Steel sheet.
2)Fix the 500 mm diameter bar to the main unit with a wing
bolt.
3)Loosen the wheel position fixing knob.
4) Use a magnet center to set the magnet in the center of
the circle to be cut.
5) Set the adjustable holder in the magnet, loosen the
radius fixing bolt, and adjust the cutting radius before
fixing.
◎Use a stopper for in-feed cutting. When a disc is a
product, set the stopper as shown in the photo, and
when the hole is to be made as a product, set the
stopper on the side opposite to the side shown in the
photo with respect to the adjustable holder.
6) Turn on the drive switch, and adjust the speed.
(1)Magnet
(2)Magnet center