Koike MINIMANTIS II User manual

Portable Automatic Gas Cutter
BHA00B22
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.

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.
Cooperation between colleagues in the workplace is essential for safe,
smooth operation. Make sure you read, understand and take all 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 operates the machine can refer to it as
necessary.
■Do not use the machine carelessly without following the instructions in the manual.
■Use the machine only after you have 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 to hand at all times and read it as many times as is 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 have either of the following qualifications:
1. Gas welding foremen’s license
2. Completion of gas welding training course
3. Approval by the Minister of Labor

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
port.
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 damage.
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.

CONTENTS
1. Safety Information·································································································1
1.1 General machine safety precautions ··································································1
1.2 Gas cutting safety precautions·········································································· 3
2. Locations of safety labels························································································5
3. Outline of machine ································································································6
3.1 Features of machine·······················································································6
3.2 Name and function of each section····································································6
3.3 Specifications ·······························································································7
4. Preparation for operation ························································································8
4.1 Contents of package ······················································································8
4.2 Function of each section·················································································· 8
4.3 Machine assembly······················································································· 12
4.4 Preparation for operation··············································································· 13
5. Cutting operation ································································································ 14
5.1 Safety measures prior to operation ·································································· 14
5.2 Ignition and flame adjustment········································································· 14
5.3 Cutting and piercing method··········································································· 15
5.4 Safety measures against backfire and flashback················································· 15
5.5 Cutting operation························································································· 16
5.6 Precautions in diagonal web cutting with an ST torch··········································· 20
6. Maintenance and inspection ·················································································· 21
6.1 Daily inspection··························································································· 21
6.2 Periodical inspection ···················································································· 21
6.3 Maintenance and inspection of quick cock··························································21
7. Trouble shooting································································································· 22
8. Wiring diagram··································································································· 26
9. Assembly drawing of MINIMANTIS Ⅱ································································· 26
10. Parts list·········································································································· 27
10.1 Body unit·································································································· 27
10.2 Torch slide unit ·························································································· 29
10.3 Gas distributor operation plate unit································································· 31
10.4 Rail Straight head type torch unit··································································· 33
11. Cutting Data····································································································· 35

MINIMANTIS-Ⅱ
－7－
3.3 Specifications
Weight: 20Kg (incl. rail)
Body: 15Kg
Rail: 5Kg
Motor: Web side DC motor (1/30 gear assembly) 15W
Flange side DC motor (1/750 gear assembly) 15W
Power source: ±10%
Speed control: Dial operation
Cutting speed: 100~700 mm/min (4″~27.5″)
Drive: Web side Function roller
Flange side Rack and pinion
Cutting thickness: 5~30 mm (0.2″~1.18″)
Tip: 102 (for acetylene) or 106 (for propane) # 0, 1, 2 one each
Gas: Oxygen, acetylene gas, or LPG gas
Rail length (600 rail): 1100 mm (43.3″)
■Cutting dimensions and cutting method
1) Right-angle cutting
A=150-600 mm (6″~24″)
B=150-400 mm (6″~16″)
2) Diagonal web cutting
35°at 400 mm (16″) maximum diagonal web cutting
35°maximum diagonal web cutting
3) Bevel cutting
35°for both web and flange
4) Flange diagonal cutting
30°at 300mm (12″) maximum diagonal flange dimension
30°maximum diagonal flange cutting
●Standard accessories
TIP 102 (for acetylene) or 106 (for propane)
No. 0, 1, 2 1pc each
Power cable: 1 set
Tip cleaner: 1 set
Spanner (A, B, C): 1 set
Screw driver: 1 pc
Hose band: 1 set
Fuse (1A): 2 pcs
Center: 1 set
●Torch up/down unit (Selective)
ST-400, ST-700
●Rail (Selective)
600 rail, 900 rail, 1500 rail

MINIMANTIS-Ⅱ
－8－
4 Preparation for operation
4.1 Contents of package
The contents of the standard package are shown below. Check them carefully before assembling
the machine.
・Body........................................................................1 set
・Gas distributor (quick cock)....................................1 set
・Torch holder............................................................1 set
・Torch .......................................................................1 pc
・Hose
Distributor hose (2 pcs set: 1900 L)......................1 set
Distributor hose (1 pc: 400L).................................1 set
・Power cable (3P×5M).............................................1 pc
・TIP 102 (for acetylene) or 106 (for propane)..........1 pc each
・Tip cleaner ..............................................................1 set
・Screw driver............................................................1 pc
・Spanner (A,B,C)......................................................1 set
・Fuse (1A) ...............................................................2 pcs
・Hose band...............................................................1 set
・Center .....................................................................1 set
4.2 Function of each section
4.2.1 Quick cock (gas distributor)
Adjust the preheating flame and axially flame (pilot burner) once, and the lever operation ensures
the same flame conditions at all times.

MINIMANTIS-Ⅱ
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MINIMANTIS-Ⅱ
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MINIMANTIS-Ⅱ
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MINIMANTIS-Ⅱ
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MINIMANTIS-Ⅱ
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Mounting position
Web dimensions (mm)
1
152~300
2
245~395
3
300~470
4
470~600
Mounting position
Web dimensions (mm)
1
152~300
2
245~395
3
300~470
4
470~600
5
640~770
6
810~900
900 rail
600 rail

MINIMANTIS-Ⅱ
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4.4.4 Caution when using 1500 rail
The web dimension that can be mounted on the 1500rail is 900~1500mm.
When using the 1500 rail, the range that can be cut off of the flange differs from when using the 600 rail
and 900 rail.
ST-400
ST-700
600 rail
150～400
150～700
900 rail
1500 rail
150～315
150～615

MINIMANTISⅡ
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・The ground pin is attached to the rubber plug of a cabtyre cord. Please use a power receptacle with
a ground pin opening.

MINIMANTISⅡ
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