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DAIHEN
Instruction Manual
= Safety and Operation =
First thoroughly read this
manual to operate the machine
correctly.
• Installation, maintenance, and repair of this
welding machine should be made by qualified
persons or persons who fully understand
welding machines for extra safety.
• Operation of this welding machine should be
made by persons who have knowledge and
technical skill to understand the contents of
this manual well and handle the machine safely
for extra safety.
• Regarding safety education, utilize courses and
classes held by head/branch offices of the
Welding Society/Association and the related
societies/associations and qualifying
examinations for welding experts/consultant
engineers.
• After thoroughly reading this manual first,
store it with the warranty in the place where
the persons concerned can read at any time.
Read it again as occasion demands.
• If incomprehensible, contact our offices. For
servicing, contact our local distributor or sales
representatives in your country. Our
addresses and telephone numbers are listed in
the back cover of this Instruction Manual.
TIG Welding Torch (MWP-18)
① NOTES ON SAFETY ...........................S1
② IMPORTANT SAFEGUARDS ............S2
③ HANDLING PRECAUTIONS .............S6
1. Specifications ......................................... 1
2. Standard Incorporated Parts...................... 3
3. Functions of the Main Parts...................... 3
4. Changing Tungsten Electrode .................. 5
6. Requirements............................................ 6
7. What if the Following Occur.................... 7
8. Parts List................................................... 8
Instruction Manual No.
1K2874-E-1
Contents
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Summary of Contents for Daihen MWP-18
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Page 1: Table Of Contents
DAIHEN TIG Welding Torch (MWP-18) Instruction Manual = Safety and Operation = Instruction Manual No. 1K2874-E-1 Contents First thoroughly read this manual to operate the machine ① NOTES ON SAFETY ......S1 correctly. ② IMPORTANT SAFEGUARDS ....S2 • Installation, maintenance, and repair of this ③... -
Page 2: ① Notes On Safety
NOTES ON SAFETY Notes on Safety ● Before operating this product, you should first thoroughly read this Instruction Manual to operate the product correctly. ● Precautions in this Instruction Manual are described to prevent you and others from being injured and suffering loss in your property by having the product operated correctly and safely. - Page 3 IMPORTANT SAFEGUARD Precautions for Safety 2.1 Read, understand, and comply with all safety rules described at the beginning of the welding power source manual in addition to the following before initiating arc welding operations. ● Observe the following to prevent a serious accident that results in WARNING a serious injury or a death 1) This welding torch is designed and manufactured in due consideration of safety, but you should...
- Page 4 IMPORTANT SAFEGUARD (continued) 2.3 All the personnel in and around the working area including an operator should wear appropriate protection to protect themselves from arc rays, spatters, slag and noise produced by welding. ● Install a lightproof wall where arc is generated. WARNING ●...
- Page 5 IMPORTANT SAFEGUARD (continued) 2.5 Prevent fire, explosion, burns and injury caused by heated workpiece, spatters, slag, and arc sparks right after welding as described below. ● Do not weld near flammable materials. ● Watch for fire: keep a fire extinguisher nearby. WARNING ●...
- Page 6 P P P P RINCIPAL SAFETY STANDARDS RINCIPAL SAFETY STANDARDS RINCIPAL SAFETY STANDARDS RINCIPAL SAFETY STANDARDS Safety in Welding and Cutting, ANSI Standard Z49.1, from American Welding Society. Safety and Health Standards, OSHA 29 CFR 1910, from Superintendent of Documents, U.S.
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Page 7: ③ Handling Precautions
HANDLING PRECAUTIONS Handling Precautions 3.1 Coolant ● Be sure to keep the flow of coolant at more than 1 liter per minute. CAUTION (Water pressure of more than 0.1 to 0.3 MPa is required at a torch inlet). Insufficient flow of coolant may damage a welding torch. ●... -
Page 8: Operation
This instruction manual describes the operation and maintenance of TIG Welding Torch MWP-18. Read and understand the entire contents of this manual before use to be able to handle the torch properly. Before operating the torch, be sure to read OPERATION. - Page 9 7/8 -14 UNF 9/16 -18 UNF 5/8 -18 UNF 3/8 -24 UNF 7/16 -20 UNF 3/8 -24 UNF φ 25 ( φ 11 ∼ ) φ 17 ( φ 17.2) φ 24 – 2 –...
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Page 10: Standard Incorporated Parts
Standard Incorporated Parts Make sure that the following are incorporated when unpacked. Table 2 Standard Incorporated Parts Name Part No. Quantity Remarks Collet (3.2) H21B17 Insulator H21B60 For gas lens Lea collet (3.2) H561C05 JISB2401P12 “O” ring (P.12) 3572-012 (Silicon rubber) Nozzle (No.8) H21B44 Ceriated... - Page 11 3.2 Selection of Collet, Collet Body A collet and a collet body are for feeding and holding electrode. They are divided into two kinds depending on whether they have gas lenses. (Ones for gas lenses are incorporated as standards.) Moreover, they are divided into four kinds depending on the electrode diameter to be used with, thus use a right collet and a collet body according to electrode diameter.
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Page 12: Changing Tungsten Electrode
Changing Tungsten Electrode (From φ 3.2 to φ 1.6) 4.1 Parts Necessary for φ 1.6 ● Tungsten electrode ( φ 1.6 – 150 mm) ● Collet body (for φ 1.6) One set each ● Collet (for φ 1.6) ● Lea collet (for φ 1.6) 4.2 How to Change ●... -
Page 13: Requirements
Requirements 6.1 When mounting this torch onto a robot, connect a lead cable bundled with a power cable to the connection part of the workpiece-side welding cable on the welding power source. 6.2 If there is any loosened part in every connection of a torch, heating, a water leak or a gas leak might occur. -
Page 14: Maintenance
Maintenance What if the Following Occur Trouble Probable causes 1. The connections of welding cable of a torch and a workpiece are incomplete. 2. The fuse of a control unit has blown. No arc generated 3. Electromagnetic contactor does not work. 4. -
Page 15: Parts List
Parts List When parts of a torch are worn out or damaged, refer to Figure 3 and Table 6 and place an order for replacement at our sales office or our agency. Be sure to leave the name and part No. or specification when placing an order. - Page 16 Table 7 Parts List (Continued) PART No Description Q'ty Remarks H662B Power cable hose assy H662E Hose sheath φ 1.0×150mm ground 0831-010 Thoriated tungsten electrode optional φ 1.6×150mm ground 0831-016 Thoriated tungsten electrode optional φ 2.4×150mm ground 0831-024 Thoriated tungsten electrode optional φ...
- Page 17 – 10 –...
- Page 18 Instruction Manual of welding torch No. 1 K2874-E-1 First edition first printed on 21 January,1999...
- Page 19 6317 6317 2583 2583 Facs Facs : +1 : +1 9661 9661 DAIHEN EUROPE GmbH. DAIHEN ASIA（THAILAND）CO.,LTD Broichhofstrasse 7, Broichhofstrasse 7, Broichhofstrasse 7, Broichhofstrasse 7, 60/86 Mu 19, 60/86 Mu 19, 60/86 Mu 19, 60/86 Mu 19, 40882 Ratingen 1, 40882 Ratingen 1, Navanakorn Industrial Estate Phase 3.