PT-32EH PLASMA ARC CUTTING TORCHES Instruction Manual (GB) 0558003746
BE SURE THIS INFORMATION REACHES THE OPERATOR. YOU CAN GET EXTRA COPIES THROUGH YOUR SUPPLIER. These INSTRUCTIONS are for experienced operators. If you are not fully familiar with the principles of operation and safe practices for arc welding and cutting equipment, we urge you to read our booklet, "Precautions and Safe Practices for Arc Welding, Cutting, and Gouging," Form 52-529. Do NOT permit untrained persons to install, operate, or maintain this equipment.
TABLE OF CONTENTS SECTION PARAGRAPH TITLE PAGE SECTION 1 SAFETY ............................................................................................................ 61 SECTION 2 2.1 2.2 DESCRIPTION ................................................................................................. 63 General ............................................................................................................. 65 Scope ........................................................................
TABLE OF CONTENTS ii
SECTION 1 SAFETY Full responsibility for safety of personnel working on or near system rests on user of ESAB Welding Equipment. Wrong operation can lead to abnormal situation, injure operator and damage equipment.
SECTION 1 SAFETY ! WARNING ! ARC WELDING AND CUTTING CAN BE INJURIOUS TO YOURSELF AND OTHERS. TAKE PRECAUTIONS WHEN WELDING OR CUTTING. ASK YOUR EMPLOYER FOR SAFETY PRACTICES THAT SHOULD BE BASED ON MANUFACTURER’S HAZARD DATA. ELECTRIC SHOCK - Can kill - Install and earth welding equipment in accordance with obligatory standards. - Do not touch live electrical parts or electrodes with bare skin, wet gloves or wet clothes. - Insulate yourself from earth and workpiece. - Ensure your work position is safe.
SECTION 2 DESCRIPTION PT-32EHTorch Designed for superior cutting performance and ease of handling, the PT-32EH produces clean, exceptionally high quality cuts. ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Most compact 90 amp torch on the market Excellent cutting capacity - cuts up to 1-1/2 in. (38mm) Uses shop air, cylinder air or nitrogen for superior versatility Pilot arc starting - even starts through paint Choice of 25 ft (7.6m). or 50ft. (15.
SECTION 2 DESCRIPTION Optional Accessories: 50/70 amp Spare Parts Kit (PC-875/1125) ..................0558002822 70 amp Spare Parts Kit (PC-1500) .............................0558003508 90 amp Spare Parts Kit (PC-1500) .............................0558003062 Plasma Flow Measuring Kit: This valuable troubleshooting tool allows measurement of the actual plasma gas flow through the torch ...........
SECTION 2 DESCRIPTION 2.1 GENERAL 2.2 SCOPE The patent pending PT-32EH is a manual torch with a 90° head designed for use with several Plasma Arc Cutting Packages using clean, dry air as the plasma gas. The service line lengths available with the PT32EH torch are 25 feet (7.6 m) and 50 feet (15.2 m). The PT-32EH torch is rated to operate at a maximum of 90 amperes at 100% duty cycle.
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SECTION 3 INSTALLATION 3.1 FITTING THE PT-32EH TORCH 5. Connect the Pilot Arc Leads. Make sure the power cable connection is wrench-tight. 6. Plug in the switch leads to the torch switch receptacle on the output terminal board. Before any maintenance is attempted on this torch, make sure the power switch on the console is in the "OFF" position and the primary input is deenergized. 7. Reassemble the access door to the power source. Retighten Strain Relief to secure power cable, but do not overtighten.
SECTION 3 INSTALLATION 3.3 ASSEMBLY 3.2 GENERAL Install PT-32EH front end parts as shown in Figure 32. Make sure power switch on console is in the "OFF" position and primary input power is deenergized. The torch head contains a gas flow check valve and a nozzle back pressure tap that act in conjunction with circuitry within the power source. This system prevents the torch from being energized with high voltage if the torch switch is accidentally closed when the shield is removed.
SECTION 4 OPERATION 4.1 STEEL HEAT SHIELD GUARDS (Refer to Figure 4-1) Drag Cutting with the PT-32EH Torch If drag cutting is desired, attach ESAB's standoff guide (P/N 0558002393). For thin material, under 3/8" (9mm), remove 50-70 amp or 90 amp nozzle from torch head, insert ESAB's 40 amp nozzle (P/N 0558002908). Lower current level to 40 amps or lower. ADJUST GUIDE BY TURNING IN A CLOCKWISE DIRECTION ONLY. THIS WILL PREVENT ACCIDENTAL LOOSENING OF SHIELD.
SECTION 4 OPERATION 4.2 CUTTING WITH THE PT-32EH Use the following procedures to cut with the PT-32EH torch (Figure 4-4). ELECTRIC SHOCK can kill. • Do NOT operate the unit with the cover removed. • Do NOT apply power to the unit while holding or carrying the unit. • Do NOT touch any torch parts forward of the torch handle (nozzle, heat shield, electrode, etc.) with power switch on. 1. 2. 3. 4. 5. ARC RAYS can burn eyes and skin; NOISE can damage hearing. • Wear welding helmet with No.
SECTION 5 MAINTENANCE 5.1 GENERAL b. Nozzle: Replace if the orifice is clogged, nicked, or out-of-round. c. Electrode: When replacing the nozzle, always inspect the electrode for wear. If more than .06" (1.5mm) of electrode Hafnium has eroded, replace the electrode. If the electrode is used beyond this recommended wear limit, damage to the torch and power source may occur. Nozzle life is also greatly reduced when using the electrode below the recommended limit. Refer to Figure 5-1.
SECTION 5 5.3 MAINTENANCE REMOVING / REPLACING TORCH HEAD AND SWITCHES FROM SERVICE LINE 4. If the torch head is to be replaced, remove the power cable from the Torch Head by using two wrenches to prevent twisting brass tube. Before any maintenance is attempted on this torch, make sure the power switch on the console is in the "OFF" position and the primary input is deenergized. 1. Remove six screws from handle. Separate the two halves of the handle POWER CABLE 5.
SECTION 6 REPLACEMENT PARTS 6.1 General Replacement parts may be ordered from your ESAB distributor or from: Replacement parts are illustrated on the following figures. When ordering replacement parts, order by part number and part name, as listed. Always provide the series or serial number of the unit on which the parts will be used. The serial number is stamped on the unit nameplate. ESAB Welding & Cutting Products Attn.: Customer Service Dept.
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Revision History Original Release on February 13, 2003 05/2003 - revised fuse part number from 0558001379 to 0558003075.
ESAB subsidiaries and representative offices Europe AUSTRIA ESAB Ges.m.b.H Vienna--Liesing Tel: +43 1 888 25 11 Fax: +43 1 888 25 11 85 BELGIUM S.A. ESAB N.V. Brussels Tel: +32 2 745 11 00 Fax: +32 2 726 80 05 THE CZECH REPUBLIC ESAB VAMBERK s.r.o. Prague Tel: +420 2 819 40 885 Fax: +420 2 819 40 120 DENMARK Aktieselskabet ESAB Copenhagen--Valby Tel: +45 36 30 01 11 Fax: +45 36 30 40 03 FINLAND ESAB Oy Helsinki Tel: +358 9 547 761 Fax: +358 9 547 77 71 FRANCE ESAB France S.A.
