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REV 15b

Owner’s Manual & Safety Instructions

Save This Manual

 

Keep this manual for the safety warnings and precautions, assembly, 

operating, inspection, maintenance and cleaning procedures.  Write the product’s serial number in the 

back of the manual near the assembly diagram (or month and year of purchase if product has no number). 

Keep this manual and the receipt in a safe and dry place for future reference.

When unpacking, make sure that the product is intact 

and undamaged.  If any parts are missing or broken, 

please call 1-888-866-5797 as soon as possible.

Copyright

©

 2008 by Harbor Freight Tools

®

.  All rights reserved.  

No portion of this manual or any artwork contained herein may be reproduced in 

any shape or form without the express written consent of Harbor Freight Tools.  

Diagrams within this manual may not be drawn proportionally.  Due to continuing 

improvements, actual product may differ slightly from the product described herein.  

Tools required for assembly and service may not be included.

Read this material before using this product. 

Failure to do so can result in serious injury. 

SAVE THIS MANUAL.

Summary of Contents for 98958

Page 1: ...e reference When unpacking make sure that the product is intact and undamaged If any parts are missing or broken please call 1 888 866 5797 as soon as possible Copyright 2008 by Harbor Freight Tools All rights reserved No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools Diagrams within this man...

Page 2: ...caution are factors which cannot be built into this product but must be supplied by the operator Work Area Safety 1 Keep your work area clean and well lit Cluttered benches and dark areas invite accidents 2 Keep bystanders children and visitors away while operating Distractions can cause you to lose control Protect others in the work area from intense heat Do not allow others close enough to look ...

Page 3: ... all times Proper footing and balance enables better control in unexpected situations 4 INHALATION HAZARD Welding and Cutting Produce TOXIC FUMES Exposure to welding or cutting exhaust fumes can increase the risk of developing certain cancers such as cancer of the larynx and lung cancer Also some diseases that may be linked to exposure to welding or cutting exhaust fumes are Early onset of Parkins...

Page 4: ...ly mark empty Contact local solid waste authorities for instructions on correct disposal or recycling of empty cylinders 6 KEEP WRENCH ON ACETYLENE CYLINDER S VALVE whenever cylinder is in use to allow quick shutoff in case of emergency Equipment Inspection 1 DO NOT USE FLAME TO DETECT LEAKS 2 INSPECT BEFORE EVERY USE Look for the following and do not use kit if any damage is noted a Inspect the t...

Page 5: ...VER check for leaks using a flame If the odor continues do not use the Torch Call acetylene supplier for assistance 11 Read and understand all instructions and safety precautions as outlined in the manufacturer s manual for the material you will weld or cut 12 After use bleed lines and store all components out of reach of children and other untrained persons Torches are dangerous in the hands of u...

Page 6: ...ng all text under subheadings therein before set up or use of this product TO PREVENT SERIOUS INJURY FROM EXPLOSION Turn the Oxygen and Acetylene Torch Valves fully clockwise to close oxygen first and acetylene second before making any adjustments or performing any inspection or service to this product Note For additional information regarding the parts listed in the following pages refer to the A...

Page 7: ...sembly Step 5 Torch Handle Setup 6 Welding Nozzle Setup Connect the Welding Nozzle to the Torch Handle Welding Nozzle Torch Handle Assembly Step 6 Welding Setup 6a Cutting Attachment Setup WARNING BEFORE CONNECTING make sure the two O Rings on the end of the Cutting Attachment are not damaged or missing otherwise gases will mix inside the Torch Handle and result in flashback or backfires Connect t...

Page 8: ...RESSURE Acetylene Regulator 10 PSI Oxygen Regulator 20 PSI Leak Test 1 Step 4 Set Testing Pressures 5 Check all connections for leaks using soapy water If leaks are found tighten connections If a leak persists discontinue use and call gas supplier If no leaks are found with this test move on to the Gauge Monitoring test Tool Set Up 3 of 3 Second Leak Test Gauge Monitoring This test detects minor l...

Page 9: ...o not change the test is completed and the system has no leaks b If the connection still leaks try with a different cylinder c If the connection leaks with the different cylinder have the Regulator examined by a qualified technician Oxygen shown Procedure also applies to acetylene leak after Regulator If Delivery gauge moves as shown THEN If Delivery Pressure decreases The leak is at the Regulator...

Page 10: ...ng nozzle will be needed Note Welding the thicker metals noted below will require special techniques such as edge chamfering that are outside the scope of this manual Table A Welding Nozzle Flow Data Metal Thickness inches Nozzle Size Tip Orifice Diameter inches Oxygen Pressure PSI Acetylene Pressure PSI Acetylene CFH 1 32 000 0 024 3 5 3 5 1 2 3 64 00 0 028 3 5 3 5 1 5 3 1 16 0 0 031 3 5 3 5 1 7 ...

Page 11: ...d do not use tool until repaired 1 Set up for welding according to instructions on pages 6 9 2 Close both valves on the Torch Handle securely Acetylene GAS Torch Valve Oxygen OXY Torch Valve Welding Step 2 Close Valves 3 Adjust the Acetylene and Oxygen Regulators to their proper working pressures see Table A on page 10 DO NOT EXCEED 15 PSI ACETYLENE PRESSURE Acetylene Regulator Acetylene Delivery ...

Page 12: ...center of the flame has a white core with little or no halo This is the neutral flame needed for operation as shown in Welding Step 7 illustration below center c Too Much Oxygen If you open the Oxygen Torch Valve too far the large section of the flame will be bluish orange and the inner core will be small as shown in Welding Step 7 illustration below right Close the Oxygen Torch Valve slightly unt...

Page 13: ...auges to 0 Shutdown Step 3 Open Acetylene Valve 4 Open the Oxygen Torch Valve counterclockwise to allow all the pressure to bleed out Note If the tank gauge still has pressure the Oxygen Regulator needs to be opened Oxygen OXY Torch Valve Bleed pressure on both gauges to 0 Shutdown Step 4 Open Oxygen Valve 5 After releasing pressure turn the Acetylene Pressure Adjusting Screw counterclockwise and ...

Page 14: ...ded Table B Cutting Tip Flow Data Cutting Thickness inches Standard Nozzle Size Cutting Oxygen Pressure PSI Acetylene Pressure PSI Speed IPM 1 2 0 30 35 3 5 20 24 3 4 1 30 35 3 5 17 21 1 1 2 2 40 45 3 7 13 17 2 1 2 3 45 50 4 10 10 13 3 4 45 50 5 10 9 12 The Cutting Attachment is attached to the Torch Handle and a Cutting Tip is attached to the end of the Cutting Attachment Pre heat Oxygen Valve Ad...

Page 15: ...l repaired 1 Set up for cutting according to instructions on pages 6 9 2 Close all valves on the Torch Handle and Cutting Attachment securely Pre heat Oxygen Valve Acetylene GAS Torch Valve Oxygen OXY Torch Valve Cutting Step 2 Close Valves 3 Adjust the Acetylene and Oxygen Regulators to their proper working pressures see Table B on page 14 DO NOT EXCEED 15 PSI ACETYLENE PRESSURE Acetylene Regulat...

Page 16: ... has a white core with little or no halo This is the neutral flame needed for operation as shown in Cutting Step 8 illustration below center c Too Much Oxygen If you open the Pre heat Oxygen Valve too far the large section of the flame will be bluish orange and the inner core will be small as shown in Cutting Step 8 illustration below right Close the Pre heat Oxygen Valve slightly until you achiev...

Page 17: ... the Oxygen Torch Valve counterclockwise and open the Pre heat Oxygen Valve counterclockwise to allow all the pressure to bleed out Note If the tank gauge still has pressure the Oxygen Regulator needs to be opened Pre heat Oxygen Valve Oxygen OXY Torch Valve Bleed pressure on both gauges to 0 Shutdown Step 4 Open Oxygen Valves 5 After releasing pressure turn the Acetylene Pressure Adjusting Screw ...

Page 18: ...ody of the Torch use a clean dry cloth Do not immerse any part of the Torch in ANY liquid Do not use solvents or other flammable agents to clean the Torch MAINTENANCE CHART Maintenance Type Before Use After Use Inspect tool for damage X X Use tip cleaner to clean tip opening X X Wipe off with clean dry cloth NEVER USE SOLVENTS TO WIPE DOWN THIS TORCH X Troubleshooting Problem Possible Causes Likel...

Page 19: ...llustration purposes only and are not available individually as replacement parts PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTURER AND OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY NEITHER THE MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE ...

Page 20: ...lve Spring 101A83 O8 Damper 101A82 O9 Valve 101A81C O10 Nozzle 101A80 O11 Plunger 76A74 O12 Diaphragm Asm VMA18A O12A Nut 101A73 O12B Diaphragm Plate 101A74 Part Description Order Code O12C Diaphragm VMA10A O12D Centralizer 101A77 O13 Gasket VMA09 O14 Adjusting Spring 76A69 O15 Spring Button 101A68 O16 Bonnet VMA08 O17 Label VMA14 O18 Adjusting T Screw VMA24 O19 Outlet Adapter 25A76 O20 Safety Val...

Page 21: ...rder Code ASM H Torch Handle VM 221 H1 Cover VMCWA49 H2 Torch Head VMCWA30 H3 Handle VMCWA31 H4 Inner Tube VMCWA32 H5 Tail VMCWA33 H6 Oxygen Valve Body VMCWA34 H7 Gas Valve Body VMCWA35 Part Description Order Code H8 Valve Stem Asm VMCWA15b H8A Valve Stem VMCWA16 H8B Washer VMCWA17 H8C Nut VMCWA18 H8D Adjusting Knob VMCWA19A H9 Label OX VMCWA19B H10 Label AC VMCWA19C ...

Page 22: ...nner Tube A VMCWA10 C9 Inner Tube B VMCWA11 C10 Spiral VMCWA13 C11 Inner Tube C VMCWA12 C12 O ring CMA17D C13 PTFE Washer VMCWA09 C14 Spring VMCWA14 C15 Body VMCWA15 Part Description Order Code C16 Valve VMCWA20 C17 HP Spring VMCWA21 C18 Washer VMCWA22 C19 Valve Cap VMCWA23 C20 Lever VMCWA24 C21 Spiral Pin VMCWA25 C22 Coupling Nut VMCWA27 C23 Cone End VMCWA26 C24 O ring Big VMCWA28 C25 O ring Smal...

Page 23: ...ge 25A52DD A4 Inlet Nut 25A16AB A5 Inlet Spigot 25A06 A6 Filter 25A22 A7 Valve Spring 101A83 A8 Damper 101A82 A9 Valve 101A81 A10 Nozzle 101A80 A11 Plunger 76A74 Part Description Order Code A12 Diaphragm Asm VMA18A A12A Nut 101A73 A12B Diaphragm Plate 101A74 A12C Diaphragm VMA10A A12D Centralizer 101A77 A13 Gasket VMA09 A14 Adjusting Spring 76A70A A15 Spring Button 101A67 A16 Bonnet VMA08 A17 Labe...

Page 24: ...so the above limitation of exclusion may not apply to you THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS To take advantage of this warranty the product or part must be returned to us with transportation charges prepaid Proof of purchase date and an explanation of the complaint must accompany the merchandise If o...

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