Table of Contents
Troubleshooting
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Summary of Contents for Miller XR-Pistol-Pro
- Page 1 OM-254824L 2023−11 Processes MIG (GMAW) Welding Description Semi-Automatic, Air/Water- Cooled, MIG (GMAW) Welding XR - Pistol - Pro ™ (Air And Water-Cooled Guns) File: MIG (GMAW) Visit our website at www.MillerWelds.com...
- Page 2 We know you don’t have time to do it any other way. That’s why when Niels Miller first started building arc welders in 1929, he made sure his products offered long-lasting value and superior quality.
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Page 3: Table Of Contents
TABLE OF CONTENTS SECTION 1 −SAFETY PRECAUTIONS FOR GMAW WELDING GUNS − READ BEFORE USING ..1-1. Symbol Usage ............... . 1-2. -
Page 5: Section 1 −Safety Precautions For Gmaw Welding Guns − Read Before Using
SECTION 1 −SAFETY PRECAUTIONS FOR GMAW WELDING GUNS − READ BEFORE USING SR7 (MIG) 2022-01 Protect yourself and others from injury — read, follow, and save these important safety precautions and operating instructions. 1-1. Symbol Usage DANGER! − Indicates a hazardous situation which, if Indicates special instructions. -
Page 6: California Proposition 65 Warnings
NOISE can damage hearing. READ INSTRUCTIONS. D Read and follow all labels and the Owner’s Noise from some processes or equipment can damage hearing. Manual carefully before installing, operating, or servicing unit. Read the safety information at D Check for noise level limits exceeding those the beginning of the manual and in each specified by OSHA. -
Page 7: Utilisation
SECTION 2 − MESURES DE SÉCURITÉ VISANT LES PISTOLETS DE SOUDAGE GMAW − À LIRE AVANT UTILISATION SR7(MIG)_2022−01_fre Pour écarter les risques de blessure pour vous−même et pour autrui — lire, appliquer et ranger en lieu sûr ces consignes relatives aux précautions de sécurité... -
Page 8: Principal Safety Standards
D Avoir recours à des écrans protecteurs ou à des rideaux pour D Utiliser des bouche-oreilles ou des serre-tête antibruit approuvés si protéger les autres contre les rayonnements les éblouissements le niveau de bruit est élevé. et les étincelles ; prévenir toute personne sur les lieux de ne pas D Avertir les personnes à... -
Page 9: Section 3 − Definitions
SECTION 3 − DEFINITIONS 3-1. Additional Safety Symbols And Definitions Some symbols are found only on CE products. Warning! Watch Out! There are possible hazards as shown by the symbols. Safe1 2012−05 3-2. Miscellaneous Symbols And Definitions Degree Of Primary Current Volts Protection Amperes... -
Page 10: Section 4 − Specifications
Electrode Wire Feed Net Weight Wire Diameter Speed Range (Torch Only) Capacity XR-Pistol-Pro 200 A at 100% Duty Cycle .030 To 1/16 in. 70 To 900 ipm 2.2 lb (1 kg) (Air-Cooled) 250 A at 60% Duty Cycle (0.8 To 1.6 mm) (1.8 To 23 mpm) -
Page 11: Section 5 − Installation
SECTION 5 − INSTALLATION Be sure that contact tip, liner, and drive rolls are correct for wire size and type. See Parts List to change parts as needed. 5-1. Connections With A Constant Voltage (CV) Or Constant Current/Constant Voltage (CC/CV) Welding Power Source Having A 14-Socket Receptacle Or A Integrated Welding Power Source Having A 10-Socket Receptacle Ref. -
Page 12: Air-Cooled Gun Connections
5-2. Air-Cooled Gun Connections Left Side Ref. T0017 / 246 218-A Gun Control Cable Gun Bushing Loosen gun securing knob and insert gun power pin through gun bushing until it Insert plug into Gun Control receptacle, and Gun Securing Knob bottoms against drive casting. -
Page 13: Water-Cooled Gun Connections
5-3. Water-Cooled Gun Connections Turn on coolant supply before welding or gun will be dam- aged. Gun Control Cable Insert plug into Gun Control receptacle, and tighten threaded collar. Gun Power Pin Gun Securing Knob Gun Bushing Drive Casting Loosen gun securing knob, and insert gun power pin through gun bushing until it bottoms against drive casting. -
Page 14: Millermatic 350/350P Water Cooled Gun Connections
5-4. Millermatic 350/350P Water Cooled Gun Connections Ref. T0021 Tools Needed: 9/16 in. Water In Hose bottoms against block. Tighten knob. Close Turn on coolant supply before welding and latch door. or gun will be damaged. Connect to coolant supply with supplied Water Out Hose Coolant Supply coupler and water hose (left-hand threads). -
Page 15: Threading Welding Wire Through Millermatic 350/350P
5-5. Threading Welding Wire Through Millermatic 350/350P Wire Spool Welding Wire Inlet Wire Guide Drive Roll Intermediate Wire Guide Outlet Wire Guide Pressure Adjustment Knob Gun Conduit Cable Lay gun cable out straight. Tools Needed: Hold wire tightly to keep it IMPORTANT! from unraveling. -
Page 16: Threading Welding Wire Through Xr-Control Feeder
5-6. Threading Welding Wire Through XR-Control Feeder Cable Assembly Lay cable assembly out straight. Jog Switch Tools Needed: Push Jog switch up to feed wire through cable assembly. Torque Switch Select proper push feeder torque set- ting for wire size being used. Use low torque for .030 in. -
Page 17: Adjusting Tension At Feeder
5-7. Adjusting Tension At Feeder Tools Needed: Hold wire tightly to keep it from unraveling. 6 in. (150 mm) Pull and hold wire; cut off end. Tension Arm Open tension arm. Install proper size drive rolls. Thread wire thru inlet guide, along drive roll groove, and into wire conduit. -
Page 18: 10-Pin Plug Information
5-8. 10-Pin Plug Information Pin* Pin Information Electrode sense lead Motor 0 to +24 volts DC with respect to pin C Trigger Motor Common Trigger Wire speed Ref. +9 volts DC Wire speed com Wire speed 0 to +9 volts DC with respect to pin H Gun sensing resistor with respect to pin H Not used 5-9. -
Page 19: Threading Welding Wire Through Gun
5-10. Threading Welding Wire Through Gun Refer to wire feeder manual for instructions on feeding wire through feeder. Pressure Arm Lever To release drive roll pressure, pull back on pressure arm lever. While pulled back, shift to left onto shoulder to lock into place. Welding wire is electrically live when gun trigger is used to jog wire. -
Page 20: Section 6 − Operation
SECTION 6 − OPERATION 6-1. Gun Controls Trigger Press trigger to energize welding power source contactor (if applicable), start shielding gas flow, and begin wire feed. Wire Speed Control Use control to fine adjust wire feed speed set on wire feeder Weld Speed control. -
Page 21: Shielding Gas
Coolant No. 043 809**; Distilled Or Deionized Water OK ° ° Above 32 F (0 Coolant *HF: High Frequency Current ° ° **MILLER coolants protect to -37 F (-38 C) and resist algae growth. Ref. 150 755-A OM-254 824 Page 15... -
Page 22: Section 7 − Maintenance & Troubleshooting
SECTION 7 − MAINTENANCE & TROUBLESHOOTING Disconnect power Maintain more often before maintaining. during severe conditions. 3 Months Clean Replace Replace Damaged Or Damage Tighten Unreadable Gas Hose Weld Labels Terminals Repair Or Replace Cracked Cables And Cords 6 Months Blow Out Or Clean Vacuum Inside... -
Page 23: Changing Gun Contact Tip
7-2. Changing Gun Contact Tip Remove nozzle Nozzle FasTip Unscrew FasTip. Install new FasTip. Ref. 150 437-A 7-3. Gun Drive Assembly Maintenance Lever Arm Remove pressure on wire by pulling lever arm forward. Pull to left to lock into place. Retract wire onto spool. -
Page 24: Replacing Head Tube Liner
7-4. Replacing Head Tube Liner Turn Off coolant supply before removing head tube water-cooled gun. The standard head tube liner (yellow) will accommodate wire diameters from 3/64 in. - 1/16 in. wire size. When changing wire size, change gun drive roll. Cover Head Tube Remove head tube from gun. -
Page 25: Troubleshooting
7-6. Troubleshooting Disconnect power before troubleshooting. Trouble Remedy Pressing gun trigger does not energize Secure plug from gun control cable into Gun Control receptacle on feeder feeder. Welding wire is not energized. (see Section 5-2 or 5-3 as applicable). Shielding gas does not flow. Have nearest Factory Authorized Service Agent check optional water flow switch, if applicable. -
Page 26: Section 8 − Electrical Diagrams
SECTION 8 − ELECTRICAL DIAGRAMS Ref. 256 014-C Figure 8-1. Circuit Diagram For XR Pistol Pro Gun Notes OM-254 824 Page 20... - Page 27 Effective January 1, 2023 (Equipment with a serial number preface of ND or newer) This limited warranty supersedes all previous Miller warranties and is exclusive with no other guarantees or warranties expressed or implied. LIMITED WARRANTY − Subject to the terms and conditions Tregaskiss Guns (No Labor) below, Miller Electric Mfg.
- Page 28 Contact the Delivering Carrier to: File a claim for loss or damage during shipment. For assistance in filing or settling claims, contact your distributor and/or equipment manufacturer’s Transportation Department. © ORIGINAL INSTRUCTIONS − PRINTED IN USA 2015 Miller Electric Mfg. Co. 2015−01...
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