Graco WB3000 Instructions - Parts Manual

Isolation system & pro
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Instructions - Parts
WB3000 Isolation System & Pro
Air-assisted spray system for use when electrostatically spraying conductive, waterborne fluids that meet
at least one of the conditions for non-flammability listed on page 3.
For professional use only.
Important Safety Instructions
Read all warnings and instructions in this manual. Save these
instructions.
3000 psi (21 MPa, 210 bar) Maximum
Fluid Working Pressure
100 psi (0.7 MPa, 7 bar) Maximum Air
Working Pressure
See page 3 for model part numbers and
approval information.
PROVEN QUALITY. LEADING TECHNOLOGY.
3A2497C
EN

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Summary of Contents for Graco WB3000

  • Page 1 Instructions - Parts WB3000 Isolation System & Pro 3A2497C Air-assisted spray system for use when electrostatically spraying conductive, waterborne fluids that meet at least one of the conditions for non-flammability listed on page 3. For professional use only. Important Safety Instructions Read all warnings and instructions in this manual.
  • Page 2: Table Of Contents

    Contents Models............... 3 Repair..............47 Prepare the Gun for Service ......47 Warnings ............4 Air Cap, Spray Tip, and Fluid Seat Housing Gun Overview ............ 7 Replacement ........48 How the Electrostatic AA Spray Gun Electrode Replacement ........ 49 Works ..........
  • Page 3: Models

    500 mJ. Ta 0°C – 50°C Part No. Model Description 24N551 WB3000 Waterborne Isolation Enclosure 24N550 with standard electrostatic air-assisted spray gun H60T18, grounded air hose 235070, and unshielded waterborne fluid hose 24M508. 24P632 WB3000 Waterborne Isolation Enclosure 24N550 with smart electrostatic air-assisted spray gun H60M18, grounded air hose 235070, and unshielded waterborne fluid hose 24M508.
  • Page 4: Warnings

    • Interlock the gun air supply with the voltage isolation system to shut off the air supply anytime the isolation system enclosure is opened. • Only use the red-colored Graco electrically conductive gun air hose with this gun. Do not use black or gray-colored Graco air hoses.
  • Page 5 Warnings WARNING FIRE AND EXPLOSION HAZARD Combustible dust in work area can ignite or explode. To help prevent fire and explosion: • Fluids used must meet the following flammability requirements: • FM, FMc Approved: Material does not sustain burning in accordance with the Standard Test Method for Sustained Burning of Liquid Mixtures, ASTM D4206.
  • Page 6 Warnings WARNING PERSONAL PROTECTIVE EQUIPMENT Wear appropriate protective equipment when in the work area to help prevent serious injury, including eye injury, hearing loss, inhalation of toxic fumes, and burns. This protective equipment includes but is not limited to: • Protective eyewear, and hearing protection. •...
  • Page 7: Gun Overview

    flow to the alternator. The atomizing air adjustment valve does not control pattern width. To change The Graco warranty and approvals are void if the pattern width, use a new tip size, or use the fan electrostatic spray gun is connected to a non-Graco adjustment to narrow the pattern width.
  • Page 8: Controls, Indicators, And Components

    Description Purpose Atomizing Air Adjusts atomizing air flow. Adjustment Air Swivel 1/4 npsm(m) left-hand Valve Inlet thread, for Graco red-colored grounded Trigger Safety Locks trigger to prevent air supply hose. Lock gun from spraying. Fluid Hose Graco waterborne fluid ES On-Off...
  • Page 9: Smart Guns

    Gun Overview Smart Guns Voltage Adjustment Switch The Smart Gun module displays spraying voltage, current, alternator speed, and the voltage setting (low or high). It also allows the user to change to a lower The voltage adjustment switch (VA) allows the spraying voltage.
  • Page 10 Gun Overview Error Display NOTE: After 2 seconds of inactivity the display will return to the Operating Screen. If the Smart module loses communication with NOTE: The low voltage setting may be locked. See the power supply, the Error display appears, the Lock Symbol, page Hz indicator turns red, and the Smart module is disabled.
  • Page 11 Gun Overview Table 1 . Key for Figs. 2–9. Item Description Purpose Two-position switch sets smart gun Voltage Adjustment Switch voltage to low setting (LO) or high setting (HI). This switch is functional in Operating Mode and in Diagnostic Mode. Low Voltage Mode Indicator Lights (blue) when the smart gun is set to Low Voltage.
  • Page 12 Gun Overview Item Description Purpose Alternator Speed Display In Diagnostic Mode, Hz level is displayed as a number. See Fig. 8. Alternator Speed Indicator In Operating Mode, indicator color varies to show the alternator speed status: • green indicates the alternator speed is at the correct level.
  • Page 13 Gun Overview Diagnostic Mode Diagnostic Mode includes four screens which display gun data: • Voltage (kiloVolts) Screen • Current (microAmperes) Screen • Alternator Speed (Hertz) Screen • Low Voltage Lock Screen NOTE: You must be in Operating Mode to adjust the low voltage setting;...
  • Page 14 Gun Overview Alternator Speed (Hertz) Screen Low Voltage Lock Screen The Alternator Speed (Hertz) Screen is the third The Low Voltage Lock Screen is the fourth screen in screen in the Diagnostic Mode. See Fig. 8, and Table the Diagnostic Mode. See Fig. 9, and Table 1 on 1 on page 11.
  • Page 15: Installation

    Provide fresh air ventilation to reduce the risk of fire void if the electrostatic spray gun is connected to a or explosion caused by the buildup of flammable or non-Graco voltage isolation system or if the gun is toxic vapors when spraying, flushing, or cleaning operated above 60 kV.
  • Page 16: Air Supply Line

    finished workpiece and can cause the gun to malfunction. 2. The WB3000 system includes a bleed-type air regulator (N) on the gun air supply line (P), to control air pressure to the gun.
  • Page 17: Connect The Waterborne Fluid Hose

    (W). NOTE: The Graco warranty and approvals are void if the electrostatic spray gun is connected to a non-Graco voltage isolation system or if the gun is operated above 60 kV. Figure 11 Unshielded Hose 24M508 Connection at WB3000 Enclosure...
  • Page 18 Installation Figure 12 Typical Installation, Pro Xp Waterborne System 3A2497C...
  • Page 19 Locking Screw (part of Graco Red Grounded door assembly) Air Hose (left-hand Accessory Bleed-Type threads) Air Shutoff Valve Gun Air Hose Ground * These items are required for safe operation. They Wire are included with the WB3000 system. Graco Waterborne Fluid Hose 3A2497C...
  • Page 20: Agitator Kit Accessory

    Installation Agitator Kit Accessory To add an agitator to the Graco isolation system, order Part No. 245895. See 245895 Agitator Kit, page for the kit parts list. 1. Discharge the system voltage (see Fluid Voltage Discharge and Grounding Procedure, page 25).
  • Page 21: Gun Setup

    Electrostatic Air-Assisted Spray Gun: • ground the gun by connecting the red-colored Graco Grounded Air Hose to the gun, and connecting the air hose ground wire to a true earth ground. See Check Gun Electrical Grounding, page 3A2497C...
  • Page 22 If gloves are necessary, wear the conductive gloves supplied with the gun. If non-Graco gloves are worn, cut off fingers or palm area of gloves to ensure your hand contacts the grounded gun handle.
  • Page 23: Check Gun Electrical Grounding

    Failure to follow this warning could cause fire, explosion, and electric shock and result in serious injury and property damage. Graco Part No. 241079 Megohmmeter is available as an accessory to check that the gun is properly grounded. 1. Have a qualified electrician check the electrical grounding continuity of the spray gun and air hose.
  • Page 24: Flush Before Using Equipment

    Gun Setup 7. If the resistance is greater than 100 ohms, check the tightness of the ground connections and be sure the air hose ground wire is connected to a true earth ground. If the resistance is still too high, replace the air hose. 8.
  • Page 25: Operation

    1. Turn the ES ON/OFF valve OFF and wait 30 seconds, to allow the voltage to discharge ⃞ The Graco waterborne fluid hose is in good through the bleed resistor. condition with no cuts or abrasions of the inner layer. Replace hose if damaged.
  • Page 26: Pressure Relief Procedure

    Operation Pressure Relief Procedure 5. Disengage the trigger lock. This equipment stays pressurized until pressure is manually relieved. To help prevent serious injury from pressurized fluid, such as skin injection, 6. Trigger the gun into a grounded metal waste splashing fluid and moving parts, follow the container to relieve the fluid pressure.
  • Page 27: Fill The Fluid Supply

    Operation Fill the Fluid Supply 6. Clean up any fluid spills in the enclosure, using a soft cloth and a non-flammable, compatible solvent. 1. Follow the Fluid Voltage Discharge and Grounding Procedure, page 7. Fill the supply pail with fluid and return it to the enclosure.
  • Page 28: Adjust The Spray Pattern

    Operation Adjust the Spray Pattern To reduce the risk of fire and explosion, fluids used To reduce the risk of an injury, follow the must meet the following flammability requirements: Pressure Relief Procedure, page 26 whenever you are instructed to relieve the pressure. •...
  • Page 29 Operation 3. Check gun resistance. See 11. Close the atomizing air adjustment valve (G) and Test Gun Resistance, page the fan air adjustment valve (F). 4. Follow all steps under Grounding, page 12. Check that the ES On-Off switch is OFF (O). 5.
  • Page 30: Shutdown

    The actual spraying voltage for AA waterborne systems is 40–50 kV, but because the charging electrode does not directly contact the fluid, the voltage measured by the WB3000 kV meter will be 5–10 kV lower. See the following table. Table 2 . LED Indicator Colors...
  • Page 31: Maintenance

    Maintenance Maintenance Flushing • Flush before changing fluids, before fluid can dry 1. Turn OFF (O) the ES On-Off switch. Wait 30 in the equipment, at the end of the day, before seconds for the voltage to bleed off. storing, and before repairing equipment. •...
  • Page 32 Maintenance 7. Follow the Pressure Relief Procedure, page 10. Open the isolated enclosure door. Leave the Engage the trigger lock. flushing fluid in the system until you are ready to spray again. 11. Hang the gun from its hook, with the nozzle pointing down.
  • Page 33: Clean The Gun Daily

    Maintenance Clean the Gun Daily 7. Clean the outside of the gun with a non-flammable solvent, as defined under Flushing, page Use a soft cloth. Point the gun down to prevent 1. Turn OFF (O) the ES On-Off switch. solvent from entering the gun passages. Do not immerse the gun.
  • Page 34 Maintenance 8. Clean the air cap/tip guard and spray tip with a 10. Align the spray tip tab with the groove in the air soft brush and non-flammable solvent. cap. Install the tip. 11. Install the air cap and retaining ring. Orientate the air cap and tighten the retaining ring securely.
  • Page 35: Daily System Care

    Maintenance Daily System Care 7. Hang the gun from its hook, with the nozzle pointing down. 1. Follow the instructions under Clean the Gun Daily, page 33. Follow Pressure Relief Procedure, page 2. Clean the fluid and air filters. 8. Clean the cabinet: •...
  • Page 36: Electrical Tests

    Use megohmmeter Part No. 241079 (AA) with an other possible causes of poor performance, or applied voltage of 500 V. Connect the leads as contact your Graco distributor. shown. Megohmmeter Part No. 241079 (AA-see Fig. 17) is not approved for use in a hazardous area.
  • Page 37: Test Power Supply Resistance

    Electrical Tests Test Power Supply Resistance 1. Remove the power supply (11). See Power Supply Removal and Replacement, page 2. Remove the alternator (15) from the power supply. See Alternator Removal and Replacement, page 3. Measure resistance from the power supply's ground strips (EE) to the spring (11a).
  • Page 38: Test Gun Barrel Resistance

    (9) except to replace it and never operate the gun without the conductive ring in place. Do not replace the conductive ring with anything but a genuine Graco part. 5. If the resistance is still outside the range, replace the gun barrel.
  • Page 39: Test Ground Strip Resistance

    Electrical Tests Test Ground Strip Resistance Test Cylinder Resistance Using an ohmmeter, measure the resistance between Remove the enclosure door. Using an ohmmeter, the latch housing (206) and the ground lug (214). measure the resistance from the pump (209) to the The ground strip is grounded through the cart back ground lug (214).
  • Page 40: Troubleshooting

    Troubleshooting Troubleshooting isolation system, since all of the system components are electrically connected through the conductive, waterborne fluid. Before troubleshooting or servicing the voltage Installing and servicing this equipment requires isolation system itself, you need to determine which access to parts which may cause an electric shock component in the system is most likely causing a or other serious injury if the work is not performed problem.
  • Page 41 Troubleshooting Visual Checks 7. Make sure the voltage isolation system is in the “isolate” mode, where it is isolating the fluid First, check the system for any visible faults or errors voltage from ground. to help isolate whether the spray gun, fluid hose or 8.
  • Page 42 Troubleshooting Tests 10. Turn the ES ON/OFF valve to ON and trigger the gun. Measure the voltage at the gun electrode If you still have no voltage, separate the spray gun with a voltage probe and meter. and hose from the voltage isolation system and •...
  • Page 43: Spray Pattern Troubleshooting

    Troubleshooting Spray Pattern Troubleshooting NOTE: Some spray pattern problems are caused by the improper balance between air and fluid. Problem Cause Solution Fluttering or spitting spray. No fluid. Refill supply. Air in fluid supply. Check fluid source. Refill. Irregular pattern. Fluid buildup;...
  • Page 44: Gun Operation Troubleshooting

    Troubleshooting Gun Operation Troubleshooting Problem Cause Solution Excessive spray fog. Atomizing air pressure too high. Close atomizing air valve part way, or decrease air pressure as low as possible; minimum 45 psi (0.32 MPa, 3.2 bar) needed at gun for full voltage.
  • Page 45: Electrical Troubleshooting

    Troubleshooting Electrical Troubleshooting Problem Cause Solution Poor wrap. ES On/Off switch is OFF (O). Turn ON (I). Gun air pressure too low (ES Check air pressure to gun; minimum indicator is amber). 45 psi (0.32 MPa, 3.2 bar) needed at gun for full voltage.
  • Page 46 Troubleshooting Problem Cause Solution Voltage/current display stays red Gun is too close to the part being Gun should be 8–12 in. (200–300 (smart guns only). sprayed. mm) from the part. Dirty gun. Clean the Gun Daily, page ES or Hz indicator is amber. Air turbine speed is too low.
  • Page 47: Repair

    • Lightly lubricate o-rings and seals with non-silicone grease. Order Part No. 111265 Lubricant. Do not over-lubricate. • Only use genuine Graco parts. Do not mix or use parts from other PRO Gun models. To reduce the risk of injury, follow the...
  • Page 48: Air Cap, Spray Tip, And Fluid Seat Housing Replacement

    (9) except to replace it and never operate the gun without the conductive ring in place. Do not replace the conductive ring with anything but a genuine Graco part. 3A2497C...
  • Page 49: Electrode Replacement

    Repair Electrode Replacement NOTICE Do not overtighten the fluid seat housing (24). NOTICE Overtightening may damage the housing and the gun barrel, resulting in improper fluid For best performance and to avoid potential shutoff. damage to the spray gun, do not operate the spray gun without the electrode installed in the air cap.
  • Page 50: Gun Barrel Removal

    Repair Gun Barrel Removal Gun Barrel Installation 1. See Prepare the Gun for Service, page 1. Be sure the gasket (5*) and grounding spring (37a) are in place. Make sure the gasket air 2. Remove the air inlet fitting (21) and take the holes are aligned properly.
  • Page 51: Fluid Needle Replacement

    Repair Fluid Needle Replacement 1. See Prepare the Gun for Service, page 2. Remove the air cap assembly and fluid seat housing. See Air Cap, Spray Tip, and Fluid Seat Housing Replacement, page 3. Remove the gun barrel. See Gun Barrel Removal, page 4.
  • Page 52 Repair Power Supply Removal and Replacement • Inspect the gun handle power supply cavity for dirt 9. Insert the power supply/alternator assembly in or moisture. Clean with a clean, dry rag. the gun handle (16). Make sure the ground strips make contact with the handle.
  • Page 53: Alternator Removal And Replacement

    Repair Alternator Removal and Replacement NOTE: Replace alternator bearings after 2000 hours 6. Push the fan and coil assembly (15a) out the of operation. Order Part No. 24N706 Bearing Kit. front of the housing (15d). Parts included in the kit are marked with a symbol (♦). 1.
  • Page 54 Repair 12. Hold the coil assembly (15a) on a workbench 15. Seat the coil fully into the housing (15d♦). Secure with the fan end facing up. Press the fan (15e♦) with the clip (15h♦), ensuring that its tabs engage onto the long end of the shaft (S). The fan blades the slots in the housing.
  • Page 55: Fan Air Adjustment Valve Repair

    Repair Fan Air Adjustment Valve Repair Atomizing Air Adjustment Valve Repair 1. See Prepare the Gun for Service, page 1. See Prepare the Gun for Service, page 2. Place a wrench on the flats of the valve assembly (30) and unscrew it from the handle (16). 2.
  • Page 56: Es On-Off Valve Repair

    Repair ES On-Off Valve Repair 1. See Prepare the Gun for Service, page 4. Clean and inspect parts for damage. Replace if necessary. 2. Loosen the captive screw (26p). Remove the valve (26) from the handle. NOTE: The protrusion on the retainer plate (26f) must point upward.
  • Page 57: Air Valve Repair

    Repair Air Valve Repair 1. See Prepare the Gun for Service, page 8. Install the air valve (23) and spring (2) into the gun handle (16). 2. See Gun Barrel Removal, page 9. Install the ES On-Off Valve. See 3. Remove the screws (13) and trigger (12). ES On-Off Valve Repair, page 4.
  • Page 58: Smart Module Replacement

    Repair Smart Module Replacement If the Error display appears, the Smart Module has lost communication with the power supply. Check for good connections between the Smart Module and the power supply. If the module’s LEDs are not lighting, replace the module.
  • Page 59: Air Swivel And Exhaust Valve

    Repair Air Swivel and Exhaust Valve Replacement 1. See Prepare the Gun for Service, page 3. To replace the air inlet swivel: 2. To replace the air exhaust valve: a. Unscrew the swivel (21) from the gun handle (16). The swivel is a left-hand thread. a.
  • Page 60: Parts

    Parts Parts Standard Air-Assisted Spray Gun Assembly Part No. H60T18 60 kV Electrostatic Air-Assisted Spray Gun, Series A, includes items 1–61 Part No. 24M508 Unshielded Waterborne Fluid Hose (101), sold separately 3A2497C...
  • Page 61 Parts Part No. H60T18 60 kV Electrostatic Air-Assisted Spray Gun, Series A, includes items 1–61 Part No. 24M508 Unshielded Waterborne Fluid Hose (101), sold separately Ref. Part No. Description Ref. Part No. Description 24N745 BODY, gun AEMxxx TIP ASSEMBLY; customer’s AEFxxx choice;...
  • Page 62: Assembly

    Parts Smart Air-Assisted Spray Gun Assembly Part No. H60M18 60 kV Electrostatic Air-Assisted Spray Gun, Series A, includes items 1–61 Part No. 24M508 Unshielded Waterborne Fluid Hose (101), sold separately 3A2497C...
  • Page 63 Parts Part No. H60M18 60 kV Electrostatic Air-Assisted Spray Gun, Series A, includes items 1–61 Part No. 24M508 Unshielded Waterborne Fluid Hose (101), sold separately Ref. Part No. Description Ref. Part No. Description 24N745 BODY, gun 183459 GASKET, tip 185116 SPRING, compression 24N792 ATOMIZING AIR...
  • Page 64: Isolation Enclosure

    Parts Isolation Enclosure Part No. 24N550 Waterborne Isolation Enclosure, for use with unshielded waterborne fluid hose; includes items 201–286 3A2497C...
  • Page 65 Parts Part No. 24N550 Waterborne Isolation Enclosure, for use with unshielded waterborne fluid hose; includes items 201–286 Ref. Part No. Description Ref. Part No. Description — — — CABINET; includes 201a 114051 WASHER, shim, ;atch 201a 15A947 DOOR, cabinet 210084 ROD, ground —...
  • Page 66 Parts Part No. Description Part No. Description Ref. Ref. — — — 116991 TEE, run, manifold SWIVEL, tube; 1/4 npt x 1/4 in. (6 mm) OD tube 203953 SCREW, hex hd cap with patch; — — — SWIVEL, tube; 1/8 npt x 5/32 in. 10–24 x 3/8 in.
  • Page 67: Alternator Assembly

    Parts Alternator Assembly Part No. 24N664 Alternator Assembly Part Description Part Description Ref. Ref. 24N705 COIL, alternator — — — CAP, housing; part of item 15b♦ 24N706 BEARING KIT (includes two 110073 15g* O-RING bearings, item 15e fan, and 15h♦ 24N709 CLIP;...
  • Page 68: Es On-Off Valve Assembly

    Parts ES On-Off Valve Assembly Part No. 24N632 ES On-Off Valve Assembly Ref. Part No. Description Ref. Part No. Description — — — — — — HOUSING, valve SCREW, set, socket head 24N631 PLATE, retaining 15D371 26b* O-RING 26g* 113746 O-RING —...
  • Page 69: Fan Air Valve Assembly

    Parts Fan Air Valve Assembly Ref. Part No. Description Part No. 24N634 Fan Air Valve Assembly — — — NUT, valve — — — STEM, valve 30c* 111504 O-RING 24N646 RING, retaining; package of 6 * These parts are included in Air Seal Repair Kit 24N789 (purchase separately).
  • Page 70: Air Cap Assembly

    Parts Air Cap Assembly Smart Module Assembly Part No. 24N727 Air Cap Assembly Part No. 24N756 Smart Module Assembly Ref. Part No. Description 24N643 ELECTRODE; package of 5 24N734 O-RING; ptfe; package of 5 Ref. Part No. Description (also available in package of 10;...
  • Page 71: Spray Tip Selection Chart

    Spray Tip Selection Chart Spray Tip Selection Chart AEM Fine Finish Spray Tips Recommended for high finish quality applications at low and medium pressures. Order desired tip, Part No. AEMxxx, where xxx = 3–digit number from the matrix below. Fluid Output Maximum Pattern Width at 12 in.
  • Page 72: Aef Fine Finish Pre-Orifice Spray

    Spray Tip Selection Chart AEF Fine Finish Pre-Orifice Spray Tips Recommended for high finish quality applications at low and medium pressures. AEF tips have a pre-orifice that assists in atomizing sheer thinning materials, including lacquers. Order desired tip, Part No. AEFxxx, where xxx = 3–digit number from the matrix below. Orifice Fluid Output Maximum Pattern Width at 12 in.
  • Page 73: Repair Kits, Related Manuals, And Accessories

    Ground Wire and Clamp. change of fan size. 186118 English Warning Sign. Available at 185105 Non-swivel Air Inlet; 1/4–18 npsm(m) no charge from Graco. (left-hand thread) 24N642 Air Inlet Ball Swivel; 1/4–18 npsm(m) (left-hand thread) 185493 Air Hose Adapter; 1/4 npt(m) x 1/4–18 npsm(m) (left-hand thread)
  • Page 74: Hoses

    Repair Kits, Related Manuals, and Accessories Hoses Test Equipment Grounded Air Hoses Part No. Description 241079 Megohmmeter. 500 V output, 100 psi (0.7 MPa, 7 bar) Maximum Working Pressure 0.01–2000 megohms. Use for 0.315 in. (8 mm) ID; 1/4 npsm(f) x 1/4 npsm(f) ground continuity and gun resistance left-hand thread tests.Not for use in hazardous areas.
  • Page 75: 245895 Agitator Kit

    Repair Kits, Related Manuals, and Accessories 245895 Agitator Kit Ref. Part No. Description To keep fluid mixed and prevent settling out. Includes 112698 ELBOW, swivel; 1/8 npt(m) x items 401–408. 1/4 in. (6 mm) OD tube 114158 FITTING, adapter, Y; 1/4 in. (6 mm) OD tube;...
  • Page 76: Dimensions

    Dimensions Dimensions Figure 45 Gun Model A, in. (mm) B, in. (mm) C, in. (mm) Weight without bracket, oz (g) H60T18 10.7 (272) 8.9 (226) 2.4 (61) 22.0 (623) H60M18 10.8 (274) 9.6 (244) 2.4 (61) 24.4 (692) 3A2497C...
  • Page 77: Technical Data

    0.7 MPa, 7.0 bar: 99.0 dB(A) Air Inlet Fitting 1/4 npsm(m) left-hand thread Fluid Inlet Fitting Custom inlet for Graco waterborne fluid hose. Isolation Enclosure Air Inlet Fitting 1/4 npt Isolation Enclosure Fluid Inlet Fitting 3/8 in. OD tube fitting 10 mm OD tube fitting...
  • Page 78 Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective. However, any deficiency in the barrel, handle, trigger, hook, internal power supply, and alternator (excluding turbine bearings) will be repaired or replaced for thirty-six months from the date of sale.

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