Graco HTX 257369 Repair Manual
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Graco HTX 257369 Repair Manual

Graco HTX 257369 Repair Manual

Graco inc. portable airless sprayer repair manual
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Repair
HTX 2030
-For Portable Airless and Air-Assisted Spraying of Water-Based Architectural Coatings with Base Coat Pump-
-For Airless Spraying Architectural Coatings and Paints with Top Coat Pump-
IMPORTANT SAFETY INSTRUCTIONS
Read all warnings and instructions in this man-
ual. Save these instructions.
Model Number: 257369
Maximum Working Pressure:
Base Coat Pump: 1000 psi (69 bar, 6.9 MPa)
Top Coat Pump: 3300 psi (228 bar, 22.8 MPa)
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313893 - Operation (Spanish)
313892 - Repair (French)
313894 - Repair (Spanish)
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313896 - HTX 2030 Flex Head and Pole Spray Applicator (French)
313897 - HTX 2030 Flex Head and Pole Spray Applicator (Spanish)
310894 - Displacement Pump (Top Coat)
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313537 - HTX 2030 Applicator (English)
313603 - HTX 2030 Applicator (Chinese)
313908 - HTX 2030 Applicator (French)
313911 - HTX 2030 Applicator (Spanish)
313889B
ti13632a

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Summary of Contents for Graco HTX 257369

  • Page 1 Repair HTX 2030 -For Portable Airless and Air-Assisted Spraying of Water-Based Architectural Coatings with Base Coat Pump- -For Airless Spraying Architectural Coatings and Paints with Top Coat Pump- IMPORTANT SAFETY INSTRUCTIONS Read all warnings and instructions in this man- ual. Save these instructions. Model Number: 257369 Maximum Working Pressure: Base Coat Pump: 1000 psi (69 bar, 6.9 MPa)

  • Page 2: Table Of Contents

    Contents Contents Contents ........2 Warning ........3 Component Identification - Sprayer .

  • Page 3: Warning

    Warning The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbol refers to procedure-spe- cific risk. Refer back to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where applicable.
  • Page 4 Warning PRESSURIZED ALUMINUM PARTS HAZARD Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids containing such solvents in pressurized aluminum equipment. Such use can cause serious chemical reaction and equipment rupture, and result in death, serious injury, and property damage. SUCTION HAZARD Never place hands near the pump fluid inlet when pump is operating or pressurized.

  • Page 5: Component Identification - Sprayer

    Component Identification - Sprayer ON/OFF Switch Prime Switch (used with Base Coat Pump) Pump Control Heavy Texture Material Hose (used with Base Coat Pump) Applicator Switch (used with Base Coat Pump--on Hose 5) Applicator (Base Coat) Pump (Base Coat) Over Pressure Relief Valve Pump (Top Coat) Spray Gun (Top Coat) Paint/Texture Material Hose (used with Top Coat Pump)

  • Page 6: Component Identification - Base Coat Applicator

    Component Identification - Base Coat Applicator Component Identification - Base Coat Applicator Applicator Air Hose Adapter and Air Adjustment Valve Airless Filter or Air Passage Plug Filter Support Airless Spray Assembly Airless Spray Tip Air nozzle, 4 mm, 6mm, 8mm, 10mm Air Nozzle Cleaner Cleaning Brush 10 Cleaning Ball...

  • Page 7: Troubleshooting

    Troubleshooting Problem E=XX is displayed Fault condition exists Engine will not start Engine switch is OFF Engine is out of gasoline Engine oil level is low Spark plug is disconnected or damaged Connect spark plug cable or replace spark plug Cold engine Fuel shutoff lever is OFF Oil is seeping into combustion chamber Remove spark plug.
  • Page 8 Troubleshooting Problem Pump output is low Strainer (82) is clogged (Base Coat Pump see pages Piston ball is not seating Piston packings are worn or damaged Top Coat Pump see manual O-ring in pump is worn or damaged 310894) Intake valve ball is not seating properly Intake valve is packed with material Engine speed is too low Clutch is worn or damaged...

  • Page 9: Pressure Relief Procedure

    Pressure Relief Procedure Applicator (Base Coat Pump) 1. Turn engine OFF. 2. Turn on/off switch OFF and turn pressure control knob fully counterclockwise. ti6208b 3. Turn prime/drain valve down to DRAIN position. Fluid from drain valve can splash in eyes or skin and cause serious injury.

  • Page 10: Repair

    Repair Repair Bearing Housing and Connecting Rod Removal Relieve Pressure, page 9. 1. Remove Pump, page 22. Remove four screws (45) and front cover (44). ti13706a 2. Remove four screws (64) and washers (63) from ProConnect bearing housing (40). ti13707a 3.

  • Page 11: Installation

    Installation 1. Evenly lubricate inside of bronze bearing (C) in bearing housing (40) with high-quality motor oil. Lib- erally pack top roller bearing (E), lower bearing (D) inside connecting rod (43) with bearing grease. 2. Assemble connecting rod (43) to bearing housing (40).

  • Page 12: Drive Housing

    Repair Drive Housing Removal Relieve Pressure, page 9. 1. Remove Bearing Housing, page 10. NOTICE Thrust washers may stick to grease inside of drive housing. Do not lose or misplace. 2. Remove six screws (38). 3. Lightly tap around drive housing (33) to loosen drive housing.

  • Page 13: Pinion Assembly / Clutch Armature / Clamp

    Pinion Assembly / Clutch Armature / Clamp Pinion Assembly / Clutch Armature Removal If pinion assembly (29) is not removed from clutch hous- ing (19), perform steps 1 through 3. Otherwise, start at step 4. Pinion Assembly 1. Remove drive housing, page 12. ti13712a 2.

  • Page 14: Clamp Removal

    Repair Clutch Armature 8. Use an impact wrench or wedge something between clutch armature (25) and clutch housing to hold engine shaft during removal. ti5483a 9. Remove four screws (23) and lock washers (24). 10. Remove armature (25). Installation Clutch Armature 1.

  • Page 15: Clamp Installation

    Clamp Installation 1. Install engine shaft key (18). 2. Tap clamp (22) onto engine shaft (A). Maintain dimension of 2.612 ± .010 in. (66.34 ± .25mm). Chamfer must face engine. 2.612 in. (66.34 mm) 3. Check dimension: Place rigid, straight steel bar (B) across face of clutch housing (19).
  • Page 16 Repair 9. Place pinion assembly on bench with rotor side up. 10. Apply thread sealant to screws. Install four screws (28) and lock washers (24). Alternately torque screws to 125 ± 10 in-lb (14 ± 1.1 N•m) until rotor is secure.

  • Page 17: Clutch Housing

    Clutch Housing Removal 1. Remove four screws (20) and lock washers (21) which hold clutch housing (19) to engine. 2. Remove screw (35) from under mounting plate (D). 3. Pull off clutch housing (19). Installation 1. Push on clutch housing (19). 2.

  • Page 18: Pressure Control

    Repair Pressure Control Pump On/Off Switch Removal 1. Remove two screws (71) and swing down cover (70a). 2. Disconnect pump ON/OFF switch (70j) connector from control board. 3. Press in on two retaining tabs on each side of pump ON/OFF switch (70j) and remove switch from cover. ti13248a Installation 1.

  • Page 19: Control Board

    Control Board Removal 1. Remove two screws (71) and swing cover (70a) down. 2. Squeeze strain relief bushings (70b) with pliers and remove. ti13710a 3. Disconnect all leads at control board (70c). See Wiring Diagram, page 24. 4. Remove four screws (70d) and control board (70c). 313889B Installation 1.

  • Page 20: Pressure Control Transducer

    Repair Pressure Control Transducer Removal 1. Remove two screws (71) and swing cover (70a) down. ti13709a 2. Disconnect transducer lead (158) from control board (70c). ti13253a 3. Remove strain relief (70b) and pull transducer cable from the control box. Remove screws (182) and cover (184) to detach transducer from cart frame.

  • Page 21: Pump Control

    Pump Control Removal 1. Remove two screws (71) and swing cover (70a) down. 2. Disconnect pump control (70p) lead from control board (70c). 3. Loosen set screws on pump control knob (70k) and remove knob, shaft nut, lock washer and pump con- trol (70p).

  • Page 22: Displacement Pump

    Repair Displacement Pump Removal 1. Flush pump, page 22. 2. Stop pump with piston rod in its lowest position. 3. Perform Pressure Relief procedure, page 9. 4. Top Coat Pump: Separate drain hose from sprayer. ti11420a 5. Disconnect transducer from pump manifold. ti13704a 6.
  • Page 23 Installation 1. Adjust piston rod to proper length: Adjust piston rod with pin holder to pull out piston rod. Tap piston rod on hard surface to push in piston rod. ti5492a 2. Slide pump into connecting rod. Push pump collar flush with bearing housing ledge to be able to close pump door.

  • Page 24: Wiring Diagram

    Wiring Diagram Wiring Diagram To Engine To Ground Clutch Test Points Pinion Drive On/Off Switch Control Board Pump Sensor Pump/Prime Switch Display Board Pump Control Transducer ti13556a 313889B...

  • Page 25: Technical Data

    Technical Data Honda GX 200 Engine: ANSI Power Rating @ 3600 rpm Maximum Working Pressure: Base Coat Pump Top Coat Pump Noise Level: Sound Power Sound Pressure Maximum Delivery Rating: Base Coat Pump Top Coat Pump Maximum Tip Nozzle Size: Base Coat Pump Top Coat Pump Inlet Paint Strainer:...

  • Page 26: Notes

    Notes Notes 313889B...
  • Page 27 Notes 313889B...

  • Page 28: Graco Standard Warranty

    Graco Standard Warranty Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by 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.

This manual is also suitable for:

Htx 313889bHtx 2030257369Texspray htx 2030

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