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Duron A Series Repair Manual

Airless paint sprayers
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REPAIR
KEEP FOR REFERENCE.
Read this and all related manuals for
important warnings and instructions.
INSTRUCTIONS
Performance Pro 395/495
Airless Paint Sprayers
3000 psi (207 bar, 20.7 MPa ) Maximum Working Pressure
120 VAC
Type
Series Stand
395 Prot
A
232970
495 Prot
A
232990 232992
Related manuals
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General Repair Information
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GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
Hi-boy

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ECOPYRIGHT 1999, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
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309070
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309049
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309054
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Graco Warranty
309050
232970
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309051
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Rev. A
9546A
309053
309055
13
15
16
17
18
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18

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  • Page 1: Table Of Contents

    REPAIR 309050 Rev. A KEEP FOR REFERENCE. Read this and all related manuals for important warnings and instructions. INSTRUCTIONS Performance Pro 395/495 Airless Paint Sprayers 3000 psi (207 bar, 20.7 MPa ) Maximum Working Pressure 120 VAC Type Series Stand Hi–boy 395 Prot 232970...
  • Page 2 WARNING ADVERTÊNCIA Poderá ocorrer incêndio e explosão quando for pulverizado ou injetado Fire and explosion hazard: Solvent and paint fumes can ignite or líquido inflamável numa área onde houver má circulação de ar; vapores explode. inflamáveis poderão incendiar-se a partir de uma chama ou fagulhas a To help prevent a fire and explosion: descoberto.

  • Page 3: Component Function And Identification

    Component Identification and Function 8050A Fig. 1 Motor DC motor, permanent magnet, totally enclosed, fan cooled Drive Assembly Transfers power from DC motor to displacement pump Displacement Pump Transfers fluid to be sprayed from source through spray gun Fluid Outlet Spray gun is connected here Prime Valve Used to prime and drain sprayer (also relieves fluid outlet pressure) when...
  • Page 4 General Repair Information Pressure Relief Procedure 1. Keep all screws, nuts, washers, gaskets, and electrical fittings removed during repair proce- dures. These parts are not normally provided with WARNING replacement assemblies. INJECTION HAZARD WARNING System pressure must be manually relieved to prevent system from starting ELECTRIC SHOCK HAZARD or spraying accidentally.

  • Page 5: Grounding

    Grounding WARNING Improper installation or alteration of grounding plug Grounding Plug results in risk of electric shock, fire or explosion Grounded that could cause serious injury or death. Outlets 1. All models require a 120 Vac, 60 Hz, 15A circuit with a grounding receptacle.
  • Page 6 Troubleshooting MOTOR WON’T OPERATE (Continued) WHAT TO CHECK WHAT TO DO TYPE OF PROBLEM If check is OK, go to next check When check is not OK refer to this column Basic Electrical Problems 1. That motor leads are securely fastened and 1.
  • Page 7 Troubleshooting LOW OR FLUCTUATING OUTPUT WHAT TO CHECK WHAT TO DO TYPE OF PROBLEM If check is OK, go to next check When check is not OK refer to this column Low Output 1. For worn spray tip. 1. Follow Pressure Relief Procedure Warn- ing, then replace tip.
  • Page 8 Troubleshooting LOW OR FLUCTUATING OUTPUT WHAT TO CHECK WHAT TO DO TYPE OF PROBLEM If check is OK, go to next check When check is not OK refer to this column Motor runs and pump strokes 1. Paint supply. 1. Refill and reprime pump. 2.
  • Page 9 Troubleshooting MOTOR IS HOT AND RUNS INTERMITTENTLY WHAT TO CHECK WHAT TO DO TYPE OF PROBLEM If check is OK, go to next check When check is not OK refer to this column Motor is hot and runs intermit- 1. Determine if sprayer was operated at high 1.

  • Page 10: Spin Test

    Spin Test Setup Armature, Brushes, and Motor Wiring Open Circuit Test (Continuity) 1. Connect red and black motor leads together with Electric Shock Hazard; page 4. test lead. Turn motor fan by hand at about two revolutions per second. To check armature, motor winding and brush electrical 2.
  • Page 11 Motor Brush Replacement 4. Fig. 5. Push in spring clip (A) to release hook (B) from brush holder (C). Pull out spring clip (A). 5. Fig. 5. Pull brush lead (D) out of terminal (E). Remove brush (F). Motor lead; do not disconnect Minimum 0.5”...

  • Page 12: On/Off Switch Replacement

    On/Off Switch Replacement Removal Installation 1. Install new ON/OFF switch (23). Install locking ring Relieve pressure; page 4. (24) and toggle boot (25). 2. Fig. 7. Remove four screws (18) and pressure control cover (39). 2. Connect two wires (A) to ON/OFF switch. 3.

  • Page 13: Pressure Control Repair

    Pressure Control Repair Motor Control Board Removal Installation Refer to Fig. 7, 8 or 9 depending on sprayer voltage. 1. Clean pad on rear of motor control board. Apply small amount of thermal compound 073019 to pad. 2. Fig. 7. Install motor control board (35) with five Relieve pressure;...
  • Page 14 Pressure Control Repair Pressure Control Transducer Pressure Adjust Potentiometer Removal Removal Relieve pressure; page 4. Relieve pressure; page 4. 2. Fig. 7. Remove four screws (18) and cover (39). Fig. 7. Remove four screws (18) and cover (39). 3. Disconnect lead (E) from motor control 3.

  • Page 15: Drive Housing Replacement

    Drive Housing Replacement 5. Remove two back screws (22). CAUTION 6. Pull drive housing (10) off of motor (1). Do not drop gear cluster (7) when removing drive housing (10). Gear cluster may stay engaged in Assembly motor front end bell or drive housing. 1.

  • Page 16: Motor Replacement

    Motor Replacement Disassembly 6. Remove strain relief (37, page 12, 13, 14). 7. Remove three screws (22) behind board and remove control housing (21). Relieve pressure; page 4. 8. Remove four screws (22) and motor (1) from frame (63). 2. Remove pump (13); Displacement Pump Re- Assembly placement, page 17.

  • Page 17: Displacement Pump Replacement

    Displacement Pump Replacement See manual 309053 for pump repair instructions. See manual 309051 for sprayer part number refer- ences. Removal 1. Flush pump (13). 4. Cycle pump until pump pin (9a) is in position to be removed. Remove pump pin (9a). 5.

  • Page 18: Technical Data

    Technical Data V, ∅, A, Hz Model Generator Motor HP Cycles per gallon Maximum Maximum Fluid Outlet Minimum W (liter) Delivery gpm Tip size npsm (lpm) 120, 1, 15, 60 3000 1/2 (373) 680 (180) 0.38 (1.25) 0.019 1/4 in. 120, 1, 15, 60 3750 3/4 (560)

This manual is also suitable for:

Performance pro 395Performance pro 495

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