Graco Ultra Max II 795 Repair Manual
  1. Manuals
  2. Brands
  3. Graco Manuals
  4. Paint Sprayer
  5. ULTRA MAX II 795
  6. Repair manual
Graco Ultra Max II 795 Repair Manual

Graco Ultra Max II 795 Repair Manual

Airless sprayers
Hide thumbs Also See for Ultra Max II 795:
Table of Contents

Advertisement

Quick Links

Repair
r
Ultra
Max II 695/795/1095/1595t
Airless Sprayers
3300 psi (227 bar, 22.7 MPa) Maximum Working Pressure
Vac
Model
695
120
795
North America
1095
1595
R
240
695
Europe
795
1095
240
695
Europe Multi-cord
795
1095
110
695
UK
795
1095
240
695
Asia
795
1095
240
695
Australia
795
1095
100
695
Japan & Taiwan
795
1095
* Not ETL Approved
All models not available in all countries.
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
Copyright 2004, Graco Inc. is registered to I.S. EN ISO 9001
Standard/
Premium
Standard
248037
248036
Premium
248031
248030
Standard
248308
248038
Premium
248033
248032
Standard
248039
Premium
248034
Standard
248747
248040*
Premium
248746
248035*
248042
248041
248043
248044
248046
248045
248047
248048
248049
248050
248051
248058
248057
248059
248060
248593
248592
248594
248595
248053
248052
248055
248054
248056
309941
Rev. E
ti4281a
248036

Advertisement

Table of Contents
loading

Related Manuals for Graco Ultra Max II 795

Summary of Contents for Graco Ultra Max II 795

  • Page 1 248595 248053 248052 Japan & Taiwan 248055 248054 1095 248056 * Not ETL Approved All models not available in all countries. GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441 Copyright 2004, Graco Inc. is registered to I.S. EN ISO 9001...

  • Page 2: Table Of Contents

    ......Graco Phone Number ....
  • Page 3 WARNING FIRE AND EXPLOSION HAZARD Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help pre- vent fire and explosion: D Use equipment only in well ventilated area. D Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop cloths (potential static arc).

  • Page 4: Component Function And Identification

    Component Identification and Function ti2377a ti4281a 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 open...

  • Page 5: General Repair Information

    General Repair Information Pressure Relief Procedure CAUTION To reduce risk of pressure control malfunction: WARNING Use needle nose pliers to disconnect wire. Never pull on wire, pull on connector. INJECTION HAZARD System pressure must be manually Mate wire connectors properly. Center flat blade of insulated male connector in female connector.

  • Page 6: Troubleshooting

    Troubleshooting Relieve pressure; page 5. Mechanical/Fluid Flow TYPE OF PROBLEM WHAT TO CHECK WHAT TO DO If check is OK, go to next check When check is not OK refer to this column Low Output or Pressure 1. For worn spray tip. 1.

  • Page 7: Electrical

    Troubleshooting Electrical Symptom: Sprayer does not run or stops running WARNING Relieve pressure; page 5. To avoid electrical shock or moving parts hazards when covers are removed for troubleshooting, wait 30 seconds after unplugging power cord for stored D Plug sprayer into correct voltage, grounded outlet electricity to dissipate.
  • Page 8 Troubleshooting Electrical DIGITAL CONTROL BOARD INDICATION WHAT TO DO STATUS LIGHT DISPLAY Displays high – Improper pressure Open prime valve. Connect a known good trans- pressure ducer in place of the sprayer transducer. Set signal to contro when prime sprayer ON. Replace transducer If sprayer runs. valve is open Replace control board If sprayer does not run.
  • Page 9 Troubleshooting Electrical DIGITAL CONTROL BOARD INDICATION WHAT TO DO STATUS LIGHT DISPLAY E=05 Blinks 5 x repeat- Possible locked 1. Check motor wiring connections edly pump or drive. May be motor connection 2. Check for locked or frozen pump or drive train or wiring error.

  • Page 10: Pressure Control Repair

    Pressure Control Repair 100 – 120 Vac North American and Japan/Taiwan Motor Control Board Removal Installation 1. Fig. 3. Apply small amount of thermal compound 110009 (5) to shaded component areas on rear of Relieve pressure; page 5. motor control board (95). Wait 5 minutes before servicing.
  • Page 11 240 Vac Motor Control Board Removal Installation 1. Fig. 4. Apply small amount of thermal compound Relieve pressure; page 5. 110009 (5) to shaded areas on rear of motor Wait 5 minutes before servicing. control board (95). 2. Fig. 4. Remove four screws (38) and cover (96). CAUTION 3.
  • Page 12 240 Vac Tighten 1 screw to 14–17 in-lb (1.58–1.92 NSm) Tighten 2 screws 7–10 in–lb (.79–1.13 NSm) ti4345a Fig. 4 309941...
  • Page 13 110 Vac U.K. Motor Control Board Removal Installation 1. Fig. 5. Apply small amount of thermal compound Relieve pressure; page 5. 110009 (5) to shaded areas on rear of motor Wait 5 minutes before servicing. control board (95). 2. Fig. 5. Remove four screws (38) and cover (96). CAUTION 3.
  • Page 14 110 Vac U.K. Tighten 1 screw to 14–17 in lb (1.58–1.92 NSm) Tighten 2 screws 7–10 in–lb (.79–1.13 NSm) ti5015a Fig. 5 309941...
  • Page 15 Pressure Adjust Potentiometer Removal Installation 1. Install gasket (115), nut and potentiometer (82) on Relieve pressure; page 5. control panel (68). Torque nut to 30–35 in-lb Wait 5 minutes before servicing. (3.38–3.95 N·m). 2. Fig. 3, 4 or 5. Remove four screws (38) and cover (96).

  • Page 16: Drive And Bearing Housing Replacement

    Drive and Bearing Housing Replacement 7. Remove five screws (6) and pull drive housing (90) CAUTION off motor (84). Do not drop gear cluster (89) when removing drive Assembly housing (90). Gear cluster may stay engaged in motor front end bell or drive housing. Fig.
  • Page 17 ti4253a Fig. 6 309941...

  • Page 18: Motor Replacement

    Motor Replacement Removal Installation 1. Slide new motor (84) under two screws (23) in cart Relieve pressure; page 5. frame (62) near control. Wait 5 minutes before servicing. 2. Remove pump (91); Displacement Pump Re- 2. Install two screws (23) and nuts (19) on motor side placement, page 20.
  • Page 19 (A) 795 ti4254a LED Status Light Fig. 7 309941...

  • Page 20: Displacement Pump Replacement

    Fig. 11 7. Fig. 8. Install pump rod shield (108) with screw 1.5 in. (31). 8. Fig. 12. Fill packing nut with Graco TSL until fluid flows onto top of seal. ti4258a Fig. 10 2. Install pump pin (44). Verify retaining spring (43) is ti4258a in groove of connecting rod (85).
  • Page 21 Notes 309941...

  • Page 22: Technical Data

    (57.2) Graco Phone Number TO PLACE AN ORDER OR FOR SERVICE, contact your Graco distributor, or call 1–800–690–2894 to identify the nearest distributor. All written and visual data contained in this document reflects the latest product information available at the time of publication.

This manual is also suitable for:

Ultra max ii 695Ultra max ii 1095Ultra max ii 1595

Table of Contents