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Graco Ultimate Mx795 - User Manual

Graco Ultimate Mx795
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309255
Rev. E
REPAIR
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
Ultimate Mx695/795/1095
Airless Paint Sprayers
3300 psi (227 bar, 22.7 MPa ) Maximum Working Pressure
Sprayer Series Lo–boy Hi–boy Parts
695 B 825002 825000 309256
A 826025 825005
826024
795 A 825022 825020 309264
1095 A 825030
825031
825006
309264
309639. . . . . . .
309250. . . . . . .
309640. . . . . . .
309254. . . . . . .
Related manuals
309256. . . . . . .
309264. . . . . . .
309277. . . . . . .
(695)
(795/1095)
Parts
Spray Gun
Operation
Spray Tip
Pump
(695)
(795/1095)
309310. . . . . . .
Table of Contents
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Component Function and Identification 3. . . . . . . . . . . .
General Repair Information 4. . . . . . . . . . . . . . . . . . . . . .
Grounding 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spin Test 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Motor Brush Replacement 9. . . . . . . . . . . . . . . . . . . . . .
On/Off Switch Replacement 13. . . . . . . . . . . . . . . . . . . .
Pressure Control Repair 15. . . . . . . . . . . . . . . . . . . . . . .
Drive Housing Replacement 18. . . . . . . . . . . . . . . . . . . .
Motor Replacement 20. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement Pump Replacement 21. . . . . . . . . . . . . . .
Technical Data 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Phone Number 22. . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Warranty 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
COPYRIGHT 2001, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
ti0905A

Questions and Answers

  • Y
    yvanceAug 8, 2025
    How to fix a Graco Ultimate Mx795 Paint Sprayer when the motor won’t operate?
    • S
      shirley01Aug 8, 2025
      If the motor of your Graco Paint Sprayer won’t operate, tighten any loose power connections. Replace the power switch, power cord, or extension cords if they are damaged. Reset the circuit breaker if it has tripped. Also, increase the pressure setting.
  • A
    Alejandro CarrollAug 14, 2025
    What to do if my Graco Paint Sprayer has low output?
    • K
      Kyle Smith IIIAug 14, 2025
      If your Graco Paint Sprayer has low or fluctuating output, try the following: Refill and reprime the pump. Relieve pressure, then check and clean the filter. Also, remove the intake valve and clean it, checking for any nicks on the balls and seats; replace if necessary. Strain your paint before using it to prevent clogging. Make sure to tighten any loose connections, and use thread sealant or sealing tape on threads if needed. Replace with a correct, grounded extension cord.
  • B
    Brian TorresAug 19, 2025
    What to do if the motor runs but pump does not stroke on Graco Ultimate Mx795?
    • J
      Janet WhiteAug 19, 2025
      If the motor runs but the pump doesn't stroke on your Graco Paint Sprayer, replace the pump pin if it's missing. Ensure the retainer spring is fully in the groove all around the connecting rod.
  • S
    stokesmackenzieAug 27, 2025
    Why does the building circuit breaker open when I use my Graco Paint Sprayer?
    • M
      mirandawilliamAug 27, 2025
      If the building circuit breaker opens when using your Graco Paint Sprayer, try switching to another circuit with less load. If your sprayer has a 15/20A or 10/12A switch, change to the lower value. Ensure all wires are securely reconnected and repair or replace any damaged wiring or terminals.
  • D
    Daniel FuentesSep 1, 2025
    What to do if the Graco Ultimate Mx795 display reads all 8’s?
    • R
      Robert ZamoraSep 1, 2025
      To resolve a Graco Paint Sprayer display reading all 8’s, set the four switches (psi, bar, MPa, and liters/gallons) to the proper settings for your sprayer.

Summary

Important Safety Instructions

Safety Hazards and Precautions

Fire and Explosion Hazards

Hazards from solvent and paint fumes igniting or exploding.

Fluid Injection and High Pressure Hazards

Risks of high-pressure spray or leaks injecting fluid into the body.

Component Identification and Function

General Repair Information

Pressure Relief Procedure

Steps to manually relieve system pressure before servicing or spraying.

General Safety Warnings and Cautions

Hazards like electric shock, moving parts, hot surfaces, and explosion.

Grounding

Troubleshooting

Motor Operation Troubleshooting

Steps to diagnose and resolve issues when the motor does not function.

Motor Troubleshooting

Diagnosing and resolving problems related to the motor.

Control Board and Wiring Troubleshooting

Troubleshooting issues with the control board and its wiring.

Control and Sensor Troubleshooting

Diagnosing problems with control sensors and potentiometers.

Output Performance Troubleshooting

Troubleshooting issues with inconsistent or low spray output.

Motor-Pump Synchronization Troubleshooting

Diagnosing why the motor runs but the pump fails to operate.

Circuit Breaker and Electrical Troubleshooting

Diagnosing and resolving issues related to electrical circuits.

Display and Error Code Troubleshooting

Troubleshooting when the digital display shows error codes or messages.

AutoClean Function Troubleshooting

Troubleshooting problems with the AutoClean feature.

Spin Test Procedure

Motor Brush Replacement

695 Brush Installation

Detailed steps for installing new brushes on the 695 model.

Motor Brush Replacement (795;1095)

795;1095 Brush Installation

Detailed steps for installing new brushes on the 795/1095 models.

On;Off Switch Replacement

On;Off and 15;20 A Switch Replacement

Pressure Control Repair

Motor Control Board Service

Steps for removing, installing, and connecting the motor control board.

Stored Data and Display Settings

How to view stored data and configure digital display units.

Digital Display Messages and Errors

Interpretation of digital display messages and error codes.

Pressure Control Transducer Service

Procedures for removing and installing the pressure control transducer.

Pressure Adjust Potentiometer Service

Procedures for removing and installing the pressure adjust potentiometer.

Drive Housing Replacement

695 Drive Housing Service

Steps for removing and installing the drive housing for the 695 model.

795;1095 Drive Housing Service

Steps for removing and installing the drive housing for 795/1095 models.

Motor Replacement

Displacement Pump Replacement

Pump Removal and Installation

Detailed steps for removing and installing the displacement pump.

Technical Data

Dimensions

Graco Ultimate Mx795 Specifications

General IconGeneral
Hose Length50 ft
Power SourceElectric
Voltage120 V
Spray Tip IncludedYes
TypeAirless

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