Graco Ultimate Mx695 Repair Instructions
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Graco Ultimate Mx695 Repair Instructions

Airless paint sprayers
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REPAIR
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
Ultimate Mxt695/795/1095
Airless Paint Sprayers
3300 psi (227 bar, 22.7 MPa ) Maximum Working Pressure
Sprayer
Series Lo-boy Hi-boy Parts
695
B
825002
A
826025
795
A
825022
1095
A
Related manuals
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309254
. . . . . . .
309310
Operation
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309639
Spray Gun
Warnings
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GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
825000 309256
825005
826024
825020 309264
825030
309264
825031
825006
. . . . . . .
309250
. . . . . . .
309277
Pump
. . . . . . .
309640
Spray Tip

Table of Contents

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ECOPYRIGHT 2001, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
(695)
(795/1095)
2
3
4
5
5
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9
9
13
Graco Warranty
309255
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309256
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309264
Parts
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Rev. E
ti0905A
(695)
(795/1095)
15
18
20
21
22
22
22

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Summary of Contents for Graco Ultimate Mx695

  • Page 1: Table Of Contents

    ....... GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 ECOPYRIGHT 2001, GRACO INC. Graco Inc. is registered to I.S. EN ISO 9001...
  • Page 2 ADVERTÊNCIA WARNING Perigo de incêndio e explosão: os solventes e os vapores da pintura Fire and explosion hazard: Solvent and paint fumes can ignite or poderão explodir ou incendiar. explode. Para ajudar a evitar incêndio e explosão: To help prevent a fire and explosion: DUtilize unicamente em áreas extremamente bem ventiladas.

  • Page 3: Component Identification And Function

    Component Identification and Function ti2377a ti0905A ti2377a 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...

  • Page 4: General Repair Information

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

  • Page 5: Grounding

    Grounding WARNING Grounded Outlets Improper installation or alteration of grounding plug results in risk of electric shock, fire or explosion that could cause serious injury or death. 1. All models require a grounded outlet for power connection. Circuit must be 50/60 Hz with an Ampere rating equal to or greater than the sprayer.
  • Page 6 Troubleshooting WHAT TO CHECK WHAT TO DO PROBLEM If check is OK, go to next check When check is not OK refer to this column 1. Connections at control board and brushes 1. Repair any loose connections Motor 2. Brushes worn. Length must be 1/2 in. minimum. 2.
  • Page 7 Troubleshooting WHAT TO CHECK WHAT TO DO PROBLEM If check is OK, go to next check When check is not OK refer to this column Low or fluctuating output 1. For worn spray tip. 1. Follow Pressure Relief Procedure Warn- ing, then replace tip.
  • Page 8 Troubleshooting 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 Building circuit breaker opens 1. Current limit exceeded 1. Switch to another circuit with less load. If sprayer has a 15/20A or 10/12A switch, change to lower value.

  • Page 9: Spin Test

    Spin Test Setup Armature, Brushes, and Motor Wiring Open Circuit Test (Continuity) 1. Fig. 3. Connect red and black motor leads together with test lead. Turn motor fan by hand at about two Electric Shock Hazard; page 4. revolutions per second. 2.
  • Page 10 Motor Brush Replacement 4. Fig. 5. Push in spring clip (A) to release hook (B) 695 Motor Brush Installation from brush holder (C). Pull out spring clip (A). CAUTION 5. Fig. 5. Pull brush lead (D) out of terminal (E). Remove brush (F).
  • Page 11 Motor Brush Replacement 795/1095 Motor Brush Removal NOTE: Replace brushes worn to less than 1/2 in. 4. Fig. 8. Push in 110816 spring clip (A) to release Brushes wear differently on each side of motor, hooks (B) from brush holder (C). Pull out spring check both sides.
  • Page 12 Motor Brush Replacement 795/1095 Motor Brush Installation 11. Repeat for other side. CAUTION 12. Test brushes. When installing brushes, follow all steps carefully to a. Remove pump connecting rod pin. avoid damaging parts. b. With sprayer OFF, turn pressure control knob 7.

  • Page 13: On/Off Switch Replacement

    On/Off Switch Replacement 695/795 120 Vac (825000, 825002, 825005, 825020, 825022, 826024, 826025) Removal Installation Relieve pressure; page 4. 1. Push ON/OFF switch (86) into control panel (67) until inside tabs snap in place. 2. Fig. 10. Remove four screws (60) and pressure control cover (49).
  • Page 14 On/Off and 15/20A Switch Replacement 1095 120 Vac (825030, 825031, 825006) Removal Installation Push 15/20A switch (60) into control panel (67) until inside tabs snap in place Relieve pressure; page 4. Connect two wires (A2) to 15/20A switch (86). Fig. 11. Remove four screws (60) and pressure control cover (49).

  • Page 15: Pressure Control Repair

    Pressure Control Repair Motor Control Board D Wires to power cord and switch Removal Refer to Fig. 10 or 11 depending on sprayer and voltage. 4. Route loose wires so none lay in contact with inductor coil on filter board (not 120 Vac sprayers). See Wiring Diagram CAUTION, Fig.
  • Page 16 Pressure Control Repair Digital Display Messages (Not available on all sprayers) No display does not mean that sprayer is not pressurized. Relieve pressure before repair; page 4. DISPLAY* SPRAYER INDICATION ACTION OPERATION No Display Sprayer may be pressurized. Loss of power or display not Check power source.
  • Page 17 Pressure Control Repair Pressure Control Transducer Pressure Adjust Potentiometer Removal Removal Refer to Fig. 10 or 11 depending on sprayer voltage. Refer to Fig. 10 or 11 depending on sprayer voltage. Relieve pressure; page 4. Relieve pressure; page 4. 2. Remove four screws (60) and pressure control 2.

  • Page 18: Drive Housing Replacement

    Drive Housing Replacement 7. Remove two screws (105) and washers (17). CAUTION 8. Pull drive housing (78) off of motor (75). Do not drop gear cluster (7) when removing drive housing (10). Gear cluster may stay engaged in 9. Slide connecting rod (76) out of drive housing. motor front end bell or drive housing.
  • Page 19 Drive Housing Replacement 8. Remove two screws (20) and washers (15) and CAUTION pull drive housing (78) off of motor (75). Do not drop gear cluster (7) when removing drive 9. Slide connecting rod (76) out of bearing housing. housing (10). Gear cluster may stay engaged in motor front end bell or drive housing.

  • Page 20: Motor Replacement

    Motor Replacement Removal 10. Thread motor lead (J) out through slot in frame. 11. Remove four screws (31), nuts (127) and motor (75) from frame (72). Relieve pressure; page 4. Installation 2. Remove pump (79); Displacement Pump Re- 1. Install new motor (75) on cart frame (72) with four placement, page 21.

  • Page 21: Displacement Pump Replacement

    1/4 turn with a plastic hammer to approximately 75 +/–5 ft–lb (102 Nm). ti0917 Fig. 18 ti0917 Fig. 20 Fig. 21. Fill packing nut with Graco TSL, through one of the slits, until fluid flows onto the top of seal. Fig. 21 7677B 309255...

  • Page 22: Technical Data

    1–800–690–2894 to identify the nearest distributor. All written and visual data contained in this document reflect the latest product information available at the time of publication. Graco reserves the right to make changes at any time without notice. mm 309255...

This manual is also suitable for:

Ultimate mx1095Ultimate mx795

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