Graco Mark VII Max Repair Manual
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Graco Mark VII Max Repair Manual

Graco Mark VII Max Repair Manual

Electric airless sprayers
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Repair
Mark VII Max, Mark X Premium and Mark X Max
Electric Airless Sprayers
For Portable Airless Spraying of Architectural Coatings and Paints.
For professional use only. Not approved for use in European explosive atmosphere locations.
3300 psi (227 bar, 22.7 MPa) Maximum Working Pressure
IMPORTANT SAFETY INSTRUCTIONS
Read all warnings and instructions in this
manual and all related manuals. Save these
instructions.
Related Manuals:
3A2243
309495
308491
309277
310894
3A2245
3A2528
Mark VII Max
ti18238a
Mark X Premium
3A2244A
EN
Mark X Max

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Summary of Contents for Graco Mark VII Max

  • Page 1 Repair Mark VII Max, Mark X Premium and Mark X Max 3A2244A Electric Airless Sprayers For Portable Airless Spraying of Architectural Coatings and Paints. For professional use only. Not approved for use in European explosive atmosphere locations. 3300 psi (227 bar, 22.7 MPa) Maximum Working Pressure...

  • Page 2: Models

    Texture (12.7mm x 15m + (12.7mm x 30m + 9.5mm x 3.7m whip) 9.5mm x 3.7m whip) 24L996 ✓ ✓ ✓ ✓ Mark VII MAX - Europe 24L997 ✓ ✓ ✓ ✓ Mark VII MAX - MultiCord 24M734 ✓ ✓...

  • Page 3: Table Of Contents

    Electrical ......13 Graco Standard Warranty ....36 Motor Control Board .

  • Page 4: Warnings

    Warnings Warnings 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-specific risks. When these symbols appear in the body of this manual, refer back to these Warnings. Product-specific hazard symbols and warn- ings not covered in this section may appear throughout the body of this manual where applicable.
  • Page 5 Check hoses and parts for signs of damage. Replace any damaged hoses or parts. • This system is capable of producing 3300 psi (227 bar, 22.7 MPa). Use Graco replacement parts or accessories that are rated a minimum of 3300 psi (227 bar, 22.7 MPa).
  • Page 6 Warnings WARNING EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury. • Do not operate the unit when fatigued or under the influence of drugs or alcohol. • Do not exceed the maximum working pressure or temperature rating of the lowest rated system component. See Technical Data in all equipment manuals.

  • Page 7: Component Identification

    Component Identification Component Identification ti18239a Digital Display Trigger Lock 10 / 16 Amp Switch ™ Bearing Housing / ProConnect ON/OFF Switch Drain Tube Hose Reel Guide Tool Box Pressure Control Unit / Serial Tag Spray / Prime / Fast Flush Hose Reel Filter E-Control...

  • Page 8: Grounding

    Grounding Grounding Do not place pail on a nonconductive surface such as paper or cardboard which interrupts grounding continuity. The equipment must be grounded to reduce the risk of static sparking and electric shock. Electric or static sparking can cause fumes to ignite or explode. Improper grounding can cause electric shock.

  • Page 9: Pressure Relief Procedure

    Pressure Relief Procedure Pressure Relief Procedure 4. Turn pressure to lowest setting. Make sure you are not in E-Control Mode (see Operation manual). Trigger gun to relieve pressure. This equipment stays pressurized until pressure is manually relieved. To help prevent serious injury from pressurized fluid, such as skin injection, splashing fluid and moving parts, follow the Pressure Relief Proce- dure when you stop spraying and before cleaning,...

  • Page 10: Troubleshooting

    Troubleshooting Troubleshooting Mechanical/Fluid Flow Perform Pressure Relief Procedure; page 9. 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 CODE XX is displayed Fault condition exists Determine fault correction from table, page 13.
  • Page 11 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 Pump output is low Pump rod damage Repair pump. See pump manual. Low stall pressure Turn pressure knob fully clockwise.
  • Page 12 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 1. Air in pump or hose 1. Check and tighten all fluid connections. Pump is difficult to prime Cycle pump as slowly as possible during priming.

  • Page 13: Electrical

    Troubleshooting Electrical Symptom: Sprayer does not run, stops running, or will not shut off. Perform Pressure Relief Procedure; page 9. Keep clear of electrical and moving parts during trou- bleshooting procedures. To avoid electrical shock haz- ards when covers are removed for troubleshooting, wait 5 minutes after unplugging power cord for stored elec- tricity to dissipate.
  • Page 14 Troubleshooting TYPE OF PROBLEM WHAT TO CHECK HOW TO CHECK Sprayer does not run at all Check transducer or transducer Set sprayer to OFF and disconnect power to connections (control board is not sprayer. Digital display shows CODE 3 detecting a pressure signal). Check transducer and connections to control board.
  • Page 15 Troubleshooting TYPE OF PROBLEM WHAT TO CHECK HOW TO CHECK Sprayer does not run at all Control is commanding motor to run Remove pump and try to run sprayer. If motor runs, but motor shaft does not rotate. check for locked or frozen pump or drive train. Digital display shows CODE 5 Possibly locked rotor condition, an If sprayer does not run, continue to step 2.
  • Page 16 Troubleshooting TYPE OF PROBLEM WHAT TO CHECK HOW TO CHECK Sprayer does not run at all Control is commanding motor to run Perform Field Short Test: Test at large 4-pin motor but motor shaft does not rotate. field connector. There should not be continuity from Digital display shows CODE 5 Possibly locked rotor condition, pin 4, the ground wire, and any of the remaining...
  • Page 17 Troubleshooting TYPE OF PROBLEM WHAT TO CHECK HOW TO CHECK Sprayer does not run at all Allow sprayer to cool. If sprayer runs NOTE: Motor must be cooled down for the test. when cool, correct cause of Digital display shows CODE 6 Check thermal device connector (yellow wires) overheating.
  • Page 18 Troubleshooting Sprayer Will Not Run (See following page for steps) Remove control box cover. Turn sprayer ON. Observe control board status light on control board See Step 1. Do See Step 2. Do (see page 13). you have over you have over 100 VAC No light Repair or...
  • Page 19 Troubleshooting STEP 1: STEP 2: Plug power cord in Plug power cord in 200-240V 200-240V and turn switch ON. and turn switch ON. Connect probes to Connect probes to on/off switch. Turn on/off switch. Turn meter to AC Volts. meter to AC Volts. STEP 3: STEP 4: Check motor thermal switch.
  • Page 20 Troubleshooting Sprayer Will Not Shut Off 1. Perform Pressure Relief Procedure; page 9. Leave 2. Remove control box cover so the control board prime valve open and power switch OFF. status light can be viewed if available. Troubleshooting Procedure Plumb pressure gauge into paint Mechanical problem: See the proper hose, plug sprayer in, and turn power fluid pump manual for the sprayer for...

  • Page 21: Motor Control Board

    Motor Control Board Motor Control Board Removal ti18287a 1. Turn power OFF. Wait 5 minutes for power to dissi- 7. Remove ground wire from control board assembly. pate. Perform Pressure Relief Procedure, page 9. 2. Remove display, control panel, and control box. ti18288a 8.

  • Page 22: Filter Board

    Filter Board Filter Board 7. Disconnect motor control board power connectors (K) from filter board (146). Removal 1. Turn power OFF. Wait 5 minutes for power to dissi- pate. Perform Pressure Relief Procedure, page 9. 2. Remove four screws and display cover. ti18381a 8.

  • Page 23: Pressure Adjust Potentiometer

    Pressure Adjust Potentiometer Pressure Adjust Potentiometer Removal 6. Remove gasket (115), nut and potentiometer (82) from control panel (68). 1. Turn power OFF. Wait 5 minutes for power to dissi- pate. Perform Pressure Relief Procedure, page 9. ti18393a 2. Remove display. Installation 1.

  • Page 24: Pressure Control Transducer

    Pressure Control Transducer Pressure Control Transducer Removal Installation 1. Install transducer and o-ring in valve block. Torque to 47 - 61 N•m (35 - 45 ft-lb). 2. Press tab on transducer connector and push trans- ducer wire through grommet. 1. Turn power OFF. Wait 5 minutes for power to dissi- pate.

  • Page 25: Fast Flush Switch Replacement

    Fast Flush Switch Replacement (Mark VII Only) Fast Flush Switch Replacement (Mark VII Only) Removal 5. Unscrew Fast Flush switch from control panel. 1. Turn power OFF. Wait 5 minutes for power to dissi- pate. Perform Pressure Relief Procedure, page 9. 2.

  • Page 26: Drive And Bearing Housing Replacement

    Drive and Bearing Housing Replacement Drive and Bearing 5. Remove four screws (14) and washers (12) and remove bearing housing (83) and connecting rod. Housing Replacement NOTICE Do not drop gear cluster when removing drive housing ti15883a or damage will occur. Gear cluster could stay 6.

  • Page 27: Motor Replacement

    Motor Replacement Motor Replacement Removal 5. Remove motor wires from blade baffle and remove baffle. 6. Loosen two nuts (19) and screws (23) on side near control. 1. Turn power OFF. Wait 5 minutes for power to dissi- pate. Perform Pressure Relief Procedure, page 9. 2.

  • Page 28: Displacement Pump Replacement

    Displacement Pump Replacement Displacement Pump 7. Ratchet pump door forward. Replacement Removal 8. Twist latch u-bolt out of pump door recess. 1. Flush pump. 2. Stop pump with piston rod in its lowest position. 3. Perform Pressure Relief Procedure, page 9. 4.
  • Page 29 6. Tighten latch and rotate latch lock into locked posi- rod. tion. 7. Attach drain hose to sprayer. 8. Fill pump with Graco TSL until fluid flows onto top of seal. ti5492b 2. Slide pump into connecting rod. Push pump pin until it is fully retained.

  • Page 30: Hose Reel

    Hose Reel Hose Reel Removal 4. Remove swivel. Be sure to keep your head clear of hose reel while winding up hose. 1. Remove hose fitting from swivel cap and completely remove hose. ti18682a 5. Remove snap ring. ti18462a ti13542a 2.
  • Page 31 Hose Reel Installation 1. Grease shaft. 4. Install swivel. 5. Install E-clip and swivel cap. 6. Route hose through bottom rails and install hose to swivel. ti13537a 2. Make sure two washers and wave spring are on hub before hose reel is installed. ti18462a 7.

  • Page 32: Check Valve Repair

    Check Valve Repair Check Valve Repair 6. Replace o-rings (4), ball housing (2), ceramic ball (3), and seat (5). 1. Flush pump. Turn power OFF. Wait 5 minutes for power to dissipate. Perform Pressure Relief Procedure, page 9. 2. Separate drain hose from sprayer. ti18593a 7.
  • Page 33 Check Valve Repair 10. Verify latch lock is in locked position. 12. Fill pump with Graco TSL until fluid flows onto top of seal. ti6204a ti18421a 11. Attach drain hose to sprayer. ti18426a 3A2244A...

  • Page 34: Wiring Diagrams

    Wiring Diagrams Wiring Diagrams Mark VII Units: 'LJLWDO 'LVSOD\ $  $ 6ZLWFK 3RWHQWLRPHWHU EODFN EOXH 3UHVVXUH 7UDQVGXFHU Filter Board )DVW )OXVK 6ZLWFK EURZQ EOXH 212)) 6ZLWFK 0RWRU 7KHUPDO /HDGV JUHHQJURXQG 6ZLWFK EURZQ EOXH 0RWRU 3RZHU 3OXJ ti18290a 0RWRU 6HQVRU /HDGV 3A2244A...

  • Page 35: Mark X Units

    Wiring Diagrams Mark X Units: Digital Display 10A - 16A Switch Potentiometer Pressure Transducer Filter Board ON/OFF Switch green/ground Motor Thermal Leads Switch Motor Power Plug ti18684a Motor Sensor Leads 3A2244A...

  • Page 36: Graco Standard Warranty

    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:

Mark x premiumMark x max24l99624l99724m73424l998 ... Show all

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