Graco IronMax V Repair Manual Download Page 27 | Manualshive

Page: 27 / 28

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Wiring Diagram

332252A

27

Wiring Diagram

Black

Pressure

Transducer

ON/OFF
Switch

Power Plug

Motor

green/ground

Potentiometer

Motor
Leads

Motor
Sensor
Leads

Thermal
Switch

Brown +

Blue

Blue

Brown

Blue

Black

ti21134a

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Summary of Contents for IronMax V

Page 1: ...tectural paints and coatings Not approved for use in European explosive atmosphere locations Model 278667 3300 psi 22 7 MPa 227 bar Maximum Working Pressure Important Safety Instructions Read all warn...

Page 2: ...Pressure Control Board 19 Removal 19 Installation 20 Pressure Adjust Potentiometer 21 Removal 21 Installation 21 Pressure Control Transducer 22 Removal 22 Installation 22 Drive and Bearing Housing 23...

Page 3: ...rea shall be properly grounded to protect against static discharge and sparks Use Graco conductive or grounded high pressure airless paint sprayer hoses Verify that all containers and collection syste...

Page 4: ...ecure before operating the unit Know how to stop the unit and bleed pressure quickly Be thoroughly familiar with the controls ELECTRIC SHOCK HAZARD This equipment must be grounded Improper grounding s...

Page 5: ...nent See Technical Data in all equipment manuals Use fluids and solvents that are compatible with equipment wetted parts See Technical Data in all equipment manuals Read fluid and solvent manufacturer...

Page 6: ...tip or hose is clogged or that pressure has not been fully relieved after follow ing the steps above VERY SLOWLY loosen tip guard retaining nut or hose end coupling to relieve pressure gradually then...

Page 7: ...leaking Relieve pressure Repair prime valve Verify pump does not continue to stroke when gun trigger is released Prime valve not leaking Service pump see pump manual Leaking around throat packing nut...

Page 8: ...l Displacement rod is worn or damaged Replace rod see pump manual Fluid is spitting from gun Air in pump or hose Check and tighten all fluid connections Cycle pump as slowly as possible during priming...

Page 9: ...M WHAT TO CHECK HOW TO CHECK Sprayer does not run at all See flow chart page 15 Digital display is blank Control board status light never lights Sprayer does not run at all Check transducer or transdu...

Page 10: ...ol board socket Connect power set sprayer ON and control knob to 1 2 turn clockwise If sprayer does not run set sprayer to OFF and go to next step 5 Connect a confirmed working transducer to control b...

Page 11: ...re continue to step 4 4 Set sprayer to OFF and spin motor fan 1 2 turn Restart sprayer If sprayer runs replace control board If sprayer does not run continue to step 5 5 Perform Spin Test Test at larg...

Page 12: ...to sprayer 2 Disconnect thermal device connector from control board socket Make sure contacts are clean and secure 3 Check thermal device connector yellow wires at the motor 4 Measure resistance of t...

Page 13: ...ake sure motor air intake is not blocked 3 Make sure fan has not failed 4 Make sure control board is properly secured to back plate and that conductive thermal paste is used on power components 5 Repl...

Page 14: ...ilable Troubleshooting Procedure Plumb pressure gauge into paint hose plug sprayer in and turn power switch ON Does sprayer reach or exceed its maximum pressure Unplug the transducer from control boar...

Page 15: ...ucer to the board Does the motor run Replace potentiometer See Step 3 Is the proper reading present through the thermal switch wires Replace the ON OFF switch See step 4 Does the motor run See Step 1...

Page 16: ...ug power cord in and turn switch ON Connect probes to on off switch Turn meter to AC Volts STEP 3 Check motor thermal switch Unplug yellow wires Meter should read according to Resistance Table on page...

Page 17: ...ilable Troubleshooting Procedure Plumb pressure gauge into paint hose plug sprayer in and turn power switch ON Does sprayer reach or exceed its maximum pressure Unplug the transducer from control boar...

Page 18: ...wo screws 13 and remove rear shroud 58 3 Remove screws 31 and remove front shroud 51 Installation 1 Replace front shroud 51 and tighten screws 31 to 4 5 5 1 N m 40 45 in lb 2 Replace rear shroud 58 an...

Page 19: ...Diagram page 27 5 Remove ground screw 26 and wire 6 Disconnect black and blue leads from pressure con trol board to filter board 7 Remove four screws 39 and control board box 61 8 Remove grommet and...

Page 20: ...ontrol board box 61 and tighten four screws 39 Torque to 3 4 4 0 N m 30 35 in lb 5 Install ground wire and tighten screw 26 Recon nect all wiring see Wiring Diagram page 27 Torque to 2 5 3 2 N m 22 28...

Page 21: ...o loosen two screws on knob 34 4 Remove gasket 115 and unscrew potentiometer Installation 1 Screw replacement potentiometer into place and replace gasket 115 2 Rotate new potentiometer shaft to highes...

Page 22: ...grommet 86g 6 Remove wire from retaining clip 7 Remove transducer wiring protector 88 8 Use wrench to unscrew and remove transducer 86 Installation 1 Replace transducer 86 and use wrench to tighten t...

Page 23: ...85 bearing housing 83 and tighten screws 14 Torque to 31 2 39 4 N m 23 29 ft lb 3 Replace pump page 24 4 Lift retaining spring and replace pump pin 44 5 Replace pump rod covers 96 and tighten screws...

Page 24: ...d pump rod covers 96 4 Cycle pump until pump pin is in position to be removed Turn power switch OFF and unplug power cord 5 Push up retaining spring 43 and push pump pin 44 out 6 Disconnect hose 94 an...

Page 25: ...hose 94 8 Screw jam nut 95 up onto pump until nut stops Tighten jam nut by hand then tap 1 8 to 1 4 turn with a 20 oz maximum hammer to approximately 102 N m 75 5 ft lb 9 Install pump rod covers 96 an...

Page 26: ...our mounting bolts 37 and nuts 19 under neath sprayer NOTE Make sure motor is centered on frame mounting plate Torque to 23 1 31 3 N m 17 23 ft lb 2 Reconnect all wiring connections and place wires ba...

Page 27: ...Diagram 332252A 27 Wiring Diagram Black Pressure Transducer ON OFF Switch Power Plug Motor green ground Potentiometer Motor Leads Motor Sensor Leads Thermal Switch Brown Blue Blue Brown Blue Black ti...

Page 28: ...tion prepaid If inspection of the equipment does not disclose any defect in material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and t...

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