Graco NXT M02 Series Instructions - Parts Manual Download

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Instructions/Parts

NXT

Air Motor

312796B

For use with high performance finishing and coating pumps in hazardous and
non-hazardous locations.

Models M02xxx, M04xxx, M07xxx, M12xxx, and M18xxx

100 psi (0.7 MPA, 7.0 bar) Maximum Working Pressure

See page 3 for model information

Important Safety Instructions

Read all warnings and instructions in this
manual. For complete warnings and
instruction see your pump or package
manual. Hazard symbols refer to specific
procedure risks. Save all instructions.

TI11836A

Summary of Contents for NXT M02 Series

Page 1: ...02xxx M04xxx M07xxx M12xxx and M18xxx 100 psi 0 7 MPA 7 0 bar Maximum Working Pressure See page 3 for model information Important Safety Instructions Read all warnings and instructions in this manual For complete warnings and instruction see your pump or package manual Hazard symbols refer to specific procedure risks Save all instructions TI11836A ...

Page 2: ...or Parts All Models 17 Air Valve Parts 19 Kits and Accessories 21 Dimensions 22 Mounting Hole Diagrams 23 Technical Data 25 Graco Standard Warranty 26 Graco Information 26 Related Manuals Manual Description 312792 Merkur Displacement Pump 312793 Bellows Style Displacement Pump 312794 Merkur Pump Assembly 312795 Bellows Style Pump Assembly 312797 Merkur Spray Packages AA and airless ambient 312798 ...

Page 3: ... of drugs or alcohol Do not exceed the maximum working pressure or temperature rating of the lowest rated system compo 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 s warnings For complete information about your material request MSDS forms from ...

Page 4: ... clear of moving parts Do not operate equipment with protective guards or covers removed Pressurized equipment can start without warning Before checking moving or servicing equipment fol low the Pressure Relief Procedure in this manual Disconnect power or air supply PERSONAL PROTECTIVE EQUIPMENT You must wear appropriate protective equipment when operating servicing or when in the operating area o...

Page 5: ...Fifth Digit Data Monitoring Sixth Digit M Air Motor 02 200 cc 2 5 in x 2 5 in L Low noise T DataTrak 0 not assigned 04 400 cc 3 5 in x 2 5 in N None DataTrak Cycle Count Only Compatible 07 700 cc 4 5 in x 2 5 in 12 1200 cc 6 0 in x 2 5 in 18 1800 cc 7 5 in x 2 5 in Do not operate the air motor without a plumbed exhaust line or muffler installed Air Motor Part No Series Displacement cc Stroke in Pi...

Page 6: ...Muffler M18xxx models have a second muffler see inset D Pilot valve E Manifold F Solenoid release button DataTrak models only G Ground screw H Solenoid bracket DataTrak models only J Solenoid DataTrak models only K Reed switch assembly DataTrak models only FIG 1 NXT Air Motor components A B C D F G H J K ti12645a E Model M04LT0 shown C M18xxx models have two mufflers ti12753a D D ...

Page 7: ...he air motor when the valve is closed Be sure the valve is easily accessible from the pump and located downstream from the air regulator Air regulator Adjusts air pressure to the motor and fluid outlet pres sure of pump Locate it close to the pump Install a gauge to read air pressure Air filter Removes harmful dirt and moisture from compressed air supply FIG 2 Ground wire GS U ti12914a Trapped air...

Page 8: ...alves 19 See page 12 Air continuously exhausting around air motor piston rod Damaged u cups 3 Replace piston rod u cups 3 See page 13 Air continuously exhausting from muffler Damaged air valve plate 105 or cup 112 Replace or service air valve 17 See page 9 Air motor bounces at top of stroke Damaged bottom pilot valve Replace bottom pilot valve 19 See page 12 Air motor bounces at bottom of stroke D...

Page 9: ...uspect the spray 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 loosen completely Clear hose or tip obstruction Repair Air Valve Replace Complete Air Valve 1 Stop the pump at the middle of its stroke Relieve the pressure See procedure at left 2 Di...

Page 10: ...ble the Air Valve 1 Perform steps 1 5 under Replace Complete Air Valve page 9 2 See FIG 5 Use a 10 Torx screwdriver to remove two screws 109 Remove the valve plate 105 cup 112 and spring 111 3 Remove the snap ring 110 from each end Use the piston to push the end caps 107 117 out of the ends Remove end cap o rings 106 119 4 Remove the piston 102 Remove the u cup seals 108 from each end and the dete...

Page 11: ...Repair 312796B 11 FIG 6 Air valve assembly 118 117 119 110 26 110 107 107 109 105 112 111 103 102 DataTrak ti11840a 25 101 104 32 31 110 1 1 Models 1 1 1 1 1 1 Apply lubricant 106 106 108 108 ...

Page 12: ...ps 107 117 into the housing 6 Install a snap ring 110 on each end to hold end caps in place 7 Install the spring 111 Lubricate and install the air valve cup 112 Align the small round magnet with the air inlet 8 Install the valve plate 105 Tighten the screws 109 to hold it in place Replace Pilot Valves 1 Stop the pump at the middle of its stroke Relieve the pressure See page 9 2 Disconnect the air ...

Page 13: ...he air and fluid hoses the ground wire and the tie rod shield 3 Hold the flats of the air motor piston rod with a wrench Use another wrench to loosen the coupling nut CN 4 Remove the tie rod nuts TN 5 Use a socket to remove the mounting screws MS 6 Lift up on the air motor to remove it The tie rods and drip shield will remain attached FIG 9 Coupling nut removal CN TN ti12815a FIG 10 Air motor remo...

Page 14: ...from the top and bottom cover 6 Remove the tie bolts 7 Remove the top cover Remove the o ring 9 8 Remove the shield 12 from around the cylinder Remove the cylinder 11 9 Depending on your displacement pump model you may need to remove an adapter from the bottom of the piston assembly 10 Slide the piston assembly 5 straight up off the bot tom cover 11 Remove o ring 8 from around the piston 12 Remove...

Page 15: ...om cover 1 8 Lubricate and install the o ring 9 on the top cover 13 9 M07xxx M12xxx and M18xxx only Install the upper bumper on the top cover 10 Carefully place the top cover on the cylinder 11 so the manifold surfaces of the top and bottom covers align Be sure the shield is in the groove on the top cover 11 Install the tie bolts 10 hand tight 12 Install two gaskets 14 on the manifold 15 Install t...

Page 16: ...arts 19 13 12 11 17 20 14 1 9 9 3 3 8 5 15 18 19 10 22 31 26 25 16 2 2 2 2 2 2 2 2 Apply lubricant 1 Torque varies by motor size M02xxx M04xxx 11 13 ft lb 15 18 N m M07xxx M18xxx 25 30 ft lb 34 40 N m 1 29 ti11900a 28 34 ...

Page 17: ...3 COVER upper 1 15M291 15M128 15M780 15M665 15M398 14 GASKET manifold 2 Not sold separately See Air Motor Seal Kit page 21 or Manifold Assembly 15 this table 15 MANIFOLD assembly includes 14 16 and 18 qty 4 1 24A579 24A579 N A 24A580 24A580 16 GASKET air valve 1 Not sold separately See Air Motor Seal Kit page 21 or Manifold Assembly 15 this table 17 VALVE air see page Standard DataTrak Compatible ...

Page 18: ... 1 Not sold sepa rately See Bumper Kit 28 this table 30 SCREW M5 flat head M18xxx only 3 31 SWITCH reed DataTrak models only 1 24A032 24A032 24A032 24A032 32 SCREW reed switch M4 x 25 DataTrak models only 1 15V014 15V014 15V014 15V014 33 CLAMP hose DataTrak models only 1 15V684 15V684 15V684 15V684 34 ADAPTER muffler M12xxx M18xxx 1 2 15T560 15T560 Ref Description Qty M02xxx M04xxx M07xxx M12xxx M...

Page 19: ...Air Valve Parts 312796B 19 Air Valve Parts 118 117 119 110 26 110 107 107 109 105 112 111 103 102 108 108 DataTrak Models 25 101 104 32 31 110 ti11840a 106 106 ...

Page 20: ... Valve End Cap Kit Other 101 HOUSING 1 102 AIR VALVE PISTON 1 103 DETENT PISTON ASSEMBLY 1 104 DETENT CAM 1 105 PLATE air valve 1 106 O RING 2 107 CAP standard DataTrak Compatible 2 1 108 U CUP 2 109 SCREW 2 Screws Kit 24A359 pack of 10 110 SNAP RING 2 111 DETENT SPRING 1 112 CUP 1 117 CAP DataTrak models only 1 118 BUTTON solenoid release DataTrak models only 1 119 O RING DataTrak models only 1 1...

Page 21: ...24A354 24A354 Air Motor Seal Kit 24A539 24A543 N A 24A547 24A551 Air Valve Repair Kit 24A537 24A537 24A538 24A538 24A538 Air Valve Seal Kit 24A535 24A535 24A536 24A536 24A536 Air Valve End Cap Kit Standard for Air Valves 24A351 and 24A352 24A360 24A360 24A361 24A361 24A361 Air Valve End Cap Kit DataTrak Compati ble for Air Valves 24A353 and 24A354 24A362 24A362 24A363 24A363 24A363 Screws Kit Incl...

Page 22: ...nch mm E inch mm Weight lb kg M02xxx 6 8 172 9 2 233 6 2 157 4 2 107 5 1 130 4 5 2 0 M04xxx 6 8 172 9 2 233 7 8 198 5 6 142 5 8 147 6 7 3 0 M12xxx 7 5 190 9 9 251 11 4 290 8 6 218 11 7 297 24 10 9 M18xxx 7 5 190 9 9 251 12 9 328 10 1 257 14 8 375 26 5 12 0 B A C D E ti12729a ti12730a ...

Page 23: ... 5 in M04xxx 3 5 in Two M8 mounting holes Three 5 8 11 tie rod holes Three 3 8 24 tie rod holes 4 1 2 in 114 mm bolt circle 3 1 4 in 83 mm bolt circle Two M8 mounting holes 3 1 4 in 83 mm bolt circle Three 3 8 24 tie rod holes ti12734a ti12733a ti12736a ti12735a 2 2 in 56 mm 3 0 in 76 mm ...

Page 24: ...holes Four 3 8 16 optional mounting holes Three 5 8 11 tie rod holes Two M8 mounting holes 5 906 in 150 mm bolt circle Two M8 mounting holes Three 5 8 11 tie rod holes 5 906 in 150 mm bolt circle ti12738a ti12737a ti12740a ti12739a 3 38 in 86 mm 2 0 in 50 mm 5 250 in 133 mm 3 1 in 78 mm 5 250 in 133 mm 3 1 in 78 mm ...

Page 25: ...5 in Air inlet size M02xxx M04xxx M07xxx M18xxx 1 4 in 1 2 in Maximum motor speed Do not exceed maximum recommended speed of fluid pump to prevent premature pump wear 60 cycles per minute Sound data M02xxx Air Motor Sound power Sound pressure 82 8 dBA 72 9 dBA M04xxx Air Motor Sound power Sound pressure 83 4 dBA 73 5 dBA M12xxx Air Motor Sound power Sound pressure 80 1 dBA 70 2 dBA M18xxx Air Moto...

Page 26: ...sclose any defect in material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE Graco s sole obligation and buyer s sole remedy for...

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