Graco NXT 25A641 Instructions/Parts And Repair Download

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3A3442B

Instructions/Parts and Repair

NXT

Air Motor

2.5” NXT Air Motor with 0.75” Stroke

For use with Graco fluid handling pumps. For professional use only.

Part No. 25A641

100 psi (0.7 MPa, 7.0 bar) Maximum Air Inlet Pressure

Important Safety Instructions

Read all warnings and instructions in this manual
and in all related manuals. Save all instructions.

Summary of Contents for NXT 25A641

Page 1: ...th 0 75 Stroke For use with Graco fluid handling pumps For professional use only Part No 25A641 100 psi 0 7 MPa 7 0 bar Maximum Air Inlet Pressure Important Safety Instructions Read all warnings and i...

Page 2: ...e 6 General Information 6 Repair Air Valve 6 Replace Pilot Valves 8 Repair Air Motor 10 Troubleshooting 12 Parts 13 Air Motor Parts 13 Air Motor Parts 15 Air Valve Parts 16 Technical Data 18 Graco Sta...

Page 3: ...serious injury that can result in amputation Get immediate surgical treatment Do not point the dispensing device at anyone or at any part of the body Do not put your hand over the fluid outlet Do not...

Page 4: ...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 com ponent See Technical Data in all equipment manu...

Page 5: ...he new air valve gasket 209 on the mani fold then attach the air valve 214 Torque screws 211 to 95 105 in lb 11 12 N m 6 Reconnect the air line to the motor Replace Seals or Rebuild Air Valve NOTE Air...

Page 6: ...Repair 6 3A3442B FIG 2 Air Valve Assembly 1 Apply lubricant 310 307 307 309 305 312 311 303 302 308 308 301 304 310 ti16213a 306 306 1 1 1 1 1 1 1 1...

Page 7: ...snap ring 310 on each end to hold end caps in place 7 Install the spring 311 Lubricate and install the air valve cup 312 see FIG 4 Align the small round magnet with the air inlet 8 Install the valve p...

Page 8: ...Repair 8 3A3442B FIG 5 Air Valve To Motor Assembly Apply lubricant Item 214 consists of items 301 312 1 2 TI16130a 214 211 203 204 219 209 207 205 202 211 217 207 230 1 1 1...

Page 9: ...move the air valve 214 and gasket 209 3 Remove four screws 211 and remove the manifold 220 and two gaskets 208 4 Use a 10 mm socket wrench to remove the pilot valves 213 from the top and bottom cover...

Page 10: ...n the piston 219 9 See FIG 7 Carefully place the bottom cover piston assembly on the cylinder 205 sliding the piston 219 into the cylinder The manifold surfaces of the top and bottom covers must align...

Page 11: ...od Damaged u cups 207 Replace the piston rod u cups 207 See page 9 Air continuously exhausting from muf fler Damaged air valve plate 305 or cup 312 Replace or service the air valve 214 See page 5 Air...

Page 12: ...rease 299 Torque to 35 40 ft lb 47 54 N m Torque to 11 13 ft lb 15 18 N m Torque to 95 105 in lb 10 7 11 9 N m Lubricate with grease 299 Lips face down Lips face up Torque to 30 35 ft lb 41 47 N m FIG...

Page 13: ...see page 14 GASKET manifold 2 209 Not sold separately Manifold Assembly 220 this table see page 14 GASKET air valve 1 210 24H004 KIT cover top includes 202 and 213 qty 1 of each 15X353 also includes 2...

Page 14: ...or Seal Kit 24G699 Bottom Cover Kit 24G695 Top Cover Kit 24H004 Air Motor Piston Kit 25A657 201 COVER motor bottom 202 O RING cover 203 BEARING 204 O RING piston 207 SEAL u cup 208 GASKET manifold 209...

Page 15: ...Parts 3A3442B 15 Air Valve Parts FIG 9 310 307 307 309 305 312 311 303 302 308 308 301 304 310 ti16213a 306 306...

Page 16: ...The table below shows possible kit options for each part Replacement screws 309 are available in a pack of 10 Order Kit 24A359 Ref Description Qty Air Valve Repair Kit 24A537 Air Valve Seal Kit 24A53...

Page 17: ...feet 1 m from equipment Maximum air inlet pressure 100 psi 0 7 MPa 7 0 bar Ambient air temperature range 35 120 F 2 49 C Package air inlet size 1 4 npt f Maximum motor speed Do not exceed maximum rec...

Page 18: ...n 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 WARRA...