Graco Dyna-Star 25T843 Instructions Manual Download

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Manual 3A7718A

Instructions/Parts

Dyna-Star

Pump

Air Motors

For use on Dyna-Star Air Motor piston pumps, which are used in grease transfer
applications. For professional use only.

Model 26A938, Series A, 7.5 in. Air Motor
Model 26A939, Series A, 6.0 in. Air Motor

See page 3 for model information, including maximum
working pressure and approvals.

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Important Safety Instructions

Read all warnings and instructions in this
manual and in your pump or package
manual

before using the equipment.

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all instructions.

Manual



(English)

Description

3A7519

Dyna-Star 200:1 and Dyna-Star 120:1
Grease Pumps

Summary of Contents for Dyna-Star 25T843

Page 1: ...7 5 in Air Motor Model 26A939 Series A 6 0 in Air Motor See page 3 for model information including maximum working pressure and approvals Related Manuals Important Safety Instructions Read all warnin...

Page 2: ...ure 10 Repair Air Valve 10 Replace Complete Air Valve 10 Replace Seals or Repair Air Valve 11 Disassemble the Air Valve 11 Reassemble the Air Valve 12 Replace Pilot Valves 12 Repair Air Motor 13 Disas...

Page 3: ...part number Not sale able part numbers FIG 1 ID Air Motor Part Number Replacement Air Motor Part Number Series Stroke in Piston Diameter in mm Maximum Air Inlet Pressure psi MPa bar 26A938 25T843 A 4...

Page 4: ...thout warning Before checking moving or servicing equipment follow the Pressure Relief Procedure and disconnect all power sources FIRE AND EXPLOSION HAZARD When flammable fluids are present in the wor...

Page 5: ...y with genuine manufacturer s replacement parts only Do not alter or modify equipment Alterations or modifications may void agency approvals and create safety hazards Make sure all equipment is rated...

Page 6: ...r Motor Kit Components A Air valve B Pilot valve bottom pilot valve is out of view C Top cover D Bottom cover E Manifold F Ground screw Lift Ring Shrouds and fittings G Air inlet 1 2 in npt f H Air ou...

Page 7: ...ect the ground wire Y to the ground screw Z located on the bottom of the air motor 2 Connect the other end of the ground wire Y to a true earth ground The equipment must be grounded to reduce the risk...

Page 8: ...Recycling and Disposal 8 Manual 3A7718A Recycling and Disposal End of Product Life At the end of a product s useful life recycle it in a responsible manner...

Page 9: ...piston rod Damaged u cups 3 33 Replace piston rod u cups 3 33 see page 13 Air continuously exhausting muffler Damaged air valve plate 105 or cup 112 Replace or service air valve 17 see page 10 Damaged...

Page 10: ...ection Replace Complete Air Valve 1 Stop the pump in the middle of its stroke Follow Pressure Relief Procedure page 10 2 Disconnect the air lines 3 Remove screws 18 see Parts page 16 4 Remove the air...

Page 11: ...Valve 1 Perform steps 1 4 from Replace Complete Air Valve page 10 2 Use a 2 mm or 5 64 hex key to remove the two screws 109 FIG 4 3 Remove the valve plate 105 cup 112 and spring 111 FIG 4 4 Remove th...

Page 12: ...Install a snap ring 110 onto each end to held the end caps in place 7 Install the spring 111 8 Lubricate and install the air valve cup 112 9 Align the small round magnet with the air inlet 10 Install...

Page 13: ...er Reassemble the Air Motor NOTE Use NLGI No 1 bentone based grease for lubricant For easier reassembly begin with the top cover 13 turned over on the workbench then reassemble the air motor from top...

Page 14: ...attach the air valve 13 Tighten the tie bolts 10 halfway Work in a criss cross pattern Continue to tighten the bolts in criss cross pattern and torque to 25 30 ft lb 33 9 40 7 N m 14 Lubricate and in...

Page 15: ...Notes Manual 3A7718A 15 Notes...

Page 16: ...32 2 4 13 29 5 9 2 11 8 2 5 3 2 9 2 28 33 2 4 19 2 4 10 1 1 14 18 4 16 18 4 17 15 Torque to 95 105 in lb 10 7 11 9 N m Press to snap fit 2 2 5 29 30 Upper Bumper Only used on Air Motor Model 26A938 3...

Page 17: ...0 Bolt tie hex head 4 6 15M315 15M315 11 Cylinder motor 1 Not sold separately See Replacement Air Motor Part Number Models page 3 12 Screw ground 1 116343 116343 13 Cover upper 1 15M665 15M398 14 Gask...

Page 18: ...anual 3A7718A Kits Air Motor Seal Kits Air Valve Parts Air Motor Model Air Motor Seal Kit 26A938 24A551 26A939 24A547 Apply lubricant 1 110 110 106 1 106 1 107 107 108 1 108 1 102 109 105 112 1 111 10...

Page 19: ...End Cap Kit 24A361 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 2 108 U CUP 2 109 SCREW 2 Screws Kit 24A359 pack...

Page 20: ...Dimensions 20 Manual 3A7718A Dimensions t in Air Motor Model A inch mm B inch mm C inch mm Weight lb kg 26A939 11 7 297 11 4 290 8 5 216 23 0 10 4 26A938 11 7 297 12 9 328 10 0 254 29 0 13 1...

Page 21: ...xhaust port size 3 4 in npt f Maximum motor speed 60 cycles per minute Noise dBa 26A939 Sound power 77 5 dBa Sound pressure 70 7 dBa 26A938 or 26A939 Sound power 77 2 dBa Sound pressure 70 5 dBa Sound...

Page 22: ...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...

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