Bulletin HY13-1650-M1/USA
Piston Pump Service Procedure
P2 / P3 Series
Parker Hannifin Corporation
Hydraulic Pump/Motor Division
Greeneville, Tennessee US
9
Control is malfunctioning.
• Clean, petroleum-based solvent
• Vise with soft jaws
• Air pressure source
• Arbor press
• Screw driver
• Breaker bar
• Torque wrench-(Nm) ft lbs: Range: 0-425 Nm
• Adjustable crescent wrench
• Fluid mineral oil ISO VG 32 @ 40
o
C
• Clean corrosion resistant grease, oil or petroleum jelly.
• Hex bits and Allen Keys (or T-handle).
Metric: 3mm, 5mm, 6mm, 8mm, 10mm, 12mm and 14mm
SAE: 1/8”, 5/32”, 3/16”, 3/8”, 1/2”, 9/16” and 5/8”
• Sockets (deepwall)
Metric: 17mm, 19mm, 32mm or 36 mm and 38 mm
SAE: 9/16” and 1”
• Internal snapring pliers: small and large
• Box end wrench: 13mm (1/2”), 17mm deep offset
• Pencil magnet
• Loctite 242
CAUTION: Mixing greases that have different bases can be detrimental to bearing life.
Tools and Materials Required for Servicing
Troubleshooting Checklist
Trouble Cause Remedy
Clean orifices in control of contamination. Confirm
orifice and plugs are properly assembled.
If torque control pump, is saturation orifice in place.
Pump won’t
compensate
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