Bulletin HY13-1650-M1/USA
Piston Pump Service Procedure
P2 / P3 Series
Parker Hannifin Corporation
Hydraulic Pump/Motor Division
Greeneville, Tennessee US
4
Pump Design Features
P2 Series Piston Pump features include:
• New functionality adds value - Parker’s line of variable piston pumps are compact, with a low noise level and a high self-
priming speed. Our new pump line also boasts a unique port layout and generates less pressure pulsations than previous
designs.
• Compact and easy to install - Attaching this pump to your machinery is easy because of its compact design and unique
port layout. Normally it will not require an offset gearbox, which will lower the total installation cost.
• Less noise to insulate - The rigid housing design, combined with the reduced pressure ripple, decreases airborne as well
as hydraulic generated noise. These features will significantly reduce the need for costly insulation.
• Reliable - High self-priming speed and the reduced pressure ripple increase the service life of
the pump while lowering maintenance costs of the system.
• Flexible - The modular design of the P2 line will readily accommodate future control variations.
- Adjustable maximum displacement stop is standard.
- Inlet and outlet gage ports are standard.
1. Input shaft
2. Seal carrier with shaft seal
3. Spherical roller bearing
4. Saddle bearing
5. Swashplate
6. Ball seat
7. Retainer
8. Housing
9. Piston with piston shoe
10. Valve plate
11. Servo piston
12. Control
13. Rear cover
1 2 3 4 5 6 7 8 9 10 11 12 13
P2 Series
Note:
Picture illustrates
P2-060 & P2-075
construction.
(Torque Control
Option not shown).
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