Parker P1 Series - C Compensator

Parker Hannin Corporation
Hydraulic Pump and
Power Systems Division
Marysville, Ohio USA
Bulletin HY28-2665-02/SVC/EN
Medium Pressure Axial Piston Pumps
P1/PD Maintenance
30
“C” Compensator
Item
no.
Quantity Description NOTES / Tightening Torque
1 1
Compensator body CW rotation
Compensator body CCW rotation
2 1 Spool
3 1 Spring seat
4 1 Outer spring C0 versions only
5 1 Inner spring
6 1 Spring seat & piston
7 1 Seal piston O-ring
8 1 Spring cap O-ring
9 1 Spring cap 115 ± 7 N-m (85 ± 5 ft-lbs)
10 1 Adjusting screw
11 1 Adjusting screw Lock Nut 7.9 ± 0.8 N-m (70 ±7 in-lbs)
12 1 Socket set screw (Loctite 242) 3.4 ± 0.4 N-m (30 ± 3 in-lbs)
13 4 Hex mounting screw 5.0 ± 0.3 N-m (45 ± 3 in-lbs)
14 1 SAE #2 O-ring
15 1 Hardened SAE #2 O-ring boss plug 4.0 ± 0.6 N-m (35 ± 5 in-lbs)
17 4 Teon O-ring
18 1 Roll pin
19 1 Teon O-ring
NOTE: Individual parts are not available.
The compensator is sold as a complete assembly only.
Compensator Part Number
Rotation
C0
80 - 280 bar (1150 - 4000 psi)
C1
20 - 80 bar (300 - 1150 psi)
CW S2E-19419-5T S2E-18285-5T
CCW S2E-19249-5T S2E-18286-5T
Inner spring used for both
C0 and C1 versions.
Outer spring used C0 only.