Parker P1 Series - Page 58

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
58
PERFORMANCE SPECIFICATIONS
PUMP WITH LOAD SENSE COMPENSATOR
STEP
REFERENCE
CONDITION 060 075 100 140
1 Rated Speed (RPM) 1800 1800 1800 1800
4
Load sense output ow setting
at 50 ± 2 bar (725 ±30 psi)
60-63 lpm 77-79 lpm 103 - 105 lpm 145-147 lpm
5
Allowable ow variation from
50 to 260 ± 2 bar (725 to 3770 ± 30 psi)
56-66 lpm 73-83 lpm 99-109 lpm 136-156 lpm
TEST PROCEDURE
PUMP WITH LOAD SENSE COMPENSATOR
STEP
REFERENCE
CONDITION REQUIRED VALUE MEASURED VALUE
1 Set the pump speed to 1800 RPM 1800 rpm
2 Record input oil temperature 43-54 ° C (110 – 130 °F)
3A
Set output load prssure to 50 ± 2 bar
(725 ± 30 psi)
n/a n/a
3B
Adjust throttle valve and adjust differential setting
until pressure at pump outlet is 20 ± 2 bar
(290 ± 30 psi) higher than the load pressure gage
n/a n/a
4
Adjust throttle valve to required ow raqte. Adjust
output load presure valve if necessary to maintain
50 ± 2 bar (725 ± 30 psi)
See performance chart
5
Increase the output pressure to 260 ± 2 bar
(3770 ±30 psi). Verify that the ow remains within
specied limits.
See performance chart
6
Lock the load sense adjustment screw. Conrm
differential pressure at 20 ± 2 bar (290 ± 30 psi).
n/a n/a
7 Verify no external leaks No leakage permitted
060, 075, 100, 140 Pump Test Procedure