Piper Navajo PA-31 Service Manual page 307

PIPER NAVAJO SERVICE MANUAL
TABLE VI-I. LEADING PARTICULARS, HYDRAULIC POWER PACK (OZONE)
NOMENCLATURE
OAS2930-1
OAS2930-3, -5 and -7
Operating Pressure
1500 P.S.I.
1800 P.S.I. (-3, -5)
1900 P.S.I. (-7)
Main Relief Valve Cracking Pressure
1500 P.S.I.
1800 P.S.I.
(Primary)
Hand Pump Relief Valve Cracking
2000 P.S.I.
1950 P.S.I. (-3)
Pressure (Secondary)
2000 P.S.I. (-5)
2100 P.S.I. (-7)
Hand Pump Relief Valve Reseat
1500 P.S.I.
1500 P.S.I.
Pressure
Low Pressure Thermal Relief Vent
50 P.S.I.
50 P.S.I.
Valve Cracking Pressure
Low Pressure Thermal Relief Vent
150 P.S.I.
150 P.S.I.
Valve Reseat Pressure
Priority Valve Cracking Pressure
600 P.S.I.
600 P.S.I.
Hand Pump Check Valve Cracking
10 P.S.I.
10 P.S.I.
Pressure
Landing Gear Position Release
750-1250 P.S.I.
750-1250 P.S.I. (-3, -5)
1650-1775 P.S.I. (-7)
Time Delay Valve
5 to 9 seconds
5 to 9 seconds
Hydraulic Fluid Required
MIL-H-5606
MIL-H-5606
Reservoir Operating Capacity
2.46 pints
2.46 pints
(Engine Pump)
Reservoir Capacity (Emergency)
0.935 pints
0.935 pints
Weight Dry - Power Pack
10.50 pounds
10.50 pounds
Hydraulic Fluid Flow Rate
1.6 G.P.M.
1.6 G.P.M.
(Both Pumps Operating)
*Pressures noted above are maximum.
Reissued: 10/12/79 HYDRAULIC SYSTEM
2B1