NAVAJO CHIEFTAIN SERVICE MANUAL
TABLE VI-II. LEADING PARTICULARS, HYDRAULIC POWER PACK (WIEBEL TOOL)
NOMENCLATURE
Operating Pressure
Main Relief Valve Pressure (Primary)
Hand Pump Relief Valve Pressure (Secondary)
Hand Pump Relief Valve Reseat Pressure
Low Pressure Thermal Relief Vent Valve "Open"
Low Pressure Thermal Relief Vent Valve "Closed"
Priority Valve Cracking Pressure
Hand Pump Check Valve Cracking Pressure
Landing Gear Position Release
Time Delay Valve
Hydraulic Fluid Required
Weight Dry - Power Pack
Hydraulic Fluid Flow Rate (Both Pumps Operating)
WTC 2135-1
1900 P.S.I.
1900 P.S.I.
2100 P.S.I. Max.
1900 P.S.I. Min.
0 to 100 P.S.I.
150 P.S.I. Max.
600 P.S.I.
1 to 3 P.S.I.
750-1250 P.S.I.
5 to 9 seconds
MIL-H-5606
10.50 pounds
1.6 G.P.M.
WTC 2135-3
1800 P.S.I.
1800 P.S.I.
2000 P.S.I. Max.
1800 P.S.I. Min.
0 to 100 P.S.I.
150 P.S.I. Max.
600 P.S.I.
1 to 3 P.S.I.
750-1250 P.S.I.
5 to 9 seconds
MIL-H-5606
10.50 pounds
1.6 G.P.M.
Reissued: 9/23/80
HYDRAULIC SYSTEM
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