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Hydraulic System Pressure Test

  1. Place a clamp on pump lower pressure hose. Disconnect high pressure line. Insert Connector (Dir. 803 ) between high pressure line and pump. Connect Pressure Gauge (Fre. 214-04 ).
  2. Disconnect clamp from hose. Bring up oil level in reservoir and turn on engine. Pressure should be 72-102 psi (5.1-7.2 kg/cm2 ) when steering wheel is not turned. If pressure is too great at idle, valve is defective.
  3. If pressure is too low during acceleration, regulator is defective. With wheel turned to lock position, pressure should be 725-943 psi (51-66 kg/cm2 ).
  4. Pressure difference between sides must not exceed 72 psi (5.1 kg/cm2 ). If it does, valve is defective. If pressure is too low but gauge needle does not move, check for loose belt, defective valve or internal leak in power cylinder.
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