a)
Increase engine speed to about 1,500 – 1,600 rpm.
Close valve (6) gradually while watching pressure increase indicated on gauge (4) and take reading of relief pressure (maximum hydraulic pressure).
If relief pressure is not as specified, replace P/S pump.
Relief pressure
M13 engine model: 6,400 – 8,400 kPa (65 – 85 kg/cm², 925 – 1208 psi)
K9K engine model: 8,400 – 9,100 kPa (85 – 92 kg/cm², 1208 – 1308 psi)
1.
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P/S fluid reservoir
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3.
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Steering gear box
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2.
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P/S pump
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5.
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High pressure side
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b)
Next, open gauge valve (6) fully and increase engine speed to about 1,500 – 1,600 r/min. Then turn steering wheel to the left or right fully and take reading of relief pressure.
If lower than 6,400 kPa (65 kg/cm², 1280 psi), failure in steering gear. (M13 engine model)
If lower than 8,400 kPa (85 kg/cm², 1208 psi), failure in steering gear. (K9K engine model)
Relief pressure
M13 engine model: 6,400 – 8,400 kPa (65 – 85 kg/cm², 925 – 1208 psi)
K9K engine model: 8,400 – 9,100 kPa (85 – 92 kg/cm², 1208– 1308 psi)
1.
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P/S fluid reservoir
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4.
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Oil pressure gauge
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2.
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P/S pump
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5.
|
High pressure gauge
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3.
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Steering gear box
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