Temperature and Pressure Sending Units at Hydraulic Oil Tank

A - If oil temperature exceeds 88°C (190°F), temperature sending unit transmits a signal to indicator light and to buzzer.

B - If pressure differential in return line exceeds 90-120 kPa (0.9-1.2 bar; 13-17 psi), pressure sending unit transmits a signal to indicator light.

The filter bypass valve opens at a pressure of 170 kPa (1.7 bar) (25 psi).

NOTE: For cleaning oil cooler see "Service - Engine".

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