Page Issue 01Chapter - Hydraulic System8:4
VT551 - Maintenance
FAN PUMP
If the fan pump is changed it is necessary to check the pump pressure setting.
1. Standby - 20 bar.
*Run the auxiliary engine and measure the pressure on test point T8. The standby pressure should
be set at 20 bar.
2. Main Operating Pressure - 150 bar
To check this setting enter the suction fan pressure menu 4.11.3, follow on screen instructions and
increase RP output until the pressure reading on T8 remains the same. Ensure is pressed to save
the settings.
Please note that if the CANview node (node 3) is changed, the fan pump set up will need to be
re-checked.
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