ELECTRICAL
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CX EXCAVATORS
ELECTRIC/HYDRAULIC
Automatic Power Boost, CX210/CX240
1) In H and S work mode the controller will activate the power boost solenoid to increase
main relief pressure.
2) This increase is automatic with out action by the operator.
3) The increase will activate for 8 seconds.
4) Power boost is on full time in L mode.
Note: The controller needs a rpm signal from the engine controller for power boost.
When operating in mode H or S, the main controller monitors the ratio between:
- The load on the engine transmitted by the engine controller.
- The load on the hydraulic system transmitted by the pressure transducers on pump1 and
pump2.
If the pressure of P1 or P2 is higher than 4351 psi and the load ratio remains within a range
of ± 5% for 2 seconds, the controller sends 24v to activate the power boost solenoid for 8
seconds which increases the main pressure. The instrument panel will display “Power Up”.
To reactivate automatic power boost the load must be released and applied again.
When the travel or the hydraulic option pressure switch is activated, the controller
deactivates the power boost solenoid valve.
The power boost solenoid is located in the six solenoid valve located in the pump
compartment.
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