P&H
Oil pressure switch for P&H CNT-650
This oil pressure switch monitors fluid levels within the engine or hydraulic system of the P&H CNT-650 crane. It triggers an electrical signal to the operator interface when pressure drops below the established safety threshold.
Compatible models
Specifications
- Part number
- 79Q495D5
- Brand
- P&H
The oil pressure switch 79Q495D5 functions as a monitoring component within the fluid management systems of heavy machinery. Its primary role involves detecting and signaling when the pressure of the lubricating oil in the engine or hydraulic circuit falls below a pre-set safety level. By sending an electrical signal to the control system or a dashboard warning light, it alerts the operator to potential mechanical failures or critical operating conditions that require immediate attention.
This component is designed for use in P&H CNT-650 cranes. It serves as a protective device for the engine and hydraulic assemblies, ensuring that operators receive timely information regarding the status of their machine's lubrication and hydraulic pressure. Proper integration of this switch is necessary for the ongoing maintenance of the crane's operational monitoring systems.
In general engineering terms, an oil pressure switch utilizes an internal diaphragm or piston that reacts to fluid pressure changes to open or close an electrical contact. This mechanism allows the machine to track pressure status continuously. By providing an early warning of pressure loss, such switches help prevent accelerated wear, overheating, and mechanical failure caused by inadequate lubrication or hydraulic pressure.

