Water-Jet-Parts-Initiator-XN5-220.1595.3-1

Short Description:

Used for BFT/BHDT pump.
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Details

Product Name: Initiator / Piston Position Sensor Target (Part No. XN5/220)

Description:
This component is an “Initiator,” which functions as a magnetic target or ferrous actuator for the intensifier pump‘s proximity switch (position sensor) . It is a precision steel component that is mechanically linked to the reciprocating hydraulic piston.

As the piston travels inside the hydraulic cylinder, this initiator moves past the sensing face of the external proximity switch. The sensor detects the metal mass of the initiator to determine the piston’s exact end-of-stroke position, sending an electrical signal to the control system to reverse the hydraulic flow. It is a critical component for the intensifier‘s control logic, ensuring proper shift timing.

Applications:

Serves as the moving sensing target (actuator) for the intensifier pump‘s piston position sensor.
Triggers the signal that reverses the directional control valve to sustain the intensifier’s reciprocating action.
Used in BFT intensifier assemblies (models CP022001/2 and HT022012/172) .

Features:

Magnetic/Ferrous Material: Specifically engineered to be detected by inductive proximity switches (Hall Effect sensors).
Mechanically Linked: Physically attached to or part of the piston rod assembly to ensure accurate position tracking.
Durable Construction: Designed to withstand the harsh high-pressure hydraulic environment and mechanical shock.
Critical Control Component: Works in conjunction with the proximity switch (e.g., XN5/220 or equivalent). Failure results in erratic shifting or complete pump stoppage.

Maintenance:

Failure Diagnosis:

Intensifier Fails to Shift: The pump stops at the end of its stroke and does not reverse direction.
Erratic Shifting: Inconsistent timing or “double stroking” caused by a missing or weakened signal.
No Sensor Response: The proximity switch does not toggle state when the piston is manually moved past the sensor.

Inspection and Replacement Guidelines:

Full Depressurization (Critical): Lock out the main electrical disconnect, fully depressurize the hydraulic system, and follow lockout/tagout procedures before removal.
Inspection: During a major pump overhaul, inspect the initiator for physical damage, cracks, wear, or loosening from the piston assembly.
Replacement Criteria: Replace the initiator immediately if it is physically damaged, corroded, or if the pump fails to shift after confirming the proximity switch and wiring are functional.
Installation: Ensure the initiator is correctly oriented and fully seated in its mounting position. Verify the correct air gap between the initiator and the proximity switch sensor per the service manual (typically 1-3mm).

Cross-Reference Information: