Field Activity Report Template


Technical Intervention Report

Intervention Date: 12/08/2025

Technician's Name: Jean-Claude

Site: Factory B, Production Line No. 4

Intervention Number: 20250812-4B

Problem and Diagnosis:

  • Intervention Subject: Preventive maintenance on the hydraulic cutting machine.

  • Problem Description: A drop in pressure was noted in the hydraulic system, leading to a loss of cutting precision.


Actions Taken:

  • Oil Level Check: The level was below the minimum requirement.

  • Drainage: A full drain was not necessary.

  • Oil Refill: Hydraulic oil was added.


Intervention Details:

  • Type of Oil Used: Hydraulic Oil ISO VG 46

  • Quantity of Oil Added: 25 litres

  • Cleaning: Dusting and cleaning of the air filters.

  • Functional Tests: Machine restarted, pressure tests were conclusive.

  • Result: Pressure has returned to its optimal level, and the machine is functioning correctly.


Recommendations and Comments:

  • Next Intervention: An oil level check is scheduled in 6 months.

  • Jean-Claude's Comment: "The cylinder seal is starting to show signs of wear. Its replacement should be scheduled during the next major maintenance to prevent a leak."