Why should you check the return line filter and magnet after running a new or rebuilt motor for the first time?

When running a new or rebuilt motor for the first time, checking the return line filter and magnet is essential because metal and debris can be generated during the break-in period of the motor. When components start to fit together under operational conditions, small metal particles can wear off and break away from the surfaces due to friction and the breaking in of parts.

Inspecting the return line filter and magnet allows for the identification and removal of these metal particles. If not addressed, this debris can circulate back into the system, potentially causing additional wear or damage to hydraulic components. Therefore, ensuring that any metal from the break-in process is captured and filtered out is vital for preventing further complications and maintaining the longevity of the motor and associated hydraulic systems. This proactive check helps in establishing a baseline of cleanliness for the hydraulic fluid and aids in maintaining optimal operational conditions moving forward.