What is the main purpose of conducting a drift check during hydraulic line inspections?

The main purpose of conducting a drift check during hydraulic line inspections is to test lines and boom holding valves. A drift check is specifically designed to evaluate hydraulic systems for any movement of the load when the controls are placed in the neutral position. This is crucial for safety as any drift could indicate a failure in the hydraulic system or issues with the holding valves that must be addressed to prevent accidents or equipment malfunctions.

By ensuring that the lines and boom holding valves are functioning correctly, operators can confirm that loads are being held securely when they should be stationary. This practice is integral to verifying the reliability of hydraulic systems, especially in lifting operations where the safety of personnel and equipment is paramount.