Fault Phenomenon: Barko material handler when using the grapple, it cannot clamp logs securely, easily slips.

Troubleshooting Process:
– Checked clamping cylinder pressure: pressure low.
– Checked grapple teeth: teeth tips worn flat.
– Checked accumulator: accumulator nitrogen pressure low.
– Adjusted system pressure, sharpened teeth, recharged nitrogen.

Root Cause: Low hydraulic system pressure and accumulator failure.

Required Parts: Accumulator bladder, nitrogen.