pc120-5 pc120-6 Distribution Valve Cover Drain Pin Cast Iron Cap

In this video, we provide a detailed walkthrough of the PC120-5 and PC120-6 excavator distribution valve cover drain pin cap. You'll see how this small but critical cast iron component protects the hydraulic system from contamination, prevents leaks, and ensures reliable excavator operation. We demonstrate its installation location, maintenance procedures, and explain why timely replacement is essential for avoiding valve contamination and functional breakdowns.