KMX15 Excavator Parts Main Control Valve Solenoid Cover Repair Kit

KMX15 Main Control Valve Solenoid Cover Repair Kit Distribution Valve Drain Pin Cover Excavator Parts

I. Product Features

• Material: Mostly manufactured from cast iron or cast aluminum; plastic versions are also available.
• Shape: Small disc‑shaped or cup‑shaped part with threaded or snap‑fit structure, 20–40 mm in diameter.
• Mounting Site: Attached to the lateral or bottom surface of the main distribution valve, close to the spool end cover and oil drain opening.

Functions

• Safeguards the drain plug. With a fine hole design, the drain plug expels condensed water, contaminants and air inside the valve. The outer cover keeps mud, sand, stones and iron filings from blocking the small aperture or sticking the spool.
• Stops oil leakage and accidental touch risks. Excavators experience strong operational vibration. The cover presses the drain plug firmly to prevent loosening, avoiding hydraulic oil leakage, system pressure reduction and sluggish working movements.
• Delivers dust‑proof and anti‑corrosion effects. Construction sites are full of dust and muddy water. The cover separates moisture and impurities, protecting thread and sealing areas from rust seizure and disassembly difficulties in later service.

Daily Maintenance & Replacement

• Inspection: Check cover tightness, cracks and oil leakage during each regular check‑up.
• Maintenance: Clean dirt and sediment around the cover and fasten it securely.
• Replacement: Replace the cover promptly when cracked, thread‑damaged or unsealed. Low‑cost yet critical; improper replacement causes valve interior contamination and operational failures.

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