PC120‑6 No‑OEM‑PC120‑6‑Main‑Lift‑Valve Main Lift Valve Compatible with Excavator

1. Product Overview & Wholesale Price Range

The PC120‑6 Main Lift Valve (Part # No‑OEM‑PC120‑6‑Main‑Lift‑Valve) is a critical boom‑lift hydraulic control component for PC120‑6 excavator hydraulic circuit. It regulates boom lifting pressure and oil flow, controls boom lifting performance, and solves typical malfunctions including slow boom lifting, insufficient lifting force, boom sinking and lifting jitter.

• Factory Wholesale Price: $130 – $235 USD Direct factory price for hydraulic repair workshops
• Material Specifications: High‑strength alloy steel, precision grinding machining, stable pressure output, sensitive lifting response, long service lifespan
• MOQ & Bulk Discount: 1 Unit, favorable price for large‑volume maintenance orders
• Lead Time: 1‑3 working days, adequate stock supports global logistics delivery
• Warranty: 12‑month replacement warranty, full hydraulic pressure testing finished before dispatch

2. Application Scope

Perfectly fits PC120‑6 excavator boom hydraulic control system and construction machinery overhaul works:

• Hydraulic Overhaul: Direct replacement for worn, stuck or failed original main lift valve assembly.
• Lifting‑Fault Repair: Resolve slow boom lifting, weak lifting capacity and boom self‑dropping problems.
• Repair Workshop: Accurate dimensional match, convenient installation, reliable lifting‑control performance.
• Overseas Parts Dealer: Stable inventory supply, complete QC records support cross‑border spare‑parts trading.

3. Common Main Lift Valve Failure Troubleshooting

• Fault 1: Excavator Boom Lifts Slowly, Lifting Power Weak
  Cause: Valve spool wear, internal dirt blockage, control spring fatigue.
  Solution: Install brand‑new No‑OEM‑PC120‑6‑Main‑Lift‑Valve main lift valve, flush hydraulic circuit and replace filter element.
• Fault 2: Boom Sinks Naturally Without Operation
  Cause: Spool sticking, internal oil channel blocked by impurities.
  Solution: Fit PC120‑6 No‑OEM‑PC120‑6‑Main‑Lift‑Valve main lift valve, thoroughly clean the whole hydraulic oil loop.
• Fault 3: Boom Lifting Jitter, Unstable Lifting Movement
  Cause: Internal component abrasion, spring deformation and failure.
  Solution: Replace complete main lift valve assembly, check hydraulic oil cleanliness condition.
• Fault 4: Oil Leakage At Main Lift Valve External Joints
  Cause: Seal ring aging, mating surface scratch damage.
  Solution: Change full valve assembly or matching seal repair kit.

4. Matching Hydraulic Spare Parts Recommendation

5. Frequently Asked Questions

Q1: How do I confirm this main lift valve is suitable for my machine?
A: Please confirm excavator model, mounting dimension and hydraulic pressure parameters, provide No‑OEM‑PC120‑6‑Main‑Lift‑Valve for fast compatibility verification.

Q2: What quality inspection will be carried out before goods dispatch?
A: Every PC120‑6 main lift valve undergoes strict hydraulic flow and pressure test to guarantee stable lifting‑control performance.

Q3: What points need attention while installing main lift valve?
A: Keep mounting surface clean to prevent dirt entering valve interior, exhaust air from hydraulic circuit after finishing installation.