PC60‑7 No‑OEM‑PC60‑7‑Sub‑Valve Sub Relief Valve Compatible with Excavator

1. Product Overview & Wholesale Price Range

The PC60‑7 Sub Relief Valve (Part # No‑OEM‑PC60‑7‑Sub‑Valve) is the auxiliary pressure‑control component matched for PC60‑7 excavator main control valve assembly. It cooperates with main relief valve to stabilize circuit pressure, absorb instantaneous pressure surge, avoid component damage caused by pressure shock, and keep the whole hydraulic system running smoothly.

• Factory Wholesale Price: $108 – $200 USD Direct factory price for hydraulic repair workshops
• Material Specifications: High‑strength alloy steel, precision grinding, anti‑wear property, stable pressure‑limiting performance, long service cycle
• MOQ & Bulk Discount: 1 Unit, favorable quotation for bulk maintenance orders
• Lead Time: 1‑3 working days, adequate stock supports global logistics shipment
• Warranty: 12‑month replacement warranty, full hydraulic pressure test completed before shipment

2. Application Scope

Perfectly matched for PC60‑7 series excavator main control valve hydraulic system and engineering machinery overhaul jobs:

• Hydraulic Overhaul: Direct replacement for worn, stuck or pressure‑drifted original sub relief valve.
• Auxiliary Pressure Protection: Absorb pressure surge, assist main valve to maintain stable working pressure of hydraulic circuit.
• Repair Workshop: Excellent dimensional compatibility, convenient installation, reliable pressure‑control performance.
• Overseas Parts Dealer: Stable stock supply, complete QC inspection records support cross‑border spare‑parts trading.

3. Common Sub Relief Valve Failure Troubleshooting

• Fault 1: Excavator Jitter & Abnormal Vibration During Operation
  Cause: Valve spool wear, internal impurity clogging, spring fatigue deformation.
  Solution: Install new No‑OEM‑PC60‑7‑Sub‑Valve sub relief valve, clean hydraulic oil circuit and replace filter element.
• Fault 2: Hydraulic System Pressure Unstable & Pressure Surge
  Cause: Valve spool jamming, auxiliary pressure setting deviation.
  Solution: Fit PC60‑7 No‑OEM‑PC60‑7‑Sub‑Valve sub relief valve, adjust pressure value according to machine specification after assembly.
• Fault 3: Hydraulic Abnormal Noise When Action Switches
  Cause: Internal component abrasion, poor pressure‑absorbing effect.
  Solution: Replace complete valve assembly, inspect hydraulic oil cleanliness condition.
• Fault 4: Hydraulic Oil Leakage At Connection Joint
  Cause: Sealing ring aging, joint surface scratch damage.
  Solution: Replace whole valve unit or matching seal repair kit.

4. Matching Hydraulic Spare Parts Recommendation

5. Frequently Asked Questions

Q1: How do I confirm this sub relief valve fits my excavator?
A: Please verify machine model, mounting dimension and hydraulic circuit pressure parameter, provide part number No‑OEM‑PC60‑7‑Sub‑Valve for fast compatibility check.

Q2: What quality tests are done before shipment?
A: Each PC60‑7 sub relief valve passes hydraulic pressure test to guarantee stable auxiliary pressure‑limiting performance.

Q3: What should you pay attention to during installation?
A: Keep mounting surface clean to prevent dirt entering valve interior, calibrate system pressure and bleed air from hydraulic circuit after installation.