Name: KMX32N Main Control Valve Multi-way Distributor of EC380D Excavator 14670038 14777837
Brand: Guangzhou Kawo Construction Machinery Co.,Ltd.
SKU: EC380D
Price: negotiable USD
Availability: InStock

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KMX32N Main Control Valve Multi-way Distributor of EC380D Excavator 14670038 14777837

14670038

14670038 multi-way distributor

Volvo EC380D Multi-Way Distributor

Place of Origin:

China

Brand Name:

CAVOYD

Model Number:

EC380D

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Product Details

Payment Terms:

Western Union, T/T

Warranty:

6Months

Part No:

14670038 14777837

Condition:

New / Rebuilt

Delivery Time:

3-8 Working Days

Packaging Details:

Wooden Case / Carton With Foam Protection, Or As Required

MOQ:

1 Set

Supply Ability:

300 Sets / Month

Transportation Method:

DHL, UPS, FedEx, Sea Freight

Place Of Origin:

China

Product Name:

Travel Motor Assembly / Final Drive Assembly

Applicable Mode:

EC380D

Highlight:

14670038

14670038 multi-way distributor

Volvo EC380D Multi-Way Distributor

Payment & Shipping Terms

Minimum Order Quantity

1 set

Price

Negotiable

Packaging Details

Dimension: L60×W60×H60 cm

Delivery Time

3-8 days

Payment Terms

T/T

Supply Ability

300pcs/day

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Product Description

KMX32N Main Control Valve Multi-way Distributor of EC380D Excavator 14670038 14777837

Installation & Verification Guidelines

Verify VOE part number and confirm main control valve assembly compatibility, including boom, arm, bucket, travel, swing spools, relief valves, and holding valves.
New or remanufactured valves must include hydraulic bench test reports for pressure, flow, and internal leakage of each section.
For remanufactured valves, confirm spools are honed, repaired, or new. Replace all O-rings.
Inspect valve block for casting cracks and sand holes upon arrival. Seal oil ports to prevent dirt and contaminants from entering valve cavity.
Secure valve firmly during transportation to avoid impact damage to valve block, port threads, and precision spools.
Clean hydraulic tank and pipelines before installation, replace all hydraulic filters, and fully bleed air from hydraulic system.
Test compound movements, cylinder drift, and system relief pressure after installation. Check for jerky operation, abnormal noise, and oil seepage.

Common Faults & Symptoms

Spool and Valve Bore Wear, Large Internal Leakage
- Symptoms: Weak digging power; performance worsens when hot; boom/arm cylinder sinks
- Cause: Dirty hydraulic oil scratches spool and valve bore
Spool Stuck, Slow or Jerky Movement
- Symptoms: Slow boom, arm, bucket and swing action; compound operation poor
- Cause: Oil contamination, oil sludge, damaged return spring
Relief Valve and Pressure Compensator Failure, Insufficient System Pressure
- Symptoms: Low working pressure, pressure fluctuation, whistling noise
- Cause: Worn valve core, spring fatigue, clogged damping hole
O-ring Damage, External Oil Leakage
- Symptoms: Oil seepage between valve slices and end covers
- Cause: Aged sealing rings, loose bolts, air suction causing cavitation
Holding Valve Seal Failure, Cylinder Drift
- Symptoms: Boom and arm sink slowly, worse under heavy load
- Cause: Contamination or wear on holding valve sealing surface
Valve Block Cracking (Rare but Serious)
- Symptoms: Sudden heavy oil leakage, unable to build hydraulic pressure
- Cause: Long-term pressure impact, uneven bolt tightening torque, casting defects