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DX380 Hydraulic main pump Excavator parts genuine new

No Discharge / No Flow 1. Pump rotation is reversed
2. Pump not primed (empty casing)
3. Suction line blocked
4. Broken pump shaft or coupling		 1. Check motor wiring and correct rotation direction
2. Fill the pump casing with clean oil
3. Clean the suction strainer/filter
4. Inspect and replace damaged parts
Insufficient Flow or Pressure 1. Worn internal components
2. Low oil viscosity (too thin)
3. Clogged inlet filter
4. Relief valve stuck open or leaking		 1. Repair or replace the pump
2. Change to the correct hydraulic oil
3. Clean or replace the filter element
4. Inspect, clean, or adjust the relief valve
Excessive Noise or Vibration 1. Air entering the suction line (Aeration)
2. Cavitation (Oil starvation)
3. Misalignment of coupling
4. Worn or damaged bearings		 1. Tighten suction line fittings and check seals
2. Increase oil level, clean suction strainer, or reduce suction lift
3. Re-align the pump and motor shafts
4. Replace the bearings
Oil Overheating 1. Oil viscosity too high (too thick)
2. System pressure set too high
3. Clogged oil cooler
4. Excessive internal leakage		 1. Use oil with the correct viscosity grade
2. Check and adjust the pressure relief valve setting
3. Clean the cooler and check the fan
4. Inspect pump and valves for wear
External Oil Leakage 1. Loose mounting bolts or fittings
2. Damaged seals or O-rings
3. Cracked housing		 1. Tighten all bolts and pipe joints to spec
2. Replace worn shaft seals and gaskets
3. Repair or replace the pump housing
Pump Vibration 1. Loose mounting bolts
2. Misalignment between pump and motor
3. Suction line too small or restricted		 1. Securely tighten the pump base bolts
2. Re-align the pump and motor (use a dial indicator)
3. Check suction line size and remove restrictions

$1,560.00

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DX380 Hydraulic main pump Excavator parts genuine new
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Model No.:DX380
Brand:Doosan
Out-of-warranty Service:Video Technical Support, Online Support, Spare Parts
Where To Provide Local Services (in Which Countries Are There Overseas Service Outlets):None
Showroom Location (in Which Countries Are There Sample Rooms Overseas):None
Video Factory Inspection:Provided
Mechanical Test Report:Not Available
Marketing Type:New Product 2020
Place Of Origin:Afghanistan
Warranty Period:1 Year
Service System:Online Support, No After-Sales Service, Field Maintenance And Repair Service

1. Please confirm the final price and inventory with customer service before placing an order.
2. We also provide Amazon, Ebay, Shopee, Ozon, Mercado Libre and other shopping platforms for transactions. Please contact our customer service if necessary. (These online shopping malls have a limited number of shelves, and the product you need may not be included. We can generate a separate link for you）
3. We can provide multiple options for some products (original brand new, refurbished, used, Equivalent substitutes, etc.). Please contact our Customer Service for more information.
Customer Service Manager WHATSAPP: +8615016276679（Click the button on the upper left corner of the website to contact）
Customer Service Manager Email: zengduff@marginalhyd.com

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