Kobelco SK200-3 SK200-4 Swing Motor 2441U819F3 2441U804F1 For Excavator Spare Parts

Kobelco SK200-3 SK200-4 swing motor 2441U819F3 2441U804F1 for excavator spare parts

Daily Maintenance of the Slewing Motor

1. Hydraulic Oil Inspection: Ensure oil cleanliness, moisture content <0.1%, and replace filters regularly.

2. Bolt Tightening: Check for loose motor mounting bolts and pipe fittings to prevent leaks caused by vibration.

3. Temperature Monitoring: Normal oil temperature should be <80°C; overheating may indicate internal leakage or poor lubrication.

4.  

5. Disassembly and Repair of the Slewing Motor

6. Disassembly Steps:

   • Release hydraulic system pressure and disconnect oil pipes.

   • Remove brake lines and separate the motor from the reducer.

   • Inspect piston and port plate wear, and measure clearances.

7. Key Replacement Parts:

    

    

   • Pistons/cylinder block (replace in pairs if wear exceeds tolerance).

   • Bearings (recommended brands: SKF or NSK).

   • Seals (must use OEM specifications).

   Modern excavators can monitor slewing motor status via CAN bus:

    

   • Pressure Sensors: Detect inlet/return oil pressure in real time to identify internal leakage.

   • Temperature Sensors: Provide early warnings for abnormal temperature rises to prevent motor burnout.

   • Vibration Analysis: Uses frequency spectrum analysis to detect early-stage bearing or gear damage.

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FAQ

• Q: What are your terms of packing?
• A: Generally, we pack our goods in neutral wooden cartons. If you have a legally registered patent,
• we can pack the goods in your branded boxes after getting your authorization letters.
• Q: What about the payment options?
• A: PayPal, T/T, and other payments as request.
• Q: What are your terms of delivery?
• A: EXW, FOB, CFR, CIF, etc.
• Q: How about your delivery time?
• A: Generally, it will take 3 to 30 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
• Q: When can I get the price?
• A: We usually quote within 12 hours after we get your inquiry. If urgent to get the price,
• please call us or tell us by email, we will regard your inquiry priority.
• Q: How do you make our business long-term and good relationship?
• A: 1. We keep good quality and competitive price to ensure our customers benefit ;
• 2. We respect every customer as our friend and we sincerely do business and make friends with them,
• no matter where they come from.
• Q: Do you test all your goods before delivery?
• A: Yes, we have a 100% test before delivery.

Our Advantages

• Strong part number database.

• If you can provide the right model and part number, we can supply the right product.

• Professional and experienced salesperson.

• Our founder has been in this field for more than 9 years, with rich experiences.

• Strict and complete company rules.

• We will try our best to meet the customer’s delivery time. Before delivery, we must verify the part number or pictures of products one by one, to make sure that customers can receive high-quality and right-quantity goods.

• Good management system.

• No matter how big or small the order, as long as customers place the order, we will provide exporting services free of charge.

• Good service attitude.

• As long as customers’ requirements are reasonable, we will endeavor to make them satisfied.

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