How to Bleed Air from Excavator Hydraulic Pump - Kyotechs
Understanding Hydraulic Systems
Hydraulic systems power modern excavators, facilitating robust and precise movements necessary for excavation work. Air within these systems interrupts hydraulic flow, leading to diminished power and potential damage. At Kyotechs, we understand that maintaining hydraulic system integrity is crucial for the functionality of your equipment. Established in 2009, Kyotechs has been a trusted provider of high-quality excavator parts, serving brands such as Hitachi, Sany, Kawasaki, Volvo, Hyundai, Doosan, Komatsu, Caterpillar, Case, and Kobelco.
Why Regular Maintenance is Crucial
Regular maintenance of your excavator's hydraulic system ensures continuing operational efficiency and longevity. Air pockets, often introduced during component replacement or repairs, can cause erratic or inefficient system performance. By following our guide, you'll be equipped to handle this potential disruption with confidence.
Step-by-Step Guide to Bleed Air from Excavator Hydraulic Pump
Step 1: Safety First
Ensure your excavator is on firm, level ground and that it is turned off. Wear appropriate personal protective equipment (PPE) before starting to avoid any potential hazards.
Step 2: Secure the Excavator
Securely place the excavator bucket or arm on the ground to prevent any movement that might result from the removal of air pockets.
Step 3: Locate the Bleed Points
Consult your excavator's manual to locate the designated bleed points on the hydraulic pump. These points allow trapped air to escape from the system.
Step 4: Prepare for Bleeding
Gather necessary tools, such as wrenches and a suitable container to catch any hydraulic fluid, preventing unnecessary spillage and environmental contamination.
Step 5: Begin the Bleeding Process
Loosen the bleed valve while keeping a close eye on any escaping air or fluid. Allow the system to naturally expel the air by gravity or air gun. Avoid any force that might damage the system components.
Step 6: Monitor Hydraulic Fluid Levels
As air is expelled, hydraulic fluid levels may drop. Continuously monitor and replenish the fluid to manufacturer-recommended levels to maintain system integrity.
Step 7: Test the Excavator
After the bleeding process is complete, test the excavator to ensure smooth and efficient operation. Look for indicators of trapped air such as noise or jerky movements.
Tips for Maintaining Hydraulic System Efficiency
- Regular Checks: Frequently check hydraulic fluid levels and bleed the system as part of regular maintenance.
- Use Quality Fluids: Ensure you're using high-quality hydraulic fluids that meet your manufacturer’s specifications.
- Timely Replacement: Replace hydraulic filters regularly to prevent contamination and prolong component life.
FAQs
Q1: How often should I bleed air from the hydraulic pump?
Regular bleeding should align with your maintenance schedule or after any repair that involved opening the hydraulic system.
Q2: What are the signs of air in the hydraulic system?
Noises such as knocking or hissing, along with erratic or delayed mechanical movements, indicate trapped air.
Q3: Can I bleed the hydraulic system myself, or should I consult a professional?
Following this guide, the process can be safely executed by yourself unless specific issues or complex systems necessitate professional expertise.
Conclusion
Maintaining your excavator's hydraulic system is essential for optimal performance and longevity. By knowing how to bleed air from an excavator hydraulic pump, you protect your machinery from potential damage and maintain peak efficiency. At Kyotechs, we are committed to providing exceptional support and parts for your excavator needs, offering a full range of quality components and repair solutions. Since our establishment in 2009, we've been synonymous with reliability and expertise in heavy machinery maintenance. Trust Kyotechs to guide you in maximizing the performance and lifespan of your equipment.
About Kyotechs
Kyotechs, established in 2009, offers an extensive range of excavator parts for leading brands such as Hitachi, Sany, and Caterpillar. Our comprehensive product lineup includes engine assemblies, hydraulic pumps, control valves, electric parts, and more. We are committed to providing one-stop solutions for excavator and engine repairs, ensuring that your machinery remains in top operational condition. Choose Kyotechs for quality, reliability, and expertise in excavator solutions.
How IC Engine & Hydraulic Pump Connect in Excavators | Kyotechs

The Ultimate Guide to the Kyotechs 9514TNV98 Engine Assy: Everything You Need to Know
Wholesale volvo excavator parts manufacturer and supplier in Guangzhou
Wholesale parts of an excavator bucket manufacturer and supplier
FAQS
Why do you need to check and replace the engine belt regularly?
Regularly checking and replacing the engine belt can prevent the belt from breaking and ensure the normal operation of the engine.
Why do you need to lubricate each joint and bearing regularly?
Regular lubrication can reduce wear, prevent corrosion, and extend the service life of each component of the excavator.
How often should the coolant be changed?
Usually the coolant is changed every two years or as recommended by the manufacturer.
What is the function of the hydraulic pump pressure relief valve?
The pressure relief valve protects the hydraulic system from damage caused by excessive pressure by releasing excess hydraulic oil when the pressure exceeds the set value.
How to resolve slow hydraulic system response?
Possible clogged filter, low hydraulic oil level, or worn pump components.
Solution: Clean or replace filter, refill hydraulic oil, inspect and replace worn components.

Excavator Spare Parts YB60000571 Pilot Valve For Hitachi ZX60

Excavator Spare Parts 8-98197654-0 Front Shock Absorber For ISUZU

Excavator Spare Parts 14714208 Control Valve For Volvo EC220E

Excavator Parts 5659737 Hydraulic Pump For Caterpillar 336GC

Bulldozer Hydraulic Main Control Valve 723-63-24100 For Komatsu D65-15

D31 Bulldozer Hydraulic Pump Ass'y 720-2M-00031 For Komatsu D31EX-21

Excavator Parts 709-15-94000 Control Valve For Komatsu PC1250

Construction Machinery Parts 708-7W-00021 Hydraulic main pump For Komatsu Dozer WA380-6
To be a happy enterprise in the field of engineering equipment.
Kyotechs delivers efficient and reliable service at each stage to meet the customer's needs.
Contact
Contact: Ally Fan
Email: kyotechs@kyotechs.com
Tel: +86 020 - 82313009
Skype: allyfan333
Mobile / Whatsapp / Wechat:
+86 - 18826315313
Address: 268 Zhongshan Avenue East, Guangzhou, Guangdong, China.
© 2024 KYOTECHS. All Rights Reserved. Designed by gooeyun
Kyotechs
Kyotechs GZ
Kyotechs
Kyotechs