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01
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detail
Excavator Parts SY285 SY215 SY235C SY335 SY305 ...
2025-12-13
CHAOTIAN
Guangdong, China
3 Months
Video outgoing-inspection
Provided
Machinery Test Report
Not Available
Product name
monitor
Model Name
SY215C SY235C
Packing
wooden case/catton box
Delivery time
5-7 days
condition
100% new
MOQ
1 piece
Warranty
3 months
Shipment
DHL FEDEX TNT EMS UPS
Payment
T/T,Money Gram, Western Union
02
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detail
Product Code 12025701 SY330H 365H 375H 485H 550...
2025-12-13
Emergency power cut-off
Hydraulic system deactivation
Life-threatening situation response
Uncontrollable machine motion stop
Fire emergency response
Electrical failure safety measure
Operator injury prevention
Bystander protection
Equipment damage prevention
Runaway machine control
Entanglement emergency release
Collision avoidance activation
Fuel leak emergency response
Hydraulic line rupture response
Electrical fire containment
System-wide safety override
Maintenance safety lockout
Training simulation emergency
Unauthorized operation prevention
Emergency evacuation facilitation
First responder safety enable
Catastrophic failure mitigation
Environmental hazard containment
Secondary damage prevention
Regulatory compliance requirement
ISO safety standard compliance
Safety circuit master control
Ultimate safety backup system
03
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detail
M2X63 Excavator Swing Motor SY135 CLG915 DH130 ...
2025-12-12
Variable displacement axial piston pumps (dual).
Load sensing pressure-flow compensated (LSPC) system.
Swashplate angle control for output adjustment.
Hydraulic or electro-hydraulic servo control.
Closed-center load sensing (CLSS) circuit.
Power sharing between pumps.
Pressure cut-off (PCO) function.
Horsepower matching with the engine.
Cross-sensing between pump sections.
Displacement feedback mechanism.
High-pressure rotating groups.
Stationary valve plates.
Integral charge pump for make-up flow.
Case drain and flushing circuit.
Main system relief valves.
Anti-cavitation check valves.
Pressure compensator valves.
Flow compensator valves.
Load signal network (LS lines).
Pilot pressure supply circuit.
Pump controller (electronic or hydraulic).
Proportional solenoid valves (if equipped).
Pressure transducers for control feedback.
Mounting and drive system to the engine.
Breather and case drain ports.
Filtration system for charge and case drain oil.
Temperature management via case drain flow.
Efficiency optimization logic.
Fail-safe pressure and flow limiting.
Integrated diagnostic capability.
04
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detail
Kubota U08 10-3 A55F9H8-R89830 Hydraulic pump H...
2025-12-12
Variable displacement axial piston pumps (dual).
Load sensing pressure-flow compensated (LSPC) system.
Swashplate angle control for output adjustment.
Hydraulic or electro-hydraulic servo control.
Closed-center load sensing (CLSS) circuit.
Power sharing between pumps.
Pressure cut-off (PCO) function.
Horsepower matching with the engine.
Cross-sensing between pump sections.
Displacement feedback mechanism.
High-pressure rotating groups.
Stationary valve plates.
Integral charge pump for make-up flow.
Case drain and flushing circuit.
Main system relief valves.
Anti-cavitation check valves.
Pressure compensator valves.
Flow compensator valves.
Load signal network (LS lines).
Pilot pressure supply circuit.
Pump controller (electronic or hydraulic).
Proportional solenoid valves (if equipped).
Pressure transducers for control feedback.
Mounting and drive system to the engine.
Breather and case drain ports.
Filtration system for charge and case drain oil.
Temperature management via case drain flow.
Efficiency optimization logic.
Fail-safe pressure and flow limiting.
Integrated diagnostic capability.
05
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detail
ZAX330-1 ZAX330-3 ZAX350 M5X180CHB-10A-64B 9236...
2025-12-12
Visual inspection for leaks – Check all connections, seals, and housing for hydraulic oil leaks.
Monitor swing performance – Note any slowing, jerking, or loss of power during rotation.
Listen for unusual noises – Grinding, whining, or knocking sounds may indicate wear.
Check pump mounting bolts – Ensure they are tight and secure to prevent misalignment.
Inspect drive coupling – Look for cracks, wear, or damage in the flexible coupling.
Monitor hydraulic oil temperature – Abnormal heat may indicate pump inefficiency.
Check case drain flow – Excessive leakage from the drain line suggests internal wear.
Verify system pressure – Use gauges to ensure swing circuit pressure is within specifications.
Inspect electrical connections – For electronically controlled pumps, ensure connectors are clean and tight.
Observe swing drift – Excessive drift when stopped may indicate pump or valve issues.
Check breather/filter cap – Ensure it is clean and functioning to prevent contamination.
Maintain proper oil level – Check and top up hydraulic oil regularly.
Use recommended hydraulic oil – Follow manufacturer’s viscosity and quality specifications.
Change hydraulic filters – Replace at specified intervals to prevent contamination.
Monitor oil cleanliness – Perform oil analysis if possible to detect early wear.
Check pump alignment – Misalignment causes premature wear and vibration.
Inspect suction line – Ensure it is free of restrictions or air leaks.
Bleed air from the system – If pump operation is noisy or erratic.
Clean the pump exterior – Remove dirt and debris to improve heat dissipation.
Lubricate linkage points – If the pump has external control linkages.
06
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detail
Hydraulic Main Pump K5V212 XE LiuGong Zoomlion ...
2025-12-12
Variable displacement axial piston pumps (dual).
Load sensing pressure-flow compensated (LSPC) system.
Swashplate angle control for output adjustment.
Hydraulic or electro-hydraulic servo control.
Closed-center load sensing (CLSS) circuit.
Power sharing between pumps.
Pressure cut-off (PCO) function.
Horsepower matching with the engine.
Cross-sensing between pump sections.
Displacement feedback mechanism.
High-pressure rotating groups.
Stationary valve plates.
Integral charge pump for make-up flow.
Case drain and flushing circuit.
Main system relief valves.
Anti-cavitation check valves.
Pressure compensator valves.
Flow compensator valves.
Load signal network (LS lines).
Pilot pressure supply circuit.
Pump controller (electronic or hydraulic).
Proportional solenoid valves (if equipped).
Pressure transducers for control feedback.
Mounting and drive system to the engine.
Breather and case drain ports.
Filtration system for charge and case drain oil.
Temperature management via case drain flow.
Efficiency optimization logic.
Fail-safe pressure and flow limiting.
Integrated diagnostic capability.
07
view
detail
Excavator Main Pump Parts Liugong LG906E Sanhe ...
2025-12-12
Variable displacement axial piston pumps (dual).
Load sensing pressure-flow compensated (LSPC) system.
Swashplate angle control for output adjustment.
Hydraulic or electro-hydraulic servo control.
Closed-center load sensing (CLSS) circuit.
Power sharing between pumps.
Pressure cut-off (PCO) function.
Horsepower matching with the engine.
Cross-sensing between pump sections.
Displacement feedback mechanism.
High-pressure rotating groups.
Stationary valve plates.
Integral charge pump for make-up flow.
Case drain and flushing circuit.
Main system relief valves.
Anti-cavitation check valves.
Pressure compensator valves.
Flow compensator valves.
Load signal network (LS lines).
Pilot pressure supply circuit.
Pump controller (electronic or hydraulic).
Proportional solenoid valves (if equipped).
Pressure transducers for control feedback.
Mounting and drive system to the engine.
Breather and case drain ports.
Filtration system for charge and case drain oil.
Temperature management via case drain flow.
Efficiency optimization logic.
Fail-safe pressure and flow limiting.
Integrated diagnostic capability.
08
view
detail
P5V80D2D Hydraulic pump XE60W 65W 75WG Hydrauli...
2025-12-12
Variable displacement axial piston pumps (dual).
Load sensing pressure-flow compensated (LSPC) system.
Swashplate angle control for output adjustment.
Hydraulic or electro-hydraulic servo control.
Closed-center load sensing (CLSS) circuit.
Power sharing between pumps.
Pressure cut-off (PCO) function.
Horsepower matching with the engine.
Cross-sensing between pump sections.
Displacement feedback mechanism.
High-pressure rotating groups.
Stationary valve plates.
Integral charge pump for make-up flow.
Case drain and flushing circuit.
Main system relief valves.
Anti-cavitation check valves.
Pressure compensator valves.
Flow compensator valves.
Load signal network (LS lines).
Pilot pressure supply circuit.
Pump controller (electronic or hydraulic).
Proportional solenoid valves (if equipped).
Pressure transducers for control feedback.
Mounting and drive system to the engine.
Breather and case drain ports.
Filtration system for charge and case drain oil.
Temperature management via case drain flow.
Efficiency optimization logic.
Fail-safe pressure and flow limiting.
Integrated diagnostic capability.
09
view
detail
M2X63 14T SY135 DH130 DH150-7 Excavator Swing M...
2025-12-12
Closed-loop swing (in some systems)
Dedicated pump and motor circuit for precise control.
Open-loop swing
Uses a section of the main hydraulic circuit with a control valve.
Swing acceleration
Requires extra torque to overcome inertia, provided by initial pressure surge.
Swing deceleration
Controlled by metering outgoing oil flow through the control valve.
Leakage paths
Internal clearances allow minimal oil flow for lubrication and cooling.
Flushing flow
Continuous case drain flow carries away heat and wear particles.
Pressure holding function
Maintains pressure on the low side to prevent motor cavitation.
Load sensing capability
In advanced systems, signals pump to provide only needed pressure.
Swing circuit filtration
Protects the precision motor components from contamination.
Fail-safe operation
Parking brake engages automatically if hydraulic pressure is lost.
Manual release (optional)
Provision to mechanically release the parking brake for towing.
Mounting flange
Secures the motor to the swing gearbox or frame.
Alignment critical
Precise alignment with the pinion gear is essential for longevity.
Heat generation
Inefficiencies and braking action create heat managed by the hydraulic system.
Commissioning procedure
Requires proper case drain line setup and brake bleeding.
Diagnostic ports
Test ports for checking main pressure, case pressure, and brake pressure.
Integration with machine ECM
Modern systems use electronic signals for control and monitoring, working with the machine's Electronic Control Module for optimal performance
10
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detail
K3SP36C Hydraulic Main Pump Suit for YC85 , Liu...
2025-12-12
Variable displacement axial piston pumps (dual).
Load sensing pressure-flow compensated (LSPC) system.
Swashplate angle control for output adjustment.
Hydraulic or electro-hydraulic servo control.
Closed-center load sensing (CLSS) circuit.
Power sharing between pumps.
Pressure cut-off (PCO) function.
Horsepower matching with the engine.
Cross-sensing between pump sections.
Displacement feedback mechanism.
High-pressure rotating groups.
Stationary valve plates.
Integral charge pump for make-up flow.
Case drain and flushing circuit.
Main system relief valves.
Anti-cavitation check valves.
Pressure compensator valves.
Flow compensator valves.
Load signal network (LS lines).
Pilot pressure supply circuit.
Pump controller (electronic or hydraulic).
Proportional solenoid valves (if equipped).
Pressure transducers for control feedback.
Mounting and drive system to the engine.
Breather and case drain ports.
Filtration system for charge and case drain oil.
Temperature management via case drain flow.
Efficiency optimization logic.
Fail-safe pressure and flow limiting.
Integrated diagnostic capability.
11
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detail
Hydraulic Piston Pump V90N130 for Excavator Mai...
2025-12-12
Daily visual inspection – Check for external leaks, cracks, or damage.
Monitor hydraulic oil level – Ensure it is within the recommended range before operation.
Check oil temperature – Avoid operation beyond the specified temperature limit.
Listen for abnormal noises – Unusual sounds may indicate cavitation or internal wear.
Inspect pump mounting bolts – Ensure they are tight and secure.
Verify drive coupling condition – Look for wear, cracks, or misalignment.
Check suction lines and filters – Prevent restrictions or air ingress.
Monitor system pressure – Use gauges to detect abnormal fluctuations.
Inspect case drain line – Ensure it is unobstructed and not leaking excessively.
Maintain oil cleanliness – Change filters regularly and use clean oil.
Avoid dry running – Always prime the pump before starting.
Warm up the system – Operate at low pressure and flow in cold conditions.
Prevent contamination – Keep the reservoir and fill area clean.
Check for overheating – Monitor pump housing temperature during operation.
Avoid prolonged operation at maximum pressure – Reduce stress on the pump.
Inspect hoses and fittings – Look for wear, leaks, or loose connections.
Verify proper belt tension – For belt-driven pumps, ensure correct tension.
Monitor oil condition – Look for discoloration, foam, or contamination.
Check for air in the system – Bleed air if foaming or erratic operation occurs.
Ensure adequate ventilation – Prevent heat buildup around the pump.
Follow manufacturer’s operating limits – Adhere to pressure and flow specifications.
Use recommended hydraulic oil – Follow viscosity and grade requirements.
Avoid sudden pressure spikes – Operate controls smoothly to prevent shocks.
Inspect electrical connections – For electric-driven pumps, ensure secure wiring.
Record operating hours – Schedule maintenance based on service intervals.
Check alignment – Ensure the pump is properly aligned with the drive source.
Monitor pump vibration – Excessive vibration may indicate imbalance or wear.
Test relief valve function – Verify proper pressure relief during operation.
Keep maintenance records – Document inspections, repairs, and part replacements.
Train operators – Ensure they understand proper pump operation and early warning signs of failure
12
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detail
Distribution Valve LIUGONG CLG906E HVSE-12-08-P...
2025-12-12
High precision flow control
Excellent load sensitivity
Low pressure loss design
Smooth and precise operation
Energy efficient performance
Compact and modular construction
Excellent sealing technology
Long service life reliability
Low noise operation
Minimal internal leakage
Fast response characteristics
Excellent anti-cavitation performance
Strong anti-pollution capability
Wide viscosity range compatibility
Easy maintenance design
Multiple spool configuration options
Excellent pressure compensation
Smooth combined operation capability
Reduced energy consumption
High power-to-weight ratio
Precision machining quality
Stable performance under varying loads
Excellent manufacturing consistency
Corrosion resistant materials
Wide temperature range operation
Easy system integration
Cost-effective solution
Proven durability in harsh conditions
Reduced heat generation
Comprehensive technical support
13
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detail
DXTSM72 Excavator Spare Parts XE135 XE155B XE13...
2025-12-12
Closed-loop swing (in some systems)
Dedicated pump and motor circuit for precise control.
Open-loop swing
Uses a section of the main hydraulic circuit with a control valve.
Swing acceleration
Requires extra torque to overcome inertia, provided by initial pressure surge.
Swing deceleration
Controlled by metering outgoing oil flow through the control valve.
Leakage paths
Internal clearances allow minimal oil flow for lubrication and cooling.
Flushing flow
Continuous case drain flow carries away heat and wear particles.
Pressure holding function
Maintains pressure on the low side to prevent motor cavitation.
Load sensing capability
In advanced systems, signals pump to provide only needed pressure.
Swing circuit filtration
Protects the precision motor components from contamination.
Fail-safe operation
Parking brake engages automatically if hydraulic pressure is lost.
Manual release (optional)
Provision to mechanically release the parking brake for towing.
Mounting flange
Secures the motor to the swing gearbox or frame.
Alignment critical
Precise alignment with the pinion gear is essential for longevity.
Heat generation
Inefficiencies and braking action create heat managed by the hydraulic system.
Commissioning procedure
Requires proper case drain line setup and brake bleeding.
Diagnostic ports
Test ports for checking main pressure, case pressure, and brake pressure.
Integration with machine ECM
Modern systems use electronic signals for control and monitoring, working with the machine's Electronic Control Module for optimal performance
14
view
detail
Toshiba SG025 YC85 SY75 LIUGONG907 Construction...
2025-12-12
Closed-loop swing (in some systems)
Dedicated pump and motor circuit for precise control.
Open-loop swing
Uses a section of the main hydraulic circuit with a control valve.
Swing acceleration
Requires extra torque to overcome inertia, provided by initial pressure surge.
Swing deceleration
Controlled by metering outgoing oil flow through the control valve.
Leakage paths
Internal clearances allow minimal oil flow for lubrication and cooling.
Flushing flow
Continuous case drain flow carries away heat and wear particles.
Pressure holding function
Maintains pressure on the low side to prevent motor cavitation.
Load sensing capability
In advanced systems, signals pump to provide only needed pressure.
Swing circuit filtration
Protects the precision motor components from contamination.
Fail-safe operation
Parking brake engages automatically if hydraulic pressure is lost.
Manual release (optional)
Provision to mechanically release the parking brake for towing.
Mounting flange
Secures the motor to the swing gearbox or frame.
Alignment critical
Precise alignment with the pinion gear is essential for longevity.
Heat generation
Inefficiencies and braking action create heat managed by the hydraulic system.
Commissioning procedure
Requires proper case drain line setup and brake bleeding.
Diagnostic ports
Test ports for checking main pressure, case pressure, and brake pressure.
Integration with machine ECM
Modern systems use electronic signals for control and monitoring, working with the machine's Electronic Control Module for optimal performance
15
view
detail
M5X130 CLG210 CLG220 SY215-8 SY215-9 Excavator ...
2025-12-12
Closed-loop swing (in some systems)
Dedicated pump and motor circuit for precise control.
Open-loop swing
Uses a section of the main hydraulic circuit with a control valve.
Swing acceleration
Requires extra torque to overcome inertia, provided by initial pressure surge.
Swing deceleration
Controlled by metering outgoing oil flow through the control valve.
Leakage paths
Internal clearances allow minimal oil flow for lubrication and cooling.
Flushing flow
Continuous case drain flow carries away heat and wear particles.
Pressure holding function
Maintains pressure on the low side to prevent motor cavitation.
Load sensing capability
In advanced systems, signals pump to provide only needed pressure.
Swing circuit filtration
Protects the precision motor components from contamination.
Fail-safe operation
Parking brake engages automatically if hydraulic pressure is lost.
Manual release (optional)
Provision to mechanically release the parking brake for towing.
Mounting flange
Secures the motor to the swing gearbox or frame.
Alignment critical
Precise alignment with the pinion gear is essential for longevity.
Heat generation
Inefficiencies and braking action create heat managed by the hydraulic system.
Commissioning procedure
Requires proper case drain line setup and brake bleeding.
Diagnostic ports
Test ports for checking main pressure, case pressure, and brake pressure.
Integration with machine ECM
Modern systems use electronic signals for control and monitoring, working with the machine's Electronic Control Module for optimal performance
16
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detail
Hydraulic Main Pump AP2D16 Excavator Main Pump ...
2025-12-12
Industry-leading volumetric efficiency
Ultra-low noise operation
Extended service life design
Energy-saving hydraulic solutions
Superior shock load resistance
Minimized internal leakage technology
Wide viscosity range compatibility
Compact and robust construction
Smooth and precise control
Reduced maintenance requirements
High power-to-weight ratio
Excellent cold start performance
Global OEM certification
Proven reliability in harsh conditions
Advanced heat dissipation design
Environmentally conscious manufacturing
Customizable hydraulic solutions
Fast delivery and technical support
Competitive total cost of ownership
Innovative hydraulic technology
Seamless system integration
Reduced energy consumption