Complete hydraulic systems, troubleshooting, maintenance, and replacement parts for Komatsu, Caterpillar, Hitachi, Kobelco, Sany, and more construction machinery.
Complete hydraulic system specifications for 500+ construction machinery models: Komatsu, Caterpillar, Hitachi, Kobelco, Sany, XCMG, LiuGong, Doosan, Hyundai, Volvo.
500+ ModelsStep-by-step diagnosis and solutions for 200+ common hydraulic problems: pump failures, valve issues, cylinder problems, system faults.
111 FaultsComplete maintenance procedures at 50h, 250h, 500h, 1000h, 2000h intervals. Oil change, filter replacement, seal inspection.
100+ ProceduresComplete hydraulic parts catalog: pumps, valves, cylinders, seals, filters, hoses, fittings. 100% interchangeable with OEM.
1000+ Parts12 free hydraulic calculators: cylinder force, HPU sizing, flow rate, pressure drop, hose selection, valve sizing, seal selection.
12 ToolsMain Pump: 708-2L-00300 (2×200 L/min, 34.3 MPa)
Control Valve: 723-47-20401 (7-spool)
Cylinders: Boom φ140, Arm φ125, Bucket φ115
Main Pump: 708-2G-00024 (2×260 L/min, 34.3 MPa)
Control Valve: 723-48-27500 (8-spool)
Cylinders: Boom φ160, Arm φ140, Bucket φ130
Main Pump: HPV145 (2×145 L/min, 34.3 MPa)
Control Valve: UX28 (7-spool)
Cylinders: Boom φ135, Arm φ120, Bucket φ110
Main Pump: K3V140DT (2×140 L/min, 34.3 MPa)
Control Valve: KMX15 (7-spool)
Cylinders: Boom φ135, Arm φ120, Bucket φ110
Main Pump: K3V140DT (2×140 L/min, 34.3 MPa)
Control Valve: KMX15 (7-spool)
Cylinders: Boom φ140, Arm φ125, Bucket φ115
Main Pump: 315-4400 (2×200 L/min, 35 MPa)
Control Valve: 315-4401 (8-spool)
Cylinders: Boom φ140, Arm φ125, Bucket φ115
Pump noise, cavitation, vibration, loose connections, air entrainment.
15 FaultsExternal leaks, internal leaks, seal failure, hose burst, fitting leaks.
20 FaultsHigh oil temperature, pump overheating, system overheating.
12 FaultsSlow movement, weak force, delayed response, low pressure.
18 FaultsNo pressure, low pressure, pressure fluctuation, pressure spikes.
14 FaultsSolenoid valve issues, directional valve problems, relief valve faults.
12 FaultsInitial inspection, oil level check, filter inspection, leak detection.
20 ProceduresOil change, filter replacement, seal inspection, hose check.
25 ProceduresComplete system inspection, pump testing, valve calibration.
30 ProceduresMajor overhaul, seal replacement, pump rebuild, system flush.
25 ProceduresVane pumps, gear pumps, piston pumps for all major brands.
200+ PartsSolenoid valves, directional valves, relief valves, proportional valves.
300+ PartsStandard cylinders, engineering cylinders, heavy-duty cylinders.
150+ PartsOil seals, piston seals, rod seals, hydraulic filters.
350+ PartsKazakhstan, Uzbekistan, Kyrgyzstan, Tajikistan, Turkmenistan. Mining, oil & gas, construction.
5 CountriesAzerbaijan, Georgia, Armenia, Turkey. Oil & gas, marine, construction.
4 CountriesVietnam, Thailand, Indonesia, Malaysia, Philippines. Construction, agriculture, mining.
5 CountriesUAE, Saudi Arabia, Qatar, Oman, Kuwait. Oil & gas, construction, marine.
5 CountriesGet expert technical support, custom hydraulic solutions, and premium replacement parts. Our team is available 24/7.
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