Excavator pump assembly VIO70 172187-73100 hydraulic main pump for AP2D36-G2SP-30.07.0-SR
The hydraulic pump converts mechanical energy into hydraulic energy to power the excavator's hydraulic system. When the engine drives the pump shaft to rotate, the internal pistons or gear sets create oil suction and compression processes, forming a high-pressure oil flow. Belparts hydraulic pumps feature variable displacement design that automatically adjusts output flow according to load requirements, achieving high energy efficiency.
| Product name | Belparts excavator hydraulic main pump |
| Place of Origin: | China(mainland) |
| Model: | VIO70 |
| Part number: | 172187-73100 |
| Payment term: | T/T & PayPal |
| Delivery time: | Within 2 days after receiving the payment |
| Packing: | Standard exporting packing or as required |
Mainly engaged in excavator hydraulic pumps, final drive, travel motors, swing motors, distribution valves,control valve assy,reduction gearbox,cylinder assy and various hydraulic spare parts.
Excavator hydraulic one-stop service, we can provide Komatsu, Hitachi, Kato, Doosan, Hyundai, Sany, Liugong, Sunward Intelligent, hydraulic pumps of various tonnage models, distribution valves, travel assemblies, travel motors, swing motors and hydraulic spare parts.
| THE MODELS FOR EXCAVATOR |
| FOR HITACHI |
| EX40-1 | EX40-2 | EX55 | EX60 | EX60-2 | EX60-3 | EX60-5 | EX70 | EX75 |
| EX100 | EX110 | EX120 | EX120-1 | EX120-2 | EX120-3 | EX120-5 | EX130-1 | EX200-1 |
| EX200-2 | EX200-3 | EX200-5 | EX220-3 | EX220-5 | EX270 | EX300 | EX300-1 | EX300-2 |
| EX300-3 | EX300-5 | EX300A | EX330 | EX370 | EX400-1 | EX400-2 | EX400-3 | EX400-5 |
| EX450 | ZAX30 | ZAX55 | ZAX200 | ZAX200-2 | ZAX330 | ZAX450-1 | ZAX450-3 | ZAX450-5 |
| ZX110 | ZX120 | ZX200 | ZX200-1 | ZX200-3 | ZX200-5G | ZX200LC-3 | ZX210 | ZX210-3 |
| ZX210-5 | ZX225 | ZX240 | ZX250 | ZX270 | ZX300 | ZX330 | ZX330C | ZX350 |
| ZX450 | ZX450LC | ZX500 | ZX500LC | ZX520 | ZX670 | ZX690 | ZX870 | ZX130 |
| ZX170 | ZX170LC | ZX195 | ZX260 | ZX360 | ZX360LC | ZX400 | ZX470 | ZX490 |
| FOR KOMATSU |
| PC20-7 | PC30 | PC30-3 | PC30-5 | PC30-6 | PC40-7 | PC45 | PC45-2 | PC55 |
| PC120-6 | PC130 | PC130-7 | PC200 | PC200-1 | PC200-3 | PC200-5 | PC200-6 | PC200-7 |
| PC200-8 | PC210-6 | PC220-1 | PC220-3 | PC220-6 | PC220-7 | PC220-8 | PC270-7 | PC202B |
| PC220LC-6 | PC220LC-8 | PC240 | PC300 | PC300-3 | PC300-5 | PC300-6 | PC300-7 | PC300-7K |
| PC300LC-7 | PC350-6/7 | PC400 | PC400-3 | PC400-5 | PC400-6 | PC400LC-7 | PC450-6 | PC450-7 |
| PC600 | PC650 | PC750 | PC800 | PC1100 | PC1250 | PC2000 | PC360 | PC460 |
| FOR |
| E200B | E200-5 | E320D | E215 | E320DL | E324D | E324DL | E329DL | E300L |
| E320S | E320 | E320DL | E240 | E120-1 | E311 | E312B | E320BL | E345 |
| E324 | E140 | E300B | E330C | E120 | E70 | E322C | E322B | E325 |
| E325L | E330 | E450 | 225 | 312B | 315 | 320 | 320C | 320BL |
| 330 | 322 | 245 | 325 | 320L | 973 | 939C | 963C | 313 |
| 323 | 318 | 326 | 328 | 329 | 336 | 340 | 345 | 349 |
Hydraulic Oil: The "Lifeline" of Hydraulic Pumps
Hydraulic oil's importance to pumps equals blood's to the human heart. Improper or contaminated oil causes most hydraulic pump failures. Consider these factors when selecting hydraulic oil:
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Viscosity grade: Choose appropriate viscosity (e.g., ISO VG 46) based on ambient temperature. Excessive viscosity increases startup resistance; insufficient viscosity impairs lubrication.
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Oil quality: Select oil meeting manufacturer specifications; avoid cheap, low-quality alternatives.
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Cleanliness: Hydraulic systems demand extremely clean oil—even new oil requires filtration before use.
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Daily Inspection and Maintenance Essentials
Proper maintenance significantly extends hydraulic pump service life:
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Regularly check oil levels: Maintain proper tank levels; low levels can cause pump cavitation damage.
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Monitor oil temperature: Ideal operating temperature ranges between 40-60°C; higher temperatures accelerate oil degradation.
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Listen for abnormal noises: Unusual sounds often signal impending failure, requiring prompt inspection.
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Replace filters regularly: Change hydraulic oil filters per manufacturer recommendations to maintain oil cleanliness.
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Inspect seals: Address external leaks immediately to prevent air entering the system.
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Excavator Pump Assembly VIO70 172187-73100 Hydraulic Main Pump For AP2D36-G2SP-30.07.0-SR Images
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