Description
Product Overview
The high-power high-pressure oil pump operates for a long time under extremely high oil pressure, 180℃ cabin temperature, and diesel impurity erosion conditions. This may cause the rubber sealing components to harden and crack, the main shaft oil seal to leak, the bearings to wear and produce abnormal sounds, and the oil passage sealing points to leak pressure, which can lead to slow establishment of rail pressure, difficulty in equipment startup, dilution of engine oil by fuel, and increased wear inside the oil pump. This complete maintenance package covers all internal and external seals and low-loss components of the oil pump, with dimensions fully matching the 320 series oil pump housing structure. During maintenance, all aging parts are replaced simultaneously, significantly extending the service life of the oil pump as a whole, and is suitable for maintenance of mining excavators and heavy-duty loaders with high-pressure oil pumps.
Core advantages of the set
Multi-specification dual-color fluorine rubber seals, fully isolating fuel leakage at all points
Equipped with black and green multi-sized O-rings, combined with double-piece main frame rotating oil seal and triangular plane pump cover gasket; the fluorine rubber material is resistant to diesel corrosion and high temperature, and does not easily harden or deform under long-term high-pressure conditions, sealing all sealing points of the oil pump's intake port, main shaft, pump cover, and valve body, preventing oil leakage and pressure loss in the internal and external oil circuits.
High-precision steel support bearings, eliminating transmission abnormal sounds
Equipped with precise rolling support bearings, made of quenched steel, which is wear-resistant and impact-resistant. After replacing the aging and worn bearings, it eliminates abnormal sounds in the oil pump operation, eccentric and wear of the main shaft, and stabilizes the power transmission, avoiding oil pressure attenuation caused by single-sided wear of the plunger.
Solid positioning pin shaft + micro steel balls, repairing the internal pressure control structure
Built-in long positioning pin shaft and micro sealing steel balls are used for the oil pump flow regulating valve, plunger cavity positioning sealing, repairing valve core sticking and internal fuel backflow pressure loss problems, stabilizing the working oil pressure of the common rail system.
Yellow plastic protective plug + micro fuel filter, dual protection against protection and filtration
Multi-specification yellow sealing protection plugs, used to seal oil circuit ports during storage and transportation, preventing dust and impurities from entering the precision cavity; equipped with a micro yellow filter, after assembly, it filters fine impurities to avoid plunger and valve core being scratched and stuck.
Special triangular three-hole flat gasket, uniform force during pump cover assembly
Special triangular positioning sealing gasket, with matching holes and the pump cover, after assembly, the force is uniform, without local compression and damage, completely solving the oil leakage problem at the pump cover joint surface, without the need for on-site cutting and processing.
Standardized complete set of accessories, completing the major overhaul of the entire pump in one step
Each set includes all the seals, bearings, positioning components, and protective accessories needed for the major overhaul of one oil pump, eliminating the cumbersome process of separately purchasing oil seals, rubber rings, and bearings, reducing the inventory pressure of maintenance stores, and improving maintenance efficiency.
Assembly component details
Multi-specification black and green high-pressure fluorine rubber O-rings
2 pieces of brown frame main rotating oil seal
1 piece of triangular three-hole flat sealing gasket
1 precision steel support bearing
1 solid metal positioning pin shaft
3 yellow oil circuit dust-proof protective plugs
1 micro fuel filter
1 micro sealing steel ball component Applicable scenarios
Adaptation assembly for the 320 series high-pressure oil pump of large mining excavators, heavy-duty wheeled loaders, and large power diesel generators in mines. Suitable for the overhaul of heavy construction machinery's high-pressure common rail oil pumps in heavy-duty engineering machinery operating under 24-hour full-load, high-temperature vibration, and high-pollution diesel conditions in mining areas.
Product basic parameters
Product name: 891826-320D High-Pressure Oil Pump Overhaul Maintenance Package
Compatible oil pump model: 320 series construction machinery high-pressure oil pump
Sealing material: High-temperature-resistant and oil-resistant fluororubber
Bearings / pin shaft material: Tempered and quenched alloy steel
Gasket material: Oil-resistant composite sealing sheet
Applicable conditions: Continuous high-pressure oil supply under extremely high pressure, long-term high-temperature vibration in the engine compartment, outdoor dusty and impure diesel environment for heavy electronic control common rail diesel engines
Product status: New complete set of overhaul parts, factory completed with high-pressure sealingity and wear resistance and aging resistance tests
Packaging: Independent sealed plastic packaging set, components placed in separate areas to prevent scattering and loss, supports single-piece packaging, bulk purchase of entire cases, and is compatible with cross-border small items / full-case logistics
