In daily construction work, hydraulic hoses are core consumables that directly affect the normal operation of excavators.For owners and maintenance teams of Komatsu PC200 series machines, finding well-fitted, durable replacement parts has always been a top priority.That is why we developed part number 20Y-62-51332.This Excavator Hydraulic Oil Hose is tailor-made for Komatsu's classic 20-ton excavator lineup.It works flawlessly with PC200-7, PC200-8 and PC200-8M0, and also matches PC210-7, PC220-7, PC220-8 and derivative models like PC240-8 that share the same hydraulic pipeline layout.We always suggest technicians refer to the original factory drawings before installation, to guarantee a precise fit on every unit.
Working on construction sites means equipment has to cope with high pressure, dust, moisture and dramatic temperature changes all year round.We take these harsh operating environments fully into account during design.This hose adopts a mature three-layer composite structure.The inner nitrile rubber layer delivers outstanding oil resistance, effectively stopping internal fluid leakage even under continuous pressure.Reinforced with a single braided steel wire layer, it can withstand frequent pressure surges generated by hydraulic systems.The outer chloroprene rubber cover resists abrasion, UV radiation and aging, so the hose will not crack or wear out easily after long-term outdoor use.All connecting flanges are made of high-strength galvanized steel to fight rust.Through professional crimping processing, joints and the hose form an integral whole, fully meeting Komatsu's original equipment standards and eliminating hidden leak risks.
As a key component installed on medium and high-pressure hydraulic circuits, this Excavator Hydraulic Oil Hose connects the main pump, distribution valve and boom cylinder to transmit power steadily.It is widely used in earthwork, mining and river dredging projects, scenarios that demand heavy loads and frequent mechanical movements.Its adaptable working temperature ranging from -40℃ to +120℃ allows it to function stably across cold northern regions and hot southern areas.A small tip for longer service life: do not leave the hose bent or twisted for a long time, and keep it away from sharp metal parts and high-temperature areas to avoid bulging and damage.
Standardized installation is the premise of safe and stable operation.Before starting work, remember to fully release residual pressure inside the hydraulic system to prevent oil splashes.Check the part number, size and joint angle against the old hose, clean the connecting surfaces and prepare supporting O-rings and gaskets in advance.When fastening flange bolts, use a torque wrench and tighten them diagonally and evenly to avoid uneven stress.Plan a reasonable routing path to prevent the hose from being stretched, squeezed or rubbed by surrounding components.Never force or pull the hose while installing the second joint.
After assembly, run the excavator without load for a preliminary inspection, checking for leakage, bulging or deformation.Follow up with a full-load test to confirm the whole hydraulic system works smoothly.We also recommend installing protective sleeves for extra protection.Simple maintenance like this can greatly extend the service cycle of this Excavator Hydraulic Oil Hose, helping you cut down equipment maintenance costs in the long run.
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