803164967 high pressure hose assembly for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Part Number：803164967
Product Name：High Pressure Hose Assembly
Applicable Model：XCMG ZL50G, ZL50GL Wheel Loader
Material：Oil-resistant inner rubber, multi-layer steel wire reinforcement, wear-resistant outer rubber, steel crimped fitting
Rated Working Pressure：Hydraulic system working pressure
Burst Pressure：More than 4 times of rated working pressure
Working Medium：L-HM46 anti-wear hydraulic oil
Working Temperature：-20℃ ~ 80℃
Connection form：Steel crimped joint
Inspection Items：Impulse test, burst pressure test, sealing test, dimension inspection, pull-off test

Applicable Scenarios

It is used for high-pressure power oil circuit of lifting cylinder, bucket cylinder, steering circuit and main pump output pipeline of 5-ton wheel loader, suitable for earthwork, quarry, sand yard, port bulk cargo loading and unloading and other heavy-duty construction scenarios.

• OEM matching size, direct installation without cutting or secondary crimping, compatible with original oil ports and flanges.
• Multi-layer steel wire reinforced structure, strong pressure resistance and excellent fatigue resistance for frequent pressure pulses.
• High-quality rubber formula, outstanding oil resistance, ozone resistance and ultraviolet aging resistance, suitable for long-time outdoor use.
• Good flexibility and bending performance, reasonable minimum bending radius, no dead fold during normal movement of working arm.
• Reliable crimping between joint and hose, not easy to loose and leak oil under long-term vibration and pressure impact.
• It can absorb hydraulic vibration, reduce the transmission of impact force to valve blocks and hard pipes, and protect other hydraulic components.
• Strict factory impulse and pressure test, stable batch quality, convenient for warehouse stocking and on-site replacement.

FAQ 

Q: Can this high pressure hose be replaced by low pressure oil delivery hose?
A: It is strictly prohibited. Low-pressure hose has no steel wire reinforcement and cannot bear high system pressure, which will lead to sudden burst and oil injection.

Q: What are the common failure causes of high pressure hose assembly?
A: Common faults include outer rubber wear and cracking, steel wire corrosion, fatigue fracture at the bending part, and leakage at the crimping position.

Q: What should be checked before installation?
A: Check whether the hose surface has scratches, bulges, cracks and rust on the joint; avoid twisting, sharp bending and friction with sharp steel parts.

Q: Is it allowed to repair the leaking hose by binding or gluing?
A: Not recommended. Temporary binding cannot resist high pressure, and there is a great risk of blowout at any time, replace the whole assembly directly.

Q: What influence will too small bending radius bring to the hose?
A: Excessive bending will flatten the inner flow channel, increase pressure loss, accelerate steel wire fatigue and greatly shorten service life.

Q: How to carry out daily inspection and maintenance of high pressure hose?
A: Regularly check wear, aging and oil seepage, keep away from high-temperature exhaust parts, and replace regularly according to the service cycle.