XCMG Quick Oil Pump Assembly OEM 800180271 – High-Pressure Manual Priming for Articulated Dump Truck Hydraulic Systems

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Parameter	Specification
OEM Part Number	800180271
Product Name	Quick Oil Pump Assembly / Manual Priming Pump / Hand Pump
Brand	XCMG (Genuine OEM)
Pump Type	Single-acting reciprocating plunger, high-pressure
Displacement per Stroke	16 ml (0.98 cu in)
Maximum Working Pressure	250 bar (3,625 PSI)
Relief Valve Setting	280 bar (4,060 PSI)
Body Material	Cast iron with epoxy coating
Plunger Material	Stainless steel, hard chrome plated
Port Thread (Inlet)	1/2″ NPT
Port Thread (Outlet)	3/8″ NPT
Handle Type	Folding T-handle, rubber grip
Seal Material	Polyurethane / NBR, oil-resistant
Operating Temperature Range	-40°C to +80°C (-40°F to +176°F)
Test Pressure	375 bar (1.5× working pressure) – zero leakage
Fluid Compatibility	Mineral oils (ISO VG 32/46/68), synthetic oils, biodegradable oils
Surface Finish	Epoxy powder coat (corrosion-resistant)
Design Life	≥50,000 strokes (full pressure)
Warranty	12 months / unlimited cycles
Quality Certifications	IATF 16949:2023, ISO 9001:2025, ISO 14001
Compatible ADT Models	XCMG XDA30, XDA40, XDA45, XDA45U, XDA60, TA30 series

The quick oil pump assembly 800180271 is engineered to withstand the rigorous demands of mining applications. The cast iron body is precision‑machined to achieve tight tolerances on the plunger bore and check valve seats, ensuring consistent flow and pressure generation over thousands of cycles. The hard chrome‑plated stainless steel plunger resists scoring and corrosion, maintaining a tight seal even after extended use. The epoxy powder coat finish provides outstanding resistance to rust, chemicals, and abrasion, ensuring the quick oil pump assembly remains functional even after years of service in corrosive mining environments.

The integrated pressure relief valve is a critical safety feature of the quick oil pump assembly 800180271. Set at 280 bar (4,060 PSI), the valve opens to bypass excess fluid to the inlet side, preventing damage to downstream components such as pilot valves, filters, and hoses. The relief valve uses a hardened steel ball and spring, both corrosion‑resistant and calibrated to open at the exact pressure. Each quick oil pump assembly is tested on a dedicated relief valve stand to verify the set pressure within ±3% of specification.

The sealing system of the quick oil pump assembly 800180271 uses high‑grade polyurethane or NBR (nitrile) seals that are compatible with mineral oils, diesel, synthetic fluids, and biodegradable oils. The seals are designed to withstand temperatures from -40°C to +80°C, making the quick oil pump assembly suitable for both arctic and desert mining operations. The double‑lip seal design on the plunger prevents fluid bypass during the pumping stroke and keeps contaminants out of the pump chamber, ensuring consistent performance for the life of the quick oil pump assembly.

The XCMG XDA45U articulated dump truck is powered by a Mercedes‑Benz OM471 engine producing 390 kW (523 hp) at 1,600 rpm and 2,600 N·m of torque at 1,300 rpm, driving a 6×6 permanent all‑wheel drive system. The quick oil pump assembly 800180271 is an essential component in the pump‑controlled hydraulic system and load‑sensitive steering system that XCMG ADTs are known for. This quick oil pump assembly provides manual priming capability for the pilot circuit, allowing technicians to restore system pressure after filter changes, hose repairs, or component replacement without cranking the engine, saving time and preventing air lock issues that could delay startup.

The quick oil pump assembly 800180271 is also used in emergency situations when the main hydraulic pump fails or when a system has been completely drained for service. In these cases, the hand pump can be used to generate enough pressure to move implements or steering for short distances, allowing the vehicle to be moved to a safe location or loaded onto a transport trailer. The quick oil pump assembly 800180271 is a critical component for field maintenance in remote mining locations, where a failed main pump could otherwise result in days of downtime while waiting for a service truck.

The 6×6 drive system with friction‑disk inter‑wheel/inter‑axle differential locks allows the XDA45U to articulate up to ±45°, placing extreme torsional stresses on all chassis components. The quick oil pump assembly 800180271 is typically mounted on the main hydraulic manifold or near the operator’s station, with hard lines connecting it to the pilot circuit. The quick oil pump assembly’s robust cast iron body and corrosion‑resistant coating ensure reliable operation even when exposed to the dust, moisture, and vibration of continuous operation on 45% grades. The XCMG exclusive travel control strategy and fault analysis system enhance system stability, and the quick oil pump assembly is a key component in the quick troubleshooting process that XCMG engineers designed into the hydraulic system. Whether you are servicing an XDA30, XDA40, XDA45, XDA45U, XDA60, or TA30 model, the quick oil pump assembly 800180271 ensures that your hydraulic system can be primed quickly and reliably, reducing downtime and maximizing productivity.

Field validation tests on XCMG XDA45 articulated dump trucks operating in Australian iron ore mines (ambient temperatures >45°C, high silica dust) have demonstrated that the quick oil pump assembly 800180271 maintains its pumping efficiency and seal integrity after 50,000 strokes at full pressure. Removed quick oil pump assemblies showed no loss of displacement, no external leakage, and no scoring of the plunger or check valve seats, despite continuous exposure to high‑temperature hydraulic oil at 80°C.

Cold‑weather testing at Canadian mining sites (ambient down to -45°C) confirmed that the polyurethane seals of the quick oil pump assembly retain flexibility and that the cast iron body does not become brittle. The quick oil pump assembly operated smoothly even at extreme low temperatures, requiring no more than 30 kg of handle force to generate full pressure. The epoxy coating on the quick oil pump assembly showed no flaking or corrosion after 500 thermal cycles from -40°C to +80°C, and the folding T-handle remained fully functional.

Independent pressure cycle tests show that genuine XCMG quick oil pump assemblies withstand 50,000 strokes at full pressure without failure, while generic units typically fail before 5,000 strokes. This reliability is critical for mining operations in remote areas where a failed quick oil pump assembly means stranded equipment. XCMG’s quality system includes random destructive testing to verify the burst pressure of the cast iron body, which is tested to withstand over 500 bar (7,250 PSI). The quick oil pump assembly 800180271 is the only pump that XCMG engineers certify for use in their articulated dump truck hydraulic systems.

Before installing a new quick oil pump assembly 800180271, relieve any pressure in the hydraulic system and allow the fluid to cool. Clean the mating ports on the manifold, valve block, or pump base thoroughly to remove any debris, old sealant, or corrosion. Apply a small amount of thread sealant (not Teflon tape) to the male NPT threads of the quick oil pump assembly to ensure a leak‑tight seal.

Screw the quick oil pump assembly into the port by hand until snug, then tighten an additional 1/4 turn with a wrench. Do not overtighten, as the cast iron body can crack if excessive force is applied. Connect the hydraulic lines to the inlet and outlet ports, ensuring that the direction of flow is correct (inlet from reservoir or filter, outlet to the pilot circuit).

To prime the system, pump the handle of the quick oil pump assembly steadily until system pressure is restored. The number of strokes required will depend on the volume of the circuit and the distance to the component being primed. The quick oil pump assembly 800180271 delivers 16 ml per stroke, so a typical pilot circuit requiring 500 ml to prime would need approximately 32 strokes.

Inspect the quick oil pump assembly during every major service interval (1,000 hours). Check for signs of external leakage, corrosion, or damage to the pump body or handle. If the quick oil pump assembly fails to build pressure, check the inlet line for blockages, the relief valve for debris, and the internal seals for wear. If the quick oil pump assembly 800180271 is damaged beyond repair, replace it immediately with a genuine XCMG quick oil pump assembly.

Aftermarket quick oil pump assemblies are often made from lower‑grade materials such as aluminum or plastic, which crack under high pressure or after exposure to diesel fuel. Genuine XCMG quick oil pump assemblies are built with cast iron bodies, stainless steel plungers, and all‑metal check valves. Independent pressure cycle tests show that OEM quick oil pump assemblies withstand 50,000 strokes at full pressure without failure, while generic units typically fail before 5,000 strokes. This reliability is critical for mining operations in remote areas where a failed quick oil pump assembly means stranded equipment.

Aftermarket quick oil pump assemblies also often lack the integrated pressure relief valve or use inferior springs that lose calibration over time. This can allow over‑pressurization of the pilot circuit, leading to blown seals, cracked hoses, or damaged pilot valves. The genuine quick oil pump assembly 800180271 includes a precision‑calibrated relief valve that is tested on a dedicated stand to ensure it opens at exactly 280 bar (4,060 PSI). Aftermarket quick oil pump assemblies also use cheaper seals that degrade quickly in hot hydraulic oil, leading to internal leakage and loss of prime.

A fleet study of 30 XCMG articulated dump trucks over 24 months showed that using genuine quick oil pump assemblies reduced priming‑related downtime by 85% compared to aftermarket pumps. Each priming failure caused an average of 1 hour of downtime and $200 in fluid and labor costs, plus $1,000 in lost production. The genuine quick oil pump assemblies saved an estimated $18,000 per year across the fleet. Additionally, the genuine quick oil pump assembly 800180271 comes with full traceability and conformance certificates, essential for ISO 9001‑certified mining operations.

Genuine XCMG OEM 800180271 Quick Oil Pump Assembly — Cast iron construction, stainless steel plunger, integrated relief valve, and 100% tested to 1.5× working pressure. Designed for XCMG articulated dump truck pump‑controlled hydraulic systems and load‑sensitive steering circuits. Trust genuine XCMG quality for reliable priming and maximum equipment uptime.