CBGj2100 is recorded as a gear pump for an XCMG loader hydraulic application. A pump that bolts to the machine may still be incorrect if rotation, shaft, port layout or operating specification differs. Confirm the complete interface and circuit requirement before ordering.
CBGj2100 Pump Matching Checklist
| Reference | CBGj2100 |
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| Type | Hydraulic gear pump |
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| Application | XCMG loader hydraulic circuit; confirm position |
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| Interfaces | Rotation direction, shaft or spline, mounting flange and pilot, suction and pressure ports |
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Provide photos of the old pump from the nameplate, shaft, flange and port sides. Mark suction and pressure connections before removal. Confirm rotation from verified markings or service data using the manufacturer's viewing convention.
Diagnose Low Flow and Noise
Slow lift, weak steering, heat or noise may be caused by low oil, wrong viscosity, suction restriction, aeration, damaged hoses, contaminated filters, relief-valve behavior, internal leakage or a control-valve issue. Measure pressure and flow at specified test points. A pressure reading alone does not fully describe pump delivery.
Inspect the removed pump and oil for metal particles. If the pump failed internally, clean the reservoir, lines and related valves before commissioning the replacement.
Physical Comparison
Confirm CBGj2100 on the part or documentation.
Compare shaft diameter, spline or key, engagement and shoulders.
Check bolt spacing, flange type, pilot diameter and clearance.
Verify suction and pressure port threads, seal type, size and orientation.
Confirm rotation and operating specification from verified data.
Identify whether fittings, seals, coupling and hardware are included.
This page does not state unsupported displacement, rated pressure, speed or rotation values.
Clean Installation and First Start
Cap opened hoses and keep the new pump sealed until installation. Clean the mounting surface, inspect coupling and alignment, fit compatible seals and avoid forcing shaft engagement. Follow the service procedure for priming; a dry start can damage a gear pump quickly. Start at low load and inspect oil supply, leakage, noise, temperature and stable function.
Safety note: Hydraulic systems store pressure and can inject oil through skin. Use qualified personnel for pressure and flow testing.
Related XCMG Loader Hydraulic Parts
Diagnosis may include the hydraulic control valve, the XGHL6-700x10 return filter and the pressure reducing valve YJ320-01000Z. These pages support troubleshooting; they do not prove compatibility or inclusion with CBGj2100.
Frequently Asked Questions
How do I confirm rotation?
Use verified pump markings or service documentation and the stated viewing direction.
Can I reuse old fittings?
Only after confirming thread, seal type, condition and cleanliness.
Does the listing confirm displacement and pressure?
No verified values are stated here. Confirm the exact configuration.
Why did the previous pump fail?
Check suction restriction, air entry, oil, contamination, misalignment and excess pressure.
Quotation checklist: send CBGj2100, model and serial, pump photos, rotation marking, shaft and flange dimensions, ports and symptoms.
