ZE500G‑5018 — long‑reach arm, Wuhu, manufactured 2023, 4,393 hours, bucket fitted.

Quick overview

• Model: Zoomlion ZE500G
• Unit no.: ZE500G‑5018
• Manufacture: 2023
• Hours: 4,393 h (moderate–high)
• Attachment: Bucket fitted (please confirm bucket type, capacity, teeth/adapter condition)
• Location: Wuhu, Anhui

Main concerns for a long‑reach at ~4.4k h

• Structural fatigue: long‑reach arms change loading — inspect boom/arm/pin bores for cracks, elongation or weld repairs.
• Pivot wear: pins & bushings on the long arm and boom tend to show accelerated wear.
• Undercarriage wear: at this hour range expect moderate wear on shoes, pins/bushings, rollers and sprockets.
• Hydraulics: pump load, hose wear, cylinder rod scoring and seal leaks (long reach may have higher hydraulic demands).
• Bucket wear: cutting edge, teeth/adapters and bucket floor/side wear.

Recommended inspection & test checklist (concise)

1. Documentation
   • Verify VIN/unit number and obtain full maintenance/service records and any modification paperwork for the long arm.
2. Visual inspection
   • Boom, long arm and stick: check for cracks, welds, paint differences and pin bore ovality.
   • Bucket: teeth, adapter condition, cutting edge, welds and pins.
   • Undercarriage: shoes, pins/bushings, rollers/idlers, sprockets.
3. Functional tests (record video)
   • Cold start video, idle, exhaust smoke.
   • Full operational test: boom/arm/swing/travel and digging demo at long reach and close range — note response, noises, cavitation and cycle speed.
4. Diagnostics & fluids
   • Scan ECM for fault codes.
   • Inspect/check engine oil, hydraulic oil, final drive oil; consider oil sampling for lab analysis if high value purchase.
5. Structural & pivot checks
   • Pry test at all pivots to measure play; quantify pin/bushing wear % if possible.
   • Inspect swing bearing for play and bolt torque.
6. Hydraulic & cylinder checks
   • Inspect cylinder rods for scoring/pitting and seal seepage. Pressure test system under load if available.
   • Check hoses/fittings for abrasion/repairs and quick‑coupler function if present.
7. Undercarriage measurement
   • Measure pin & bushing wear %, shoe thickness and remaining life estimate.
8. Safety & operator checks
   • Cab controls, monitors, HVAC, ROPS/seat belts, lights and alarms.

Likely wear/repair items to budget for

• Undercarriage components (pins/bushings, rollers, sprockets) — moderate replacement may be required soon.
• Bucket teeth and cutting edge.
• Pivot pins & bushings on long‑reach linkage.
• Hydraulic hoses and possible cylinder seal service.
• Routine consumables: filters, fluids, belts, greases.