ZE485E‑10‑5180 — Built Mar 2021 | 2,317 hrs | Parked in Xi’an (西安) | Equipped with bucket

Brief summary

• Model/ID: ZE485E‑10‑5180
• Manufacture date: March 2021
• Hours: 2,317 (moderate — depends on duty cycle and maintenance)
• Location: Xi’an — consider local dust/abrasion and seasonal temperature effects
• Attachment: bucket present (check teeth, cutting edge, pins and coupler condition)

Key positives

• Comes with bucket assembly — enables fuller functional/load testing of hydraulic circuits and boom/arm under real conditions.
• Age is relatively recent (2021); if maintained, remaining useful life can be substantial.

Primary concerns to verify

• 2,300+ hours: inspect wear items (undercarriage, pins/bushings, final drives, boom/arm bushes).
• Parked condition: how long it’s been idle, last run date, storage conditions (outdoors/covered).
• Hydraulic system wear: pump health, cavitation, hose/connector condition.
• Bucket wear: cutting edge, teeth, adapters, weld repairs or cracks around mounting.
• Service history completeness and any major repairs (engine overhaul, hydraulic pump replacement, undercarriage overhaul).

Essential pre‑purchase checklist

1. Documentation

   • VIN/serial numbers, full service and repair records, hour‑meter continuity, accident or flood history, title/liens.

2. Immediate seller questions

   • Last run date and reason for parking/selling.
   • Recent major services/repairs and parts replaced.
   • Confirmation that bucket pins, coupler and hoses are original/included.

3. Photos & videos to request

   • Photos: entire machine (4 sides), undercarriage (sprockets, shoes, rollers), boom/arm welds and pins, bucket closeups (teeth, edge, adapters), engine bay, hydraulic tank sight glass, hour meter, swing bearing area.
   • Videos: cold start, idle, hydraulic function demo (boom/arm/bucket/swing/travel) and a short load test using the bucket (digging/lifting) to show power, response and any smoke/noise.

4. On‑site functional tests

   • Cold and hot start: observe smoke (color), idling stability, unusual noises.
   • Run all hydraulic functions under load for several minutes: watch for sluggishness, cavitation/noisy pump, oil temperature rise and leakage.
   • Check for play in pins/bushings and smoothness of swing and travel.
   • Inspect bucket mounting for wear, vertical/horizontal play and any welds/cracks.

5. Fluid & lab tests (strongly recommended)

   • Send engine oil, hydraulic oil and final drive oil for lab analysis (wear metals, water, fuel dilution).

6. Structural & mechanical checks

   • Inspect boom/arm for cracks or weld repairs at high‑stress zones.
   • Measure undercarriage wear (shoe thickness, chain elongation, sprocket profile, roller condition).
   • Check swing bearing for axial/radial play and grease leakage.
   • Test travel motors and final drives for noise/leaks.

Red flags (require walk‑away or major discount)

• Excessive smoke on start or under load, knocking from engine or pumps.
• Hydraulic cavitation, frequent air/foam in hydraulic oil, or lab results showing high metal wear/water.
• Severe pin/bushing wear (> acceptable play), cracked boom/arm or welded repairs at critical joints.
• Missing or non‑working bucket pins/coupler preventing secure attachment.
• No service records or seller unwilling to allow live run/load demo.

Recommended next steps

• Request immediately: full service records, last run date, photos/videos listed above, and reason for sale.
• Arrange independent on‑site inspection including live bucket load test, hydraulic pressure/flow checks and oil sampling.
• If inspection OK, obtain quotes for routine replacement items (bucket teeth/edge, bushings, hoses) and factor into price negotiation.