YUANJIAN MACHINERY / TECHNICAL LIBRARY
CAT 320GC Inspection Photos & Working Video Checklist
Connect CAT 320GC machine identity to inspection photos and working videos.
An inspection record should follow one identifiable unit
When reviewing a used CAT 320GC from a China used excavator supplier, ask for a connected set of identity photos, detail views and working videos. A polished overview photograph is not enough to establish displayed hours, component identity or operating behavior. Link each item to the selected machine and record the inspection date.
The photo set to request
| Group | Useful views | What remains unproven |
|---|---|---|
| Identity and monitor | Full machine plate, engine plate, monitor hours and any visible warning. | Displayed hours are a reading, not independently verified lifetime operating hours. |
| Engine and main pump | Safe, stationary detail photographs of component labels, accessible connections and visible condition. | Cleanliness and labels do not prove internal condition or measured performance. |
| Undercarriage | Both sides, track links and shoes, rollers, idlers, sprockets and visible damage. Request measurements where needed. | Photos alone do not justify a precise remaining-life percentage. |
| Structure and attachments | Boom, stick, bucket, pins and accessible structural areas, including any disclosed repairs. | Visible condition is not a crack test or proof that hidden repairs do not exist. |
Working video and inspection limits
Ask for machine identity in the record, startup information, ordinary implement movement, swing and travel where safe, and the monitor during operation. A recording can support a discussion of behavior; it does not replace measured hydraulic tests, a structural assessment or an independent inspection when required.
Keep preparation, inspection and dispatch records distinct
Workshop footage shows work being carried out. Inspection evidence records the selected unit at a particular time. Loading photos and shipping documents record dispatch. Connect the records, but do not treat one as proof of every other stage or of the final condition on arrival.
Connect the reference to the actual machine
A manual describes a configuration; inspection photos and working videos show the unit being offered. Review both before deciding which machine to buy or which procedure to use.
Manufacturer information and document control
For current manufacturer service information, use the official Cat service channel and match the publication to the equipment serial number. This website does not redistribute the private collection as an unrestricted OEM manual archive.
Cat SIS2GO: official service informationYUANJIAN MACHINERY INTERNATIONAL TRADING LIMITED
Technical support beyond the machine sale
A direct used excavator supplier in China with our own refurbishment team, real-machine inspection photos and working videos. Customers who buy a used excavator from YUANJIAN receive available, applicable resources and free machine guidance for 5 years after purchase.
Resource access, safety and service terms
Public pages contain original YUANJIAN explanations and selected catalogue metadata. Complete documents are supplied only where available, applicable and permitted. Manufacturer rights remain with their owners; YUANJIAN is not a Caterpillar-authorized service center. These indexed collections can combine engine and machine chapters, languages and revisions. Confirm the complete machine serial number, engine identity and the current procedure before repair.
Five-year guidance covers operation, maintenance questions and troubleshooting communication. It is not a five-year machine warranty and does not include free parts, consumables, freight, on-site labor or repairs. Qualified technicians must perform pressure tests, adjustments, lifting and disassembly using the serial-specific service instructions.