Direct answer
For an SD22 undercarriage inquiry, identify the exact machine variant and record the worn position on each side. Separate visible condition from measured wear. A qualified inspection using the correct measurement method and limits is needed before deciding the replacement scope; a photograph alone does not establish a wear percentage.
Name the assembly and position consistently
Record the complete model designation, serial and installed track configuration. Shantui’s SD22 product page identifies the model and published configuration context, but it is not a wear-limit chart for every machine. Use a left/right convention and state whether it is viewed from the operator’s position. Identify the component rather than writing only “track parts needed.”
What to record before a service or parts decision
| Record | What to include and why |
|---|---|
| Configuration | Full SD22 variant, serial, track arrangement and applicable parts illustration. |
| Location | Left/right side and specific shoe, link, roller, idler or sprocket position as applicable. |
| Visible record | Safe overall and close photographs of the reported wear or damage, with date and hours. |
| Measured record | Component, measurement location, method, units and applicable new/worn limit supplied by the inspection team. |
| Ordering scope | Individual item or assembly, exact number, quantity and any related parts supported by the inspection. |
What the observations do—and do not—establish
Uneven appearance can help identify where an inspection is needed, but it does not quantify wear or establish that only one component needs attention. Keep the operating environment and maintenance history with the inspection report. If measurements are supplied, ask which chart and configuration they use before comparing them with a different machine’s figures.
Turn the record into a clear service handoff
Prepare one inquiry line for each defined component or assembly. Keep track-chain components separate from bucket linkage pins, even though both may be described informally as pins and bushes. Ask the service team to identify the supported repair scope and remaining findings rather than ordering every visible worn item independently. Preserve the report for comparison at the next inspection.
Safe limits for this guide
Do not release a track tensioner, loosen its grease fittings, lift the machine or enter beneath unsupported equipment based on this guide. Track tensioning and wear measurement require the applicable procedures and suitable support.
Machine and parts context
This is a general service-planning guide. The linked machine pages organize identification information; they do not make the workflow a model-specific repair procedure.
Frequently asked questions
Can a photograph give a reliable wear percentage?
Not by itself. Measurement method and configuration-specific limits are needed.
Is SD22 alone enough to order a track assembly?
No. Preserve the full variant, serial and installed configuration.
Are bucket pins undercarriage pins?
No. Identify their separate assembly and position before requesting parts.
Sources and scope
- Shantui SD22 product information — Model and configuration context only; not a wear chart or a service procedure.
The observation checklist is Danch Machinery editorial guidance. No customer case, measured result or technician sign-off is claimed. Published or updated 14 September 2026. Obtain the current documentation for the exact machine before any technical procedure.
Request a parts identification check
Send the complete model and serial, component position, exact number or clearly marked uncertainty, quantity and available service findings. Danch Machinery supplies genuine parts; a quotation does not replace a technical diagnosis.
About this guide
Published by Danch Machinery as general parts-identification and service-planning information. It is not a signed technical inspection or a machine-specific repair approval. Refer to the sources and scope stated in the article; confirm service procedures and fitment with the current manufacturer documentation for the exact machine.
Machine configurations and service requirements can differ by model, serial number and market. Confirm procedures and fitment with the current manufacturer documentation for your exact machine.
