Why is the quality of TBM's jack truss pegging important?
Social Vision; Supplier of specialized jack-truss parts
The difference between pegging, sealing and O-rings of the TBM truss jack
When should the pegging jack truss be replaced?
- Observation of oil around the jack
- Appreciable reduction in hydraulic pressure
- Irregular operation or slow movement of the jack
- Wearing or tearing of the seal
- Creation of lines and corrosion at the place of movement of the seal
- Decrease in system efficiency after long working hours
- Frequent need to add hydraulic oil



