Fault Phenomenon: Hongda HBT100 delivery line is normal when cold. During high-pressure pumping (operating temperature), the delivery line bursts, concrete sprays, and the machine stops.

Troubleshooting Process:
– Checked line wall thickness: within allowable range.
– Checked pipe clamp connections: clamps tightened normally.
– Checked system pressure: pressure not exceeding limit.
– Measured localized temperature of the delivery line at operating temperature: found localized overheating.

Root Cause: Localized severe wear on the delivery line causes insufficient strength under thermal expansion, leading to bursting.

Required Parts: High-pressure delivery line and pipe clamps.