Fault Phenomenon: Teupen spider crane when traveling on a slope, the tracks slip and are weak, unable to climb.

Troubleshooting Process:
– Checked track tension: too loose.
– Checked travel motor pressure: pressure low.
– Checked travel gearbox: internal gears damaged.
– Adjusted track tension, replaced travel gearbox.

Root Cause: Internal damage to the travel gearbox resulted in insufficient output torque.

Required Parts: Travel gearbox assembly.