Fault Phenomenon: Haulotte HA18RTJ articulating boom aerial work platform while running, the generator and water pump stop working, water temperature rises rapidly.

Troubleshooting Process:
– Checked belt: belt broken.
– Checked tensioner pulley: tensioner pulley seized.
– Checked pulley grooves: grooves worn.
– Checked installation: belt too tight.

Root Cause: The engine accessory belt aged and broke, or the tensioner pulley seized, causing the belt to break.

Required Parts: Engine belt and tensioner pulley.