Excavators are one of the main loading equipment used in overburden mining activities. The effectiveness of excavator operations is influenced by the level of Physical Availability (PA), with a minimum standard of 90% according to KEPMEN ESDM No. 1827 K/30/MEM/2018. However, in practice, this standard is often not achieved. This study was conducted at Pit LS, PT Tata Bara Utama, in February 202…