A basically round or spherical object designed to be grasped by the fingers to be pulled or pushed or turned to transmit motion to other devices.

• The knob is used to hold the air filter cover in the cab.
• It is plastic knob, which helps in aligning the air filter in the cab.
• It plays a crucial role in enabling operators to interact with and manage equipment functions.

The plastic knob is used to hold and align the air filter inside the cab.