Timely hay equipment maintenance is key to preventing dangerous fires. “The roller bearings inside the baler can easily become damaged due to wear and extended use.” “By locking the chamber door open, you prevent the possibility of the chamber door closing on you if the hydraulics of the chamber door fail.” “Using an infrared heat thermometer is a great tool to help monitor the temperature of your baler’s roller bearings,” Johnson said. “Take the time during a stretch break while baling to use the thermometer to check the temperature of your baler’s roller bearings.