Radiator Maintenance

There are two radiators in the Monarch Tractor, both of which are on the top of the front tractor bed. Screens on the top of the Monarch Traffic radiator to protect the fins of the radiators.

• The right-side radiator is a power electronics cooler (PEC) with four fans. When the tractor is charging, these fans are used to cool the battery. The fans also run when exportable power is in use.
• The left side radiator is a hydraulic oil cooler (HOC) with six fans. Hydraulic fluid is sent through the HOC to cool down the temperature of the fluid before its returned to the hydraulic fluid settling tank. These fans run when the tractor is operating.

Cleaning Radiator Screens

The screens on the radiator protect against dirt and debris clogging the radiator. Cleaning the radiator screens is an important daily task. If the tractor is dusty or if there are long pieces of debris falling into the radiator screens, it’s important to remove them as soon as it’s safe to do so.

To clean radiator screens:

1. Power off the tractor.
2. Allow the tractor to cool down.
3. Do any of the following:
   • Use a clean cloth to wipe each screen.
   • Use compressed air to blow dirt and debris off the screen. Keep the air under 30psi to protect the radiator fins below the screen.
   • Rinse the radiator screens with hose water.
   • Remove the screens to clean with soap and water them if they are extremely dirty.