Mechanical Diagrams

Auxiliary Engine Coolant Heater, Coolant Circuit Layout

NOTE:
- The coolant system is underpressure when the engine is warm. If necessary, release coolant system pressure prior to repair work.
- The coolant circuit must be free of air for the auxiliary engine coolant heater to heat properly.







1. Heat exchanger for heater unit
2. Auxiliary engine coolant heater
3. Recirculation Pump V55
4. Fuel cooler
5. Generator
6. Cylinder head/cylinder block
7. Thermostat housing
8. Valve body
9. Radiator
10. Low temperature cooler
- for generator and fuel cooling

11. Fuel Cooler Pump V166
12. After-Run Coolant Pump V51
13. Check valve - Observe installed position
14. Engine coolant expansion tank