DRESSTA 515C, Operator'S Manual

Page: 132 / 205

MAINTENANCE
SECTION 5
Page 25
DRESSTA OM515C520C99/1E
COOLING SYSTEM
WARNING! Never add coolant when the engine is hot. This may result in damage
to the engine. Allow the engine to cool down below 50 [
o
C] prior to replenishing
the coolant in the radiator. Failure to meet this recommendation may result in
personal injury.
Fig. 5.10. Coolant Level Sight Gauge
5.8.5. DRAINING THE SYSTEM
WARNING! To drain the coolant allow the coolant to cool down below 50 [
°°
C].
Failure to meet this recommendation may result in personal injury.
1. Remove the radiator cap (Fig. 5.9 and 5.9A) as outlined above.
2. Remove the crankcase coolant drain plug on the engine, refer to ENGINE OPERATION AND
MAINTENANCE MANUAL.
3. Open the radiator drain valve on the engine (Fig. 5.11).
4. Open the cab heater water valve on the engine block (Fig. 5.12).
5. Allow the system to drain completely into a suitable container. Make sure all the valves and
holes are not plugged.
6. Close the radiator drain valve and install the crankcase and oil cooler drain plugs on the engine.
7. Close the cab heater water valve on the engine.
8. Check all the hoses and clamps for damage and the radiator for leaks and damage. If the
system is contaminated, it must be cleaned as described below.