MacDon M155 Operators Manual - Manual (Page 329)

MAINTENANCE AND SERVICING
Changing Coolant
Coolant should be drained and the system flushed and filled with new coolant every 2000 hours or 2 years.
Refer to the following procedures:
• Draining Coolant, page 313
• Adding Coolant, page 315
Draining Coolant
WARNING
To avoid personal injury from hot coolant, do NOT turn radiator cap until engine cools.
Engine exhaust may be hot.
1. Stop the engine, remove the key. Let the engine cool.
2. Open the hood. Refer to 5.4.3 Opening Hood (Highest
Position), page 267 .
3. Open the platform. Refer to 5.5.1 Opening Platforms
(Standard Position), page 269 .
4. Turn the radiator cap (A) to the first notch to relieve
pressure before removing cap completely.
Figure 5.99: Engine Cooling System
5. Remove the radiator cap and open radiator drain valve
(A) at the bottom of the engine side of the radiator
lower tank. (Frame has been removed from illustration
for clarity.)
IMPORTANT:
Place a drain pan (about 8 U.S. gallons [30 liters])
under the engine and radiator and use a deflector
or hose to prevent coolant running onto frame.
Figure 5.100: Engine Cooling System
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Revision A