MacDon M1170NT5 Operator's Manual page 355

1. Shut down the engine, and remove the key from the ignition.
2. Open the hood. For instructions, refer to
IMPORTANT:
If antifreeze strength is not adequate, do NOT drain cooling system to protect against freezing. The system may not
drain completely, and damage from freezing could still result.
3. Remove pressurized coolant tank cap (A).
IMPORTANT:
Turn cap (A) counterclockwise to the first notch to relieve
pressure before removing the cap completely.
4. Check the coolant in the pressurized coolant tank using an
antifreeze tester. The tester should indicate protection to
temperatures of -34°C (-30°F).
5. Inspect the pressurized coolant tank cap as follows before
reinstalling it:
a. Check the gasket for cracks or deterioration, and
replace the cap if necessary.
b. Check that the spring in the cap moves freely. Replace
the cap if the spring is stuck.
6. Install pressurized coolant tank cap (A).
7. Close the hood. For instructions, refer to
Hood, page 240.
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MAINTENANCE AND SERVICING
5.3.1 Opening Hood, page
Figure 5.165: Coolant Tank
5.3.2 Closing
335
239.
A
Revision A