Checking Engine Coolant Strength; Testing The Parking Brake - MacDon M2170NT Operator's Manual

6.14.4 Checking Engine Coolant Strength

Check the antifreeze in the pressurized coolant tank with a tester every year, preferably before off-season storage.
Antifreeze is essential in any climate. It broadens the operating temperature range by lowering the coolant freezing point
and by raising its boiling point. Antifreeze also contains rust inhibitors and other additives to prolong engine life.
DANGER
To prevent bodily injury or death from the unexpected startup of the machine, always stop the engine and remove the
key from the ignition before leaving the operator's seat for any reason.
CAUTION
To avoid personal injury from hot coolant, do NOT attempt to open the pressurized coolant tank cap until the
engine cools.
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 288.

6.14.5 Testing the Parking Brake

A properly functioning parking brake system is important for ensuring the safe operation of the windrower.
DANGER
To prevent injury or death from the unexpected start-up of the machine, always stop the engine and remove the key
from the ignition before leaving the operator's seat for any reason.
262171
MAINTENANCE AND SERVICING
6.3.1 Opening Hood, page
Figure 6.166: Coolant Tank
6.3.2 Closing
387
287.
A
Revision A