MacDon M155, Operator'S Manual

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OPERATION
d. Adjust tension on air conditioning (A/C) compressor belt. Refer to
Tensioning Air Conditioner (A/C)
Compressor Belt, page 367
.
e. Distribute A/C refrigerant by cycling A/C switch. Refer to
Air Conditioning Compressor Coolant Cycling,
page 159
.
f. Check the entire A/C system for leakage at the beginning of each season.
2. Perform annual maintenance. Refer to
5.5.11 Maintenance Schedule, page 425
.
Air Conditioning Compressor Coolant Cycling
IMPORTANT:
Perform the following steps whenever the machine is fi rst started after storage for more than one week:
1. Turn blower switch (A) to the fi rst position, turn
temperature control switch (D) to maximum heating,
and A/C control switch (B) to OFF.
2. Start engine, and operate at low idle until engine
is warm.
3. Click A/C switch (B) from OFF to ON for one second,
then back to OFF for 5 to 10 seconds. Repeat this step
ten times.
Figure 4.6: Climate Control
A - Blower Switch B - Air Conditioning Switch
C - Outside Air Switch D - Temperature Control
4.3.4 Daily Checks and Maintenance
Perform the following checks and recommended maintenance before operating the windrower every day:
1. Check the machine for leaks.
NOTE:
Use proper procedure when searching for pressurized fl uid leaks. Refer to
Hoses and Lines, page 411
.
2. Check for missing or broken parts.
3. Clean the windows and mirrors to ensure good visibility in all directions. Stand on the platform to access the
rear window. Hold onto the handholds on the cab front corners and stand on the header anti-slip strips to wash
the front window.
4. Clean all lights and re fl ective surfaces to maintain visibility to others.
5. Perform daily maintenance. Refer to
5.5.11 Maintenance Schedule, page 425
.
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Revision A