![background image](http://html.mh-extra.com/html/macdon/m155/m155_operators-manual_685734073.webp)
OPERATOR’S STATION
3.10.3
Climate Controls
A – BLOWER Switch
controls the blower speed.
• OFF / LOW / MEDIUM / HIGH
B – Air Conditioning (A/C) Switch
controls A/C system.
• OFF: A/C does not operate.
• ON: A/C operates with blower switch ON.
C – Outside Air witch
controls the air source.
• FRESH AIR: Starts booster fan and
fi
ltered outside air
is drawn into cab.
• RECIRCULATE: Stops booster fan and cab air
is recirculated.
D – TEMPERATURE Control Dial
controls cab temperature.
• Turning the dial clockwise: Increases temperature.
• Turning
the
dial
counterclockwise:
Decreases
temperature.
Figure 3.34: Climate Controls
IMPORTANT:
To distribute the refrigerant oil throughout the A/C
system, perform the following steps when starting the
windrower after more than one week of storage:
1. Ensure heater shut-off valve at engine is OPEN. Refer
to
3.10.1 Heater Shut-Off, page 56
.
2. Turn blower switch to the
fi
rst position,
turn
temperature control switch to MAXIMUM heating, and
A/C control to OFF.
3. Start engine and operate at low idle until engine
is warm.
4. Click A/C switch from OFF to ON for 1 second, then
back to OFF for 5 to 10 seconds. Repeat this step
ten times.
147649
57
Revision A
Summary of Contents for M155
Page 3: ...Declaration of Conformity Figure 1 Declaration of Conformity Page 1 of 2 147649 i Revision A ...
Page 4: ...Figure 2 Declaration of Conformity Page 2 of 2 147649 ii Revision A ...
Page 30: ...SAFETY Figure 1 21 Safety Signs Left Cab forward Side 147649 14 Revision A ...
Page 32: ...SAFETY Figure 1 23 Safety Signs Right Cab forward Side 147649 16 Revision A ...
Page 44: ......
Page 54: ......
Page 320: ......
Page 414: ...MAINTENANCE AND SERVICING Fuse Box Decal Figure 5 178 Fuse Decal 147649 398 Revision A ...
Page 468: ......
Page 509: ......