4 DISPLAY AND CONTROL ELEMENTS
4.56 MHL380 D
4.9.3 Air conditioning mode
You should switch the air conditioning system on
at least once a month for a short time to lubri-
cate the compressor.
â–º
The air conditioning only works when the
diesel engine is running. Start diesel en-
gine.
â–º
Switch on the air conditioning system with
the button toggle (86/91). The function dis-
play on the button toggle (86/91) must light
up.
â–º
Set the blower speed to position 1 at least
with the 4-stage switch (86/88). If the blow-
er is switched off, the air conditioning sys-
tem does not start. If the cooling output is
high, the blower speed should also be set
high.
â–º
The button toggles (86/92) on the digital
display (86/93) can be used to adjust the
displayed temperature as required. The
room temperature in the cab falls.
â–º
The ejectors (77/1-4) can be used to adjust
the air distribution as required.
For maximum cooling:
â–º
The temperature indicated on the digital
display (86/93) should be lowered with the
minus button toggle (86/91) until the value
"lo" is displayed.
â–º
Set the blower speed to position 4 with the
4-stage switch (86/88).
â–º
Close the outside air flap with the button
toggle (86/89). The function display on the
button toggle (86/89) must light up.
â–º
Keep the cab closed.
If the diesel engine is running and the air con-
ditioning system is set to high output, the re-
frigerant flows into the sight glass (87/1) with-
out bubbles. If bubbles appear in the sight
glass, get an authorized specialist to check
the system for leaks and fill.
Danger of injury due to refriger-
ant
• Maintenance work on the air con-
ditioning system must only be
carried out by trained specialists.
In an emergency: Administer first
aid, seek treatment from a doctor
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2
3
4
1
9
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90
92
93
91
89
88
MHL-NBXX-558
Fig. 86 Lever for air conditioning system
Fig. 87 Sight glass
Air
conditio
ning
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