DISPLAY AND CONTROL ELEMENTS 4
MHL380 D 4.71
4.11.7 Cab protection ventilation (option-
al)
The loading machine must be fitted with a cab
ventilation system for use in places where the
ambient air is contaminated.
The outside air is cleaned by the filter system
(fig. 108). An additional ambient air filter de-
vice (109/1) cleans the cab air such that it
contains no dust particles which enter the cab
on shoes, for example. The heating and air
conditioning system controls the temperature
of the cab air.
The cab is modified such that it achieves the
required tightness (for example, one-piece
side windows, special sealing elements, out-
side air flap removed).
If the cab ventilation system is switched on
and the internal pressure is above 100 Pa, the
green signal lamp (110/2) lights up to signal
proper operation to those in the surrounding
area.
Danger to life due to suffocation
• Only use the filter specified by the
manufacturer for the site of oper-
ation.
• When changing the site of opera-
tion, check the suitability of the fil-
ter system with the manufacturer.
• Retrofitting work may only be per-
formed in consultation with the
manufacturer, as various conver-
sions are required on the cab.
• Depending on the site of opera-
tion, adapted personal safety
gear (such as an escape filter de-
vice) must be provided.
• Inform those in the surrounding
area of the purpose of the green
signal lamp and measures to be
taken in an emergency.
In an emergency: Administer first
aid, seek treatment from a doctor
MHL-NBXX-329
1
MHL-NBXX-340
Fig. 108 Filter system
Fig. 109 Circulating air filter
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