Komatsu WA100M-7, Operation And Maintenance Manual

Page: 117 / 304

Operation 3.2 Descriptions of the individual elements
WA80M-7, WA100M-7 – VENAM03001
3-47
3.2.13 Setting the heating and ventilation system
Adjusting the ventilation system
When the ventilation system is on, air is blown into the cab. If the
cab door is closed, this results in a slight overpressure. This pre-
vents dust from entering the cab.
The air is distributed by means of the air outlet nozzles (a).
 You can open and close all air outlet nozzles (a) individually.
 The airflow may be directed with the diffuser discs.
 The upper, round air outlet nozzles can be directed at the
windscreen and at the side windows.
Adjusting the heating system
NOTICE
The heating capacity depends on the coolant temperature of the
engine. Full heating capacity is only achieved when the engine
has warmed up.
To achieve the maximum heating effect inside the cabin, open all
air outlet nozzles (a), set rotary switch 2 to maximum heating
power, and set the fan to its highest speed with rotary switch 1.
To achieve a comfortable temperature, open all air outlet nozzles
(a), set rotary switch 2 to a comfortable temperature, and set the
fan to a low airflow rate.
To cool down the cab, open all air outlet nozzles. Then set rotary
switch 2 to 'cold', and set the fan to the highest speed.
G0010035
a a
a
a
a
a
b
a = Air outlet nozzles
b = Air intake nozzles
1
2
1 Rotary fan switch
2 Rotary temperature switch