Ventilation And Heating - Komatsu PC14R-3 Operation & Maintence Manual

3.5.2 VENTILATION AND HEATING

The ventilation and heating of the cab serve to reduce the
operator's stress both in summer and in winter; these functions
also serve to eliminate condensate from the front windshield, thus
ensuring visibility during both work and travel. Ventilation and air
exchange are obtained with a three-speed fan controlled by the
switch (2).
The air intake is protected by a filter placed on the right side of the
cab, and air is distributed by a series of swinging vents with
adjustable output (1) whether for the internal air flow or for
demisting and defogging the glasses.
Together with the fan, there is a radiator that transfers heat to the
air sent into the cab; it is used during the cold season and
receives the hot water necessary for exchange heat directly from
the engine cooling system.
The water flow is limited or interrupted by a cock controlled by the
knob (3). Turning the handwheel clockwise to increase the hot
water flow intensity.
CAB VENTILATION
Ventilation is turned on by turning the switch (2) located on the
right side instrument panel. Turn the switch clockwise to increase
ventilation.
CAB HEATING
To use the heating system, open the valve (4) on the water
collector by turning it anticlockwise.
To reach the valve remove the screws (5) and remove the cover
(6).
NOTE
When the heating system is going to remain unused for a long
q
period, close the valve (4) turning it clockwise.
WEAM009300
USING THE MACHINE IN THE COLD SEASON
1
2
3
6
1
RKA23290
RKA23280
4
RKAB9510
5
RKAB9190
157