Komatsu PC20R-8, Руководство по эксплуатации и техническому обслуживанию

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GUARDS AND DRIVER’S SEAT
3.5.5 VENTILATION AND HEATING
The ventilation and heating of the cab serve to reduce the oper-
ator’s stress either in the summer and in the winter; these func-
tions also serve to eliminate the condensate from the front
window, thus ensuring visibility during both work and travel.
Ventilation and air change are achieved by means of a 2-speed
fan positioned inside the cab, under the seat support.
Air distribution is achieved by means of two fixed outlets (1) with
adjustable capacity for the inner flow, while the flow that has the
function to defrost and defog the front window is achieved by
means of a fixed outlet (2) with adjustable capacity.
A radiator having the function to heat the air conveyed into the
cab is installed beside the fan; it is used in the cold season and
receives the hot water necessary for the heat exchange directly
from the engine cooling circuit.
The water supply flow is divided or excluded by means of a tap
(3) positioned inside the engine compartment.
RYAA0020
1
1
RWA10200
2
RWAA0920
3