Komatsu Utility 76243, Operation & Maintenance Manual

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OPERATION
EXPLANATION OF COMPONENTS
3-67
HEATER, HANDLING 3
METHOD OF OPERATION 3
TO HEAT QUICKLY
If the switch is operated as follows, the cab can be heated
quickly.
q
Set fan switch (1) to H1, humidity control switch (2) to All
red, and RECIRC/FRESH selector switch (3) to RECIRC.
q
Set blower switch (2) to position 3 (HIGH).
NOTICE
If the heating is run continuously for a long time using
only recirculated internal air, the air in the cab will become
dirty. After the cab warms up, always turn RECIRC/FRESH
selector switch (3) to the FRESH position. In this position,
the inside of the cab is pressurized, and this prevents the
entry of dust.
NORMAL USE
Set each switch to the desired position.
CLEANING AIR FILTER 3
If the RECIRC or FRESH air filters are clogged, the heating capacity will drop.
Clean the air filter once a week with compressed air.
For details of the method of cleaning, see “WHEN REQUIRED (4-21)“.
Condition of use
Switchs
Fan switch
Humidity control
switch
RECIRC/
FRESH selector
switch
Rapid heating HI All red RECIRC
Ventilation or pressurization HI - LO All blue FRESH