Case 580SR Service Manual page 778

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18 SECTION 50 - CAB HEATING AND AIR CONDITIONING
OPERATION
IMPORTANT: when using the air conditioning, it is
essential that all the windows of the operator's com-
partment are completely closed.
NOTE: to ensure correct operation and full efficiency
of the air conditioning system, it must be used at
least once a week, even for a short time.
The air-conditioner filter is located on the left hand
side of the seat pod.
S
WARNING
The air filter is designed to remove dust from the air
but may not exclude chemical vapour. Refer to
chemical manufacturers directions regarding protec-
tion from dangerous chemicals.
If the machine has been parked in the sun, quicken
the cooling by operating the air-conditioning for 2-3
minutes at its coldest setting. Set maximum blower
speed with a window left partially open to force most
of the warm air from the cab.
With the air cooled sufficiently, close the window and
adjust the controls to the desired temperature. To
ensure proper operation of the system be sure the
cab filter is regularly serviced. Refer to filter mainte-
nance.
It is the normal function of the air-conditioner to ex-
tract water from the air. As such it is possible pools
of water will collect beneath the drain hose outlets
under the cab when the machine is stationary.