Air-Conditioning Maintenance; Draining Condensate From The Air Reservoir - Zetor FORTERRA HSX 120 Operator's Manual

Air-conditioning maintenance

The most important task of the A/C system
maintenance is to clean the A/C condenser (installed
in front of the engine cooler). A clogged A/C
condenser reduces not only the A/C system cooling
efficiency, but also the engine cooling efficiency.
Lift the hood, release and slide the radiator to the side and
blow out with compressed air or flush with pressurized
water (against the driving direction of the tractor). Then
insert the radiator back and fasten properly. Make sure
that the hoses to the oil radiator are routed correctly.
Take extra care when handling the air conditioning condenser to avoid damaging the electrical
wiring to the air conditioning pressure sensor.
Water or air under high pressure can deform the cooling fins and reduce the efficiency of the
radiator. Therefore, keep a reasonable distance when cleaning with water or air under high pressure.
When the air-conditioning functions properly, water
condenses in the roof space of the cab and the
condensate is drained through hoses in the cab pillars and
runs out at the bottom side of the pillar. This is why you
must make sure that the condensate drain hoses will not
be blocked.

Draining condensate from the air reservoir

Draining is performed by deflecting or compressing the
protruding part of the valve. The air reservoirs are located
in front of the rear axle. The tractors are equipped with
one air reservoir installed on the left side of the tractor as
standard or * two air reservoirs positioned on the right and
left side of the tractor (if air-pressure brakes are in-
stalled).
MAINTENANCE INSTRUCTIONS
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