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MAINTENANCE INSTRUCTIONS
NM13N074 NM13N075 E740
DRAINING THE CONDENSATE FROM
AIR COLLECTOR
Air collector is placed on the right side of
the tractor under the cab.
Draining the condensate from air collector
to be done by deviation of venting valve
by pulling a ring.
Valve is located on the bottom part of air
collector.
AIR SYSTEM TIGHTNESS
INSPECTION
fill air collector to the maximum pres-
sure (600 20 kPa)
there must not be drop in pressure for
more than 10kPa in 10 minutes with
engine at standstill
Before driving with a trailer or a
semi-trailer, do the inspection
daily!
With pressure drop in brake sys-
tem under 450
30 kPa, a warn-
ing control lights up on the dash-
board!
AIR CONDITION MAINTENANCE
The main element of air condition
system maintenance is cleaning
air condition condenser (is placed
in front of engine radiator).
Clogged air condition condenser
decreases not only the efficiency
of cooling system but also the ef-
ficiency of engine cooling.
Open the bonnet, demount the nut (1)
and protrude the radiator to the side and
blow with compressed air or wash with
pressed water (against the direction of
tractor drive).
Slide the radiator back in and attach
properly. Mind proper conducting of hos-
es to oil radiator.
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