Working Pressure Of Air Brakes - Zetor PROXIMA PLUS 90 2012 Operator's Manual

WORKING PRESSURE OF AIR
BRAKES
In case of a single hose (1) and double-
hose (2) designs, air pressure on the
double-hose coupling head (red capsule)
is 740 ± 20 kPa and on the single-hose
coupling head is 600 ± 20 kPa max. (at-
the moment when pressure regulator re-
lieves the compressor by blowing off).
MAINTENANCE INSTRUCTIONS
G733
MAINTENANCE OF THE AIR-
CONDITIONING (A/C) SYSTEM
Cleaning of the A/C condenser is
the most important part of main-
tenance of this equipment (it is
installed in front of the engine ra-
diator).
Clogged A/C condenser reduces
effectiveness of cooling of the
A/C system as well as cooling of
the engine.
Open the bonnet, screw off the nut (1)
and slide the radiator to the side and
purge it using compressed air or flush it
pressurised water (against direction of
drive).
Then slide the radiator back to its posi-
tion and fix it properly. Pay attention to
171
E740
correct arrangement of hoses to the oil
cooler.
With correct function of the A/C system,
water condensates in the roof space of
the cabin. Condensate is drained by
hoses in columns of the cabin and flows
out in lower ends of the columns. There-
fore pay attention to the hoses that
should not be clogged to drain conden-
sate.
E741