Ammann AP 240, Operating Manual

Page: 87 / 170

81 AP 240
OPErATION MANUAL
2.9.4. Machine work under high temperatures
and humidity
Engine power lowers with growing air temperature and humid-
ity.
Every 10 °C of temperature increase means power drop by •
up to 4 % (at constant humidity),
Every 10 % of increased relative humidity means power drop
•
by up to 2 % (at constant temperature).
Note
In the environment where hydraulic oil temperature moves •
constantly round 90 °C (194 °F), we recommend to have hyd-
raulic oil replaced by the oil with HV 100 kinematic viscosi-
ty.
For planetary gearbox with hydraulic torque converter wi-
•
thin the environment characterized as TROPICAL, we recom-
mend to use oil of SAE 30 viscosity value that corresponds to
the performance classification of Caterpillar TO-4.
2.9.5. Machine work in high altitudes
With altitude growing the atmospheric pressure and speci- •
fic gravity of intake air decrease, and in connection therewi-
th the engine performance lowers.
If engine smokes black in the altitudes of over 1500 m, ple-
•
ase contact service department of engine manufacturer
(Engine Operation and Maintenance Manual) and this ma-
nufacturer will adjust the injection pump accordingly to suit
such conditions.
2.9.6. Work of the machine in the dusty
environment
When working in a very dusty environment, please cut short •
the intervals for replacement of suction filter elements, cut
short the interval for cleaning the coolers, for replacement
of cabin’s dust filter, refer to Machine Maintenance Table.
The engine power is affected by the
environment in which the machine is
working.
The machine may be used up to a maxi-
mum altitude of 3,658 m (12,000 ft).