Case WX145 Operator's Manual page 164

During engine preheating, the display shows every
3 seconds and for 1 second long, the indication that
the preheating stage is still ongoing. The preheating
degree reached by the engine, is shown as a bar-
graph, placed horizontally.
During the preheating stage, the power level can be
set with arrows (3) and (4). Up to power level 5, this
setting becomes active also during the preheating
phase. By setting the power levels 6 and 7, they are
activated only after the engine has reached the
service temperature.
AFTER THE ENGINE START - PREHEATING
The oil contained in the hydraulic system activates
the cylinders and the different hydraulic motors.
Cold hydraulic oil is viscous. In such a case, some
machine functions as travel and rotation move-
ments, are performed more slowly than with hot oil.
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WARNING
It is absolutely forbidden to force the oil heating,
because this procedure can damage the machine
remarkably.
S
WARNING
With very low temperatures, the hydraulic system
can reduce the machine speed. For this reason we
recommend the outmost attention before the sys-
tem has reached the service temperature, to avoid
the hazard of injuries.
It is vital that oil inside of the machine hydraulic sys-
tem is brought to the right operating temperature
correctly. For this reason, to bring oil to service tem-
perature, you have to observe following conditions:
Start the engine and let it run idle and at low speed
for five minutes.
Let the machine perform a several number of move-
ments like lifting, extension/retraction, slewing and
travel, to allow the hot hydraulic oil to reach all cylin-
ders and the motor.
Carry out these movements until the hydraulic sys-
tem of the machine reaches the service tempera-
ture.
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OPERATING THE MACHINE
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