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OPERATION
3.2. If the outside ambient temperature is below –40°C, warm
up the entire machine, using any safe means of heat genera-
tion such as hot air blower in connection with air-borne para-
chute, and/or any other appropriate means, before start-up,
especially when the machine has been shutdown for a long
period, moreover when the preheating systems were not
energized during the standstill period.
4. When the hydraulic oil and the engine coolant have been
warmed-up to the minimum starting temperature of –25°C,
switch off the engine coolant pre-heating systems. All other
heating systems remain active.
5. Crank the engine up to three times without activating the
starting aid fluid switch.
6. If the Engine does not start, activate the Diesel starting aid
fluid switch, while cranking.
7. Release immediately the starting aid fluid switch once the
Engine starts.
8. If Engine fails to start, go back to step 5.
9. Once the Engine is started, keep it at low idle speed for five
minutes, then shift Engine to high idle speed in order to
warm-up the Engine.
10. Once the Engine is up to working temperature, switch OFF
the remaining electrical preheating systems and, if an exter-
nal power source is used, disconnect the power supply cable.
Carefully start moving the attachment by operating controls
very slowly. Follow the steps below:
10.1 Raise the attachment slightly off the ground and start
by holding the clam closed function over relief. Keeping in
mind not to hold over relief for long periods of time as it
may damage the relief valve due to overheating.
10.2 After holding clam closed function over relief, slowly
open clam and hold open function over relief. Continue
working clam and holding over relief until the hydraulic oil
temperature gauge begins to move and then proceed on
to the bucket functions.
10.3 While holding the bucket functions over relief, con-
tinue to work the clam to keep the oil flowing through the
circuit.
10.4 As the temperature of the hydraulic oil rises, move
on to the stick and then to the boom functions, keeping
other functions in motion as well. Once the hydraulic oil
temperature is approximately +30°C, start adding swing
functions into motion.
3.10 STARTING THE ENGINE
177
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