Crane operation
11.1 Before operating the crane
Operating manual 3 302 819 en 11 - 17
GMK3060
13.12.2018
– In the case of additional equipment
With the relevant equipment, there is a valve for preheating.
(A) – Preheating
• Open the valve – lever (1) parallel to the line.
• Select and confirm the symbol (2) and retract
the lifting cylinder against the stop;
à p. 12 - 69.
The hydraulic oil is preheated when the
display (3) shows a temperature of at least
10 °C (50 °F).
(B) – Before crane operation
• Close the valve – lever (1) at right angles to
the line.
After preheating
• Operate all crane functions at least twice after preheating (hydraulic oil temper-
ature above 10 °C (50 °F)) in order to remove the cold oil from all parts of the
hydraulic system.
G
Risk of burning yourself when the hydraulic oil is hot!
The add-on parts become very hot during operation.
Wear appropriate protective gloves and be careful not to touch hot parts.
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