Crane operation
11.3 Crane operation with main boom
11 - 104 3 112 993 en Operating manual GMK 6400
12.07.2013
11.3.11 Hydraulic oil cooling
Depending on the truck crane version, there are one or two hydraulic oil
coolers that regulate the hydraulic oil temperature automatically.
• In addition to this, you should ensure that the maximum permissible
hydraulic oil temperature of 80°C (176°F) is not exceeded
The current hydraulic oil temperature is displayed in the
Monitoring 8 sub-
menu. If the maximum permissible temperature has been reached, the bar
below the display will turn red. A warning message is issued additionally;
à Warning submenu, p. 11 - 111.
If the hydraulic oil temperature reaches 80°C (176°F):
• Stop operating the crane
• Let the hydraulic oil cool down while the engine is running
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