Gear units – Operating and Assembly Instructions
36 B 1000 en-4419
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3.13 External oil-air cooler
The gear unit is supplied without the oil filling.
• Fill the gear unit with oil before commissioning.
The oil-air cooler is delivered as an additional unit. The scope of delivery includes the oil-air cooler and
the necessary connection hoses. Installation of the hoses and commissioning are performed by the
plant operator.
3.13.1 Assembling the cooling system
Connect the cooling system as shown in the illustration.
Optional temperature monitoring
Intake connection / gear unit oil drain
P
Gear unit pressure connection above or
below the oil level
Figure 21: Connecting the cooling system
Fit the union nuts according to(chapter 7.4).
After assembling the oil lines, fill the gear unit housing with the gear oil type and quantity that is printed
on the type plate. Approximately 4.5 l of oil are additionally required for the hose lines. When filling,
always use the oil level screw as an indicator of the precise quantity of oil. The oil quantity on the type
plate is a guide value and may vary, depending on the gear ratio.
3.13.2 Oil-air cooler electrical connection
Please comply with all national safety regulations for the electrical connection. Please observe all
applicable documents, in particular the operating and installation instructions for the oil-air cooler.