Cooling Coil - Siemens FLENDER B3 E Series Assembly And Operating Instructions Manual

5.10.2 Cooling coil

The gear unit can be fitted with a cooling coil in the oil sump. Cooling water is supplied by way of a water
connection. The operator must ensure this. Either fresh water, sea water or brackish water can be used
for cooling purposes.
When water is flowing through the cooling coil, a certain amount of heat is transferred from the oil to the
water and thereby removed from the system.
Fig. 22: Cooling coil on gear units types B... and T3..
1 Cooling­water connection
A detailed view of the gear unit can be obtained from the drawings in the gear­unit documentation.
Complete immersion of the cooling coil must be ensured, because otherwise water
condensation may occur.
The water can flow through the gear unit in either direction. The pressure of the cooling
water must not exceed 8 bar.
If the gear unit is being withdrawn from service for a longer period and if there is
a danger of freezing, the cooling water must be drained off. Remove any remaining
water with compressed air.
The ends of the cooling coil must never be twisted because this could destroy the
cooling coil.
The reducing bolt must not be tightened or removed because this may result in
damage to the cooling coil.
Be especially careful when blowing with compressed air.
Wear protective glasses!
Avoid too high pressure on the cooling­water entry. For this a cooling­water flow control must
be used (e.g. a pressure reducer or a suitable valve).
For connecting dimensions, refer to the dimensioned drawing of the gear unit. The required
cooling water quantity and the max. permissible inlet temperature are given on the data sheet
and/or the list of equipment.
X
3 1
2 Reducing screw
BA 5033 EN 03/2011
34 / 96
X
2
3 Output shaft