Weir Warman 650 M200-MCR-G, Manual, Page: 167 / 287

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BA 5010 EN 03.10
5.10 Cooling
Depending on requirements, the gear unit is fitted with a fan, a cooling coil, an added­on oil­supply system
with oil cooler or a separately provided oil­supply system. In the case of a separate oil­supply system, the
specific instructions for this oil­supply system must be observed.
When installing the gear unit free convection must be ensured on the housing surface,
in order to definitely avoid overheating the gear unit.
5.10.1 Fan
As a rule the fan is mounted on the high­speed shaft of the gear unit and is protected from accidental
contact by an air guide cover. The fan sucks air through the grid of the air guide cover and blows it along
the air ducts on the side of the gear housing. It thereby dissipates a certain amount of heat from the housing.
2 2
1 1
H... B.../ T...
Fig. 26: Fan on gear units types H..., B... and T...
1 Fan 2 Air guide cover
A detailed view of the gear unit can be obtained from the drawings in the gear­unit documentation.
For gear units fitted with a fan, sufficient space must be allowed for air intake
when mounting the safety guards for the coupling or other components.
The correct distance is given in the dimensioned drawing in the gear­unit
documentation.
It must be ensured that the fan cowl is correctly fastened. The fan cowl must be
protected against damage from outside. The fan must not come into contact
with the fan cowl.
The cooling effect is considerably reduced if the fan or the gear housing are dirty
(see section 10., "Maintenance and repair").