1919
-19-
7.2.1. Water-oil coolers
Refer to certified drawing for connection of the water-oil cooler to the coolant.
The service manual of the lubrication and cooling system gives detailed information about the
water-oil coolers.
7.2.2. Cooling coils
Direction of waterflow is optional.
The cooling coils are suited for fresh as well as for seawater.
Maximum allowable water pressure: 0,8 MPa (8 bar, 116 psi).
Connection of cooling coil to water supply.
Warning: In order to avoid torsioning of cooling coil, hold premounted connection with suitable
wrench as shown in fig. 6 below.
8. BACKSTOPS
Backstops are safety devices and have to be inspected at regular time intervals.
The periodical inspection is to be carried out by authorised personnel and according to the
instructions described in the specific service leaflet supplied with the gear unit.
Carefully read these service and inspection instructions before starting any intervention on the
backstop.
The frequency of the inspections depends on the type of application.
The following table lists the maximum interval between 2 inspections for a number of
applications, other applications require at least one inspection every year.
In case of transport of people: the user has to follow local legislation re. inspection of safety
devices.
Application Maximum time interval
Hoist drives Every year
Conveyors Every two years
Elevators Every two years
Cooling towers (QVP.2) Every two years
Cooling towers (QVR.2) Every five years
Screw pump drives Every two years
Cooling coil
FIG. 6
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