RDG603A11 - Issue 10 - Shire 14 85, 130 WB Owners
Manual Page 28 of 52
•
Siphon Breaker Maintenance
1. On commercial vessels achieving in excess of 150 engine hours per year, the
unit should have the small valve removed from the top and this should be
thoroughly washed in warm soapy water to remove salt encrustation.
2. On a pleasure vessel this should be done twice a year.
3. On reassembly the engine should be run and the unit checked for leaks. The
hose junctions should also be checked for leaks as part of the daily inspection
procedure for sea cocks, water pipes, oil levels, etc.
21. Hydraulic Drive Transmissions
If an engine is to have a
Hydraulic Drive Transmission
attached to it, a number of
points must be observed.
•
Bobtail engines (i.e. Engines supplied without a marine gearbox), normally do not
have a gearbox oil cooler fitted, however if a cooler is supplied, this will only be
suitable to cool a conventional marine gearbox.
•
Hydraulic drive transmissions generate far more heat than a conventional marine
gearbox, therefore the size of oil cooler installed must be calculated by the
hydraulic drive transmission supplier; to ensure it has sufficient cooling capacity,
and is sized appropriately taking into account:
o
Maximum engine power
o
High ambient summer air temperature
o
Summer River/Canal/Sea temperature
o
No additional restriction to engine coolant flow is present
Skin tanks will also need to be increased by approx. 10% to accommodate the
additional heat dissipation required, when a hydraulic drive system or hydraulic bow
thruster is used,
Or
An additional separate skin tank of suitable capacity with separate water circulating
pump will need to be fitted for a hydraulic drive transmission.
Oil coolers should be installed in the seawater cooling system after the
engine, not before. Coolers that are installed before the engine will
invalidate the engine warranty.
22. Engine Start Battery
For the required specification of the Engine Start Battery, please refer to
Section 10
–
Technical Data.
Summary of Contents for SHIRE 14 85 WB
Page 45: ...SECTION 8 Wiring Diagrams...
