38
RAW WATER SYSTEM
The raw water system allows to cool the engine coolant
and the exhaust gas.
Raw water is drawn into the heat exchanger by the
engine raw water pump. The raw water is drained via the
exhaust elbow, where it is mixed with exhaust gases.
The siphon breaker prevents raw water entry into the
cylinders via the raw water/exhaust system.
NOTE !
The use of a siphon breaker is mandatory if the exhaust
elbow is under the waterline at full load or at less than
200 mm above it. A siphon breaker is mandatory in all
Sail Boat and when there’s a risk of water entry in the
engine.
A raw water filter must be fitted between the raw water
intake and the raw water pump of the engine.
ENGINE ELECTRICAL SYSTEM
The engine extension harness should be away from any
water projection and must be correctly attached as high
as possible in the hold.
Engines in metallic hulls are generally fitted with a two-
pole electrical system. This system allows to electrically
isolate the engine from the electrical ground of the boat.
The alternator belt drives both the coolant pump and the
alternator. Additional belt can also be fitted.
CHECK BEFORE STARTING
WARNING !
Put all the protective covers back before starting the
engine.
CAUTION !
Open the sea cock before starting the engine. The raw
water pump impeller will be damaged if it runs dry even
for few seconds, and may lead to engine overheating.
Perform all of the following operations before starting
the engine :
1. Open sea cock. Prime the raw water system if
necessary.
2.
Start the compartment fan (if fitted) for at least five
minutes. Otherwise, open the hold.
3.
Check that there is sufficient fuel.
4. Move the control lever to the neutral position.
5. Open fuel cock, prime the system if necessary.
6.
Check the engine and transmission oil level and fill
with the recommended oil if necessary.
7. Check the coolant level, top up if necessary.
8. Check the mechanical control cables, lubricate as
required.
9. Check there are no fuel, oil, coolant or water leaks.
10.
Check the alternator belt.
11.
Turn ON the main battery switch.
S07
STARTING & RUNNING
Содержание QLS 65T
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