Westerbeke WPDS-20 Technical Manual page 17

Marine diesel engine/marine diesel generator
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16
gine can be warmed up with the clutch
in neutral at 1000 rpm.
Warming up
with clutch in neutral takes longer and
tends to overheat the transmission, if
partial engagement occurs, which can be
detected by propeller shaft rotation.
7. Reverse Operation.
Always reduce en-
gine to idle speed when shifting gears.
However, when the transmission is en-
gaged, it will carry full engine load.
NOTE:
The SAO tran-smission requires that,
when backing down, the shift lever must be
held in the reverse position, since it has
no positive overcenter locking mechanism.
STOPPING ENGINE
1. Position shift lever in neutral.
2. Move throttle lever to idle position.
3. Pull fuel push-pull STOP control out.
(The stop control functions by cutting
off the fuel from the fuel injection
pump.)
NOTE:
Idle engine for a few minutes to
dissipate heat gradually before shutdown.
OPERATING PRECAUTIONS
1. Never run engine for extended periods
when excessive overheating occurs as
extensive internal damage can be caused.
2. DO NOT put cold water in an overheated
engine.
It can crack cylinder head,
block, or manifold.
3. Keep intake silencer free from lint,
etc.
4. Do not run engine at high RPM without
clutch engaged.
5. Never Race a Cold Engine as internal
damage can occur due to inadequate oil
circulation.
6. Keep the engine and accessories clean.
7. Keep the fuel clean.
Handle it with
extreme care because water and dirt in
fuel cause more trouble and service in-
8. Do not allow fuel to run low, because
fuel intake may be uncovered long
enough to allow air to enter the
system, resulting in lost -time re-
quired for priming.
9. Do not be alarmed if temperature gauges
show a high reading following a sudden
stop after engine has been operating at
full load.
This is caused by the
release of residual heat from the heavy
metal masses near the combustion
chamber.
Prevention for this is to run
engine at idle for a short period
before stopping it.
High temperature
reading after a stop does not neces-
sarily signal alarm against restarting.
If there is no functional difficulty,
temperatures will quickly return to
normal when engine is operating.

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