Hamilton Jet HJ241, Manual

Page: 74 / 202

6.2
6 COMMISSIONING
6.3 E
NGINE
R
UNNING
C
HECKS
(V
ESSEL
M
OORED
)
HJ-241 / HSRX
6.3 ENGINE RUNNING CHECKS
(VESSEL MOORED)
1. The Water Bearing (Cutless Bearing) must
operate wet. Do Not operate the Jet Unit with the
vessel out of the water, or with the vessel ballasted
such that the jet unit does not prime (pump water
properly) when the engine is started.
2. Ensure that the vessel is securely moored fore
and aft, in deep water.
3. With the Reverse Lever set to “Zero Speed”, the
engine(s) may be started and the engine
suppliers representatives can carry out engine
checks.
4. If the engine cooling water is taken from the Jet
Unit water offtake, confirm that water is passing
out of the engine exhaust outlets, where possible.
Periodically check that the engine is running at
the correct operating temperatureas this ensures
that the engine is receiving sufficient water from
the Jet Unit water offtake. Check that the cooling
water hoses are secure.
5. With the engines set to idle and the vessel
securely moored in deep water, have someone
monitoring the Reservoir and refill as required.
6. Idle the Engine at the lowest possible RPM.
7. Run the Pump for 5 minutes approximately
without moving the Controls - this will purge air
from the Oil Cooler. Refill the Oil Reservoir.
8. Start the Engine, operate the controls to stroke
each cylinder at least 10 times. This should
purge any remaining air out of the system.
9. Top up the Pump Reservoir.
10.Check the System to ensure that it is not
overheating. It should be possible to hold your
hand on any component for at least 2-3 seconds.
11.Ensure the Intake is under water - either with the
boat trailer reversed into the water or with the
boat moored securely.
12.Run the engine at idle, and recheck / refill the oil
in the Tank to the correct level shown on the
Dipstick.
13.Move the Reverse Control Lever slowly to fully
lower and raise the Reverse Duct several times.
This will purge the hydraulic system of air.
14.The Reverse Control Lever should now be moved
to full astern position. There is no Astern Stop
for the HSRX Lever. The full astern Reverse
Control Lever Stop should be adjusted so that the
Reverse Duct travels fully down (cuts across the
jetstream completely) with no surplus Reverse
Control Lever travel.
15.If more Reverse Control Lever movement is
required (for greater sensitivity) and spare cable
movement is available, the cable actuation radius
can be altered at the Reverse Control Lever.
NOTE: Not all Reverse Control Levers have an
adjustable detent. C.W.F. Hamilton & Co.
Ltd. recommend that any Reverse Control
Lever Detent action is de-activated.(not
used). The reason is that the Zero Speed
position will vary with wind and tide and
small movements either side of a detented
position would become difficult to achieve.
NEUTRAL DETENT AND ENGINE START
INTERLOCK MICROSWITCH ADJUSTMENT (IF
FITTED)
.
If microswitch adjustment is required, the
manufacturers instructions for the microswitch
should be followed.
C
AUTION
Failure to check cooling water
hoses may result in flooding of the
vessel.