Hamilton Jet HJ241, Manual

Page: 73 / 202

6.1
Section 6
C
OMMISSIONING
This information is intended for use by CWF
Hamilton representatives. Refer to the Controls
System manual for details of commissioning
checks specific to the controls system.
6.1 PRE-LAUNCH CHECKS
1. Check all hydraulic shafts for damage and that
they are free from contamination (Weld splatter,
grinding dust, fibreglass resin, etc).
2. Check that all Inspection Covers on all Jet Units
are securely attached.
3. Ensure that the Bearing Housing is filled with the
correct amount of grease prior to operating the
Jet Unit for the first time. (Do not over
grease)
Refer to Section 9.6.3“Re-Assembly of the
Bearing Housing” , Item 28. .
4. STEEL HULLS ONLY: Check that the insulation
between the Jet Unit and the Hull of the vessel
measures NOT LESS THAN 1000 Ohms.
Refer to
Section 4.3.1“Checking the Insulation” for further
details.
6.2 POST LAUNCH CHECKS
Perform the following procedures before the
engines are started.
1. Check that there are no water leaks:
a) At the Transom Seal.
b) At the Intake Base.
c) From under the Bearing Housing (Water Seal
leak).
2. Check the JHPU oil level.
3. Check the oil level in the Pump Reservoir and
refill as required. See Section 8.5.2“HSRX Con-
trols Servicing Details” Item 3 .
4. Ensure that the HSRX Control Lever is touching
the stop pin when the Reverse Control is in the
full ahead position.
5. Check that the waterline is up to at least the
Mainshaft centreline so that the Jet Unit will
prime (pump water properly) when the engine is
started.
6. Ensure that the vessel is securely moored fore
and aft and is located in deep clean water.
W
ARNING
Ensure that the vessel is securely
moored, as during commissioning
the jet unit may produce large
thrust forces.
Do not proceed if any of the Con-
trol Systems Fault Alarms are still
activated
C
AUTION
If the HSRX Control Lever does not
touch the Stop Pin when the Reverse
Control is in the "Full Ahead" posi-
tion then overheating of the HSRX
System may occur.