Hamilton Jet HJ212, Инструкция по установке и обслуживанию

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Installation and Service Manual
Installation
H-bar driveline option
Refer to drawing: HJ21202004 H-Bar Drive Coupling
This option allows the engine to be mounted well back in the boat, with the engine mounted conventionally
on its own 4 mounts. It has the advantage that the driveline is accessible and can be removed readily. This
option can be used with engines that do not match the close coupling kit components.
The H-Bar bolts directly to the engine flywheel adapter and engages with the spline on the jet unit mainshaft.
Refer to drawing: HJ21202002 Flywheel Adaptor.
The procedure for installation is:

Install the jet unit into the vessel.

Mount the flywheel adapter plate onto the engine, tightening the bolts to the recommended torque.

Mount the H-Bar on to the adapter plate, tightening the bolts to the recommended torque.

Lift the engine into the vessel and engage the H-Bar spline with the spline on the jet mainshaft.

Adjust the engine mounts to achieve the engine position shown in the H-Bar coupling drawing.

Check that the engine and jet unit alignment is also acceptable when viewed from above.
Long driveshaft installations
For installations requiring a longer driveshaft, use a double universal driveshaft with no slip joint (sliding
spline).
Use the Hamilton companion flange on the jet unit. Any axial float will be taken up between the jet unit
mainshaft spline and the companion flange. Refer to drawing: HJ21202003 Couplings.
The flywheel adaptors may be used to match the driveshaft flange. Refer to drawing: HJ21202002 Flywheel
Adaptor.
To get the engine location and shaft line angle correct.
Refer to section: Jet Mainshaft Alignment.
Refer to drawing: HJ21202004 H-Bar Drive Coupling.
Consult C.W.F. Hamilton & Co Ltd. for an engineering check of driveline proposals.
Mounting the engine with H-bar and longer driveshafts
Mount the engine via mounting feet fixed to the engine bearers.
The feet and bearers do not have to withstand the propulsion thrust load as it is transmitted from the jet unit
directly to the hull.
Flexible engine mounts will reduce vibration and noise but these must be used in conjunction with a
driveshaft system which does not cause a radial or side load at the jet coupling as the engine moves.
With high speed and racing craft it is wise to anchor the engine with a stout cable in
case it breaks loose from the mounts in a crash.
Driveline components for diesel engines
A diesel engine installation will require the engine to be separately mounted from the jet unit. The driveline
will consist of the companion flange connected to a universal driveshaft, which is then connected to a flexible
coupling normally mounted on the engine flywheel. It is essential that the flexible coupling is a two stage
type of coupling, the first stage being sufficiently flexible to ensure that the slow speed torsional vibration
resonance point occurs below engine idle RPM. If this is not achieved, the companion flange is in danger of
becoming worn out due to excessive fretting through vibrational wear. The engine manufacturer will be able
to calculate the first stage torsional coupling stiffness required to achieve this.
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