Hamilton Jet HJ212, Installation And Service Manual

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Installation
Installation and Service Manual
Cable Pulley System
While the cable pulley system eliminates backlash inherent in push-pull cable systems, it is more complicated
to set up and is less common.
The cable-pulley system used on older jets requires the tiller arm to be extended so as to have a pair of holes
241mm from the steering shaft [1] centre, for the attachment of the cables.
A suitable extension can be bolted or welded to the tiller arm provided.
Contact CWF Hamilton & Co Ltd for more information on the set up of the cable-pulley system.
Push-Pull Cable System
Refer to drawing: CTHLM 06001 Steering Wheel Cable Operated.
This is a steering option and is not standard for the HJ212 jet unit.
If choosing a push-pull cable, use a heavy duty rotary system or a rack and pinion system such as those
tabulated below. For lightest steering action, keep the number of bends in the cable to a minimum and
ensure that bend radii are as large as possible. Make sure cables are well lubricated prior to installation.
No of turns lock to lock:
Steering type Number of turns lock to lock
All craft
Hole position Turns
Rotary systems
Teleflex SAFE T, BIG T Bottom 0.75
Flexatrol SAFE T, BIG T Bottom 0.75
Morse D290 Bottom 0.75
Ultraflex T55 Bottom 0.75
Rack and pinion systems
Morse Command 200 Bottom 0.9
Teleflex "The Rack" Bottom 0.9
Flexatrol "The Rack" Bottom 0.9
Ultraflex T57 or T59 Bottom 0.9
Cable pulley systems
All Types On extension 0.55-0.75
The cable should be connected to the lower hole in the tiller arm for all single jet installations. In the case of
multiple jet installations, the outer hole may be used to reduce the helm load if necessary.
Transom Preparation
The steering shaft torque required to reach full lock at the maximum power input of 250kW should be under
40Nm (30lbf ft). The maximum permissible steering shaft torque (for occasional use only) is 100Nm (75lbf ft).
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