25
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The vibrations should die down if you move the rudder blade aft very slightly.
6.0 REPAIRS
6.1 REMOVING THE GEAR SEGMENT FROM THE AUXILIARY RUDDER
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If the auxiliary rudder seizes in the crown 500, follow the procedure described in
5.0 Maintenance (soaking, rinsing) rather than disassembling the system.
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If the entire auxiliary rudder including shaft has to be removed from the crown
500 and shaft 600, proceed as follows:
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Remove the auxiliary rudder system from the boat.
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Loosen bolt 501 in the crown 500.
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Slide the crown downwards on tube 600 until the gear segment and its mounting
are fully exposed. Retighten bolt 501.
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Release bolts 512 (Allen key).
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Unscrew retaining screw 511.
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Remove the gear segment assembly from the rudder shaft (use a rubber mallet if
necessary).
6.2 FITTING THE GEAR SEGMENT ON THE AUXILIARY RUDDER
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This is a two person job!
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Carefully place bush 507 into crown 500 and spray with WD-40 or Teflon.
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CAUTION: if the bush is damaged, it must be replaced. It may be possible to cut a
new bush out of 1 mm PTFE in an emergency. The bush must be an exact fit.
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First person: carefully insert the auxiliary rudder and shaft from below.
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Second person: carefully guide the shaft through bush 507 being sure not to
damage the bush.
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Slide bearing ring 506 down the shaft (use lubricant spray).
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Open clamp bracket 510 up a little using a screwdriver or hammer.
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Place the clamp bracket on the rudder shaft 630 and keep it opened up.
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Screw retaining screw 511 back in again.
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Allow the clamp bracket to close up.
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Snug bolts 512 down very tight.
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Loosen bolt 501 in crown 500.
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Fix the coupling in the working position.
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Slide the crown up into its end position.
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Tighten bolt 501.
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Check for play in the coupling - see 5.2.3.1 Resetting the Coupling.
6.3 MISCELLANEOUS
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The system may be disassembled and reassembled using the component drawings.
−
If cast components suffer collision damage and replacements cannot easily be
obtained, it may be possible to repair them. Cast aluminium components can be
welded back together quite easily if the faces to be joined are first heated
thoroughly for a few minutes with an open welding torch flame. The actual
welding procedure should only be attempted with proper aluminium welding
equipment.