shaft brakes (locks) - SailNet Community
 
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post #1 of 5 Old 01-12-2002 Thread Starter
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shaft brakes (locks)

I have recently aquired a KP44 which has a Borg Warner transmission that I believe should not be alowed to turn when the engine is not running. I need to make or purchase a brake for the shaft and would welcome any input on this subject.
Timothy Balfour.
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post #2 of 5 Old 01-12-2002
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shaft brakes (locks)

It will depend upon what your exact setup is, but a brake doesn''t need to be too fancy. Some people I know use a vise=grip pliers on the shaft or a coupling, and it works fine for them.
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post #3 of 5 Old 01-12-2002
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shaft brakes (locks)

Ahoy, TNB. Big Red 56 here how much exposed shaft have you got to deal with and what direction does the shaft turn while operating and which way does it spin when the engine is off? Thought of a folding prop? I suspect a simple pipe wrench tooth clamp spring loaded and mounted by the shaft, with a pull/push cable led to a convient spot at the helm would work. Of course you would like any system to have a safety device to prevent starting before the shaft lock is dis-engaged. Need more details. Big Red56 the Pirate (don''t need no stinking engine)
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post #4 of 5 Old 01-14-2002
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shaft brakes (locks)

Try putting the tranny either in forward or reverse while the engine is off. That should do the trick. I would not use a pipe wrench or similar as it will score the shaft and give rust a chance to start.
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post #5 of 5 Old 01-15-2002
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shaft brakes (locks)

Ahoy hamiam, I think the point was that the mfg didn''t want the trans to do that . Although I did not state the precise nature of the jaws clamping on the shaft I would assume any simpleton would use a material suitable and pipe wrench like groves to get a grip. If visegrips are used the damage you refer to will occur over time.Quite possibly the expense of an acessory device is causing the owner some pause. All mechanical problems such as this can be solved and hand tooled by the owner if he has the time. Otherwise buy the MFG''s gismo and forget about it. Big Red the Pirate
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