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Go Back   SailNet Community > On Board > Gear & Maintenance
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  #1  
Old 12-23-2003
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AutoHelm ST4000

I had a new ST4000 tiller pilot on my previous boat. ( CheoyLee Frisco flyer 26)It worked perfectly. I sold the Cheoy Lee without the autopilot. I installed the same unit in the next boat ( Tartan 27) Now it only holds the course on a reach or a beat. Downwind or under power it yaws 20-30 degrees either side of the course and will not maintain course on auto track. I''ve tried all the adjustments in the manual and nothing seems to change it''s response. Any one have any ideas what''s wrong?
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Old 12-24-2003
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AutoHelm ST4000

Try moving the compass. Also the boats sail differently so you might want to try messing with sail balance.
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Old 12-24-2003
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AutoHelm ST4000

I had a st 3000 doing the same thing on a wheel boat, turned out the cables were just slightly loose and the small amout of play made it wonder. Even though you could hold the wheal still and the boat would track strait line. Is there any play in your tiller.
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Old 12-31-2003
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AutoHelm ST4000

I too have an ST4000 tiller pilot on a 40'' IOR design sloop. In the installation instructions it says to keep the compass 3 ft. away from anything magnetic and aft as well as on the CoB.
One thing I found too, is that the motor brake (if it has one) is not strong enough to hold the tiller aginst too much weather helm. I use an adjustable bungee to assist and it seems to help quite a bit.
......................._/)
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Old 09-27-2011
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can anybody help me ,my st4000 tiller ram is not function well(a bit of grinding of what i suspect worn gears or motor drive ) iam after a schemantic drawing ,and some one to supply parts , apparently quite a few people on this sight have had good results with kodiakjack 99 if so could you put me in the right direction, many thanks meggs

Last edited by meggs; 09-27-2011 at 06:05 AM.
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