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Old 08-11-2011, 05:28   #1
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Join Date: Oct 2011
Location: Michigan
Boat: Bruce Roberts Spray 45RC
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Raytheon 6000st Hydraulic Drive

The hydraulic drive on 6000st slowed down and poped the breaker in heavy use. Now it will run momentarily then pops breaker. It does not smell burned and the brushes and armature look good. Could it be dragging in the pump area or does anyone have a suggestion.
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Old 08-11-2011, 05:52   #2
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Boat: 5 m Bolger runabout, plus a Starwind 860 power tri under construction
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Re: Raytheon 6000 st hydraulic drive

If the motor's not damaged, but the breaker's popping, it could be stalled. A stuck bearing, perhaps, or something jammed in the pump. I'm not sure if you can easily decouple the motor from the pump on that drive; if you can, try turning the shafts by hand (with power disconnected of course), which might give you a clue as to which part is seized.
Hopefully someone with more hydraulics experience will chime in; I rarely touch these systems.
Matt Marsh
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