This entry was posted on Friday, October 16th, 2009 at 8:54 am and is filed under Benett Trim Tabs. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.
Bennett Hydraulic Power Unit
, 10 16th, 2009The motor
for the whole trim tab system, the Hydraulic Power Unit, is installed inside the boat in a dry environment.
Hydraulic actuators do not rely on a seal where the shaft enters the cylinder body. Instead the seal is made on the piston face inside the cylinder where no marine growth can occur. Even if a barnacle grows on the shaft, it will not cause a leak.
If a seal on a hydraulic actuator should break, its replacement cost is about $1.00 compared to the cost of replacing an entire electric actuator.
With all systems, the trim planes, actuators, wiring and control switch have to be installed. With hydraulic trim tabs, a Bennett hydraulic power unit (pump) must be installed inside the boat. A few additional minutes spent installing the pump will give you years of trouble-free operation.
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