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Midwest Industries, Inc.
Ida Grove, IA 51445 800-859-3028 0004549
Page 8 of 23 shorestation.com 12-3-19
asd
2021-12-16
The Hydraulic Power Unit (HPU) is a 24 VDC powered
hydraulic system (
). This system converts the electric
power stored within the batteries into hydraulic pressure. The
pressure is delivered to the lift tube through hoses and causes
the lift cylinders inside the lift tubes to retract.
The retract motion pulls the lift cables and generates the lifting
motion of the boat lift platform. The internal structure of the lift
tubes is show in Figure 3.
The system charge is maintained by either a solar panel or an A/C
powered Battery Tender®. The charge source should be constantly
connected to the lift batteries. The lift can operate without the
charging source present, but permanent battery damage could result
if the batteries are run too low.
Figure 2 - Hydraulic Power Unit (HPU300 shown)
Batteries
Power Unit