HPU400 Hydraulic Power Units
Kobelt Manufacturing Co. Ltd.
Rev A
MNL_HPU400
13 of 33
Figure 4: Connections in Top Face of Hydraulic Manifold
(4) four hydraulic connections are required:
•
Connect ports ‘
CYLINDER
’ to the
(2) two steering cylinder ports. It is not critical to
identify which of the steering lines is Port or Starboard as most new autopilots will
determine the pump direction and program the drive outputs to suit.
•
Connect the ‘T
ANK
’ port to the
to pump suction line with recommended in line filter.
•
Connect the ‘PRES
S
URE’ to the pump.
3.3
E
LECTRICAL
The pump unit is manufactured for operation from 12VDC, 24VDC, or 115/208-230VAC supply
voltages. For DC motor configurations the electrical junction box contains a remote starter
relay, a thermal breaker, and a terminal strip. The DC start relay may be activated with a
