Seiwa SW AP01 - Manual (Page 39)

Figure 3.12. Connections to a mechanical steering drive motor. 38
3.6.2. SOLENOID CONTROLLED HYDRAULICS
The motor-drive output of the Junction Box is suitable for direct connection to flow-
control solenoids, provided that their operating voltage is the same as the supply
voltage to the SW AP01 system and the solenoid current does no exceed 10A. The
connections to the Junction Box are shown in Fig 3.13.
IMPORTANT: Before connecting the solenoids, make sure that their wiring does not
have connections to ground or any other part of the vessel's wiring.
Figure 3.13 Connection to flow-control solenoids.
3.6.3 HYDRAULIC SYSTEM WITH REVERSING HYDRAULIC PUMP
Connecting autopilot pumps to hydraulic systems from different manufacturers is not
difficult and the following guidelines will be adequate for most installations. If there is a
doubt about the correct way to proceed, consult the manufacturer of the steering gear.
The following installation schematics show an OPTIONAL LOCK VALVE. Though this
is not essential for the normal operation of the system, it is an additional safeguard in
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