Raymarine E12139, Руководство по установке, Страница: 19 / 24

19
5. Post-installation check
Check the following points after installing the pump:
1. Is the pump installed in such a way that hose lengths are kept to a minimum?
2. Is the pump secured to a substantial structure on the boat?
3. Have you connected a reservoir pipe between the helm pump and autopilot pump?
4. Have you fitted check valves where appropriate?
5. Are the hydraulic pipes made of a suitable flexible material (i.e. rubber or nylon) with a
suitable pressure rating?
6. Are power cables correctly routed and securely connected to the course computer or
ACU?
You have now finished installing the pump. After installing the rest of the autopilot you must
bleed all air from the system (see below).
Note:
When you have installed the entire autopilot system, you will also need to complete an autopilot
steering check. Refer to the control unit handbook for more details.
Bleeding the system
Bleeding the hydraulic system correctly is one of the most important steps when installing the
autopilot hydraulic pump. If there is any air in the system the steering will feel unresponsive,
particularly when you turn the wheel to hardover.
IMPORTANT: Any air in the hydraulic system will greatly reduce the performance of the
autopilot and the overall steering system.
Follow the helm pump manufacturer’s instructions to fill the hydraulic hoses so that the A, B
& R hoses do not contain trapped air or air bubbles. The hose connections to the pump may
need to be loosened to allow air to escape. The pump can now be run. Follow the set up
instructions for your autopilot control head. If the pump runs but the rudder does not move,
use the autopilot control head to initiate a course correction. This will start the pump.
Manually turn the helm wheel in the same direction as the course correction. This forces fluid
into the pump, displacing any residual air.
In addition to the manufacturer’s instructions for bleeding the steering system, follow these
steps to bleed the autopilot pump once you have installed and set up the rest of the autopilot
system:
WARNING
Steering systems
Keep clear of moving steering systems at all times. Protect moving parts
from access during normal use.
81178_5.book Page 19 Wednesday, April 24, 2013 6:42 PM