B&G H2000 Pilot *DISCONTINUED* - Manual (Page 114)

h2000 Autopilot User Manual
Part 5 - Options
HB-0842-04
5-10
5.2.4 Ram Drive Unit Installation
General consideration must be given to the steering system and its
geometry before starting the installation. Many factors must be
contemplated for a practical solution. The information given here is
for guidance only, although where a maximum or minimum value is
given this must be adhered to.
It is essential that the unit is only installed in a fully functional
steering system, with no backlash or stiffness when operating.
Rectify any steering problems before installation of the ram drive
unit or the autopilot will not function correctly.
KEY POINTS ON INSTALLATION
x Check that the steering gear is in good condition. Rectify any
steering defects before installation of the ram.
x The ram drive unit must be secured onto a flat, rigid base; it
may be necessary to construct a platform section for the
mounting plate. For angled rudderstocks, an angled platform
section will have to be constructed.
x All setting up and aligning of the ram drive unit with the steering
system should be carried out with the rudder in the amidships
position and the ram arm at the centre point of its travel.
x The angle between the ram arm and the tiller arm should be as
shown in Figures 5.5 and 5.6.
x The ram arm should ideally be at right-angles to the
rudderstock. The ball-joint on the end of the ram arm will allow
a MAXIMUM of ±9º of misalignment.
FOR TYPE 3 RESERVOIR INSTALLATION
Do not turn the black reservoir tap on or attempt to move the
piston rod until all of the following are completed:
x The base foot of the ram and pump have been bolted into
position.
x The reservoir has been fixed to a bulkhead above the ram and
the pump.
x The reservoir has been filled with the oil supplied.