B&G H2000 Pilot *DISCONTINUED* - Manual (Page 121)

h2000 Autopilot User Manual
Part 5 - Options
HB-0842-04
5-17
5.2.8 Hydraulic Drive Pump Installation
Important Note
When dealing with any hydraulic system great care must be taken
to ensure that a high degree of cleanliness is observed and no dirt,
moisture or foreign objects are allowed to enter the system. Only
the recommended fluids must be used. Use Q8 DYNOBEAR or
equivalent (10cSt at 40° C).
(1) Drain the steering system from the lowest point,
usually at a cylinder coupling.
(2) Fit T-pieces into the port and starboard delivery
lines, couple the lines to the appropriate service ports of
the pump using flexible hydraulic hose.
(3) Couple the reservoir port to the reservoir/balance
line from the helm units. A low pressure, transparent
plastic tube can be used. Ensure that this line rises
gradually with no down turns.
(4) Refill the steering system as recommended by the
manufacturer, using clean hydraulic fluid.
(5) Fill the cylinder by temporarily removing the cylinder
couplings and hoses at each end, refit the hoses
securely.
(6) Starting at the highest helm unit, fill the helm
reservoir.
(7) Slowly turn the steering wheel two turns to port and
then to starboard, checking the level of fluid in the helm
unit reservoir at all times.
(8) Next, turn the wheel fully in one direction until a
slight pressure is felt, continuously monitor the reservoir
level.
(9) Repeat in the opposite direction and continue in this
manner until topping up is no longer necessary.
(10) When satisfied that the steering is fully bled
manually, apply power to the pump unit.
(11) Turning the wheel fully from lock to lock will cause
the pump to self-purge.