ComNav 1500 - Page 29

ComNav 1500 / 1510 Autopilot - 22 -
The hydraulic cylinder should be connected to the mechanical steering quadrant
with a ½” bolt and locknut through the quadrant arm and according to the geometry
shown below. A bridging bracket may have to be made across the quadrant arm if
a suitable connection point is not available. Alternatively, a separate tiller may be
connected to the rudderstock above or below the quadrant and the cylinder rod end
bolted to it. The cylinder has self aligning and self lubricating bearings making
alignment less critical and eliminating any maintenance. A strong support must be
made for the cylinder trunnion mount since forces of over 1600lb. (700kg) can be
developed. Connect the Pumpset to the cylinder with flexible hoses capable of
1000PSI (70 bar) working pressure. Fill the Pumpset reservoir with ISO32 or
equivalent following instructions in Dockside Setup. If operating in cold
temperatures, hydraulic oil of viscosity grade ISO 10 is recommended. The bypass
valve should be wired to the Distribution Unit terminals #16 and #17 as per System
Wiring Diagram. If the bypass valve wiring connection is reversed, it has no effect.
Installing reservoir into the Pumpset: Thread into reservoir port on the Pumpset. Do
not tighten reservoir by the reservoir body. Tighten by using the flats on the fitting at
the bottom of the reservoir.
Warning: Hand steering is not possible when an Autopilot Mode is selected with a
Linear Drive. The Autopilot must be turned off with the OFF button to disengage the
Autopilot drive and enable the mechanical steering. It is the skipper’s responsibility
to brief all crew members on this procedure.
2 6-15/16"
2-3/4"
1-3/8"
2
5-7/8"
3-3/4"
18-1/2"
50°
50°
CLEVIS
BLEED
FITTINGS
TRUNNION
Ø1/2
BOLT DIAMETER
1/4" NPT
TILLER
2-9/16
Ø5/16
4 MOUNTING
BOLTS
DESCRIPTION
1-1/2 X 9 HYDRAULIC LINEAR DRIVE
SOLENOID BYPASS VALVE WITH RESERVOIR
CYLINDER
MODEL
1-1/2 X 9
DISP
in
13.14
3