Simrad Hydraulic Linear Drive
12
20220109E
Remove the valve cap on the tank when the unit is installed.
Figure 6 HLD Installation
3.2
Electrical connection
AC10/AC20 Autopilot Computer,
J300X/J3000X Junction Unit
The HLD is connected to the autopilot via AC10, AC20, J300X or
J3000X according to the following diagram:
POWER PCB
TB1 TB2 TB3 TB4 TB5
TB6
Drive
Engage
S
ol.
-
M
ot
or
S
ol.
-
M
ot
or
TB7
HYDRAULIC
LINEAR DRIVE
Single pole
clutch/bypass
switch
Figure 7 HLD connection to ACXX and J3XX
J101A Junction Unit
The HLD can also be connected to previous models autopilots using
the J45A, J101A or J1000 Junction units. The Junction Unit controls
the current to the motor and the bypass valve. The Junction Unit also
has built-in speed regulation of the HLD, which allows rudder speed
