HPU100 Hydraulic Power Units
Kobelt Manufacturing Co. Ltd.
Rev C
MNL-HPU100
18 of 32
4.3
F
UNCTIONAL
T
EST
The Functional Test should be carried out while the vessel is still at
dock and before it is taken out to sea, after installation has been
completed.
After installation and filling, perform the following function tests:
1.
Power ON the autopilot (or electronic jog lever).
2.
Activate the autopilot (or electronic jog lever) to command motion.
3.
Verify that the rudder position changed.
4.
Set the autopilot to the manual mode and operate the pump-set to determine if
the Port and Starboard directions are correct.
5.
If the rudder goes the opposite way than expected.
a.
Reverse the two electrical leads between the coils and the autopilot.
Most new autopilot systems will perform this test during their
dockside set-up procedures.
6.
Operate the pump-set and note the
“
hard-
over”
to
“
hard-
over”
(HO to HO) time.
7.
Verify that it is in the range of 10 to 16 seconds. Times outside of this range
indicate a mismatched pump-set for the steering system.
