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Maintenance Manual
To verify that the transmitter arrangement is correctly installed, please go through all checkpoints in
the list below.
Before proceeding with the inspection, make sure to switch motor control cabinet to "LOCAL
CONTROL" position to avoid unintended operation of the Steering Gear while work is carried out.
Figure 1.
Item Component
1
Feedback Units
2
Shaft [4]
3
Chains [6A, 6B]
4
Chain tensioners
5
Chain tensioners
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FB40 Feedback Inspection
Note!
Description
Make sure the locking nuts [15] is properly tightened.
Check that the center shaft is locked against rotation in the flat
bar on the rudderstock/hydraulic nut by tightening the lower nut
and securing it with a counter nut, each properly tightened.
Tightening torque; Lower nut, lightly oiled threads – 160 Nm
Counter nut, lightly oiled threads – 100 Nm
The chain shall travel horizontally; make sure the chains is not
climbing.
Check that the chain tensioners is positioned halfway between the
two chain wheels when the rudder is in center position.
Check that the chain tensioners is pre-tensioned according to
figure 8, 5mm is ideal, but 4-10mm can be accepted. Pre-tension
obtained by adjusting position of bracket.
Reference Status
Sign
Figure 2
Figure 1
Figure 1
Figure 1
Figure 3
P a g e
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