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4) ADJUSTMENT 'RANGE' 'OFFSET'
The next step is to adjust the 'Range' (maximum slip)
and 'Offset' (minimum slip), see Figure 27. The goal
is to adjust the 'Range' such that in the 'AHEAD' or
'ASTERN detent position the propeller is turning, but
at the slowest possible speed (maximum slip). This
may correspond to approximately 70% slip. 'Offset'
will be adjusted to give approximately 30% slip
(minimum slip).
The slip RPM will vary with the temperature of the
gear oil, and therefore, it is important to warm-up the
engines and gear oil before these adjustments are
attempted.
The vessel should be tied securely to the dock with
only one (1) engine at a time running. The control for
the running engine can be placed in the 'AHEAD'
detent.
Dip switches 1 and 2 on SW1 on the 813 Trolling Valve
Actuator allows for set up of the Trolling Valve
Actuator. You will adjust 'Range' first, and then
'Offset'.
RANGE
Place SW1-1 in the 'ON' position. SW1-2 must be
'OFF'. Potentiometer R7 will adjust Port 'Range'
and R8 will adjust Starboard 'Range'. Adjust lightly
so as not to damage the potentiometer stops.
Adjust 'Range' for maximum slip, approximately
70% slip. Once set, turn SW1-1 to the 'OFF'
position.
OFFSET
Place SW1-2 in the 'ON' position. SW1-1 must be
'OFF'. Adjust for minimum slip approximately 30%
slip. You are looking for the point the clutch is still
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