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Operation
Accessories
Slip valve
Certain Twin Disc reverse gears can be fitted with a slip
valve so that the lowest speed of the boat can be variably
reduced by 1–80% at engine speeds up to 1100 rpm.
IMPORTANT! Risk of overheating the reverse gear if
the slip valve is used at higher engine speeds than
1100 rpm.
Manoeuvring
Disengage the reverse gear and set the slip valve for max-
imum slip. Engage “Forward” or “Reverse” and set the de-
sired slip position within the permitted engine speed range.
In order to attain full propeller output, the slip valve lever
must always be in “disengaged” position when not being
used.
Flush and bilge pump
The bilge pump has a vacuum switch (1) that automatically
disengages the pump when water is no longer being drawn
into the pump.
The flush and bilge pump are engaged and disengaged
from a switch that is normally located at the main control
position. The bilge pump can also be engaged manually by
holding down the lever 2 for about 20 seconds.
Disengageable clutch
The clutch is disengaged when the lever is in position
(N) and engaged in position (F)
IMPORTANT! The engine speed must not ex-
ceed 800 rprm when engaging and disengaging.
The clutch should be given extra attention during the
first period of operation. Adjustment may be required
to compensate for disc wear. Refer to “Maintenance:
Accessories” when adjusting.
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