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3. Move the control lever quickly and firmly into
reverse, then increase the speed.
Note! If the boat has two engines, it is vital that both
engines are running, particularly when manoeuvering
forwards and backwards. If one engine has not been
started and the other is used to reverse, water may
enter the stopped engine via the exhaust port and
cause serious damage.
The equipment shown below can be obtained
only for propulsion engines in working boats.
Trolling valve (Twin Disc MG507-1, MG507A-1)
If the reverse gear has a trolling valve (accessory),
this should be used when the boat is to move very
slowly.
Engage the trolling valve to max. slip when the re-
verse gear control is in neutral. After selecting “For-
ward” or “Reverse”, the trolling valve can then be set
in the required trolling position within the permitted
speed range.
The engine speed must never exceed 1100
rpm when using the trolling valve.
For full propeller power during operation, the trolling
valve control lever should always be in the “Disen-
gaged” position when the valve is not in use.
Disengageable clutch (accessory, TAMD71)
The clutches have two positions on the control lever.
Lever towards engine for declutching, away from it
for neutral. When engaging and disengaging the
clutch, the engine speed must not exceed 800
rpm.
Disengageable scavenging/bilge pump
(Accessory TAMD71, 24V)
These pumps are engaged and disengaged via elec-
tromagnetic connections and switches on the instru-
ment panel. The bilge pump has a vacuum switch
which automatically disengages it when the level is
so low that no water is being sucked into the pump.
The vacuum switch also has a lever for manually en-
gaging the pump.
This lever should be pressed in for approx. 20 secs.
when engaging the pump.
Type S controls for manoeuvering trolling valve
Disengageable clutch
F = Engaged
N = Neutral position
Bilge pump
1. Vacuum switch
2. Actuating lever
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