ZF 400 Family, Operating Instructions Manual

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Introduction
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1.6.5 Electrical trolling valve (ETV)
An electrical device with the same functions and mode of use as the MTV.
The ETV is activated by means of a proportional solenoid valve.
1.6.6 Control valve shift control linkage
1.6.7 Towing
Towing can be performed continuously for 8 hours. Check that the oil temperature does not exceed 80°C. When the
engine is off, the position of the operating lever is irrelevant.
When installing the shift control linkage, make sure the travel on the lever takes it right to the travel limit, when
operated from the bridge console. If it doesn't, this could result in the burning of the clutches because the oil
flow rate will be too low.
Do not perform any work on the transmission during towing, as the propeller may rotate.
CAUTION
Fig. 6
DANGER