Perkins M85T - How to stop the engine; Adjustment of engine speed range

Chapter 6 TPD 1399E
Page 18
Fuel tanks
Fuel tanks should have the following features:
• The ller neck (A2) should be raised so that water
will not enter when lling.
• The ller cap should seal effectively to prevent
water entering when under way.
• A vent pipe (A3) should be tted, again in such a
way as to avoid the entry of water.
• The tank (A1) should have a sump or angled bottom
with a drain tap (A4) so that water and sediment
can be removed. (This is not always possible).
• Internal bafes (A5) may be required to prevent
fuel surge.
• The tank should have a removable panel (A6) to
simplify cleaning.
• The fuel pipework should be as simple as possible
with the minimum of valves and cross connections,
so that obscure fuel feed problems are minimised.
In a multiple engine installation care should be
taken to ensure that the pipework for each engine
is kept separate.
• A fuel sedimenter (i.e. water trap) (A8) is required
in the fuel system between the fuel tank and the
engine mounted lift pump (A9). To avoid problems
when venting air after draining the sedimenter, it
should be preferably installed below the normal
minimum level of fuel in the fuel tank. (This is not
always possible!). A valve (A7) should be tted
between the tank and the sedimenter, so that when
servicing the sedimenter the entire system will not
drain down.
• The tank should have at least two connections;
a fuel feed connection (A11), and a fuel return
connection (A10), which should preferably be
extended to near the bottom of the tank. Whenever
possible a tank should only supply one engine, but
in any case each engine should have its own fuel
pipes, from tank to engine.