Priming And Venting The Fuel System As Fitted On Later 12 & 16 Cylinder Engines; Filling The Cooling Systems - Perkins 400 Series User Handbook Manual

PRIMING AND VENTING THE FUEL
SYSTEM AS FITTED ON LATER 12 & 16
CYLINDER ENGINES
Loosen the union nut on the fuel feed pipe to
the front cylinder head on the fuel rail Fig. 9.
NOTE: The fuel system should not be bled
from the water trap/sedimenter filter (if
fitted), since this is on the suction side of the
lift pump. Fig. 10. However, it is important to
drain the water from this unit periodically. Do
not operate the priming pump but unscrew
the valve at the bottom of the filter about 4
turns until it drops down about 25 mm (1
inch). Allow the water to drain out and then
screw the valve back in until it is hand tight.
Operate the priming pump by pressing the
rubber button Fig. 10. Continue priming until
air free fuel flows from the union. Re-tighten
the union nut.

FILLING THE COOLING SYSTEMS

WARNING
PRESSURISED - DO NOT REMOVE THE
FILLER CAP FROM THE RADIATOR
WHILE THE ENGINE IS HOT. HAND
PROTECTION MUST BE WORN.
The use of non-inhibited water is not
recommended owing to chemical reactions
which can result in corrosion and furring-up
of the cooling system. A solution of either
universal anti-freeze
preventative and water must be used. Refer
to page 21.
After installation and before the first start
remove the radiator cap, see Fig. 11. Fill the
cooling system and run the engine off-load
for one minute to ensure that the system is
completely filled. Stop the engine and top up
the system to within 25 mm (1") of the top of
the filler neck then replace the cap. Should
the engine be fitted with water cooled
exhaust manifolds, these will need bleeding.
(Older engines without vent pipes only).
(See Workshop Manual Section
4012/16 Diesel, February 1997
THE COOLING
SYSTEM IS
or corrosion
Q3).
OPERATING INSTRUCTIONS
Fig. 9
Fig. 10
Fig. 11
Key
(Fig. 10 & Fig. 11)
1 Normal fuel flow
2 Priming circuit
3 Water trap/sedimenter
4 Drain valve - DO NOT open when
engine running
5 Radiator cap
1
2
3
4
5
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