Lister Petter 0600123LPW3A01, Руководство по ремонту, Страница: 13 / 88

ALPHA series engines worksHoP mAnuAL
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Figure 2.2.2 Cyclonic Type Air Cleaner
1. Access to the paper element (B) is gained by
undoing the wing nut in the centre of the main
body of the filter.
2. Remove the element.
3. The element can be cleaned by directing a low
pressure compressed air nozzle up and down
the pleats from inside the element.
4. Inspect the element for damage by placing a
suitable light source inside it. If the element is
found to have any holes it must be replaced.
5. Replace the element and dust cap.
2.2.3 intake restriction
The maximum intake restriction figures at full load
are 254mm WG (10.0in WG).
2.3 tHe mAnifoLds And siLenCer
Various inlet and exhaust manifolds are available for
industrial and marine engines for which full details
can be found in the relevant Master Parts Manual.
The inlet manifold is secured by bolts and the exhaust
by studs. There are two studs or bolts to each cylinder
and these must be torqued to 9.0Nm (6.5lbf ft).
Exhaust manifold bolts on turbocharged engines
LPW(S)T4 must be torqued to 21Nm (15.5lbf-ft).
Whenever the manifolds are replaced all traces of
the old exhaust gaskets and joints must be removed
and new ones fitted.
wArning
EXHAUST GASSES CONTAIN CARBON
MONOXIDE WHICH IS A COLOURLESS,
ODOURLESS AND POISONOUS GAS THAT
CAN CAUSE UNCONSCIOUSNESS AND
DEATH.
2.3.1 the inlet manifold restrictor
Some builds, as shown in the table below, are fitted
with an inlet manifold restrictor.
The restrictor is secured in position with Hylosil 303.
Builds
LPW2 18, 27, 28, 41, 57, 58, 74, 79, 81, 177
LPW3 18, 27, 28, 41, 74, 79, 81, 113, 177
LPW4 18, 27, 28, 41, 57, 74, 79, 81
LPWS2 18, all 400 Series
LPWS3 07, 18, 41, 57, all 400 Series
LPWS4 18, 57, all 400 Series
2.3.2 the exhaust silencer
Various silencers and adaptors are available for
industrial and marine engines for which full details
can be found in the relevant Master Parts Manual.
CAution
Detrimental damage to the engine, or loss of
performance, may be caused if exhaust gasses
are sucked in by the air cleaner, the axial or
radiator fan.
2.3.3 exhaust Back Pressure
The maximum permissible back pressure figures
are 762mm WG (30.0in WG) except the LPW(S)T4
which are 508mm WG (20.0in WG).
2.4 tHe CoLd stArt Aid
Cold start aids are not fitted to LPWG engines.
2.4.1 LPw and LPwt
To provide additional heating of the combustion air
during starting a 345W heater plug may be fitted to
the inlet manifold on LPW engines. A 696W plug is
fitted on LPWT4 engines as standard.
Figure 2.4.1 Manifold Heater Plug
2.4.2 LPws
LPWS engines are fitted with a 12V glow plug
for each cylinder and a manifold heater plug as
standard.