Lombardini CHD series - Intake manifold; Exhaust manifold

- 28 - Workshop Manual LDW CHD _ cod. 1.5302.345 - 6° ed_rev. 05
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7
6
4
1
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5
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4
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8
5
B
A
1
2
3 4
9
Dry air components
1 Main cartridge 6 Rubber connecting hose to the
2Safetycartridge  airlter-manifoldorcompressor.
3 Axial cover 7 Airlterrestrictionswitch
4 Vacuator valve 8 Mounting for clogging indicator
5 Cap complete with clamp 9 Fastener
Scavenging valve 4mustbepositionedasingure4.
The cartridge can be cleaned by blowing compressed air
breadthways outside and inside the cartridge, at a pressure not
greater than 5 atmospheres, or in necessity case by knocking the
frontofthecartridgeseveraltimesagainstaatsurface.
Use a lamp to check that the lter element is not damaged or
inspect it against the light while slanted. In case of doubt, install
a new cartridge.
Disassembly / Reassembly
Exhaust manifold
Danger – Attention
Allow the exhaust manifold to cool before demounting it in
order to prevent scorching and burns.
Verify that the seal surfaces are free of distortions and scratches
and that the manifold is not broken in any way.
Whenretting,replacegasketsB.
 Tighten nuts to 25 Nm.
Intake manifold
The sealing surface should be clean, smooth and free of any
strains and scoring.
When reassembly replace gasket A.
 Tighten the fastening screws to 25 Nm.
Air lter clogging indicator
Important
The indicator has to be tightened to mounting 4, as shown
in g. 5 B. Due to space requirements, it can be assembled
by using special fastener 3 (g. A) and by creating a hole of
Ø14-15 mm in the rubber hose (see g. 4).
1 Airlterrestrictionswitch
2 Turbo adapter
3 Fastener
4 Mounting for clogging indicator
Note: There are two types: one for an aspirated engine and one
for a supercharged engine.
Setting for aspirated engine(LDW 1503 - 1603 - 2004
-2204) = 635 mm column of water.
Setting for supercharged engine (LDW 2004/T - 2204/T)
= 380 mm column of water.