Service Manual

Air Cleaner Assembly (Engine Mounted) ISB, ISBe and QSB (Common Rail [...]
Page 10-8 Section 10 - Air Intake System - Group 10
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Finishing Steps
• Install the fuel cooler lower molded sea water hose to
the aftercooler.
• Install the fuel cooler clip and mounting capscrew.
• If removed, install the fuel drain flex hoses at the fuel
cooler.
• Connect the aftercooler air inlet connection from the
turbocharger.
• Install the aftercooler sea water discharge to marine
gear cooler hose and tighten the hose clamps.
• If removed, install the four capscrews and the
aftercooler air discharge to the intake air connection.
• Tighten the aftercooler top and bottom air connection
hose clamps.
• Connect the battery power to the engine. Refer to
Procedure 013-009
• Open the sea water supply and return line(s). Refer to
the OEM troubleshooting and repair manual.
• Open the fuel supply and return lines. Refer to the
OEM troubleshooting and repair manual.
Operate the engine and check for leaks.
Air Cleaner Assembly (Engine
Mounted) (010-013)
General Information
The closed crankcase system has three major parts.
1 The air cleaner assembly; this filters the incoming air
and an oil blow-by filter element called a coalescing
filter.
2 Vacuum brake assembly; this keeps the engine from
drawing oil directly into the turbocharger if the air
cleaner is plugged.
3 Closed crankcase drain plumbing; this includes the
drain hoses and check valve. The check valve
prevents crankcase pressure from flowing backwards
in the air cleaner.
Initial Check
Check the restriction gauge on the air filter assembly. If
the gauge is red, the air filter element must be cleaned or
replaced.