WÄRTSILÄ VASA 6L32, Instruction Manual

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Oil is led through bores to other lubricating points, like camshaft
bearings (9), injection pump tappets and valves, rocker arm
bearings (11) and valve mechanism gear wheel bearings, and to
oil nozzles for lubricating and cooling. Turbocharger is also con-
nected to the engine lubricating oil system.
Back-flushing oil from automatic filter flows through a pipes to
the centrifugal filter (1) and back to the oil sump.
The electrically driven prelubricating pump is a gear type pump
and is equipped with common overflow valve with lubricating oil
pump. The pump is connected in parallel to the direct driven
lubricating oil pump. The pump is used for:
•
filling of the diesel engine lubricating oil system before
starting, e.g. when the engine has been out of operation for
a long time,
•
continuous prelubrication of a stopped diesel engine through
which heavy fuel is circulating,
•
continuous prelubrication of stopped diesel engine(s) in a
multi-engine installation always when one of the engines is
running.
The pressure in the distributing pipe is regulated by a pressure
control valve (4) on the pump. The pressure can be adjusted by
means of a set screw (Fig 18-2, pos. 5) on the control valve. It is
very important to keep the correct pressure in order to provide
efficient lubrication of bearings and cooling of pistons. Normally,
the pressure stays constant after having been adjusted to the
correct value.
The pressure can rise above the nominal value when starting with
cold oil but will return to the normal value when the oil is heated.
A pressure gauge on the instrument panel indicates the lubricat-
ing oil pressure before the engine. The system includes three
pressure switches for low lubricating oil pressure connected to the
automatic alarm- and stop system (see chapter 23.).
The temperature can be checked from gauge on the instrument
panel before and after the oil cooler (chapter 01., section 01.2). A
temperature switch for high lubricating oil temperature is con-
nected to the automatic alarm system (see chapter 23.).
The speed governor has own oil system, see separate instruction
book.
The oil dipstick (8) is located at the middle of the engine.
Connections for a separator are provided on the oil sump at the
free end of the engine.
For taking oil sample the valve (14) is available after oil filter.
18 Lubricating Oil System 32-200052
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