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 (b) Align the lubricating oil system as
pressure pump is down for repairs, or for the transfer of
described in table 2-10 to accomplish the required function.
lubricating oil on or off the tug.
(c) This pump will start when the propulsion
(b) Align the system as described in table2-10 to
engine begins running.
accomplish the desired function.
(c) To start the pump, press the START button
on controller.
NOTE
CAUTION
The engine lubricating oil pressure pump
If pump controller trips from an
has a reversible impeller and delivers oil
overload, you must not reset or operate
under pressure to engine while it is
the pump, until cause of overload has
turning either ahead or astern.
been determined and the defect
(5) Lubricating oil purifier system.
corrected.
(a) This system consists of a centrifugal disc
type oil purifier with flange mounted pumps and motor, a
(d) To secure the pump, press STOP button on
thermostatically controlled low watt density type electric
the controller, then return valves moved in step (b) above to
heater; filters, and an automatic air vent. It is located on
their original position.
port side of the engine room of forward bulkhead. The
(4) Engine oil pressure pump.
controller is mounted on bulkhead and includes a magnetic
(a) This pump is driven by the propulsion engine
switch for motor and heater, start-stop push switch, and
pump drive (accessory drive) and is located at forward end of
protection for overload, or low voltage.
the engine. It supplies engine with lubricating oil under
(b) Close valve (5, fig. 2-12) and open valve (2).
pressure.
2-31
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