6-6
520 Express Series
520 Express Series
DRAINING USED OIL FROM THE
ENGINES
To ensure the oil maintains proper viscosity
during the removal process, it is
recommended the operator run the engines
long enough to permit the engine block to
become warm - at least 140°F (60°C). Shut
the engines down and allow ample time for
the circulated oil to return to the oil pan.
Draining the Port Engine
1. Warm engine to at least 140°F (60°C),
then turn the engine OFF.
2. Insert the PVC wand of the drain/fill hose
into a container suitable for waste oil
collection. (Remember, it is a legal
requirement to dispose of waste oil in a
responsible manner.)
3. Loosen the oil filler cap on the engine or
remove the dip stick to allow air to enter
the crankcase.
4. Release the fail-safe lock device on the
pump/motor unit valve handle and direct
the arrow-shaped tip to PORT ENGINE.
5. Flip the motor control switch to the
DRAIN position. The pump will start
immediately. You should hear a
noticeable change in the sound (speed)
of the pump motor when the used oil
enters the pump.
6. Continue to operate the pump until there
is a noticeable change in the sound
(speed) of the pump motor, which is an
indication air is being drawn into the
crankcase oil hose and that the specified
crankcase is now empty. Oil is drained at
the rate of about one gallon each 22
seconds.
7. Return the pump motor control switch to
the OFF position when crankcase is
empty and place the fail-safe switch in
the OFF position.
Draining the Starboard Engine
1. Repeat each of the steps outlined in
Draining the Port Engine after directing
the arrow-shaped tip on the valve handle
to the STARBOARD engine.
2. Flip the motor control switch to the
DRAIN position.
3. Once the crankcase is emptied, return
the pump motor control switch to the
OFF position and place the fail-safe
switch in the OFF position.
Draining the Generator
(Models 946D and 946DB only)
1. Repeat each of the steps outlined in
DRAING THE PORT ENGINE after
directing the arrow-shaped tip on the
valve handle to the GENERATOR
engine.
2. Flip the motor control switch to the
DRAIN position.
3. Once the crankcase is emptied, return
the pump motor control switch to the
OFF position and place the fail-safe
switch in the OFF position.
Draining the Generator
(Models 946DT and 946DBT only)
1. Repeat each of the steps outlined in
DRAINING THE PORT ENGINE after
directing the arrow-shaped tip on the
valve handle to the GENERATOR
engine.
2. Treating the selector handle on the
externally mounted valve as a pointer,
point the tip of the handle toward the
hose barb connected to the generator.
3. Flip the motor control switch to the
DRAIN position.
4. Once the crankcase is emptied, return
the pump motor control switch to the
OFF position and place the fail-safe
switch in the OFF position. Return the
externally mounted valve handle to OFF
position.
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