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OPERATION
2.
Check for water and sediment.
It is possible to judge the water level and amount of sedi-
ment by looking through transparent cup (4).
NOTICE
•
If the water accumulated in transparent cup (4)
freezes, the water separator caution lamp (6) may
not light up. After the engine is started, as the
temperature around fuel prefilter increases, the
frozen water melts and the water separator cau-
tion lamp (6) may suddenly light up. In cold sea-
son, even if the water separator caution lamp (6) is
not lit, drain the water frequently.
•
If the water inside transparent cup (4) freezes, wait
until the frozen water has melted completely, then
follow the procedures to drain the water.
3.
Place a container under drain hose (5) to receive the wa-
ter.
4.
Loosen plug (3) and drain the water.
5.
When fuel starts to be drained from drain hose (5), tighten
plug (3) immediately to stop draining.
Tightening torque: 0.2 to 0.45 Nm {0.02 to 0.046 kgm}
REMARK
•
On this machine, a sensor is installed to detect if water accumulates in transparent cup (4).
When the water separator caution lamp (6) lights up in red on the machine monitor, it indicates that
water is accumulated in transparent cup (4).
In this case as well, use the procedure above to drain the water.
•
When only the water separator caution lamp lights up, it lights up at position (6).
If other caution lamps also light up at the same time, the water separator caution lamp lights up at a
different position.
REMARK
If drain plug (3) is hard to turn, apply grease to O-ring (7) of plug (3) according to the following procedure.
1)
Place a container under the drain hose (5) to catch the
fuel.
2)
Loosen plug (3) and drain all the fuel and sediment
through drain hose (5).
3)
Check that nothing more comes out from drain hose
(5), then remove plug (3).
4)
Apply a suitable amount of grease to O-ring (7). At this
time, take care that grease will not stick to water drain
port (a) and threaded portion of the plug.
5)
Tighten plug (3) by hand until it stops.
6)
Remove the container to catch the drained fuel.
•
If the transparent cup (4) is so dirty that the inside cannot be seen, clean the transparent cup (4)
when replacing the filter.
•
In the case that the plug (3) has been removed during the cleaning work, apply grease to O-ring
(7) and tighten with your fingers until it stops.
MACHINE OPERATIONS AND CONTROLS
3-155
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