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3-3-2 Instruction for Fuel Source Changeover Device (Three-Way valve)
(1) Setting Procedure for Separate Tank
① When the machine is shipped from factory, the three way valve is sets as shown in the
Fig.10. In the case that fuel source is the mounted fuel tank, run the machine without
changing the setting of the piping and valve lever.
② Where fuel source is a separate tank placed outside the machine, disconnect the tank
connection plug and change the connection as shown in the Fig.11. And also switch the
lever of three-way valve to the direction of the arrow mark as shown in the Fig.12.
(2) Caution on Setting
① For the piping, use oil-resistant hose of 8 to 10 mm internal diameter. Under Cold environ-
ment, use the hose of lager diameter.
② Install the separate fuel tank as near the machine as possible.
③ Reconnect the piping for the separate tank while the lever of three-way valve is unswitched
as shown in the Fig.10. Switch the lever after completing the reconnection work.
④ Set the suction end in the separate tank at the position of 15 to 20 mm upper than the
bottom level (as shown in Section-A of the Fig.11), so that water or sediment may not
come into the suction.
⑤ While feeding the fuel into the separate tank, do not allow water or dust to come in.
Fig. 10 Fig. 11 Fig. 12
3-4 Starting
1. Insert the key in the starter switch. Turn the key to RUN and the PREHEAT LAMP lights up.
When the lamp goes off, turn the key to START. The switch automatically returns to RUN. If the
key does not automatically return to RUN, manually return it. Otherwise, the starter motor might
be damaged. The duration of preheating differs according to the temperature of cooling water.
And if the temperature of cooling water is high enough, the preheat lamp does not light because
no preheating is required.
• Do not engage the starter for more than 10 seconds at a time; if the engine does not fire, wait
2 minutes before restarting.
• Consult your sales distributor if starting is in extremely cold conditions.
• If the engine would not start after several tries, check whether the fuel level is too low, air is
not bled sufficiently or the battery is discharged.
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