EF393T OM
52
5-3. Replacing fuel filter (cartridge type)
Be sure to replace the fuel filter (cartridge type) regularly.
Replace
Every 300 hours
(1) Apply lubricating oil to the rubber ring of fuel filter.
(2) Install it surely.
IMPORTANT
Be sure to use a genuine filter.
The allowance of plunger and the barrel in fuel injection pump
is very severe. If the filtering efficiency is low, it may cause a
trouble in fuel injection pump, such hard starting.
(B) Fuel filter
5-4. Bleeding fuel lines of air
If the engine stops due to lack of fuel or if the fuel strainer
element or fuel piping has ever been detached for
maintenance purpose, bleed air by the following procedure:
(1) Fill up fuel tank if engine stop by short of fuel.
(2) Turn the fuel cock to the "O" position (Open), and wait for
approximately ten seconds.
(3) See the bowl of water separator is filled with fuel and fuel
cock is open.
(4) Pull accelerator lever forward to the maximum speed
position.
(5) Turn the main switch in the start position and run the
starter motor for 5 - 10 seconds.
(6) If the engine did not start, run the starter motor again.
When the engine starts, air bleeding is finished.
IMPORTANT
Never run the starter motor more than 10 seconds. It may
cause breakage of starter motor. If you cannot start engine
within 10 seconds, restart engine after 2-5 minutes
.
(A) Water separator (B)Fuel cock
(A) Accelerator lever
(F) Increase speed (higher speed)
