Air Bleeding The Fuel System; Cleaning The Fuel Filter Element - Kubota SQ-1120 Operator's Manual

BAir Bleeding the Fuel System
To avoid personal injury;
A DO NOT bleed a hot engine as this
could cause fuel to spill onto a hot
exhaust manifold creating a danger
of fire.
Air bleeding of the fuel system is required if;
A after the fuel filter and pipes have been detached and
refitted;
A after the fuel tank has become empty; or
A before the engine is to be used after long storage.
[PROCEDURE]
1. Fill the fuel tank with fuel.
2. Set the fuel lever to "OPEN" position.
3. Turn the key to "ON" for 30 to 40 seconds.
(1) Main switch (Key)
A With the key switch at "ON", the fuel electro-
mechanical pump can be activated automatically to
vent the air in the fuel pipes, hoses and filter.
A Always turn the key to "OFF" when air is vented and
the engine is not used, or it will cause the battery to
discharge.
(A) "ON"
BCleaning the Fuel Filter Element
[Engine model : D1703-EBG, V2203-EBG]
Replace the fuel filter element every 500 hours of use,
using the following procedure.
1. Close the fuel filter lever.
(1) Fuel filter lever
(2) Fuel filter pot
2. Remove the top cap, and rinse the inside with diesel
fuel.
3. Take out the element, and replace the element.
4. After cleaning, reinstall the fuel filter to keep dust and
dirt out.
5. Air-bleed the fuel line.
6. Properly dispose of used fuel filter element.
A Entrance of dust, water and dirt can cause a
malfunction of the fuel injection pump and the injection
nozzle. Wash the fuel filter cup periodically.
(1) O ring
(2) Filter element
(3) Spring
(4) Filter bowl
(5) Screw ring
PERIODIC SERVICE
(A) "CLOSE"
(B) "OPEN"
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