Checking The Fuel Filter - Kubota BX231D Operator's Manual

SERVICE EVERY 100 HOURS
IMPORTANT :
• The air cleaner uses a dry element. Never apply
oil to the air cleaner.
• Do not run the engine with the filter element
removed.
• Align the arrow marks when reinstalling the
cover. If the cover is improperly fitted, dust
passes by the baffle and directly adheres to the
air-cleaner-element.
1. Remove the air-cleaner-cover and air-cleaner-
element.
a. Undo the hook.
b. Turn the air-cleaner-cover clockwise and detach
it.
2. Clean the air-cleaner-element.
When dry dust adheres to the air-cleaner-element,
blow compressed air from the inside, turning the
air-cleaner-element. Pressure of compressed air
must be the value shown in the following table.
Pressure of compressed air
3. When carbon or oil adheres to the air-cleaner-
element, follow the following procedure.
a. Soak the air-cleaner-element in detergent for
the following minutes.
Soaking the air cleaner element in detergent
b. Then wash it several times in water.
c. Rinse the air-cleaner-element with clean water.
d. Dry the air-cleaner-element naturally.
e. After the air-cleaner-element is fully dried,
inspect inside of it with a light and check if it
is damaged or not.
Refer to the instructions on the label attached to
the case.
4. Replace the air-cleaner-element as the following
table.
Replacing the air cleaner
element
Evacuator valve
1. Open the evacuator valve once a week under
ordinary conditions or daily when used in a dusty
place to get rid of large particles of dust and dirt.
NOTE :
• Check to see if the evacuator valve is blocked
with dust.
See the following figures.
BX231D
2
Below 205 kPa (2.1 kgf/cm , 30 psi)
For 15 minutes
Every 1000 hours or every 1 year
whichever comes faster
BX231D
BX261D
(1) Element
(2) Cover

3. Checking the fuel filter

WARNING
To avoid serious injury or death:
• Stop the engine and remove the key before
checking the fuel lines and the fuel filter.
• Check the fuel lines periodically. The fuel lines
are subject to wear and ageing. Fuel may leak
out onto the running engine, causing a fire.
IMPORTANT :
• When the fuel
maintenance or repair, plug both ends of the
fuel line with a clean plug of suitable size
to prevent dust and dirt from entering. Take
particular care of the fuel filter in order to
avoid dust and dirt getting into the fuel system.
Entrance of dust and dirt causes malfunction of
the fuel pump.
The fuel line is the rubber product and ages regardless
of service period.
1. Inspect the fuel filter.
PERIODIC SERVICE
(3) Evacuator valve
line is disconnected for
95