Kubota RTV520, Руководство оператора

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If it freezes, coolant can damage the cylinders and
radiator. If the ambient temperature falls below 0
℃
(32
℉
) or before a long-term storage, let out cooling
water completely, or mix fresh water with long-life
coolant and fill the radiator and recovery tank with the
mixture.
1. Long-life coolant (hereafter LLC) comes in several
types. Use ethylene glycol (EG) type for this engine.
2. Before employing LLC-mixed cooling water, fill the
radiator with fresh water and empty it again. Repeat
this procedure 2 or 3 times to clean up the inside.
3. Mixing the LLC
a. Put the LLC in cooling water in the percentage
(%) for a target temperature. When mixing, stir it
up well, and then fill into the radiator.
b. The procedure for the mixing of water and
antifreeze differs according to the make of the
antifreeze and the ambient temperature. Refer
to SAE J1034 standard, more specifically also
to SAE J814c.
IMPORTANT :
• When mixing the antifreeze with water, the
antifreeze mixing ratio must be less than
50%.
Vol %
Antifreeze
Freezing point Boiling point
*1
℃ ℉ ℃ ℉
40 -24 -12 106 222
50 -37 -34 108 226
*1 At 1.013 x 10
5
Pa (760 mmHg) pressure (atmospheric).
A higher boiling point is obtained by using
a radiator pressure cap which permits the
development of pressure within the cooling
system.
4. Adding the LLC
a. Add only water if the mixture level reduces in
amount by evaporation.
b. If there is a mixture leak, add the LLC of
the same manufacturer and type in the same
mixture percentage.
NOTE :
• Never add any long-life coolant of different
manufacturer. (Different brands may have
different additive components, and the
engine may fail to perform as specified.)
5. When the LLC is mixed, do not employ any radiator
cleaning agent. The LLC contains anti-corrosive
agent. If mixed with the cleaning agent, sludge may
build up, adversely affecting the engine parts.
6. Kubota's genuine long-life coolant has a service life
of 2 years. Be sure to change the coolant every
2000 hours or every 2 years whichever comes
faster.
NOTE :
• The previous data represents industry
standards that necessitate a minimum glycol
content in the concentrated antifreeze.
EVERY 1 YEAR
1. Checking fuel line
WARNING
To avoid serious injury or death:
• Be sure to stop the engine and remove the key
when attempting to make the following checks
and changes.
• Check the fuel lines periodically.
The fuel lines are subject to wear and aging.
Fuel may leak out onto the running engine,
causing a fire.
IMPORTANT :
• When the fuel line is disconnected for
maintenance or repair, close both ends of the
fuel line with a piece of clean cloth or paper to
prevent dust and dirt from entering. In addition,
particular care must be taken not to admit dust
and dirt into the fuel pump. Entrance of even a
small amount of dust or dirt cause premature
wear and malfunction of the fuel pump and
injector components.
The fuel line connections should be checked annually
or every 100 service hours, whichever comes first.
The fuel line is made of rubber and ages regardless of
service period.
1. Park the vehicle on a flat surface and raise the
cargo bed.
PERIODIC SERVICE EVERY 1 YEAR
74
RTV520