87PERIODIC SERVICE OF THE TRACTOR
BAnti-Freeze
If cooling water freezes, it can damage the cylinders and
radiator. It is necessary, if the ambient temperature falls
below 0 , to remove cooling water after operating or to
add anti-freeze to it.
1. There are two types of anti-freeze available; use the
permanent type (PT) for this engine.
2. Before adding anti-freeze for the first time, clean the
radiator interior by pouring fresh water and draining it
a few times.
3. The procedure for mixing of water and anti-freeze
differs according to the make of the anti-freeze and the
ambient temperature, basically it should be referred to
SAE J1034 standard, more specifically also to SAE
J814c.
4. Mix the anti-freeze with water, and then fill the radiator.
D At 760mmHg pressure (atmospheric). A higher boiling
point is obtained by using a radiator pressure cap
which permits the development of pressure within the
cooling system.
A The above data represents industry standards that
necessitate a minimum glycol content in the
concentrated anti-freeze.
A When the cooling water level drops due to
evaporation, add water only. In case of leakage, add
anti-freeze and water in the specified mixing ratio.
A Anti-freeze absorbs moisture. Keep unused anti-
freeze in a tightly sealed container.
A Do not use radiator cleaning agents when anti-freeze
has been added to the cooling water. (Anti-freeze
contains an anti-corrosive agent, which will react with
the radiator cleaning agent forming sludge which will
affect the engine parts.)
BReplacing Radiator Hose (Water pipes)
Replace the hoses and clamps.
(See "Checking Radiator Hoses and Clamps" in "EVERY
200 HOURS" in "PERIODIC SERVICE OF THE
TRACTOR" section.)
BReplacing Power Steering Hose
Consult your local KUBOTA Dealer for this service.
BReplacing Fuel Lines
Consult your local KUBOTA Dealer for this service.
BReplacing Engine Breather Hose
Consult your local KUBOTA Dealer for this service.
BReplacing Intake Air Line
Consult your local KUBOTA Dealer for this service.
SERVICE AS REQUIRED
BBleeding Fuel System
Air must be removed:
1. When the fuel filter or lines are removed.
2. When the tank is completely empty.
3. After the tractor has not been used for a long period of
time.
C Bleeding procedure is as follows:
1. Fill the fuel tank with fuel.
2. Turn the key switch to "ON" position for about 30
seconds. Doing so allows fuel pump to work and pump
air out of the fuel system.
3. Start the engine and run for about 30 seconds, and
then stop the engine.
Vol %
Anti-freeze
Freezing point Boiling point*
40
50
-24
-37
106
108
(1) Fuel pump
(2) Fuel filter
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