Kubota CKTGL11000, Operator'S Manual, Page: 43 / 62

31 PERIODIC SERVICE
ENGL
ISH
2. If the radiator is provided with a reserve tank, check
the coolant level of the reserve tank. When it is
between the "FULL" and "LOW" marks, the coolant
will usually last for one day’s work.
3. When the coolant level drops due to evaporation,
add only 50/50 coolant up to the full level.
4. Check to see the two drain plug; one is at the
crankcase side and the other is at the lower part of
the radiator as shown below.
A If the radiator cap has to be removed, proceed with
caution and securely retighten the cap.
A
If coolant is leaking, consult your local KUBOTA
Dealer.
A Make sure that muddy or sea water is not used in
the radiator.
A
Use clean, fresh water and 50% anti-freeze to fill the
recovery tank.
A Do not refill reserve tank with coolant over the
"FULL" level mark.
A
Be sure to close the radiator cap securely. If the cap
is loose or improperly closed, coolant may leak out
and decrease the level quickly.
A
When coolant is added, coolant level may drop the
first time the engine is started. Stop the engine, and
add coolant if necessary.
C
Changing coolant
1. To drain coolant, always remove both drain plugs
and simultaneously open the radiator cap as well.
With the radiator cap kept closed, the coolant will not
drain completely. Dispose of used coolant properly.
2. Remove the overflow pipe of the radiator pressure
cap to drain the reserve tank.
3. Prescribed coolant volume
L (U.S.qts.)
include reserve tank 0.6 L (0.63 U.S.qts.)
4. An improperly tightened radiator cap or a gap
between the cap and the seat increases loss of
coolant.
5. Coolant (Water and anti-freeze)
All seasons: Pure water and anti-freeze (See "Anti-
freeze" in "Radiator" section.)
C
Remedies for Rapid Coolant Loss
1. Check for dust and dirt between the radiator fins and
cooling tube. Clean the fins and the tubes as if
necessary.
2. Check the tension of the fan belt. If loose, tighten it
securely.
3. Check the internal blockage in the radiator cooling
tubes. If scale forms in the tubes, clean with the
scale inhibitor or its equivalent.
(1) Reserve tank
(2) Cap (A) "FULL"
Upper line 0.6 L
(0.63 U.s.qts.)
(B) "LOW"
(1) Coolant drain plug (Radiator)
(2) Radiator
(3) Coolant drain plug (Engine)
Model Capacity
GL6000, GL7000
[Engine model : Z482]
3.7 (3.9)
GL9000, GL11000
[Engine model : D722]
4.1 (4.3)