
SF310,370
66
27. RADIATOR
IMPORTANT:
•
The radiator screen and radiator clogged with dust or
dirt causes overheating of the engine due to deteriorat-
ed cooling efficiency of the radiator.
The radiator and radiator screen should be checked for
clogging everyday before operation.
•
When mowing dead grass or operating under extreme-
ly dusty conditions, check the radiator screen and radi-
ator several times a day to avoid clogging.
The radiator,1, is located behind the engine and the
radiator screen,2, is located between cooling fan and
the radiator.
a.
The radiator screen is held on the left side of the radia-
tor with two wing blots. Remove the wing bolts and
draw out the radiator screen.
b. Dust off the radiator screen with a soft brush.
c.
The clogged radiator fins should be cleaned by apply-
ing compressed air or water from both sides alterna-
tively.
d.
Re-install the radiator screen and tighten the wing
bolts.
IMPORTANT:
•
Avoid using excessively compressed air or water,
which may deform the cooling fan blades.
•
Avoid applying water directly to the wiring and electric
apparatus.
•
After washing the radiator using water from a tap, let it
dry by itself.
28. COOLANT REPLACEMENT
WARNING: Never attempt to remove the radi-
ator cap during or just after operation, or
pressurized vapor and hot water will gush
out, which may cause burns. So wait until the
engine cools down sufficiently.
The drain plug of the engine coolant is located under the
reserve tank of the left side of the engine.
a. Place a coolant receiver under the drain plug,1.
b.
Remove the radiator cap,2, and the drain plug to let all
coolant drain out of the radiator and engine cylinder
block.
c.
When all coolant completely drained out, wash the
inside of the radiator and tighten the drain plug securely.
(1) Radiator
(2) Radiator screen
(1) Drain plug
2
1
FIG. 107
1
FIG. 108
Summary of Contents for SF310
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