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18
PERIODIC SERVICE
BChanging coolant
1. To drain coolant, always open both drain cocks and
simultaneously open the radiator cap as well. With
the radiator cap kept closed, a complete drain of
water is impossible.
2. Remove the overflow pipe of the radiator pressure
cap to drain the recovery tank.
3. Prescribed coolant volume (U.S.gallons)
Models
D1105-E3BG, D1005-E3BG,
D1305-E3BG
V1505-E3BG
A Coolant quantities shown are for standard radiators.
4. An improperly tightened radiator cap or a gap
between the cap and the seat quickens loss of
coolant.
5. Coolant (Radiator cleaner and anti-freeze)
Season
Summer
Winter (when temperature
drops below 0°C (32°F)) or
all season
BRemedies for quick decrease of coolant
1. Check any dust and dirt between the radiator fins
and tube. If any, remove them from the fins and the
tube.
2. Check the tightness of the fan belt. If loose, tighten it
securely.
3. Check the internal blockage in the radiator hose. If
scale forms in the hose, clean with the scale inhibitor
or its equivalent.
Quantity
3.1 L (0.82 U.S.gals.)
4.0 L (1.06 U.S.gals.)
Coolant
Pure water and radiator
cleaner
Pure water and anti-freeze
(See "Anti-freeze" in
"RADIATOR" section.)
BChecking radiator hoses and clamp
CAUTION
To avoid personal injury:
A Be sure to check radiator hoses and
hose clamps periodically. If radiator
hose is damaged or coolant leaks,
overheats or severe burns could
occur.
Check to see if radiator hoses are properly fixed every
200 hours of operation or 6 months, whichever comes
first.
1. If hose clamps are loose or water leaks, tighten hose
clamp securely.
2. Replace hoses and tighten hose clamps securely, if
radiator hoses are swollen, hardened or cracked.
Replace hoses and hose clamps every 2 years or
earlier, if checked and found that hoses are swollen,
hardened or cracked.
BPrecaution at overheating
Take the following actions in the event the coolant
temperature is nearly or more than the boiling point,
what is called "Overheating". Take these actions if the
engine's alarm buzzer sounds or the alarm lamp lights
up.
1. Stop the engine operation in a safe place and keep
the engine unloaded idling.
2. Do not stop the engine suddenly. Stop it after about
5 minutes of unloaded idling.
3. If the engine stalls within about 5 minutes of running
under no load, immediately leave and keep yourself
away from the machine. Do not open the hood and
any other part.
4. Keep yourself and others well away from the engine
for further 10 minutes or while the steam blown out.
5. Checking that there gets no danger such as burn,
get rid of the causes of overheating according to the
manual, see "TROUBLESHOOTING" section. And
then, start again the engine.
BCleaning radiator core(outside)
If dust is between the fin and tube, wash it away with
running water.
BCleaning the radiator
Clean the cooling system of the engine every 500 hours.
In addition, clean it before adding anti-freeze and before
stopping use of anti-freeze.
A Do not clean radiator with firm tools such as spatulas
or screwdrivers. They may damage specified fin or
tube. It can cause coolant leaks or decrease cooling
performance.
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