6-20 DK651/751/801/901
PRECAUTION AT OVERHEATING
Take the following actions in the event of
engine “overheating”, an event that oc-
curs when the engine coolant tempera-
ture is equal to or greater than it’s boiling
point.
1. Stop the machine operation in a safe
place and keep the engine unloaded
idling.
2. Don’t stop the engine suddenly, but
stop it after about 5 minutes of un-
loaded idling.
3. Keep yourself well away from the
machine for another 10 minutes or until
the steam has stopped blowing out of
the engine.
4. Allow the engine to cool sufficiently,
before servicing the engine. Then fol-
low the manual’s “ Troubleshooting”
section to find and repair the cause of
the overheating. Do not start the en-
gine again until all repairs are made.
Belt deflection should be
10 to 12 mm (0.394 to 0.
472 in.) when pressing the
center point of belt with
the force of 10 kgf.
A/C belt
tension
Check to see if radiator hoses are prop-
erly fixed every 200 hours of operation
or six months, whichever comes first.
1. If hose clamps are loose, or water
leaks, tighten the clamps securely.
2. Check radiator hoses. If hoses are
swollen, hardened, or cracked, re-
place both the hose and the related
clamps, and tighten securely.
Replace hoses and hose clamps every 2
years or earlier if checked and found that
hoses are swollen, hard ened or
cracked.
(1) Radiator Hoses (2) Clamp
CHECKING RADIATOR HOSE AND
CLAMP
C86O627A
EVERY 200 HOURS
REPLACING HYDRAULIC OIL &
TRANSMISSION OIL FILTER
Look at page 6-12.
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