Karcher HDS 13-80 De Tr1 - Manual (Page 35)

19 PERIODIC SERVICE
EN
GLISH
B Changing 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)
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)
B Remedies 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.
B Checking radiator hoses and clamp
bands
To avoid personal injury:
A
Be sure to check radiator hoses and
clamp bands 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.
B Precaution 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 the engine again.
B Cleaning radiator core(outside)
If dust is between the fin and tube, wash it away with
running water.
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.
Models Quantity
D1503-M-E3,D1703-M-E3 5.5 L (1.45 U.S.gals.)
D1803-M-E3 5.8 L (1.53 U.S.gals.)
V2003-M-E3,V2203-M-E3 8.1 L (2.14 U.S.gals.)
V2403-M-E3,V2403-M-T-E3 8.4 L (2.22 U.S.gals.)
Season Coolant
Summer
Pure water and radiator
cleaner
Winter (when temperature
drops below 0 C (32 F))
or all season
Pure water and anti-freeze
(See "Anti-freeze" in
“RADIATOR” section.)