MAINTENANCE PROCEDURES
222
WEAM009500
4.9.7.b
CHANGING THE COOLANT
CAUTION
q
The coolant must be changed every 2000 hours of operation or every 2 years, whichever occurs first.
WARNING
q
Soon after the machine has been stopped the coolant is very hot and under pressure and it may cause
serious burns; let the engine cool down until it reaches approximately 40÷45°C before changing the
coolant.
q
Slowly loosen the radiator cap, in order to release any residual pressure.
q
Oils, filters, the coolant and the battery are considered special waste and must be collected and dis-
posed of according to the regulations in force.
IMPORTANT
q
The change of the permanent coolant does not require any washing cycle for descaling the circuit.
1.
Open the engine hood and the radiator cover. For further
details, see paragraphs "3.2.6 ENGINE HOOD" and "3.2.7
RADIATOR COVER" .
2.
Loosen and remove the upper cap (1) of the radiator.
3.
Open the radiator drain valve (2), remove the drain plug (3)
on the engine block and let the fluid flow out, gathering it in a
container with suitable capacity. Drain the coolant tank (4)
while the fluid flows out.
4.
Close the drain valve (2), put back the plug (3) on the engine
block and fill the radiator with new fluid (see "4.4 FUEL,
COOLANT AND LUBRICANTS").
5.
Start the engine and let it run at high idling speed for a few
minutes; check the level again and top up before putting back
the upper cap (1).
RKA18180
Summary of Contents for PC26MR-3
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Page 19: ...SAFETY AND ACCIDENT PREVENTION 17 ...
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Page 171: ...MAINTENANCE 169 ...
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Page 227: ...TECHNICAL SPECIFICATIONS 225 ...
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Page 235: ...AUTHORISED EQUIPMENT 233 ...
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Page 252: ... 2008 KOMATSU UTILITY EUROPE S p A All Rights Reserved Printed in Europe 01 2008 ...