DV11
Operation and Maintenance
33
Technical Information
Printed in Mar. 2005 PS-MMA0608-E1A
2.3.22. Coolant pressure cap
z Check the pressure valve opening
pressure using an expansion tank
cap tester.
z Replace the filler cap assembly if
the measured valve does not reach
the specified limit.
NOTE :
Because it is dangerous to open
the pressure cap quickly when
coolant is hot, after lowering the
inside pressure of the tank by slow-
opening at first open it fully.
2.3.23. Cooling water
z Regarding the cooling water that is to be used for engine, the soft water not the
hard water must be used.
z The engine cooling water can be used diluting it with anti-freezing solution 40%
and the additive for rust prevention (DCA4) 3 5 %.～
z The density of above solution and additive must be inspected every 500 hours to
maintain it properly.
NOTE:
The proper density control of anti-freezing solution and rust preventing
additive will be able to prevent the rusting effectively and maintain the stable
quality of engine.
For the improper control might give the fatal damage to the cooling water
pump and cylinder liners, detail care is needed.
z Since DV11 engine cylinder liner is wet type, particularly the cooling water control
should be applied thoroughly.
Drain coc
To Next Page
Loading...
Need help?
General
