IHI 55N3, Руководство по эксплуатации, Страница: 96 / 115

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MAINTENAN C E
COOLING SYSTEM COOLANT
* At operating temperature, the engine coolant
is hot and under pressure.
* Steam can cause personal injury.
* Change the coolant only after the engine has
been stopped and radiator cap is cool
enough to touch with your bare hand.
* Remove the radiator cap slowly to relieve
pressure.
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„ „ „
Change the Coolant
Coolant should be drained and replaced every
250 service hours or six months. However, when
adding “Long-Life-Coolant”, the drain period can
be extended to 2 years.
Drain the coolant earlier whenever the coolant is
dirty or foaming is observed.
1.Place the machine on the firm and level ground.
2.Loosen the radiator cap
c
slowly to relieve
pressure, and remove the cap.
3.Open the radiator drain valve
d
and allow the
coolant to drain into a container.
4.Remove the drain plug
e
allow the coolant to
drain into a container. Drain plug is located under
the injection pump on the front side of cylinder
body.
5.Close the drain valve and drain plug. Fill the
system with clean water and cleaning solution.
6.Start and operate the engine for 1/2 hour. Stop
the engine and drain the cleaning solution.
7.Flush the system with water, with the engine
stopped, until the draining water becomes clear.
8.Close the drain valve and drain plug. Fill the
system with clean water and operate the engine
for five minutes. Stop the engine and drain the
water.
9.Repeat step 7 several times, if necessary, until
the drained water becomes clear.
10.Add the coolant solution. See next page.
11.Operate the engine for five minutes with the
radiator cap off.
3-9 2 YEARS MAINTENANCE AND CHECKS
WARNING
Dra i n p l ug
2YEARS