IHI 17VX3 - Change the Coolant

MAINTENANCE
2 YEARS MAINTENANCE AND CHECKS
COOLING SYSTEM COOLANT
,-------- --------
17VX3
2 YEARS
* 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.
• 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 Q) slowly to relieve pressure, and
remove the cap.
3. Open the radiator drain plug Q) and allow the coolant to drain
into a container.
4. Remove the drain plug Q) 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 Q) and drain plug Q). 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 Q) and drain plug Q). 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
Q)
off.
4-10-1