Wacker Neuson HI 770XHD, Operator'S Manual

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Genset Maintenance HI 770XHD
Continued from the previous page.
Changing
coolant Perform the procedure below to change the coolant.
1. Stop the engine. Allow it to cool at least 30 minutes after stopping.
2. Clean the radiator.
Note: In the interests of environmental protection, place a plastic sheet and a
container under the machine to collect any liquid which drains off. Dispose of this
liquid in accordance with local environmental protection laws.
3. Drain the reserve tank.
4. Slowly open the radiator cap (b) and allow any residual pressure to escape,
then remove the cap.
5. Connect separate drain hoses to the engine drain valve (c) and to the radiator
drain valve (d) . With an appropriate container(s) ready to catch the coolant,
open both the engine drain valve and the radiator drain valve simultaneously.
Drain the coolant.
6. Close both the engine drain valve and the radiator drain valve.
7. Fill the radiator with a 50/50 mixture of clean water and anti-freeze.
8. Reinstall the radiator cap.
9. Start the engine and allow it to run for approximately 1 minute. Stop the engine.
10.Check the amount of coolant in the radiator and add more if necessary.
Result The radiator has now been serviced.
b
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c
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d