Sharp R-440/540 Betreibershandbuch Seite 123

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918496/GP0313 115
Draining/Refilling Cooling System
1. Perform the “Mandatory Safety Shutdown Procedure” on page 10.
2. Allow engine to cool.
3. Open engine cover.
Do not remove radiator cap when the coolant is
hot. Serious burns may occur.
4. Slowly loosen radiator cap (K, Fig.
80) and allow pressure to escape.
Remove cap.
5. Remove the engine access panel. See
“Changing Engine Oil and Filter” on
page 110, step 4.
6. Position a collection container, with a
capacity of at least 8 L (2 gal.), under-
neath the radiator drain.
7. Open radiator drain valve (L, Fig. 81).
Drain valve is located at bottom of
radiator, above frame member. The
drain valve opening points toward the
front of the machine.
Important: Drain the coolant into the
container. Always dispose of coolant
according to environmental laws. DO
NOT pour onto the ground or down a
drain.
8. Close radiator drain valve.
9. Fill the radiator using a low-silicate
ethylene glycol-based coolant, mixed
with quality water and supplemental
coolant additives (SCAs) suitable for
heavy-duty diesel engines. See the
engine manual for additional information.
10. Replace engine access panel.
11. Reinstall radiator cap and tighten securely.
12. Complete all steps in “Checking Coolant Level” on page 114.
13. Run the engine until it is at operating temperature.
14. Perform the “Mandatory Safety Shutdown Procedure” on page 10.
15. Allow the engine to cool.
16. Open the engine cover.
17. Check the coolant level in the expansion reservoir. The reservoir must be 1/3
to 1/2 full for a cold engine and 2/3 to 3/4 full for a hot engine.
WARNING
Figure 80 – Radiator Cap
K
Figure 81 – Cooling System
AL 500 Series shown
(other machines similar)
L
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