Jungheinrich DFG 660 Operating Instructions Manual page 173

Check the coolant concentrate
Tools and Material Required
– Anti-freeze tester for coolants
Procedure
• Slowly unscrew the filler cap (223) from the expansion vessel (224).
• Check the anti-freeze content of the coolant with an anti-freeze tester.
NOTE
Incorrect coolant concentration can cause malfunctions
If there is insufficient anti-freeze content arrange for trained personnel to restore the
correct mix ratio.
• Screw the filler cap back on.
• Fit the rear bonnet again and snap it back into position.
Check the cooler and fan and clean if necessary
Procedure
Z
The cooling unit is located under the service panel (210).
• Open the service panel (210) completely.
• Clean the cooling unit carefully using compressed air without touching the cooling
multi-plates.
• Close the service panel.
CAUTION!
A damaged cooler and fan can be dangerous
Check the cooler and fan for damage. If the radiator or fan are damaged, do not
operate the truck until the damage has been rectified.
CAUTION!
A broken fan can be dangerous
Using a suitable tool, check and make
sure that the fan can move freely.
The fan must not touch the deflector.
Only start the motor when the cover is
closed.
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