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Operation
8.8 Faults
8.8.5
Water cooling faults
The following table shows the possible causes of and remedial measures for faults on water-
cooled machines.
Table 8-4
Cooling system faults
↓ Overheating
↓ Water leaking
Possible causes of faults
X
Reduced cooling
X
Cooling water flow rate too low
X
Inlet temperature too high
X
Cooling water supply switched off
X
Cooling water contains too many or unsuit‐
able antifreeze and corrosion-protection
agents
X
Leaks in the cooling system
X
Defective cooling water connection
96
Remedial measures
● Check the cooling water flow, increase the amount of cooling water
if necessary.
● Clean the cooling system, e.g. by briefly increasing the cooling
water flow rate or by adding suitable cleaning agents.
Consult the manufacturer. If the specified cooling water quality is ob‐
served, the cooling system is maintenance-free.
Set the correct upstream temperature.
Switch on the cooling water supply.
Use cooling water of the agreed quality.
Consult the manufacturer.
Find the leak and seal it.
SIMOTICS HT Series HT-direct 1FW4...1......A
Operating Instructions 11/2018
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