Maintenance
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10.4 Internal Heat Recovery Maintenance (option W2 / W3)
Pre---condition: Machine switched off.
Mains isolator locked off
Machine cooled down.
Deposits in the heat exchanger in machines with heat recovery systems can adversely af-
fect heat transfer.
Check the heat exchanger regularly for leaks and contamination. Frequency of checking is
dependant on the characteristics of the heat transfer medium.
Contamination
Have an authorised KAESER service agent clean the heat exchanger as soon as a
pressure drop in the heat transfer medium is detected.
Leakage
If a leak occurs, cooling oil can flow into the heat transfer medium as pressure the cooling
oil circuit is generally higher.
Check the heat exchanger visually for leaks.
Have an authorised KAESER service agent check the heat exchanger for internal leaks
at least once a year.
10.5 Air Filter Maintenance.
Material: Compressed air for blowing out
Spare parts (as required)
Pre---condition: Machine is switched off
Mains disconnect is locked out
Machine is cooled down.
Fig. 22 Air filter maintenance.
1 Nut 3 Cover
2 Air filter cartridge 4 Nut
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