OPERATING INSTRUCTIONS RH RH170 Inspection and servicing Safety filter element, replace Replace the safety filter elements (7, Fig. 3-52:) after 1000 operating hours or 3 cleaning cycles; after one year of operation at the latest. Never clean the safety filter element, but always renew.
Remove main filter element (5, Fig. 3-53:) as described above. Check the vacuum indicator (6, Fig. 3-52: resp. arrow Fig. 3-54:) whether - the green spot is visible; in this case the safety filter must not be replaced - the green spot is not visible; in this case the safety filter must be replaced.
Fig. 3-52:
Unscrew vacuum indicator (6) and withdraw safety filter element (7). Install the new safety filter element and a cleaned or a new main filter element.
Fig. 3-53:
Fig. 3-54:
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BA RH170(3 725 031.00)-EN
