Maintenance work
T01127en.fm 58
Prefilter (foam with air cleaner oil) (only BTS 1140L3)
Replacement (after cutting with excessive dust formation):
• daily
• or at least after 4 hours of operation
• or at least after filling the tank 8 times
• or at least after using 8 liters of fuel mixture
Replacement (after wet cutting/after cutting steel):
• weekly
• or at least after 25 hours of operation
• or at least after filling the tank 50 times
• or at least after using 55 liters of fuel mixture
Knead the foam air cleaner in the packaging prior insertion to ensure
distribution of the oil. Remove the packaging afterwards.
Align the prefilter with the cover holder when inserting it into the filter
cover, then press it into the filter cover (5). The prefilter must be flush
with the cover holder in all areas and pressed in tightly.
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