5 Maintenance Checking the filter cartridge Usually, it is required to check each air filter cartridge before it is re-installed. For this purpose, insert a into the cartridge and visu ally check the filter paper against the transmitted light. If you detect small holes or spots on which the paper is thin, the insert is defective and must be replaced. Check filter cartridges for damaged seals. NOTE Also new filter cartridges must be checked before they are assembled. Assembling the air filter cartridge 1. Check the safety filter for proper fit. 2. Insert the filter cartridge into filter housing in such a way that the seal of the insert locks firmly on the collar of the housing rear panel. 3.
Assemble the air filter cap. NOTE If the control lamp lights up again after a short time, you must replace both, the air filter cartridge and the safety filter (refer to chapter "Air filter, removing and re-installing the fil ter insert, checking and cleaning the filter insert" on page 5-46). 5-48 WA90-5 – VEAM270100 AE063690