Indicator light (red) – 3rd control circuit, continuous operation (option)

3.21Air filter

Checking air filter contamination

A

B

C

Maintenance display B on the filter housing monitors the filter cartridge. The dust is removed by squeezing discharge slot E of the dust valve. ☞ Check dirt as follows: •Stop the diesel engine and remove the ignition key •Apply the parking brake •Open the engine cover •Squeeze the discharge slot of dust valve E and remove hardened dust

E Caution!

Replace the filter cartridge if the red mark C in maintenance display B is visible! ☞ Replace the filter cartridge the first time at 500 service hours at the latest, then at least once a year or every 1500 service hours

Notice!

For applications in dusty environment, the air filter is fitted with an extra safety cartridge F. Do not clean the safety cartridge – replace it every third time maintenance is performed on the filter!

D

F Caution!

Filter cartridges degrade prematurely when in service in acidic air for longer periods of time! ☞ Replace filter cartridge D and safety cartridge F at the latest after 500 service hours

Fig. 55: Air filter – dust valve