Kaeser Portable Compressors (Mobilair) M27

Notice: The fuel filter cartridge is a wear part and must be replaced at regular intervals. See maintenance schedule, chapter 10.2.

Turn the old fuel filter cartridge in the direction of the arrow (6) in order to loosen it.

Remove the old fuel filter cartridge.

Clean the fuel filter head and sealing face.

Smear diesel fuel on the gasket of the new fuel filter cartridge.

Set the new fuel filter cartridge into installation position.

Turn the new fuel filter cartridge clockwise using only hand force until the gasket fits tightly on the sealing surface.

Tighten the new fuel filter cartridge by hand force.

Check if the venting screw on the fuel filter head is tightened.

Emptying the Fuel Water Separator

Place a receptacle under the water separator fuel filter cartridge

Loosen the venting screw (2) on the fuel filter head

Loosen the hand wheel (4) to open the drain pipe

Drain separated water and dirt particles into the receptacle

Tighten the hand wheel to close the drain pipe

Note: If the venting screw is open, air will continuously flow into the fuel system during the subsequent ventilation process

Connect the negative cable to the battery

Warning: This inspection requires trained personnel!

Authorized KAESER service representative contacted

Sign off on the generator bearings inspection

Check engine air filter maintenance indicator. Air filter maintenance is necessary when the yellow piston inside the maintenance indicator reaches the red zone.

Check the engine oil level. Pull out the oil dipstick, wipe it clean and reinsert it. Pull out the oil dipstick once more and read off the oil level.

Check the engine coolant level. The coolant level in the engine cooling circuit must be checked daily prior to start-up. The level is checked on the coolant expansion tank.

Check the level of coolant in the coolant expansion tank. Top off when the coolant level falls below the minimum check mark.

Check the compressor air filter maintenance indicator. Checking contamination of the air filter. Air filter maintenance is necessary when the yellow piston inside the maintenance indicator reaches the red zone.

Check the cooling oil level. The oil level is checked at the oil separator tank filling port. Oil should be visible in the port when the filler plug is removed.

Check the lighting system's function.

Sign off on the daily compressor maintenance

Check the level in the lubricant container

Is the oil level in the upper third of the dipstick?

Is the oil level below the required filling level?

Is the condensate collecting in the filter housings blown out?

Winter operation: Check the level of antifreeze in the defroster

Is the bowl ¾ full with antifreeze?

Is the water separator tank empty?