Make- Hitachi
Model- excavator most models
Open fresh air filter door. Remove the filter & inner filter insert. Cut the inner filter insert level with the bolt holes & refit the insert without bolts. Seal & bolt the adapter to the filter insert. Close the filter door & mark out the outside of where the adapter touches the filter door cut the square hole out of the filter door to allow it to close over the adapter. Fit & seal the snorkel to the filter adapter with 4 bolts. The top of the snorkel is held with a magnet.
Fit the pressuriser unit to the machine deck behind the rear window using the decks OEM bolts.
Fit the sensor box to the RHS of the fresh air filter. Fit the monitor onto the round bar beside the RH window.
Note.. the recirculation filter is hard to access to remove. If you cannot remove set the fresh air recirculation vent to recirculation & place a note on the machine to always keep it on fresh air. Fresh air recirculation vent can be set using the machines monitor input.
