R1040 MAINTENANCE MANUAL
Page 32 of 48
Dry type air cleaner with Plastic housing Dry type air cleaner with sheet metal housing
Fig 5.4.1
Fig 5.4.2
Inlet cap or pre - cleaner is supplied for the air intake inlet cap prevents ingress of
rain/heavy particles.
Two filter elements are co - axially fitted in the air cleaner housing. The outer element is the
main filter element, with a built in cyclone separator which gives a swirling effect to
incoming air, to separate out heavy dust particles by centrifugal action. This dust is
collected in the end cover (which is removable). The vacuator valve at the bottom of cover
helps in expelling the accumulated dust. This is achieved by opening / closing of vacuator
valve outlet due to the airflow fluctuations inside the air cleaner.
Inner element is a ‘Safety Element’ to prevent ingress of dust into the engine, when the
outer (main) element is removed for cleaning / replacement. (For genset application, air
cleaners with only single main element are used.)
Maintenance
Regular check up and maintenance of the air cleaner is essential to ensure maximum protection
to the engine from the dust.
•
Daily check the connection of rubber hose and the hose clips between the manifold and the
air cleaner before starting the engine. Damaged hose/ clips must be replaced
immediately. Any bypassing of unfiltered air through cracks in the hose / loose hose will
quickly lead to serious damage to the engine.
IMPORTANT
Since this is a dry type air cleaner, do not fill a single drop of oil in it.
Also, protect the air cleaner form ingress of rain / moisture
.
•
The restriction indicator, mounted on air cleaner near the hose, indicates the condition
of the air cleaner element, when the air element is in good condition, a red signal will
be seen through the transparent window on the indicator when the engine is running
and will disappear when engine is stopped. However, if the element is choked, then the
red signal will remain ‘ON’ even after engine is stopped. This is an indication that the
main filter element must be removed & cleaned or replaced
.
NOTES: -
1. If engine performance is poor, but restriction is still within limits, do not change the
element. The air cleaner is probably not at fault.
2. To get those extra service hours out of air cleaner element, make sure the air inlet is
