DSTOPTRS 28 2008
Does it remain open? Is it cracked? Is it torn? Is it missing?
NEVER leave an air cleaner open longer than necessary. An open air cleaner is a direct
entry to your engine. Cover the opening to be sure no debris gets in.
DON'T overlook a worn or damaged gasket. When replacing a gasket, check to be sure
no piece of the old gasket remains in the housing. Always replace with a new
gasket, never reuse an old one.
NEVER install a dented or punctured element. It will not protect against contamination.
NEVER use a warped or damaged housing cover. It cannot make a proper seal. Also
check for damage to the air cleaner housing that could cause a leak.
NEVER substitute an incorrect element model number. An improper element prevents a
firm seal. Use the dirty element until the correct model filter can be installed.
REPLACEMENT VACUATOR
TM
VALVES
The Vacuator Valve, standard on the majority of Donaldson air cleaners, is an important
part of the functionality of the air cleaner. It is an integral part of the pre-cleaning stage on
2-stage air cleaners.
The dust cup, where pre-cleaned dust is collected, is normally under a slight vacuum when
the engine is running. The normal engine pulsing of the vacuum causes the Vacuator Valve
(located at the lowest point on the dust cup) to open and close. This action automatically ex-
pels any collected dust and water. The Vacuator Valve also unloads when the engine is
stopped.
Replace That Damaged Vacuator Valve! If your valve is cracked, torn, remains open or is
missing, dust particles that are normally expelled can deposit themselves onto the filter and
will shorten air filter service life. REPLACE IT!
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