Gradall 534B (9020-7317) Service Manual - Manual (Page 241)

Donaldson
Proper air cleaner servicing results in maximum
engine protection against the ravages of dust.
Proper servicing can also save time and money
by maximizing filter life and dust cleaning
efficiency.
Two of the most common problems:
A) Over Servicing. New filter elements increase
in dust cleaning efficiency as dust builds up on the
Measure
Restriction
Measure the restriction
of the air cleaner with a
Donaldson restriction
indicator, such as The
Informer, a service
gauge, or water mano-
meter at the restriction
tap provided in the air
cleaner, the transfer
pipe, or the blower intake.
One of two conditions will exist
(1) If the reading indicates the maximum
restriction (per engine manufacturer’s
recommendations), change out the filter.
(2) If the reading shows below the maximum, the
filter still has life left and should not be touched.
Empty the Dust Cup
Dust should not be allowed to build up closer than
one inch from the baffle. On models equipped
with a Donaldson Vacuator valve, dust cup
service is cut to a minimum; all that is necessary
is a quick check to see that the Vacuator valve
is not inverted, damaged, or plugged.
Cyclopac Service Procedures ®
media. Don’t be fooled by filter appearance....
the filter should look dirty. By using proper filter
measurement tools you will use the full life of the
filter at maximum efficiency.
B) Improper Servicing. Your engine is vulnerable
to abrasive dust contaminants during servicing.
The most common cause of engine damage is
careless servicing procedures. By following the
steps shown, you can avoid unnecessary risk to
the engine.
Filter Servicing
When restriction indicates that filter servicing is
required, loosen the wingnut and remove the
primary filter. Before installing new filter, inspect
the filter and gasket for shipping or storage
damage. (See service
tips on reverse side of
this document.) Carefully
install new element and
wingnut.
Always use authentic
replacement Donaldson
filters, which have been
engineered to fit the air
cleaner and engine intake
system exactly.
Cover the Inlet
Don’t leave the air inlet
exposed! If the new filter won’t be installed
immediately, cover the opening to prevent stray
contaminant from entering the induction system.
Safety Element Service
For Maximum engine
protection and air
cleaner service life,
replace the safety
filter every third
primary filter change
or cleaning, or as
indicated by the
Donaldson Safety
Signal service
indicator. Note that
the safety element is not intended to be cleaned.
Reinstall the Dust Cup
Be sure the dust cup is sealed 360° around the air
cleaner body. Reset the restriction indicator to
green.
Check Connections
Ensure that all connections between the air
cleaner and the engine are tight and leak-free.
®