3.1 Air Cleaner
DETROIT DIESEL 53
DRY TYPE AIR CLEANER
Insert the nozzle inside of the
element and gently tap and blow out the
dust with air. When cleaning the dust from
the outside of the element. hold the nozzle
at least 6" from the element.
c. Wash the element if compressed air is not
available, or when the contaminant is
carbon, soot, oily vapor or dirt which cannot
be removed with compressed air. Agitate
the element in warm water containing a
Fig. 5. - United Specialties Dry Type Air Cleaner
UNITED SPECIALTIES AIR CLEANER
CAUTION: Do not use water hotter than your
hand can stand, solvents or oil, fuel oil or
The dry type United Specialties air cleaner shown in Fig.
5. consists of a body, dust unloader and element
clamped to a base.
Preceding the washing, it helps to direct air (not
exceeding 100 psi) through the element in a
Air is drawn through the cleaner intake pipe and is
direction opposite to the normal air flow, to
automatically set into a circular motion. This positive
dislodge as much dust as possible. Reverse
spinning of the dirty air "throws out" the heavier particles
flush with a stream of water (not exceeding 40
of dust and dirt where they are collected in the dust port
psi) until the water runs clean to rinse all
and then expelled through the dust unloader. The
loosened foreign material from the element.
circular action continues even during low air intake at
Shake out excess water from the element and
engine idle speed.
allow it to dry thoroughly.
CAUTION Do not attempt to remove excess
water by using compressed air.
Service the dry type United Specialties air cleaner as
4. Inspect the cleaned element with a light bulb after
each cleaning for damage or rupture. The slightest
1. Loosen the clamp screw and check the dust unloader
break in the element will admit sufficient airborne dirt to
for obstruction or damage. Refer to Section 15.1 for
cause rapid failure of piston rings. If necessary, replace
2. Unlock the spring clamps that hold the cleaner body
5. Inspect the gasket on the end of the element. If the
to the cleaner base which is bolted to the air inlet
gasket is damaged or missing, replace the element.
housing. Remove the body and then remove the
element from the cleaner base.
3. Clean the paper pleated air cleaner element as
For a temporary expedient in the field, tap
the side or end of the element carefully
against the palm of your hand.
CAUTION: Do not tap the element against a hard
surface. This could damage the element.
Compressed air can be used when the
major contaminant is dust.
compressed air (not to exceed 100 psi)
Fig. 6. - Farr Dry Type Air Cleaner
should be blown through the element in a
direction opposite to the normal air
1970 General Motors Corp.