Precleaner Section Cleaning - Komatsu 830E Shop Manual

FIGURE 5-4. CLEANING FILTER ELEMENT WITH
COMPRESSED AIR

Precleaner Section Cleaning

The tubes in precleaner section of air cleaner assembly
should be cleaned at least once annually and at each
engine overhaul. More frequent cleaning may be nec-
essary depending upon operating conditions and local
environment should tubes become clogged with oil,
sludge or dirt.
To inspect tubes in precleaner section, remove main
filter element. Do not remove the safety element.
Loosen clamps and remove dust collector cup. Use a
light to inspect the tubes, all tubes should be clear and
the light should be visible.
Clean the tubes as follows if clogging is evident:
Both the main and safety elements must be in-
stalled in the air cleaner while Steps 1 and 2 are
being accomplished to prevent any possibility of
dirt being forced into the engine intake area.
1. Dust can best be removed with a stiff fiber brush.
DO NOT use a wire brush. Dust may also be
removed effectively using compressed air.
2. Heavy plugging of tubes may require soaking and
washing of complete precleaner section. The fol-
lowing instructions cover these procedures.
NOTE: The precleaner section may be separated from
the air cleaner assembly without dismounting the com-
plete air cleaner from the truck. (Refer to Figure 5-2)
C5-4
FIGURE 5-5. REMOVING DUST FROM TUBES
3. Remove capscrews and locknuts holding pre-
cleaner section to the cleaner assembly and re-
move precleaner. The safety element must remain
in place to protect the engine intake.
4. Loosen clamps and remove dust collector cup (1)
from precleaner section. Wash dust cup with
water and liquid soap solution.
FIGURE 5-6. WASHING AND SOAKING
Air Filtration System
PRECLEANER SECTION
90112
90113
C05012 4/98