Every 500 Service Hours Or 1 Year Aftercooler Core - Inspect/Clean/Test; Every 3000 Service Hours Alternator - Inspect - Perkins XGA 1600 Series Operation And Maintenance Manual

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Maintenance Section
Aftercooler Core - Inspect/Clean/Test
Aftercooler Core -
Inspect/Clean/Test
Note: Adjust the frequency of cleaning according to
the effects of the operating environment.
Inspect the cooling air side of the aftercooler for these
items: damaged fins, corrosion, dirt, grease, insects,
leaves, oil, and other debris. Clean the cooling air
side of the aftercooler, if necessary.
For air-to-air aftercoolers, use the same methods that
are used for cleaning the outside of radiators.
Personal injury can result from air pressure.
Personal injury can result without following prop-
er procedure. When using pressure air, wear a pro-
tective face shield and protective clothing.
Maximum air pressure at the nozzle must be less
than 205 kPa (30 psi) for cleaning purposes.
Pressurized air is the preferred method for removing
loose debris. Hold the nozzle approximately 6 mm
(0.25 inch) away from the fins. Slowly move the air
nozzle in a direction that is parallel with the tubes.
This will remove debris that is between the tubes.
Pressurized water may also be used for cleaning.
The maximum water pressure for cleaning purposes
must be less than 275 kPa (40 psi). Use pressurized
water in order to soften mud.
Use a degreaser and steam for removal of oil and
grease. Wash the core with detergent and hot water.
Thoroughly rinse the core with clean water.
After cleaning, start the engine. Run the engine
for 2 minutes. Operating the engine will help in the
removal of debris and drying of the core. Stop the
engine. Inspect the core for cleanliness. Repeat the
cleaning, if necessary.
Inspect the fins for damage. Bent fins may be opened
with a "comb".
Inspect these items for good condition: welds,
mounting brackets, air lines, connections, clamps,
and seals. Make repairs, if necessary.
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Alternator - Inspect
Perkins recommends a scheduled inspection of
the alternator. Inspect the alternator for loose
connections and correct battery charging. Check the
ammeter (if equipped) during engine operation in
order to ensure correct battery performance and/or
correct performance of the electrical system. Make
repairs, as required.
Check the alternator and the battery charger for
correct operation. If the batteries are correctly
charged, the ammeter reading should be very near
zero. All batteries should be kept charged. The
batteries should be kept warm because temperature
affects the cranking power. If the battery is too cold,
the battery will not crank the engine. When the
engine is not run for long periods of time or if the
engine is run for short periods, the batteries may not
fully charge. A battery with a low charge will freeze
more easily than a battery with a full charge.
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