i01807350
Aftercooler
Core
-
Clean/Test
(Air-To-Air
Aftercooler)
The
air-to-air
aftercooler
is
OEM
installed
in
many
applications.
Please
refer
to
the
OEM
specifications
for
information
that
is
related
to
the
aftercooler.
i02322295
Aftercooler
Core
-
Inspect
Note:
Adjust
the
frequency
of
cleaning
according
to
the
effects
of
the
operating
environment.
Inspect
the
aftercooler
for
these
items:
damaged
fins,
corrosion,
dirt,
grease,
insects,
leaves,
oil
and
other
debris.
Clean
the
aftercooler,
if
necessary.
For
air-to-air
aftercoolers,
use
the
same
methods
that
are
used
for
cleaning
radiators.
Personal injury can result from air pressure.
Personal injury can result without following prop-
er procedure. When using pressure air, wear a
protective face shield and protective clothing.
Maximum air pressure at the nozzle must be less
than 205 kPa (30 psi) for cleaning purposes.
After cleaning, start the engine and accelerate the
engine to high idle rpm. This will help in the removal
of debris and drying of the core. Stop the engine. Use
a light bulb behind the core in order to inspect the
core for cleanliness. Repeat the cleaning, if
necessary.
Inspect the fins for damage. Bent fins may be opened
with a “comb”.
Note:
If parts of the aftercooler system are repaired
or replaced, a leak test is highly recommended.
Inspect these items for good condition: Welds,
mounting brackets, air lines, connections, clamps
and seals. Make repairs, if necessary.
i02322311
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.
i04407613
Alternator
and
Fan
Belts
-
Replace
1.
Remove the guard that covers the alternator. Refer
to the Original Equipment Manufacture (OEM) for
the correct procedure.
SEBU9068-03
83