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.
i07748719
Alternator
and
Fan
Belts
-
Inspect/Adjust/Replace
Inspection
To
maximize
the
engine
performance,
inspect
the
belts
for
wear
and
for
cracking.
Replace
belts
that
are
worn
or
damaged.
For
applications
that
require
multiple
drive
belts,
replace
the
belts
in
matched
sets.
Replacing
only
one
belt
of
a
matched
set
will
cause
the
new
belt
to
carry
more
load
because
the
older
belt
is
stretched.
The
additional
load
on
the
new
belt
could
cause
the
new
belt
to
break.
If
the
belts
are
too
loose,
vibration
causes
unnecessary
wear
on
the
belts
and
pulleys.
Loose
belts
may
slip
enough
to
cause
overheating.
To
check
accurately
the
belt
tension,
a
suitable
gauge
should
be
used.
Illustration 27
g06420392
Typical example
(1) Burroughs Gauge
Fit the gauge (1) at the center of the longest free
length and check the tension. The correct tension is
535 N (120 lb). If the tension of the belt is below
250 N (56 lb), adjust the belt to 535 N (120 lb).
If twin belts are installed, check and adjust the
tension on both belts.
Adjustment
Illustration 28
g06420401
1.
Loosen the alternator pivot bolt (2).
M0105633-01
51
