6.
Install end cover (4) to air cleaner body (2) and
secure end cover. If necessary, reset the air
service indicator, refer to this Operation and
Maintenance Manual, Engine Air Cleaner Service
Indicator - Inspect for more information.
i01909507
Engine
Air
Cleaner
Service
Indicator
-
Inspect
Some
engines
may
be
equipped
with
a
different
service
indicator.
Some
engines
are
equipped
with
a
differential
gauge
for
inlet
air
pressure.
The
differential
gauge
for
inlet
air
pressure
displays
the
difference
in
the
pressure
that
is
measured
before
the
air
cleaner
element
and
the
pressure
that
is
measured
after
the
air
cleaner
element.
As
the
air
cleaner
element
becomes
dirty,
the
pressure
differential
rises.
If
your
engine
is
equipped
with
a
different
type
of
service
indicator,
follow
the
OEM
recommendations
in
order
to
service
the
air
cleaner
service
indicator.
The
service
indicator
may
be
mounted
on
the
air
cleaner
element
or
in
a
remote
location.
Illustration 35
g00103777
Typical service indicator
Observe the service indicator. The air cleaner
element should be cleaned or the air cleaner element
should be replaced when one of the following
conditions occur:
• The yellow diaphragm enters the red zone.
• The red piston locks in the visible position.
Test the Service Indicator
Service indicators are important instruments.
• Check for ease of resetting. The service indicator
should reset in less than three pushes.
• Check the movement of the yellow core when the
engine is accelerated to the engine rated speed.
The yellow core should latch approximately at the
greatest vacuum that is attained.
If the service indicator does not reset easily, or if the
yellow core does not latch at the greatest vacuum,
the service indicator should be replaced. If the new
service indicator will not reset, the hole for the service
indicator may be restricted.
The service indicator may need to be replaced
frequently in environments that are severely dusty.
i01941505
Engine
Ground
-
Inspect/Clean
Inspect
the
wiring
harness
for
good
connections.
Perkins
use
the
starter
motor
in
order
to
ground
the
engine.
Check
the
connection
on
the
starter
motor
at
every
oil
change.
Ground
wires
and
straps
should
be
combined
at
engine
grounds.
All
grounds
should
be
tight
and
free
of
corrosion.
• Clean the grounding stud on the starter motor and
the terminals with a clean cloth.
• If the connections are corroded, clean the
connections with a solution of baking soda and
water.
• Keep the grounding stud and the strap clean and
coated with suitable grease or petroleum jelly.
i07819538
Engine
Mounts
-
Inspect
Note:
The
engine
mounts
may
not
have
been
supplied
by
Perkins.
Refer
to
the
Original
Equipment
Manufacturer
(OEM)
information
for
further
details
on
the
engine
mounts
and
the
correct
bolt
torque.
Inspect
the
engine
mounts
for
deterioration
and
for
correct
bolt
torque.
Excessive
engine
vibration
can
be
caused
by
the
following
conditions:
• Incorrect mounting of the engine
• Deterioration of the engine mounts
• Loose engine mounts
Any engine mount that shows deterioration should be
replaced. Refer to the OEM information for the
recommended torques.
60
M0105633-01
Maintenance Section
Engine Air Cleaner Service Indicator - Inspect
