Due to individual applications, it is not possible to
identify all of the factors which can contribute to
severe service operation. Consult your Perkins
dealer or your Perkins distributor for the unique
maintenance that is necessary for the engine.
The operating environment, incorrect operating
procedures and incorrect maintenance procedures
can be factors which contribute to a severe service
application.
Environmental Factors
Ambient temperatures
– The engine may be
exposed to extended operation in extremely cold
environments or hot environments. Valve
components can be damaged by carbon buildup if
the engine is frequently started and stopped in very
cold temperatures. Extremely hot intake air reduces
engine performance.
Quality of the air
– The engine may be exposed to
extended operation in an environment that is dirty or
dusty, unless the equipment is cleaned regularly.
Mud, dirt and dust can encase components.
Maintenance can be very difficult. The buildup can
contain corrosive chemicals.
Buildup
– Compounds, elements, corrosive
chemicals and salt can damage some components.
Altitude
– Problems can arise when the engine is
operated at altitudes that are higher than the
intended settings for that application. Necessary
adjustments should be made.
Incorrect Operating Procedures
• Extended operation at low idle
• Frequent hot shutdowns
• Operating at excessive loads
• Operating at excessive speeds
• Operating outside the intended application
Incorrect Maintenance Procedures
• Extending the maintenance intervals
• Failure to use recommended fuel, lubricants and
coolant/antifreeze
i07888480
Starting
Motor
-
Inspect
Perkins
recommends
a
scheduled
inspection
of
the
starting
motor.
If
the
starting
motor
fails,
the
engine
may
not
start
in
an
emergency
situation.
Check the starting motor for correct operation. Check
the electrical connections and clean the electrical
connections. Refer to the Systems Operation, Testing
and Adjusting Manual, “Electric Starting System -
Test” for more information on the checking procedure
and for specifications consult your Perkins dealer or
your Perkins distributor for assistance.
i02184788
Turbocharger
-
Inspect
(If
Equipped)
A
regular
visual
inspection
of
the
turbocharger
is
recommended.
Any
fumes
from
the
crankcase
are
filtered
through
the
air
inlet
system.
Therefore,
by-
products
from
oil
and
from
combustion
can
collect
in
the
turbocharger
compressor
housing.
Over
time,
this
buildup
can
contribute
to
loss
of
engine
power,
increased
black
smoke
and
overall
loss
of
engine
efficiency.
If
the
turbocharger
fails
during
engine
operation,
damage
to
the
turbocharger
compressor
wheel
and/
or
to
the
engine
may
occur.
Damage
to
the
turbocharger
compressor
wheel
can
cause
additional
damage
to
the
pistons,
the
valves,
and
the
cylinder
head.
NOTICE
Turbocharger bearing failures can cause large quan-
tities of oil to enter the air intake and exhaust sys-
tems. Loss of engine lubricant can result in serious
engine damage.
Minor leakage of oil into a turbocharger under ex-
tended low idle operation should not cause problems
as long as a turbocharger bearing failure has not
occured.
When a turbocharger bearing failure is accompanied
by a significant engine performance loss (exhaust
smoke or engine rpm up at no load), do not continue
engine operation until the turbocharger is renewed.
A visual inspection of the turbocharger can minimize
unscheduled downtime. A visual inspection of the
turbocharger can also reduce the chance for potential
damage to other engine parts.
Removal and Installation
Note:
The turbochargers that are supplied are
nonserviceable.
76
M0105633-01
