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
i02177969
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 or 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 quanti-
ties of oil to enter the air intake and exhaust systems.
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.
For options regarding the removal, installation, and
replacement, consult your Perkins dealer or your
Perkins distributor. Refer to the Disassembly and
Assembly Manual, “Turbocharger - Remove and
Turbocharger - Install” for further information.
Inspecting
NOTICE
The compressor housing for the turbocharger must
not be removed from the turbocharger for cleaning.
The actuator linkage is connected to the compressor
housing. If the actuator linkage is moved or disturbed
the engine may not comply with emmissions
legislation.
1. Remove the pipe from the turbocharger exhaust
outlet and remove the air intake pipe to the
turbocharger. Visually inspect the piping for the
presence of oil. Clean the interior of the pipes in
order to prevent dirt from entering during
reassembly.
2. Check for the presence of oil. If oil is leaking from
the back side of the compressor wheel, there is a
possibility of a failed turbocharger oil seal.
The presence of oil may be the result of extended
engine operation at low idle. The presence of oil
may also be the result of a restriction of the line for
the intake air (clogged air filters), which causes the
turbocharger to slobber.
SEBU7833 83
Refill Capacities
Starting Motor - Inspect
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