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Radiator Pressure Cap - Clean/
Replace
Pressurized System: Hot coolant can cause seri-
ous burns. To open the cooling system filler cap,
stop the engine and wait until the cooling system
components are cool. Loosen the cooling system
pressure cap slowly in order to relieve the
pressure.
NOTICE
When any servicing or repair of the engine cooling
system is performed the procedure must be per-
formed with the engine on level ground. This will allow
you to accurately check the coolant level. This will al-
so help in avoiding the risk of introducing an air lock
into the coolant system.
1.
Stop the engine and allow the engine to cool.
Loosen the cooling system filler cap slowly in order
to relieve any pressure. Remove the radiator
pressure cap.
2.
Check coolant level. Refer to Operation and
Maintenance Manual, “Cooling System Coolant
Level - Check”.
3.
Install new radiator pressure cap.
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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.
i05157183
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
occurred.
When a turbocharger bearing failure is accompanied
by a significant loss of engine performance, 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
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 emissions legislation.
96
SEBU8609
Maintenance Recommendations
Radiator Pressure Cap - Clean/Replace