Workshop Manual

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Workshop Manual, TPD 1458E, issue 3 - Perkins Confidential: Green 3
400 Series
Viton seals
Warnings!
l Some seals used in engines and in components fitted to engines are made of Viton. Viton is used by many
manufactures and is a safe material under normal conditions of operation. If Viton is burned, a product of
this burnt material is an acid which is extremely dangerous. Never allow this burnt material to come into
contact with the skin or with the eyes. If it is necessary to come into contact with components which have
been burnt, ensure that the precautions which follow are used:
l Ensure that the components have cooled.
l Use Neoprene gloves and discard the gloves safely after use.
l Wash the area with calcium hydroxide solution and then with clean water.
l Disposal of components and gloves which are contaminated must be in accordance with local regulations.
If there is contamination of the skin or eyes, wash the affected area with a continuous supply of clean water or
with calcium hydroxide solution for 15 - 60 minutes. Obtain immediate medical attention.
Safety cautions when an engine is cleaned
Care should be taken, when an engine is cleaned with a high pressure cleaning system.
Cautions:
l Do not wash an engine while it runs or while it is hot. If cold cleaning fluids are applied to a hot engine,
certain components on the engine could be damaged.
l Leave the engine to cool for at least one hour and disconnect the battery connections before cleaning.
l Do not wash any part of the fuel injection pump (FIP), cold start device, electrical shut off solenoid (ESOS)
or electrical connectors.
l Ensure that the alternator, starter motor and any other electrical components are shielded and not directly
cleaned by the high pressure cleaning system.
If these cautions are ignored, the engine or certain components could be damaged, fail to operate and also
make the manufacturer’s warranty invalid.