Introduction
A5.02
M20/M25/M32/M43
en / 14.12.2010 AA047605 1/15
1. General
It is assumed that the engine room personnel has the necessary knowledge and experi-
ence required for the proper maintenance and servicing of diesel engines. For this rea-
son and in the interest of clearness we did not go too much into details in the
maintenance documents.
No claims can be raised owing to missing instructions in the maintenance documents, if
damage is caused by improper handling.
All information refers to the date of printing.
2. Explanation of the maintenance system
2.1 Scheduled maintenance
Without “Scheduled maintenance” the economic operation of supercharged engine is in
the long run not possible at today's state of art.
The explanations are used to make the user of this engine plant familiar with the existing
maintenance system of Caterpillar Motoren GmbH & Co. KG and to interest and deepen
the understanding of the user for the problems and importance of the “Scheduled
maintenance”.
It is the purpose of the maintenance to replace parts subject to wear and tear or to repair
these parts before they are damaged.
The “Scheduled maintenance” is thereby supported by inspections according to fixed
deadlines. These inspections are decision criteria for the need and extend of mainte-
nance and servicing.
The following is used as parameter:
• data on wear and tear
• evaluation criterion and
• performance checks
Most of the work to be carried out does not have a fixed deadline since the service life of
individual components is highly influenced by environmental and operating conditions,
fuel qualities and their care.
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