MarelliMotori M31FA600A M EC-20 Manual De Instrucciones página 36

12. AVR ANALYSIS
The following paragraph provides a procedure for the identification of the AVR failure and the proper filling in
of the annexed report form ((APPENDIX)).
All the checks and measurements specified herein must ALWAYS be performed with the AVR
disconnected from the alternator.
This document allows to identify the failures occurring in the AVR envelope, in the main components
and/or in the AVR power supply circuit.
The accuracy and steadiness of the regulation can only be verified in the final application for which
the
alternator is used.
IMPORTANT: in case of malfunction or if any AVR failure is detected, for any AVR claim to be accepted the
user must have carried out the preliminary procedure described herein and filled in the report form in its
entirety.
In case you experience any of the difficulties listed in this chapter please follow the troubleshooting and
repair procedure described
The report form includes the following sections:
#1 - GENERAL INFORMATION
Specify the serial numbers of the alternator and of
the AVR (*). The serial number and the part
number of the AVR are specified in a label affixed
on the AVR plastic support. The User must also
provide additional information, like the failure date,
the site and the AVR operating time.
#2 - VISUAL / MULTI-METER CHECKS
The User must perform a visual inspection of the
AVR and all the electrical checks described in the
following pages. If the result of any check is
positive, tick the relevant box. If the result is
negative, leave the box blank.
#3 - DETECTED PROBLEMS
Select one or more options from the possible
failure mode list. Also add any further information
about the failure, if available. In this section the
User must describe what is detected during the
user alternator test.
#4 - ADDITIONAL INFORMATION
Enter here a description of the application and/or
any additional information helping to define the
operating conditions under which the failure
occurred.
Attach some photos of the alternator, of the regulator and/or of the damaged parts to the report form.
(*) See the figures below for information about where you can find the AVR code and the relevant serial
number, the alternator type and the relevant serial number.
963857154_H
www.repuestosgruposelectrogenos.es
M31FA600A MEC-20
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