INTRODUCTION
Basic instructions - How to use the maintenance standard and
precautions
Application
WHEN THE MACHINE IS NEW
Confirm that the performances are in accordance with standard specifications as compared to the performance stan-
dards.
AT SPECIFIC SELF INSPECTION (RULE BY COUNTRY)
Use the data for the criterion, for the purpose of correction, adjustment and replacement.
WHEN PERFORMANCES ARE DETERIORATED
Determine whether it is caused by a fault or end of service life after long hours of operation, to be used for safety and
economical considerations.
WHEN MAIN COMPONENTS ARE REPLACED
For example, use data to restore performances of pumps and others.
Terminology
STANDARD VALUES
Values to be used to condition or assemble a new machine. Where special notes are not given, these values represent
standard specifications (machine with standard attachments and standard shoes).
REFERENCE VALUES FOR REMEDY
Values at which readjustment is required. In order to ensure performance and safety it is strictly prohibited to use the
machine over the specified values.
SERVICE LIMIT
This is the limit value at which reconditioning is impossible without replacement of parts. If the value is expected
to exceed the service limit before next inspection and correction are performed, replace the parts immediately. The
operation over the specified values causes increase of damage and requires the down time of machine, and also
causes safety problems.
Cautions to be exercised at judgment
EVALUATION OF MEASURED DATA
Disagreement of measuring conditions, variations of data peculiar to a new machine, and measuring errors are to be
evaluated. Determine generally at what levels measured values are located, instead of determining whether or not
values fall within or run out of the reference values.
DETERMINING CORRECTION, ADJUSTMENT OR REPLACEMENT
Machine performances deteriorate with time as parts wear and some deteriorated performances may be restored to
new levels. Therefore, determine correction, adjustment or replacement, depending upon the operating hours, kind of
work and circumstances in which the machine is placed, and condition the machine performances to its most desirable
levels.
Other cautions to be exercised
PARTS LIABLE TO DEGRADE
Rubber products, such as, hydraulic hoses, O-rings, and oil seals deteriorate with time; replace them at regular inter-
vals or at overhauls.
47494131A 11/03/2013
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Содержание E175C
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