– If the toothed belt wear exceeds
1
/
4
of the measuring field,
the appropriate time for renewing the toothed belt must be
specified for each individual scenario. The indicator should
not be too close to the centre of the measuring field. If this is
the case, the toothed belt is very likely to last until the next
service interval is due.
Example 2 (inspection at 1200 operating hours)
– -1- Worn (2400 operating hours)
– -2- New
– -3-.
1
/
2
of measuring field
– -4- Range for toothed belt not OK
– If the dashed indicator is still ahead of the centre of the
measuring field at the 1200 operating hour inspection, the
toothed belt wear is linear. I.e., the toothed belt will last until
the next inspection is due and does not need to be renewed.
– If the indicator exceeded
1
/
2
of the measuring field, it is in the
"Range for toothed belt not OK", and the toothed belt must
be renewed. This must be assessed for each individual
case.
Example 3 (inspection at 1800 operating hours)
– -1- Worn (2400 operating hours)
– -2- New
– -3-.
3
/
4
of measuring field
– If the dashed indicator is still ahead
3
/
4
of the measuring field
at the 1800 operating hour inspection, the toothed belt wear
is linear. I.e., the toothed belt will last until the next inspec-
tion is due and does not need to be renewed.
– If the indicator exceeded
3
/
4
of the measuring field, renew
toothed belt -immediately-.
If the assessment showed that the toothed belt will not last
until the next service interval is due, renew toothed belt.
After the toothed belt has been removed, check wear of
toothed belt pulleys
“Wear of high-pressure pump pul-
.
If the wear on one of the toothed belt pulleys (especially on
the high-pressure pump and coolant pump pulleys) ex-
ceeds 0.50 mm, renew all toothed belt pulleys and rollers.
3
Industriemotoren - Industrial Engines 2009
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Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
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Repair Group 13 - Crankshaft group
