Man D2842 LE103, Руководство по эксплуатации

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Maintenance and Care
MAN-Industrial diesel engines D2842 LE103
61
Carefully read the Operating Instructions before starting any work!
This is especially valid for the chapter on General Safety Instructions
and the safety instructions in each of the chapters.
8.4.8 V-belt replacement
Check the condition of the V-Belt
When wear or a different tension is detected on
one V-Belt of a multi-V-Belt drive, the complete set
of V-Belts must always be replaced.
1. Check V-Belts for tears, contamination from oil,
overheating and wear.
2. Replace damaged V-Belts.
Check the V-Belt tension
Use the V-Belt tension measuring device to check
the V-Belt tension.
1. Lower the indicator arm (1) on the scale.
2. Position the tension measuring device in the
middle, between the two V-pulleys, such that
the edge of the contact surface (3) fits closely
along the side of the V-Belt.
3. Apply pressure slowly and at right angles to the
surface of the pressure pad (2), until the spring
audibly snaps out, so that the indicator arm
moves upwards.
Further pressure after the snapping out of the
spring leads to a false indication!
4. The value of the tension force can be read off
where the upper side of the indicator arm (1)
intersects the scale.
5. Before reading off the value make sure that the
indicator arm remains in its position.
If the measured value does not correspond to the
prescribed set value, the V-Belt tension must be
corrected.
1
2
3
Tension forces in the cold condition according to the kg scale on the device
Belt width 3/3VX
on new installation on installation 135-150
after the elapse of 10 minutes running time 105-120
On maintenance after a long period of running 90