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Instructions
2
Important instructions which concern technical safety and protection of persons are emphasised as shown
below.
Danger:
This refers to working and operating procedures which must be complied with in order to rule out
the risk to persons.
Caution:
This refers to working and operating procedures which must be complied with in order to prevent
damage to or destruction of material.
Note:
Explanatory descriptions which help in understanding the relevant work or operating procedure to
be carried out.
Fitting flat seals / gaskets
Flat seals / gaskets are often inserted with sealing agents or adhesives to make fitting them easier or to
achieve better sealing. Flat seals may slip in operation due to the “sewing-machine” effect, in particular if
they are used between parts with different rates of linear expansion under heat (e.g. aluminium and cast
iron), and leaks may then occur.
Example:
The cap of the front crankshaft seal. If a sealing agent or an adhesive is used here the flat seal will move
inwards in the course of time as a result of the different expansion rates of the materials. Oil will be lost, for
which the shaft seal may be thought to be responsible.
Flat seals / gaskets can be fitted properly only if the following points are observed:
D
Use only genuine MAN seals / gaskets
D
The sealing faces must be undamaged and clean
D
Do not use any sealing agent or adhesive
−
as an aid to fitting the seals a little grease can be used if
necessary so that the seal will stick to the part to be fitted
D
Tighten bolts evenly to the specified torque
Fitting round sealing rings
D
Use only genuine MAN round sealing rings
D
The sealing faces must be undamaged and clean
D
Always wet round sealing rings with engine oil before fitting them
Содержание D 2840 LE 301
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Страница 20: ...Engine views 18 Engine views D 2842 LE 301 9 10 11 12 9 8 6 5 4 3 2 1 13 14 15 16 17 18 6 7 8...
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Страница 151: ...149 Service Data...
Страница 179: ...177 Special tools...
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Страница 186: ...Special tools 184 30 29 32 31 33...
Страница 189: ...Special tools 187 2843 Pressing mandrel for cap dia 50 1 mm Pressing mandrel for cap dia 62 1 mm...
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