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MAK M20 User Manual

MAK M20
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Valve Cones
Repair / Checking
A5.05. 01.08.01.00
M20
en / 16.09.1997 IB001351 4/5
01
Ĺ
4. Maintenance (check of contact
reection/grinding)
4.1 Apply small dots of the diamond paste
Dp 30/10 - 15 µm with a syringe to the
valve seat of the new or refinished
valve cone and distribute the paste
uniformly (Fig. 4). Therafter the seat
ring surface is to be sprayed with a
thinner (F25) belonging to the diamond
paste, for dilution and in order to
increase of the grip.
4.2 Insert the oiled valve stem into the
guide bush. Fasten the device (Fig. 5/
W1) to the valve head and grind the
valve cone face and seat by hand
applying a moderate pressure, rotating
the device. The contact reflection “a”
(Fig. 6/a), visible by the rough grinding
process, should be
30 - 50 % of the circumferential seat
width b
starting from the outside diameter.
Fig. 4
W1
Fig. 5

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MAK M20 Specifications

General IconGeneral
BrandMAK
ModelM20
CategoryEngine
LanguageEnglish