Maintenance
3303−2/A1
Winterthur Gas & Diesel Ltd.
7/ 7
7) Make sure that the bearing shell is
clean.
8) Put oil on the bearing shell as follows:
a) If you start the engine immediately
after completion of this procedure,
use only bearing oil.
b) If the engine has stopped for
some days, use a mixture of
high-viscosity oil (steam engine
cylinder oil, ISO VG 1000/1500)
and bearing oil. The ratio is two
thirds ISO VG 1000/1500 to one
third bearing oil.
Note: A list of suppliers for ISO VG
1000/1500 high viscosity oils is
given in Table 1.
9) Put the round nuts (1, Fig. 13) on the
elastic studs.
10) Tighten the round nuts (1) equally with
a round bar.
11) Measure the distance (X1, X2) between
the edges of the bearing shells and the
bearing cover.
12) For new bearing shells, the dimensions
X1 plus X2 must be between 1.18 mm
and 1.34 mm.
13) Apply tension to the elastic studs, refer
to 9403−4, paragraph 3.
14) Remove all tools and equipment from
the work area.
Table 1: ISO G 1000/1500 Suppliers
Supplier
Type Viscosity at
40° C mm
2
/s
Viscosity at
100° C mm
2
/s
Weight at
15° C g/ml
BP ENERGOL DC 1000 980 49.0 0.913
BP ENERGOL DCW 1000 920 40.0 0.913
CHEVRON CYLINDER OIL 1000 1000 43.1 0.937
EXXON/ESSO CYLESSO 1000 950 44.0
EXXON/ESSO CYLESSO TK 1000 925 46.7
MOBIL EXTRA HECLA SUPER Cylinder Oil 680 39.0 0.905
SHEEL FIONA Oil 1500 1500 37.0 0.958
SHEEL VALVATA OIL 1000 1000 45.4 0.924
TEXACO 650T MINERAL Cylinder Oil 985 44.0 0.919
2015
Bottom End Bearing − Removal, Inspection and Installation
WCH02447
Fig. 13
1
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