Winterthur Gas X40-B, Maintenance Manual

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Maintenance
1132 − 2/A1
Winterthur Gas & Diesel Ltd.
8/ 15
6.2 Crankshaft − Lift
1) Measure and record the lateral bearing
clearances (y1 and y2
,
Fig. 11
)
between
the crankshaft (2) and the bottom
bearing shell (3, 4) approximately
50 mm below the bearing.
2) Put the dial gauge (1) above the
crankshaft (2) as shown.
3) Set the dial gauge (1) to zero.
4) Look at the dial gauge and operate the
HP oil pump (94931) to lift the
crankshaft (2) to 0.15 mm.
5) Make sure that the value on the dial
gauge is 0.15 mm.
6) Make sure that there is no clearance
between the adjacent bearing cover
and the crankshaft (2).
7) Keep the pressure constant.
8) Measure the lateral bearing clearances (y
1
and y
2).
Compare these values with
the values recorded in step 1 ).
9) If the value of the lateral bearing clearance is more than 0.10 mm, lower the
crankshaft and do step a ) to step c ).
a) Install the hydraulic jacks in a position where the lateral bearing clearance is
smaller.
b) Operate the HP oil pump to lift the crankshaft.
c) Lift the crankshaft to 0.15 mm.
Main Bearing − Removal and Installation
2016
0.15 mm
50 mm
009.810/02
1
2 3, 4
Fig. 11