Doc No: OMM50001243
Rev: C Page 50 of 68
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4. Remove the hex head cap screws (16), bearing housings
(8), gaskets (10), and shims (9) from both sides of the
pump. Service Tip: It may be necessary to tap on the
bearing housing with a rubber mallet to free it from the
power frame after the hex head cap screws have been
removed. If that is not adequate, tapped jack screw holes,
which are the same size as the cap screws holding the
housing in place, are provided in each bearing housing to
help remove stuck housings.
5. Count and record the number of shims on each side to
facilitate reassembly. The bearing cups (11) and
crankshaft oil seal (13) will remain in the bearing housing.
6. To remove the crankshaft (2), carefully move it through one
side of the bearing housing opening in the power frame.
The throws may have to be rotated as the crank is removed
to clear the connecting rods. The crankshaft should be
handled carefully to prevent the critical bearing surfaces
from being scratched or damaged.
Figure 18: Bearing Housing, Gasket, and Shim Removal
