Hyundai 35DS-7 Operation Manual page 180

(5) Inspect bearing blocks for excessive wear
or scoring on the surfaces which are in
contact with the gears. Also inspect the
bearings for excessive wear or scoring.
(6) Inspect the area inside the gear housing.
It is normal for the surface inside the gear
housing to show a clean "wipe" on the
inside surface on the intake side. There
should not be excessive wear or deep
scratches and gouges.
General information
It is important that the relationship of the
mounting flange, bearing blocks and gear
housing is correct. Failure to properly
assemble this pump will result with little or
no flow at rated pressure.
This pump is not bi-rotational.
6-36
PUMP 14