1-12
C3983
C3984
GEAR PUMP 1.2
Assembly
6. Prepare the bearing blocks by cleaning both
blocks (fig. C3983). Inspect the flat surfaces of the
bearing blocks for burrs or scratches on the edges. If
necessary, remove burrs with very fine emery paper.
Then rewash the bearings. Inspect the DU bushings
for wear. There should be no bronze showing. Using
clean hydraulic oil, lubricate the internal and external
surfaces of your blocks.
7. Assemble the bearing blocks and gears.
Lubricate the journals and gear faces. Assemble the
bearing blocks and gears in the same orientation that
it was disassembled. Align all marks made during
disassembly. Ensure the front and rear block occupy
the same location with respect tot he housing as they
did before disassembly. Misalignment of the gear
teeth may increase operating noise.
8. Install the gear and block assembly into the body
of the cavity. Align the assembly marks to ensure that
the gear block assembly is installed with the same
orientation as before assembly.
9. Once the gears and the bearing blocks are
installed into the housing, clean the mating surfaces.
Remove any excess lubrication and grease from the
mating surfaces of the pump body. Ensure that these
surfaces are dry and free of contamination before
moving on to the next step. Install the o-rings and
back-up rings on both the bearing blocks and the
housing (fig. C3984).
Blocks