Page 6 • Fishing Bumper Subs • Manual D450
Packing Ring
Knocker
Chevron Packing
6
•
Logan Fishing Bumper Sub
4. Repeat seal/ring installation proce-
dure on the upper groove. Skip to
step 6 to continue.
5. Install optional chevron packing
according to the diagram above.
Reinstall the packing ring and re-
tainer ring.
6. Secure the upper end of the mandrel
body horizontally into a suitable
vise. Thoroughly coat the polished
surfaces with a good grade of clean,
lightweight oil.
CAUTION:
Use only enough grip-
ping action in the vise to secure
the body. Avoid making heavy tool
marks.
7. Align the hexagon shapes of the
mandrel and mandrel body and slide
the mandrel through the bottom of
the mandrel body. Continue to gently
push the mandrel through until the
mandrel bumps against the mandrel
body. Do not force the mandrel —
the mandrel should freely move back
and forth. If resistance is encoun-
tered, remove the mandrel and
remove any foreign matter.
8. Lubricate and install the knocker
on the upper end of the mandrel.
Tighten.
9. Install the lock screw in the knocker.
Make sure it locks onto the undercut
provided on the mandrel.
10. Carefully slide the middle body over
the knocker and mandrel to avoid
damaging the knocker seals. Tight-
en the connection to the mandrel
body.
11. Install top sub on middle body.
Tighten the connection between
the top sub and the upper end
of the middle body.
12. Tighten all connections before run-
ning the tool in the hole. Refer to
the Tightening Torques table on
page 23.
13. Paint or lubricate exterior surfaces
to prevent corrosion. If the tool will
be stored outside, the exterior of
the tool should be cleaned and
painted, or coated with a heavy
application of grease.
Assembly is now complete and the tool
is ready for service.
If the tool will be stored for future ser-
vice, install thread protectors and apply
a good grade of thread dope to the tool
joints.
Male Adapter (2 Req’d)
Pressure Rings (10 Req’d)
Mandrel
Retainer Ring
Female Adapter (1 Req’d)
