Logan 85-Ton Open Loop Power Swivel, Руководство пользователя

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SWIVEL DISASSEMbLY
Care should be taken to ensure that
no foreign material enters the interior
machinery of the swivel. All disassembly
and major repairs should be conducted
in a clean, well-equipped shop.
1. Remove all hydraulic hoses from the
swivel. Hose ends should be covered
to help prevent foreign matter from
entering the interior.
NOTE:
When not in use, all hydrau-
lic hoses should be reeled up to
prevent kinking and other damage.
Damaged hoses may cause blockage
or other interference that the unit
may not function properly.
2. Place the swivel on a suitable rack
(similar to the bracket on the skid or
trailer) that supports the swivel on its
bail pins.
3. Remove the hydraulic motor guard.
4. Place an open container under the
magnetic drain plug and remove
the plug. Check the drain plug and
drained hydraulic fluid for metal filings
and other foreign matter.
5. Remove the four retaining screws
and their retainers from the lower
packing nut. Secure the lower stem
of the swivel to keep the upper stem
from turning while loosening the lower
packing nut. Turn the lower packing
nut in a clockwise direction until it
turns freely. Back the lower packing
nut completely off the upper stem.
Repeat the above procedure to
remove the upper packing nut and
back it completely off the gooseneck.
Remove the floating washpipe and
packing assembly.
6. Press the washpipe out of the lower
packing nut and slide the upper nut
off. Remove the three upper packing
locking pins and press the upper
packing off the washpipe. Replace
the washpipe if it shows any signs of
wear (scoring or surface abrasion).
7. Remove the packing assembly parts
from inside both nuts. (The lower
packing assembly consists of an
o-ring, packing bottom ring, plain
spacer ring, spacer and lantern ring,
and three packing rings. The upper
packing assembly consists of an
o-ring, upper packing nut ring, and
one packing ring.) When replacing
the packing, it is important that both
packing nuts are clean and free of all
old packing residue. Make sure both
packing nuts are clean and free of
foreign matter.
8. Remove and set aside the goose
neck and bonnet.
9. Turn the swivel upside down. Re-
move the hydraulic motor and set it
aside.
NOTE:
Do not disassemble the hy-
draulic motor. If trouble with the mo-
tor is known or suspected, carefully
plug the ports and return the motor
to Logan Oil Tools for inspection and
repair.
10. Remove the piping that runs from
the oil filler plug opening in the top
plate to the side of the swivel body
next to the first reduction gear.
11. Remove the lower bearing retainer
screws. Set the retainer aside and
remove the gasket.
12. Remove the seal retainer snap ring
from the bearing retainer and the
two lower oil seals.
13. Turn the swivel upright and remove
the upper seal protector from the top
of the stem.
14. Remove the cap screws from the
top cover plate. A rubber mallet may
be used to break the gasket seal
if necessary. Lift off the top cover
plate.
15. Remove the upper gear cover shim
and gasket. A putty knife or other
thin tool may be used for prying and
cleaning.
16. Remove the oil seal from the upper
cover plate. Using the inside bearing
puller, pull the outer track of the
stem upper bearing from the top
cover plate. This will free the stem
for removal.
17. The inner tracks of the stem’s upper
and lower bearings and seal wear
ring at the bottom of the stem may
be removed with a bearing puller.
The final reduction gear is removed
by first removing the six ring groove
pins and then forcing the gear off the
main stem.
18. Remove the screws from the lower
gear cover plate. Tap the cover plate
gently with a rubber mallet to break
the seal if necessary. Scrape off
remaining residue with a putty knife.
19. Remove the first reduction pinion
bearing spacer and the first reduc-
tion pinion lower bearing from the
swivel body.
20. Lift out the final reduction pinion,
main thrust bearing, second reduc-
tion pinion, and first reduction
pinion. The gears may require
rotation to facilitate removal.
21. Remove the remaining roller bear-
ings, second reduction lower bear-
ing with its retainer ring, and first
reduction pinion upper bearing. As
with all bearings, exercise caution
when handling to guard against
possible damage.
NOTE:
Each part should be thor-
oughly cleaned (with steam or a high
pressure washer for metal parts, or
with a good grade solvent applied
with a clean brush) as it is removed.
Check parts for repair or replace-
ment as they are cleaned. Dry all
cleaned parts with compressed air
or a clean, soft cloth. Coat all clean,
dry parts with a thin coat of lubricat-
ing oil. Never leave parts exposed
overnight without a coating of pro-
tective oil.
Logan 85-Ton Open Loop Power Swivel
Logan 85-Ton Open Loop Power Swivel • 10