17
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Logan 85-Ton Open Loop Power Swivel
15. Place the two lower stem oil seals
into position on the stem’s lower
bearing retainer. Set the seal retain-
er snap ring on the bearing retainer.
When properly assembled, the lips
of the oil seals should point upward.
Exercise caution when assembling
the oil seals over the wear ring,
being careful not to tear or turn
back the lips of the oil seals or
cause other damage to the seals.
Dam aged seals will cause leakage.
Set the lower bearing retainer over
the stem and in place on the body.
Insert the six lower bearing retainer
cap screws with lock washers.
Tighten the screws.
16. Insert the first reduction pinion oil
seal. Place the hydraulic motor
with the hydraulic motor adapter
attached into position. Insert the
eight cap screws with lock washers.
Tighten the screws. Attach the
hydraulic motor guard.
17. Turn the body upright.
18. Grease the upper oil seal and place
the upper seal protector in position
on the stem. Make sure the seal
protector is right-side up with the lip
against the upper cover plate.
19. Assemble the bonnet to the upper
cover plate and bolt the gooseneck
to the bonnet. Insert the gooseneck
pipe plug and tighten.
Logan 85-Ton Open Loop Power Swivel
20. Coat the packing elements (o-rings,
upper packing nut ring, packing,
spacer and lantern ring, plain
spacer ring, and packing bottom
ring) generously with Logan packing
lubricant and install them into their
respective packing nuts. Reassem-
ble the floating washpipe assembly
and packing in reverse of the dis-
assembly procedure outlined on
page 7. Reinstall the packing nuts,
retainers, and retainer screws, tight-
ening and locking the packing nuts
securely.
Securely tighten the packing nuts
and lock into place with their re
spective retainers and retainer
screws.
21. Lay the unit flat on a workbench
and insert the bail into the bail
pockets of the body. Align the bail
pins with the lock pin holes in the
body. Secure the bail by driving
the bails pins into place with a rub-
ber mallet. As the lock pins come
into alignment, drop a drift punch
through them, driving lightly to
laterally align them.
22. Drop the bail pin grooves into place
and snug-up with a hammer. Hang
up the swivel by the bail and sup-
port the underside of the swivel.
Using a medium weight (2-1/2 lbs)
sledge hammer, drive the pins in
straight through until the heads are
flush with the top of the bail pock-
ets.
23. Reattach all piping to the hydraulic
motors before reattaching the motor
guard.
