Logan 85-Ton Open Loop Power Swivel Page 17 User Manual Download

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22. Remove the bail only when abso-

lutely necessary. Lay the bail and
swivel body down so the holes at
the bottom of the bail pockets in the
body can be reached. Set a 10-
inch-long dowel rod with a diameter
slightly smaller than the bail pocket
holes against the pin. Strike the
dowel with a hammer. Once the
grooved pin has been removed,
insert a rod in the pull pin hole. Use
a rubber mallet to loosen the bail
pin by tapping it in alternate direc-

tions. Pour penetrating oil around

  the pin to aid the loosening process.
  While pulling on the pin, repeat the
  loosening process until the pin is
  removed. Lift out the bail.

NOTE:

In the event hydraulic mo-

tors, hoses, or similar items are to be

stored or shipped for repair, all ports

and openings should be carefully

sealed to prevent foreign matter from

entering interior parts.

SWIVEL REASSEMbLY

Care should be taken to ensure that
no foreign material enters the inte-
rior machinery of the swivel. All major
repairs and reassembly should be con-
ducted in a clean, well-equipped shop.

In the event hydraulic motors, hoses, or
similar items are to be stored or shipped
for repair, all ports and openings should
be carefully sealed to prevent foreign
matter from entering.

NOTE:

All parts should be thorough-

ly cleaned, dried, oiled, and in good

operating condition. Never reuse the

gear lubricating oil drained from the

swivel. Always use new, fresh oil of

the recommended type and grade.

O-rings should never be reused. It is

also recommended that all oil seals

be replaced.

Logan 85-Ton Open Loop Power Swivel

1. Place the swivel on a suitable rack

(similar to the bracket on the skid
or trailer) that supports the swivel
on its bail pins.

2. Install component parts on the

stem:

a. Press final reduction gear back

on the stem and install groove
pin.

b. Press on upper stem bearing.
c. Install main thrust bearing.
d. Install stem lower bearing spacer.
e. Press on lower stem bearing

inner race.

f. Press on lower seal wear ring.

3. Install component parts onto shafts:

a. Install key and second reduction

gear onto final reduction pinion.

b. Press roller bearings onto each

end of final reduction pinion.

c. Press roller bearing on upper end

of second reduction pinion.

d. Press first reduction pinion lower

bearing onto first reduction

pinion.

4. With the stem lower bearing in

place, set the main stem through
the stem lower bearing into position
in the body.

5. Check the top face of the body,

making sure that the surface is
clean and free of burrs. Place a
gasket on the face of the body.

6. Place a set of three shims (one

each in thicknesses of .005", .007",
and .020") on the body face.

7. With the upper cover plate upright,

press the upper oil seal into posi-
tion. Press the outer race of the
stem upper bearing into the top
cover plate.

8. Position the upper cover plate over

the stem and into place on the
body. Insert cap screws with lock
washers into the upper plate and
tighten.

9. Place a small hydraulic jack under

the lower end of the stem and a
micrometer against the top of the
stem to detect and measure any
vertical movement (end-play). Apply
lift to the stem with the jack and
note any movement shown on the
micrometer.

10. Remove the jack, micrometer, and

the top cover plate. Remove the
shims and replace them with a
combination of shims that will allow

a sufficient total amount of end-play

between .004" and .005".

NOTE:

Do not tighten the cover

plate without sufficient shims or

over-tighten the upper plate cover

screws. Doing so will cause the bear-

ings to bind.

11. Press the second reduction pinion

lower bearing into the lower cover
plate. Set the retainer ring into posi-
tion above the bearing and press