ii. Position the packing cartridge cap on the
packing cartridge body, making sure the
previously made markings on each are aligned.
The holes in the packing cap should be aligned
with the corresponding holes in the packing
cartridge body.
i. Install a packing installation cone (Part no. 3905)
on threaded end of the piston rod
j. Install a new O-ring inside the adapter.
k. Carefully install the assembled packing cartridge
assembly with packing cartridge cap on the piston
rod and insert into the adapter. Be sure the marks
previously marked on the packing cartridge body
and cap are oriented up because most packing
cartridge bodies can only be installed in one
position. Attach the packing cartridge cap to the
adapter with the four socket head bolts.
l. Remove the packing installation cone.
m. Replace the cylinder, pistons and cylinder head
(along with adjustable head components, if any).
n. Rotate the unit by hand to insure proper assembly.
Disassembly of Packing—T-style Compressor
Models THG601 and THG602
1. Depressurize and open the compressor before
performing any tasks.
2. Remove the head (along with adjustable head
components, if any), pistons and cylinder.
3. Refer to Appendix D and identify the correct model
of compressor and note the order in which the parts
are removed.
4. Mark the top of the packing cartridge cap to facilitate
later reassembly. Remove the four socket head bolts
that attach the packing cartridge cap to the adapter.
It is not normally necessary to remove the adapter
from the distance piece or the distance piece from
the crankcase in order to disassemble or reassemble
the packing.
5. Partially insert the bolts in the puller holes in the outer
end of the packing cartridge cap and pull outward
to remove the packing cartridge cap from the rest of
the packing cartridge assembly, adapter and over the
piston rod. If the packing cartridge cap does not slide
out easily, it may be necessary to alternately turn the
bolts clockwise in the puller holes so that the bolts
engage the adapter and force the packing cartridge
cap to come out.
6. Mark the top of the packing cartridge body to facilitate
later reassembly. Pull outward to remove the packing
cartridge assembly from the adapter and over the
piston rod.
a.
2-3/4" and 3-1/4" Cylinders:
Using a pair of flat-
bladed screwdrivers or similar tools, engage the
annular groove on the outer end (cylinder side) of the
packing cartridge body and pry the packing cartridge
assembly from the adapter and piston rod.
b.
4", 5", 6" and 8" Cylinders:
Partially insert the
bolts in the puller holes in the outer end of the
packing cartridge body and pull outward to remove
the packing cartridge assembly from the adapter
and over the piston rod. If the packing cartridge
assembly does not slide out easily, it may be
necessary to alternately turn the bolts clockwise
in the puller holes so that the bolts engage the
adapter and force the packing cartridge assembly
to come out.
7. Separate the packing cartridge adapter from the
packing cartridge body by removing the four small
socket head screws. Remove the cup spacer by
sliding it out of the packing cartridge body or packing
cartridge adapter.
8.
Outer Packing
a. In addition to the packing cartridge cap previously
removed, remove solid packing breaker (not
included on 6" and 8" cylinders), packing cups,
packing sets, backup rings, packing spacer and
purge packing cup, etc. from the cylinder side of
the packing cartridge body.
b. If the packing components are not easily removable,
it may be necessary to use Corken Packing Removal
Tool 4789-X. Referring to figure 5.6A, orient the
packing cartridge body so that the open end
(cylinder side) faces down, and align the tool with
the center opening of the packing cartridge.
c. Insert Tool 4789-X into the packing cartridge body
until the engagement end of the tool is just above
the purge packing cup. See figure 5.6B.
d. Press the spring-loaded lever inward so that the
engagement end of the lever moves outward. While
still holding the lever in, place the engagement ends
of the tool and lever in contact with the purge packing
cup, and use a hammer or similar device to drive the
outer packing set from the packing cartridge body.
9.
Middle Packing:
Remove the packing cups, packing
sets, backup rings, packing spacer and purge packing
cup, etc. from the crankcase side of the packing
cartridge body. If necessary Packing Removal Tool
4789-X may be used to remove the middle packing
set in a manner similar to the outer packing set.
23
