Cleanliness:
Sealing a reciprocating piston rod is a very difficult task.
In order to create the best seal possible between the
piston rod and the packing, KEEP HANDS, PARTS, AND
TOOLS CLEAN DURING INSTALLATION.
Workmanship:
A compressor is a precision piece of equipment with very
close tolerances. Treat it as such. Never force parts on
or off.
Disassembly of Packing—Plain-style
Compressor Models HG601 and HG602
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.
Standard Packing Specification
a. Refer to Appendix D and identify the correct
model of compressor and note the order in which
the parts are removed.
b. Mark the top of the packing cartridge body to
facilitate later reassembly. Remove the four socket
head bolts that attach the packing cartridge
assembly to the adapter. It is not normally necessary
to remove the adapter from the crankcase in order
to disassemble or reassemble the packing.
c. Partially insert the bolts in the puller holes in the
outer end of the packing cartridge body and pull
outward to remove the entire 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.
d. Remove the outer retainer ring, solid packing breaker
(not included on 6" and 8" cylinders), packing cups,
all packing sets, backup rings, etc. from the cylinder
side of the packing cartridge body.
e. Remove the inner retainer ring, packing washer
and oil wiper ring set from the crankcase side of
the packing cartridge body.
4.
Purge Packing Specification
a. Refer to Appendix D and identify the correct
model of compressor and note the order in which
the parts are removed.
b. 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 crankcase in order to
disassemble or reassemble the packing.
c. 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.
d. Mark the top of the packing cartridge body to
facilitate later reassembly and proper alignment
with the packing cartridge cap. Pull outward to
remove the packing cartridge assembly from the
adapter and piston rod.
i.
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 over the piston rod.
ii.
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.
e. In addition to the packing cartridge cap previously
removed, remove the solid packing breaker (not
included on 6" and 8" cylinders), packing cups,
all packing sets, backup rings, purge packing
cups, cup spacer, packing spacer, oil wiper cup,
oil wiper ring set, etc. from the cylinder side of the
packing cartridge body.
Assembly of Packing—Plain-style Compressor
Models HG601 and HG602
1. Always use new O-rings, packing and oil wiper ring
sets during assembly.
2. Clean packing cartridge body and parts removed
from it during disassembly process.
3.
Standard Packing Specification
a. Refer to Appendix D and note the order in which the
parts are to be installed and their correct orientation.
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