10.
Inner Packing:
Remove the purge packing cup,
segmented packing, oil wiper cup, oil wiper ring set, etc.
from the cylinder side of the packing cartridge adapter.
Assembly of Packing—T-style Compressor
Models THG601 and THG602
1. Always use new O-rings, packing sets and oil wiper
ring sets during assembly.
2. Clean the packing cartridge body and parts removed
from it during disassembly process.
3. Refer to Appendix D and note the order in which the
parts are to be installed and their correct orientation.
4.
Inner Packing:
The inner packing set is most easily
assembled using Packing Assembly Tool 4794-X.
a. Set the end plate of the Tool 4794-X on a
horizontal work surface and remove the slotted
clamp of the tool.
b. Place a purge packing cup and a biased packing set
(TTs) onto the end plate of the tool and over the rod of
the tool. The cylinder side of the packing should face
the end plate of the tool such that the springs in the
biased packing set face toward the end plate.
NOTE:
The six springs in the biased packing sets are
very small and fit loosely, so extra care is needed
to keep from losing them or having them become
dislodged during assembly .
Place the oil wiper ring
cup and oil wiper ring set onto the purge packing cup.
A full inner packing set is now positioned on the end
plate of the tool. See figure 5.6C.
c. Orient the packing cartridge adapter so that the
open end (cylinder side) faces down. Being careful
not to dislodge the inner packing set previously
placed on the end plate of the tool, position the
packing cartridge adapter over the inner packing
set and end plate of the tool so that the rod of
the tool extends through the packing cartridge
adapter. Place the slotted clamp above the packing
cartridge adapter as shown in figure 5.6D.
d. Tighten the nut on the rod of the tool until the
inner packing set is fully drawn into the packing
cartridge adapter. See figure 5.6E.
e. Invert the packing cartridge adapter with the inner
packing set in it, and remove Tool 4794-X. Slide the
cup spacer into the packing cartridge adapter so
that it engages the inner packing set. See figure 5.6F.
f. Place an oil deflector ring inside the cup spacer
so that it is generally concentric with the inner
packing set.
Packing removal
tool (4789-X)
Lever
Engagement end of lever
Engagement end of tool
Packing cartridge body
Purge packing cup
Step 1
Figure 5.6A: Packing disassembly
Push lever in to actuate
Purge packing cup
Packing removal
tool (4789-X)
Step 2
Figure 5.6B: Packing disassembly
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