Assembly of Packing (T-Style)
1. Replace packing as required. The segmented packing
and cups are located in the packing barrel while the
V-ring packing is located in the packing box cartridge.
NOTE: Always use new O-rings when replacing
the packing.
2. Lower V-ring packing set:
NOTE: The instructions below are for packing
specification “G”. Depending on the packing
specification used in your compressor, the
order of assembly for the packing rings, V-ring
packing, washers and packing spring will vary.
Refer to Appendix E to view the V-ring packing
arrangements and follow the order of assembly
and V-ring direction. If you do not know the packing
arrangement used in your compressor, refer to
the model number identification codes listed in
Appendix A.
a. Clean and lightly oil the packing area inside the
packing box cartridge.
b. Insert the first retainer ring followed by a washer
through the bottom of the packing box cartridge.
c. Insert the packing spring followed by another
washer.
d. Insert a male packing ring followed by four V-rings
and one female packing ring. NOTE: Insert
packing rings and V-rings one at a time. Refer
to Appendix E for the proper direction of the
packing rings and V-rings.
e. Lastly, install and tightened the adjusting screw
until the PTFE locking device located on the side
of the adjusting screw is engaged with the first
thread of the packing box cartridge. DO NOT OVER
TIGHTEN! The PTFE locking device should engage
(slightly bent) the first thread but not break off.
3. Middle V-ring packing set:
a. Clean and lightly oil the packing area inside the
packing box cartridge.
b. Insert the second retainer ring followed by a washer
through the top of the packing box cartridge.
c. Insert a female packing ring followed by four
V-rings and one male packing ring. NOTE: Insert
packing rings and V-rings one at a time. Refer
to Appendix E for the proper direction of the
male and female packing rings and V-rings.
d. Insert a washer and a packing spring followed by
another washer.
e. Lastly, push in on the washer and insert the third
retainer ring.
f. Install two O-rings on the packing box cartridge as
shown in the T-Style Crosshead Guide Assembly
Details in Appendix E.
4. Segmented packing:
NOTE: The instructions below are for packing
specification “G”. Depending on the packing
specification used in your compressor, the order of
assembly for the segmented packing arrangement
(radial or tangent) will vary. Refer to Appendix E
to view the segmented packing arrangements. If
you do not know the packing arrangement used
in your compressor, refer to the model number
identification codes listed in Appendix A.
a. Clean the segmented packing cups and the area
inside the packing barrel.
b. Insert the segmented packing cups, segmented
packing pairs and backup rings one at a time in
the order shown in Appendix E.
c. Reattach the packing adapter to the packing barrel
using the four socket head screws.
d. Install two O-rings on the packing barrel as shown
in the T-Style Crosshead Guide Assembly Details
in Appendix E.
5. Install packing installation cone part number 3905 over
the threaded end of the piston rod.
6. Before installing the packing box cartridge over the
packing cone and piston rod, you must insert the oil
deflector ring through the side opening of the packing
box cartridge. The oil deflector ring should rest on top
of the lower packing set. Make sure the oil deflector
ring is centered over the piston rod opening before
sliding packing cartridge over the installation cone and
piston rod.
7. Install cages.
8. Install and tighten holddown screws with special
wrench.
9. Install packing barrels, noting the alignment of the
barrels as they sit on the crosshead guide. The valve
scallops on the barrels must align properly with the
valves in the cylinder.
10. Remove packing installation cone.
11. Replace cylinder, pistons, heads and cylinder cap. See
details in Section 4.4 for proper assembly of pistons.
12. Rotate unit by hand to ensure proper assembly.
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