Corken D791 - Page 41

V-ring
Packing
Direction
Lower Packing
Specification
“R”
13
14
15
To Crankcase
16
Upper
Segmented
Packing
Set
5.1
1
2
3
4
6
3
4
6
3
4
6
3
4
5.1
6
9
7
8
5.1
5.1
Tangent
Tangent
Tangent
Tangent
Tangent
Tangent
Tangent
Tangent
10
11
12
11
13
14
15
11
10
17
Lower
V-ring
Packing
Set
Packing Assembly Bill of Materials
Ref
No.
Part No. Description
1.
3886 Packing barrel (3-1/4")(791 second stage)
3887 Packing barrel (6")(791 rst stage)
3926 Packing barrel (4-1/2")(891 only)
2. 3906 Crush gasket
3. 3817
Packing cup (Not included in 3810-X1
packing set)
4. 2-036_
a,c,d
Cup O-ring
5. 3810
Segmented packing
(radial—tangent) pair
5.1. 3814
Segmented packing
(tangent—tangent) pair
6. 3811 Back-up ring
7. 7002-025OC100A Screw (1/4-20 x 1" socket head)
8. 3885 Cartridge
9. 1732
b
Oil deector ring
10. 5000-175 Retainer ring
11. 1728 Washer
12. 1731 Spring
13. 1724 Male packing ring
14. 1725 V-ring packing
15. 1723 Female packing ring
16. 3810-X1
d
Segmented packing set
17. 1725-2X V-ring packing set
Identification of Packing Specification
Example: Model Number D891 K M4FBA
Packing Spec.
IMPORTANT: Identify and line up the rings before installing. Be sure
they face the way shown here and that the pin and hole are aligned
when assembled.
a
_ denotes O-ring code. See O-ring chart for details.
b
Deflector ring is loose within the packing cartridge until fitted on the
piston rod. Must be put in from the bottom of the cartridge.
c
Starting with S.N. NN51397.
d
Packing cup O-ring not included in packing set.
e
Registered trademark of the DuPont company.
Appendix E—D791 and D891 Packing Assembly Details
To Crankcase
Piston (Pressure) Side
Radial Cut
(without pin)
Segmented Packing for
Specification “J” & “K”
Tangent Cut
(with pin)
Back-up
ring
To Crankcase
Piston (Pressure) Side
Tangent Cut
(without pin)
Segmented packing for
Specification “J”, “K”, & “R”
Tangent Cut
(with pin)
Back-up
ring
Align pin
with hole
Align pin
with hole
Specification “R”
O-ring Code
A Buna-N
B Neoprene
®e
D Viton
®e
E PTFE
K Kalrez
®e
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