Corken 91 - Page 93

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Lower Packing
Specication
“J”
15
16
17
To Crankcase
Radial
Tangent
Radial
Tangent
Radial
Tangent
Tangent
Tangent
Upper
Segmented
Packing
Set
Lower
V-ring
Packing
Set
11
V-ring
Packing
Direction
Appendix E—Parts Details for D891 and FD891 Packing
Specification “J”
Packing—Bill of Materials
Ref
No.
Part No. Description Qty.
1. 3926 Packing barrel (4-1/2") 2
2. 2-238_
a, c
O-ring 2
3. 3906 Crush gasket 2
4. 3817
Packing cup (Not included in
3810-X1 packing set)
8
5. 2-036_
a, d
O-ring (cup) 8
6. 3810
Segmented packing
(radial—tangent) pair
6
6.1. 3814
Segmented packing
(tangent—tangent) pair
2
7. 3811 Back-up ring 8
8. 7002-025TP100A Screw (socket head, 1/4"–20 x 1") 8
9. 3885 Cartridge 2
10. 2-231_
a
O-ring 4
11. 1732
b
Oil deflector ring 2
12. 5000-175 Retainer ring 4
13. 1728 Washer 6
14. 1731 Spring 2
15. 1724 Packing ring (male) 2
16. 1725 -2 V-ring packing 8
17. 1723 Packing ring (female) 2
18. 3 810 -X1
e
Packing set (segmented) 2
19. 1725 -2X Packing set (V-ring) 2
Identification of Packing Specification
Example: Model Number FD891 J M4PFBANSNN
Packing Spec
To Crankcase
Piston (Pressure) Side
Radial Cut
(without pin)
Segmented Packing for
Specication “J”
Tangent Cut
(with pin)
Back-up
ring
To Crankcase
Piston (Pressure) Side
Tangent Cut
(without pin)
Segmented packing for
Specication “J”
Tangent Cut
(with pin)
Back-up
ring
Align pin
with hole
Align pin
with hole
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 material code. See material code 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
Insert O-ring into the groove in the bottom of the barrel.
d
Starting with S.N. NN51397.
e
Packing cup O-ring not included in packing set.
f
Registered trademark of the DuPont company.
WARNING
CAUTION: Always relieve pressure in the unit before attempting
any repairs.
Material Code
A Buna-N
B Neoprene
®f
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