17
17
12
12
13
14
15
16
Packing barrels
and cartridges
(For parts details,
see D891 packing
on previous pages).
O-ring Code
A
Buna-N
B
Neoprene
®b
D
Viton
®b
E
PTFE
K
Kalrez
®b
Ref
No.
Part No.
Description
Qty
1.
3922
Cylinder
1
2.
3442
Pipe plug (1/4" NPT)
6
3.
1054
Drain valve (lubricated models)
1
4.
1071
Nipple (1/4" x close)
1
5.
2-246_a
O-ring for cylinder
2
6.
7001-050NC175A
Bolt (1/2"- 13 x 1-3/4" hex head
gr 5)
8
7.
3793-2S
Flange (inlet/outlet)
2
8.
2-231_a
O-ring for flange
2
9.
3253
Roll pin
1
10. 2405-1
Crosshead guide
1
11. 1064
Elbow (1/4" NPT)
1
12. 7005-050175A
Bolt (1/2" 13 x 1-3/4" ferry head)
16
13. 1761
Gasket (crankcase)
1
14. 1760
Gasket (inspection cover)
1
15. 1721
Inspection cover
1
16. 7012-010NC025B Screw (10 - 24 x 1/4" Phillips hd.)
10
17.
2-231_a
O-ring
2
Crosshead Guide Bill of Materials
Appendix E—D891 Crosshead Guide Assembly Details
a
_ denotes O-ring code. See O-ring chart above for details.
b
Registered trademark of the DuPont company.
CAUTION: Always relieve pressure in the unit before attempting
any repairs.
NOTE:
Packing barrel installation:
1. Use packing installation cone #3905 on the piston rod.
2. Insert small barrel first, use finger holes to align slinger ring on to
the rod. Slip the packing barrel into place.
3. Align pin with slot in large packing barrel.
4. Slip large packing barrel in place.
45
