Legend for Figure 4-8
1.
Nut
36.
Packing
71.
Bearing Cone
2.
Cover
37.
Washer
72.
Bushing
3.
Gasket
38.
Nut
73.
Seal
4.
Spring
39.
Fluid Cylinder
74.
Sprocket
5.
Valve Assembly
40.
Frame
75.
Lockwire
6.
Screw
41.
Nut
76.
Screw
7.
Washer
42.
Gland
77.
Pin
8.
Insert
43.
Packing
78.
Crosshead
9.
Valve
44.
Junk Ring
79.
Bushing
10.
Valve Seat
45.
Stuffing Box
80.
Bushing
11.
Nut
46.
Gasket
81.
Connecting Rod
12.
Head
47.
Setscrew
82.
Key
1 3.
Gasket
48.
Nut
83.
Screw
14.
Capscrew
49.
Packing
84.
Plate
15.
Lockwasher
50.
Washer
85.
Gasket
16.
Plate
51.
Plug
86.
Fitting
17.
Deleted
52.
Screw
87.
Screw
18.
Gasket
53.
Cover
88.
Retainer
19.
Locknut
54.
Filler
89.
Gasket
20.
Piston Rod
55.
Gasket
90.
Seal
21.
Baffle
56.
Chain
91.
Retainer
22.
Piston Assembly
57.
Screw
92.
Housing
23.
Nut
58.
Plate
93.
Gasket
24.
Lock Ring
59.
Fitting
94.
Bearing
25.
End Plate
60.
Shim
95.
Seal
26.
Cup
61.
Bearing Cup
96.
Locknut
27.
Body
62.
Screw
97.
Lockwasher
28.
Clamp
63.
Plate
98.
Housing
29.
Liner
64.
Fitting
99.
Gasket
30.
Sleeve
65.
Gasket
100.
Bearing Cone
31.
Spacer
66.
Bearing Cup
101.
Bearing Cup
32.
Nut
67.
Shaft
102.
Seal
33.
Packing
68.
Bearing Cone
103.
Jackshaft
34.
Nut
69.
Bushing
104.
Bushing
35.
Gland
70.
Seal
NOTE
A valve seat puller is provided in mud pump tool set.
e.
Insert seat puller in valve seat (10) so that the puller shoulders are behind valve seat. Tighten the nut on puller,
slowly, until valve seat is disengaged. Lift valve seat (10) from fluid cylinder with puller.
NOTE
Before a new seat is installed, clean both the seat and hole in cylinder thoroughly to remove
any abrasive particles.
f.
Position new seat (10) in fluid cylinder then, using a block of wood and hammer, carefully tap the seat into place.
4-41
