Instruction Manual
D101640X012
CV500 Valve
June 2017
18
D
Knock or pry the bearing out, or
D
Use the valve drive shaft as a piston to drive the bearing from the valve body. To accomplish this, install the pipe
plug (key 29). Fill the bearing bore with a heavy grease and then insert the end of the shaft back through the valve
body and into the grease‐filled bearing. Protect the splined end of the shaft with, for example, a block of wood; then
strike the protected end. When the shaft is struck, it will act as a piston, pushing the grease into the bearing bore.
The grease will then force the bearing out of the bore and farther along the shaft. Soon, the bearing will be
positioned for easy removal.
15.
For NPS 10 and 12,
if the bearing (key 6) on the follower shaft requires replacement and cannot be removed by
hand, press it out using a ram with dimensions as given in figure 7. Press the bearing into the valve body cavity.
16. If used, remove the O‐rings (keys 19 and 20) from the bearings. Also, for NPS 3 through 8, remove the pipe plug
(key 29).
Assembly
Note
Before starting to assemble the valve components, place the valve body (key 1) on a flat surface with the retainer (key 5) facing
down as shown in figure 8. This orientation of the valve allows easier installation of the V‐notch ball.
1. Thoroughly clean the parts before assembly.
Table 8. Ram Dimension for Bearing Removal
VALVE
SIZE, NPS
A MAX.
MIN.
L
mm
Inches
mm
Inches
3
27.8
27.4
1.094
1.078
165
6.50
4
34.1
33.7
1.344
1.328
165
6.50
6
42.1
41.7
1.656
1.641
197
7.75
8
42.1
41.7
1.656
1.641
229
9.00
10
48.4
48.0
1.905
1.890
229
9.00
12
57.8
57.4
2.275
2.260
260
10.25
Figure 7. Ram Dimension for Bearing Removal
A3308
L
A
2. If O‐rings (keys 19 and 20) are used, apply a small amount of lubricant to the O‐rings so the bearings will easily slide
into the valve body. Insert the smaller O‐ring (key 20) inside the bearing and the larger O‐ring (key 19) around the
outside of the bearing.