42
Tubing
Check valve assembly (OUT)
Check valve assembly (IN)
is not drawn
Check valve assembly (IN)
1
3
2
3
2
Figure 5.16 Check Valve Assembly Removal and Attachment
If replacement of the check valve assembly is difficult while the pump head is
attached, refer to Figs. 5.2 ~ 5.4 and remove the pump head before replacing the
check valve assembly.
When replacement of the check valve assembly is performed while the pump head
is removed, make sure the pump head is held securely with an adjustable wrench,
as shown in Fig. 5.17, or in a vise.
Figure 5.17 Pump Head Secured Using an Adjustable Wrench