21
10. Reassemble both valves using new parts as required. Sealing “O”-rings should
generally be replaced.
11. Reinstall both valve assemblies, taking care to ensure that they are correctly oriented
with balls above seats.
12. Tighten the tiebar bolts evenly, making sure the valve assemblies are assembled
squarely. Refer to
Appendix III
for torque values.
13. Check for leaks and retighten tiebar bolts as necessary. Re-check any piping
connections that may have been disturbed.
Figure 18
7.3 Oil Seals - General Description
The pump has four oil seals as follows:
Seal
Location
Pump shaft
Inside the pump head
Motor adapter
Inside the motor adapter, below the worm shaft coupling
Gearbox oil
Inside the screwed end play adjustment cap on the side of the
gearbox
Eccentric box
On the side of the gearbox where the eccentric shaft protrudes.
