Hale SPV - Manual (Page 13)

S
emi-Automatic
P
riming
V
alve
11
9. Remove the valve from the valve body.
10. Remove vacuum hose connection fitting
and service elbow from the valve body.
11. Carefully inspect all components of the
valve for damage and wear. The Hale
SPV repair kit (Hale P/N 546-1680-00-0)
contains a new diaphragm, valve and
seal ring. Always replace these
components when the valve is
disassembled. If the brass seat on the
valve body is damaged the Hale SPV
must be replaced.
12. During re-assembly of the valve use
thread locking compound (Loctite #290
or equal) to lock threads in place.
13. Apply a light coating of thread sealing
compound and install the service elbow
and vacuum hose connection fitting into
the valve body.
14. Insert the new valve into the valve body
from the side that attaches to the pump
or universal adapter.
15. Place the small end of the compression
spring over the boss in the valve body
around the valve.
WARNING: Parts under spring tension
can become projectiles and cause
serious injury. When removing or
installing these parts make sure they are
restrained and spring tension is released
slowly.
16. With the Hale SPV on a stable surface,
place the diaphragm plate over the
spring and press down to compress
spring. While holding diaphragm plate
down with spring compressed, install
#10-24 x
1 /
2
inch long screw into the
valve.
17. Place a new diaphragm on the valve
body and align screw holes.
18. Place the diaphragm cover over
diaphragm aligning matchmarks
ensuring the cover drain hole will be in
the correct position when the valve is
installed on the pump.
19. Install the 5/16-18 x 3 /
4
inch long cap
screws to hold the cover in place.
20. Apply a light coating of grease to the
seal ring then place strainer and new
seal ring into valve body. Install seal
ring, strainer and valve assembly on
pump (or universal adapter) over studs.
Secure in place using
7 /
16
-14 nuts.
Tighten nuts.
21. Connect the 3 /
4
inch (19 mm) ID vacuum
hose from the priming pump to the hose
connection fitting on the Hale SPV
assembly.
22. Test operation of the Hale SPV. Conduct
vacuum and hydrostatic tests in
accordance with department
procedures.