CHAMPION PP-28 Manual - Manual (Page 36)

28
COMPONENT REPLACEMENT (CONT.)
Disassembly/Reassembly of Asco Valve (cont.)
12. Position lip seal, flanged end outward, onto piston assembly. Install piston assembly with lip
seal into support in valve body cavity.
13. Replace piston spring, valve bonnet, and bonnet screws. Torque bonnet screws in a crisscross
manner to 144 ± 15 in-lbs [16.3 ± 1.7Nm].
14. If removed, replace valve seat with a small amount of thread compound on male threads to
avoid possible leaking. Torque valve seat 65 ± 15 in-lbs [7.3 ± 1.7Nm].
15. Replace solenoid base gasket, core assmebly, core spring, core guide, and solenoid base sub-
assembly. Torque solenoid base sub-assembly to 175 ± 25 in-lbs [19.8 ± 2.8Nm].
16. Install solenoid and make electrical hookup.
17. Restore water and power.
18. Check for proper operation.
Figure 12
Asco Solenoid Valve
valve seat *
body passage gasket *
body passage eyelet *
support
lip-seal *
piston assembly *
piston spring *
valve
bonnet
aspirator tube*
disc washer*
piston*
outer body gasket *
inner body gasket *
disc*
* Indicates that these
parts are included
in ASCO Rebuild Kit.
screw (6)
bonnet
valve
body
solenoid base
sub-assembly
core spring
solenoid base gasket *
core assembly *
core guide *
core assembly
core guide
core spring
Partial view showing
orientation of core guide,
core spring and core assembly
1 1/2”
One body gasket *
for 1” & 1 1/4” NPT
Valve constructions
NPT Construction Shown
*
COMPONENT REPLACEMENT