Operating instructions

4-6
8) Position yourself on the spring side of the valve discs.
9) Place two (or more) fi ngers on the fl at part of the spring.
10) Move the fi ngers toward the valve discs and into the spring valley between the previously located valve
discs.
11) By pulling back and up on the spring, the spring will pop out of the valley.
12) Pull back further to remove the spring.
To install spring:
1) Inspect the spring for damage. Do not attempt to repair a bent spring.
2) Position yourself on the spring side of the valve discs.
3) Position the spring over the valve body close to fi nal position. The wide spring segments will be located at the
wide valve discs. The curve of the spring will be down into the valve.
The long fl at close edge is inserted fi rst. This edge slides into a channel on the valve body.
The spring will slide off the top of the valve disc downward. The small projection on the end of the spring will drop
into the hole in the valve disc to provide secure positioning. Repeat for all spring segments.
NOTE: If a spring segment goes beyond the locating hole, it can be pulled back using a small fl at blade
screwdriver.
NOTE: In high pressure (80 psi and higher) applications, the standard single valve disc springs can be
installed on top of the one piece spring.
4) Rock the spring back and place the fl at edge into the channel.
5) Lower the springs until they rest on top of the valve discs.
A tool (phillips screwdriver) will be needed to push the springs in place.
The spring posts will guide the spring into place.
6) Hold the fl at part down with one hand.
7) Spread your fi ngers apart to cover the length and push down.
8) With the other hand use the tool to push down in the valley of each spring segment.
TOP PLATE
The top plate holds the valve discs in place during operation. This plate is removed to allow cleaning and repla-
ing the valve discs.
NOTE: The valve discs are made from a chloramine resistant severe service rubber. The valve discs will
usually not need to be changed. Before removing the top plate for valve disc service be certain that one
of the discs is not operating correctly.
To remove top plate:
1) Disconnect power to unit.
2) Remove cover.
3) Remove motor.
4) Remove camshaft.