_____________________________________________________________________________________________
Spring Air Systems Water Wash Ventilator Maintenance Manual 11/01
35
Detergent Pump
Replacing the diaphragm
1.
Remove cover from pump head, exposing four screws.
2.
Unscrew all four screws from pump head.
3.
Be sure the drive assembly is in full stroke, rotate knob assembly until yoke is in a forward position. This will take
pressure off diaphragm.
4.
Using your fingers, unscrew the diaphragm counter clockwise.
5.
When replacing old diaphragm with new, check to make sure the size of the spacers is the same (located under the
nut on the diaphragm).
6.
When reattaching the pump head, tighten the four screws a little at a time. Do not over squeeze the diaphragm.
NO Description:
Part
Number
1
Top valve fitting.
C-537-6V
2
Bottom valve fitting.
C-538-6V
3 Poly
tubing/opaque
5’.
C-335-6-5
4
PVC tubing/clear 5’.
C-334-6
5
T.I. Anti siphon valve fitting (optional)
T140-6V
6
Threaded Anti siphon valve, ¼ & ½” NPT
C-395HD-6V
Threaded Anti siphon valve, ¼” NPT
C-395-6V
7 Food
valve/screen.
C-340N-6V
8 Ceramic
Weight
C-346
