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Pressure Dampener
The pressure dampener is mounted to the pressure line
at the spray pump (Fig. 4) and is used to smooth system
pressure pulsation. Adjust air pressure on the pressure
dampener from 12 to 15 PSI (.83 to 1.03 bar).
IMPORTANT: Any fluid in the pressure dampener
will include spray system chemicals so take neces
-
sary precautions when working with the dampener.
Use appropriate protective equipment: protective
clothing, chemical resistant gloves and eye protec
-
tion.
3
1
2
If fluid is present when pressure in the dampener is
checked, the diaphragm in the pressure dampener is
damaged and should be replaced.
Dampener Service (Fig. 5)
Figure 4
1. Spray pump 3. Pressure hose
2. Pressure dampener
IMPORTANT: Make sure to neutralize and remove
chemicals from pump and hoses before loosening
and removing spray system components.
1. Loosen and remove twelve (12) cap screws and nuts
that secure diaphragm between housings.
2. Remove diaphragm from dampener.
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3. Replace diaphragm and reassemble dampener.
2
4
5
1
6
7
3
Figure 5
1. Spray pump 5. Diaphragm
2. O–ring 6. Front housing
3. Hex nut (12 used) 7. Cap screw (12 used)
4. Rear housing 8. Air valve
Spray
System
Multi Pro 5700–D
Page 6 – 9
Spray System