Multi Pro 1200/1250Page 6 -- 10Spray System
Service and Repairs
Suction Dampener
The suction dampener is mounted to the suction line at
the spray pump (Fig. 3) and is used to dampen suction
pulsesandsmoothsuctionflow.Duringpumpoperation,
the suction dampener diaphragm will move.
IMPORTANT: Make sure to neutralize and remove
chemicals from pump and hoses before loosening
andremovingspraysystemcomponents.Wearpro-
tective clothing, chemical resistant gloves, and eye
protection during repair.
A damaged suction dampener diaphragm will allow a
suction leak and will cause improper pump operation. If
the diaphragm is damaged, remove diaphragm from
dampener housing and replace it (Fig. 4).
1. Spray pump
2. Suction dampener
3. Suction hose
Figure 3
2
1
3
1. Spray pump
2. O--ring
3. Dampener housing
4. Diaphragm
Figure 4
1
2
3
4
NOTE: ARROWS SHOW FLUID
FLOW DIRECTION
Thread
Sealant
Thread
Sealant
RTV Silicone
Sealent
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