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82.321-M - Pulvasol 1 and 2 / Pulvigne
OPERATIONAL PROBLEMS
PRODUCT FOAMING AND PRESSURE DROP
IF YOU NOTE PROBLEMS, YOU SHOULD CONTACT YOUR BERTHOUD AGENT
ZERO FLOW
POSSIBLE CAUSES
- Suction vannofilter closed .......................................
- Suction vannofilter obstructed ................................
- Air is aspired ...........................................................
- Pump suction valves are dirty or attach to valve seats.
REMEDIES
- Open (figure 1, page 15).
- Remove filter cartridge and clean (fig. 9, page 25).
- Check condition of pipework (cracks, poor sealing
at clamps).
- Remove and clean (figure 13 or 14).
INSUFFICIENT FLOW
- Suction vannofilter is partly obstructed ...................
- Suction pipe tends to crumple ................................
- Air is aspired ...........................................................
- P.T.O. speed insufficient .........................................
- Nozzle type (diameter) and number is too large to
allow pump flow and pressure to reach selected
values .....................................................................
- Pistons are too slac ................................................
- Pump valve seat/valve assemblies in poor condition.
- Clean. Change mesh size if problem continues
(figure 9, page 25).
- Replace.
- Check condition of pipework (cracks, poor sealing
at clamps).
- Check and correct if necessary.
- Check and correct (Chapter Calculating boom flow
per minute, page 12).
- Retighten the diaphragms.
- Check and replace if necessary.
- At suction, the thick mix is an emulsion (air + water).
- If air intake ..............................................................
- At pump ..................................................................
- At delivery ...............................................................
- Check the return pipe (if air inlet).
- Check pipework.
- Vannofilter (figure 9, page 25).
- Pipe crumples.
- Vannofilter is dirty (figure 9, page 25).
- Check condition of springs and valves.
- Check that power take-off speed is correct.
- Leakage in circuit (e.g. parasitic return to lank).
Summary of Contents for PULVASOL 200
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Page 29: ...29 82 321 M Pulvasol 1 and 2 Pulvigne MAINTENANCE DIAGRAMS...
