Niro Soavi S.p.A
TROUBLE
POSSIBLE CAUSE
REMEDY
3. Reduced flow rate • slipping belts • provide correct belts
tension (Section 4 -
MAINTENANCE)
• low main motor speed • verify the correct
motor speed (Section 1
– TECHNICAL
SPECIFICATIONS)
• leakage on plunger
packings
• replace (Section 4 -
MAINTENANCE)
• air into the product • eliminate air
• broken valve springs • replace (Section 4 -
MAINTENANCE)
4. Noisy compression
head
• broken springs • replace (Section 4 -
MAINTENANCE)
• not enough or too
high feeding pressure
• feed properly the
machine
• worn out pumping
valves
• replace (Section 4 -
MAINTENANCE)
• pumping valves not
working properly
• verify the valve
cleaning and wear
• air into the product • eliminate air
5. Noisy drive end • wear of bearings • check,
lubricate/grease and
eventually replace the
bearings
• loose plungers • tighten (Section 4 -
MAINTENANCE)
• not enough feeding
pressure
• feed properly the
machine
6. Noisy belt drive • slipping belts • provide correct belts
tension (Section 4 -
MAINTENANCE)
3C001E0C.DOC 3.8.2
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