Troubleshooting - Nederman A Serie Manual De Instrucciones

EN A - Vacuum Cleaners
7
Problem
If specified vacuum is not
reached.
Dust in exhaust air.
Water in exhaust air.
Abnormal noise level.
30

Troubleshooting

WARNING! Risk of personal injury.
• Disconnect vacuum cleaner from compressed air before any type of service
or transportation.
• Be cautious when performing maintenance; there is a crush risk with a
pneumatic cylinder and discharge valve.
•
Empty dust into a container or dust bag, see Figure 7.
• Do not place vacuum cleaner on an uneven or sloping surface.
• Always use proper protective equipment where there is a risk for exposure
to dust, see Figure 7.
• Wear an approved breathing mask, and do not spread dust when cleaning
or replacing filters, see Figure 7.
•
Always use proper lifting equipment and protective gear.
Fault
Clogged suction hose or inlet.
Clogged filter.
Leaking suction hose.
Leaking gaskets.
Discharge valve open.
Filter wrongly or not installed.
Filter defect.
Filter basket or float ball
wrongly or not installed.
Filter basket or float ball
defect.
Leaking gaskets.
Sound absorbing material
defect.
Solution
•
If specified vacuum is not reached, check all gaskets and connections.
•
Disconnect suction hose. Turn and suck in the opposite direction. If still
clogged, open it with a rod.
•
Clean ejector nozzles, see Figure 15.
•
Execute the vacuum test with suction inlet(s) closed.
•
For filter bag and cartridge filter cleaning, see Section 6 Maintenance.
•
NCF filter cleaning; check filter cleaning function by listening to noise from
blow-out valve. If not in operation, check quick coupling and function of
blow-out valve.
Replace suction hose.
Remove and replace damaged neoprene gaskets. Use suitable two-component
glue.
Close valve.
Check the filter and change if necessary.
Change filter.
Reattach filter basket or float ball.
Change.
Remove and replace damaged neoprene gaskets. Use suitable two-component
glue.
Dismantle the silencer hood and remove dirt. Replace damaged silencing
material.