Recommended Spare Parts; Troubleshooting - Nilfisk 3997 Manuel D'instructions

3997 - 3997C - 3997W - 3997WC

Recommended spare parts

The following is a list of spare parts that should be kept ready at hand in order to speed up maintenance operations:
■ primary filter
■ absolute filter
■ filter chamber gasket
■ filter gasket
■ main filter tightening clamp
■ dust bag
To order spare parts, please refer to the manufacturer's spare parts catalogue.
Problem
The vacuum cleaner suddenly stops
The vacuum cleaner performance has
decreased
Dust leaks from the vacuum cleaner
Electrostatic current on the vacuum
cleaner
GB
C31

Troubleshooting

Cause
The differential pressure switch (blue
indicator) activated
Clogged vacuum hose
Circuit breaker activation
Clogged primary filter
Clogged vacuum hose
The filter is torn
Inadequate filter
Non existent or inefficient grounding
16
Remedy
Shake the filter. Replace it if this is not
sufficient.
Check the vacuum hose and clean it.
Check the setting.
Check the motor electrical input. Contact
an authorized after-sales service centre if
necessary.
Shake the filter. Replace it if this is not
sufficient.
Check the vacuum hose and clean it.
Replace it with another of identical type.
Replace it with another of a suitable category
and check.
Check all ground connections. Especially check
the inlet.
01/2015