Nilfisk 3707/10 LC 5PP [33/116] Hepa filter replacement

Nilfisk 3907/18 [33/116] Hepa filter replacement
How to disassemble and replace the main
and Hepa lters
WARNING!
When the vacuum cleaner is used to clean
up hazardous substances, the lters become
contaminated, thus:
work with care and avoid spilling the vacuumed
dust and/or material;
place the disassembled and/or replaced lter in a
sealed plastic bag;
close the bag hermetically;
dispose of the lter in accordance with the current
laws.
WARNING!
Filter replacement is a serious matter.
The lter must be replaced with one of identical
characteristics, lter surface and category.
Failing this, the vacuum cleaner will not operate
correctly.
Main lter replacement
WARNING!
Check the Class of the vacuum cleaner (L - M - H).
Take care not to raise dust when this operation is
carried out. Wear a P3 mask and other protective
clothing plus protective gloves (DPI) suited to the
hazardous nature of the dust collected. Refer to the
relative laws in force.
Before proceeding with this operation, turn o the machine
and remove the plug from the power socket.
Disassembly
Figure 12
Remove the hose (A) from the lower outlet.
Release stop (B) and unscrew lter shaker knob (C).
Release the two fastening latches (D) and remove lid (E).
Lift lter (F), unscrew clamp (G) and remove ring (H).
Unscrew cage (I) and turn the lter upside down.
Cut the plastic clamps (L) and detach the cage from
the lter.
Assembly
Fit the lter catch and retention ring of the old lter on
to the new one.
Insert cage (I) and x it to the lter by means of plastic
clamps (L) on the bottom of the lter itself.
Fit the lter into ltering chamber then mount lid (E) and
lock it in place with the two fastening latches (D).
Fit the lter shaker knob and lock it in the lowered position
by means of the stop so that the lter is kept stretched.
Fit the suction hose on the lower outlet.
Dispose of the lter in accordance with the laws in force.
HEPA lter replacement
Version for dust harmful for the health: Class H
WARNING!
Take care not to raise dust when this operation is
carried out. Wear a P3 mask and other protective
clothing plus protective gloves (DPI) suited to the
hazardous nature of the dust collected, refer to the
laws in force.
Replacing the upstream Hepa lter
Figure 13
Unscrew knob (A);
Remove cover (B);
Release knob lter (C), cover the lter (D) with a plastic
bag and remove everything;
Seal the bag, t the new lter and hermetically close
the cover.
[ NOTE ]
Standard EN 60335-2-69 prescribes inspections at regular
intervals or after all repairs or modications.
Inspecting and cleaning the motor cooling
fan
Periodically clean the motor cooling fan to prevent the electric
motor from overheating, particularly if the appliance is used in
a dusty place.
Seal inspection
Checking the condition of the hoses
Figure 14
Make sure that connecting hose hoses (A), (B) and (C) are in
a good condition and correctly xed.
If the hoses are damaged, broken or badly connected to the
unions, they must be replaced.
When sticky materials are treated, check for possible clogging
along hose (C), in outlet and on the bae in the ltering
chamber.
Scrape outside the outlet and remove the deposited waste as
indicated in gure.
Checking the lid seal
Figure 15
If seal (A) under lid (D) has become slack, unscrew screws
“B” that lock fastening latches (C) in place and allow them to
slide downwards until lid (D) closes perfectly.
Now tighten locking screws “B” (Fig. 15).
Replace seal “A” (Fig. 15) if an optimum seal cannot be
obtained.
07/2018
13
C65
GB
3707 - 3907 - 3907 L, M, H - 3907/18 - 3907/18 L, M, H
3707/10 - 3707/10 L, M, H - 3907 W - 3907 W L, M, H

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