Hepa Filter Replacement; Inspecting And Cleaning The Motor Cooling Fan; Seal Inspection - Nilfisk-Advance 3707/10 Instructions For Use Manual

How to disassemble and replace the main
and Hepa filters
WARNING!
When the vacuum cleaner is used to clean
up hazardous substances, the filters become
contaminated, thus:
■ work with care and avoid spilling the vacuumed
dust and/or material;
■
place the disassembled and/or replaced filter in a
sealed plastic bag;
■ close the bag hermetically;
■ dispose of the filter in accordance with the current
laws.
WARNING!
Filter replacement is a serious matter.
The filter must be replaced with one of identical
characteristics, filter surface and category.
Failing this, the vacuum cleaner will not operate
correctly.
Main filter 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 off 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 filter shaker knob (C).
■ Release the two fastening latches (D) and remove lid (E).
■ Lift filter (F), unscrew clamp (G) and remove ring (H).
■ Unscrew cage (I) and turn the filter upside down.
■ Cut the plastic clamps (L) and detach the cage from
the filter.
Assembly
■ Fit the filter catch and retention ring of the old filter on
to the new one.
■ Insert cage (I) and fix it to the filter by means of plastic
clamps (L) on the bottom of the filter itself.
■ Fit the filter into filtering chamber then mount lid (E) and
lock it in place with the two fastening latches (D).
■ Fit the filter shaker knob and lock it in the lowered position
by means of the stop so that the filter is kept stretched.
■ Fit the suction hose on the lower outlet.
■ Dispose of the filter in accordance with the laws in force.
07/2018
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

HEPA filter replacement

Version for dust harmful for the health: Class 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
laws in force.
Replacing the upstream Hepa filter
■ Unscrew knob (A);
■ Remove cover (B);
■ Release knob filter (C), cover the filter (D) with a plastic
bag and remove everything;
■ Seal the bag, fit the new filter and hermetically close
the cover.
Standard EN 60335-2-69 prescribes inspections at regular
intervals or after all repairs or modifications.
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
Make sure that connecting hose hoses (A), (B) and (C) are in
a good condition and correctly fixed.
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 baffle in the filtering
chamber.
Scrape outside the outlet and remove the deposited waste as
indicated in figure.
Checking the lid seal
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.
13
WARNING!
Figure 13
[ NOTE ]
Figure 14
Figure 15
GB
C65