UNDER HOOD ................................................................................................................................................. 6
TECHNICAL DATA ........................................................................................................................................... 6
USE ........................................................................................................................................................ 8
BEFORE MACHINE START-UP ....................................................................................................................... 8
AFTER USING THE MACHINE ...................................................................................................................... 10
PUSHING/TOWING THE MACHINE .............................................................................................................. 10
MACHINE LONG INACTIVITY ....................................................................................................................... 10
FIRST PERIOD OF USE ................................................................................................................................ 10
EC CERTIFICATE OF CONFORMITY ................................................................................................ 16
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USER MANUAL
INTRODUCTION
MANUAL PURPOSE AND CONTENTS
The purpose of this Manual is to provide the operator with
all necessary information to use the machine properly in a
safe and autonomous way. It contains information about
technical characteristics, operation, machine storage,
maintenance, spare parts and safety conditions.
Before carrying out any procedure on the machine, the
operators and technicians in charge of the machine
maintenance must read this manual carefully. Contact an
authorised Nilfisk-Alto Service Center in case of doubts
regarding the interpretation of the instructions and for any
further information.
TARGET
This manual is intended for qualified operators and
technicians involved in the machine maintenance.
HOW TO KEEP THIS MANUAL
The User manual must be kept near the machine, inside
an adequate case, far from liquids and other substances
that can cause damage to it.
IDENTIFICATION DATA
The machine model and serial number can be found on
the plate (1, Fig. U) affixed to the frame, which can be read
by raising the hood (4).
The machine model year is written in the EC statement
and it is also indicated by the first two figures of the
machine serial number.
The petrol engine serial number and model are marked in
the positions (2 and 3, Fig. U).
This information is useful when ordering machine and
engine spare parts. Use the following table to write down
the machine and the petrol engine identification data for
any further reference.
OTHER REFERENCE MANUALS
Petrol Engine Use and Maintenance Manual, supplied
with the machine, which is to be considered an integral
part of this manual.
Moreover, the following manuals are available:
–Spare parts list (supplied with the machine).
–Service manual (that can be consulted at Nilfisk-Alto
Service Centers).
SPARE PARTS AND MAINTENANCE
All necessary operating, maintenance and repair
procedures must be carried out by qualified personnel or
by Nilfisk-Alto Service Centers (listed at the end of this
manual). Only original spare parts and accessories must
be used.
Call Nilfisk-Alto for service or to order spare parts and
accessories, specifying the machine model and serial
number.
CHANGES AND IMPROVEMENTS
Nilfisk-Alto constantly improves its products and reserves
the right to make changes and improvements at its
discretion without being obliged to apply such benefits to
the machine that were sold previously. Any change and/or
addition of accessory must be approved and performed by
Nilfisk-Alto.
MACHINE serial number .............................................
ENGINE model ............................................................
ENGINE serial number ................................................
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SAFETY
The following symbols indicate potentially dangerous
situations. Always read this information carefully and take
all necessary precautions to safeguard people and
property.
No accident prevention program is effective without the
total cooperation of the person responsible for the
machine operation. Most of the accidents that may occur
in a factory, while working or moving around, are caused
by failure to comply with the simplest rules for exercising
prudence. A careful and prudent Operator is the best
guarantee against accidents and is essential for
successful completion of any prevention program.
SYMBOLS
DANGER!
It indicates a dangerous situation with risk
of death for the Operator.
WARNING!
It indicates a potential risk of injury for
people.
CAUTION!
It indicates a caution or a remark related to
important or useful functions. Pay attention
to the paragraphs marked by this symbol.
NOTE
Consult the User manual before performing
any procedure.
GENERAL INSTRUCTIONS
Specific warnings and cautions to inform about potential
damages to people and machine are shown below.
DANGER!
–Remove the key from the ignition switch before
performing any maintenance/repair procedure.
–This machine must be used by properly trained and
authorised personnel only. Children or disabled
people cannot use this machine.
–Do not wear jewels when working near moving parts.
–Do not work under the lifted machine, if it is not
securely fixed.
–Do not operate the machine near toxic, dangerous,
inflammable and/or explosive powders, liquids or
vapours.
–Be careful: fuel is highly inflammable.
–Do not smoke or bring naked flames in the area
where the machine is refuelled or where the petrol is
stored.
–Do not fill the petrol tank beyond the upper limit mark
(1, Fig. T).
–After refuelling, check that the petrol tank cap is firmly
closed.
–If any petrol is spilled while refuelling, clean the tank
area and allow the vapours to evaporate before
starting the engine.
–Do not let fuel come into contact with your skin; do not
breathe fuel vapours. Keep out of reach of children.
–Do not incline the engine more than 20°; excessive
inclinations can provoke petrol leakages.
–Petrol engine exhaust gases contain carbon
monoxide, which is inodorous and colourless but
extremely dangerous. Do not inhale. Do not keep the
engine running in a closed area.
–Do not lay any object on the engine.
–Stop the petrol engine before performing any
operation on it. To avoid any accidental start,
disconnect the ignition spark plug cap.
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–Carefully read all the instructions before carrying out
any maintenance/repair procedure.
–Take all necessary precautions to prevent hair,
jewels and loose clothes from being caught in the
moving parts of the machine.
–Do not leave the machine unattended with the key
inserted in the ignition switch and the parking brake
disengaged.
–Do not use the machine on slopes with a gradient
exceeding the value shown on the machine.
–Do not wash the machine with direct or pressurised
water jets, or with corrosive substances. Do not use
compressed air to clean this type of machine.
–Do not use the machine in particularly dusty areas.
–While using this machine, take care not to cause
damage to other people, especially children.
–Do not put any can containing fluids on the machine.
–The storage temperature must be between 0°C and
+40°C.
–The machine operating temperature must be
between 0°C and +40°C.
–The humidity must be between 30% and 95%.
–Always protect the machine against the sun, rain and
bad weather, both under operation and inactivity
condition.
–Do not use the machine as a means of transport.
–Do not allow the brooms to operate while the machine
is stationary to avoid damaging the floor.
–In case of fire, possibly use a powder fire
extinguisher, not a water one.
–Do not bump into shelves or scaffoldings, particularly
where there is a risk of falling objects.
–Adjust the operation speed to suit the floor conditions.
–Do not tamper with the machine safety guards and
follow the ordinary maintenance instructions
scrupulously.
–Do not remove or modify the plates affixed to the
machine by the Manufacturer.
–In case of machine malfunctions, ensure that these
are not due to lack of maintenance. Otherwise,
request assistance from the authorised personnel or
from an authorised Service Center.
–In case of part replacement, order ORIGINAL spare
parts from an authorised Dealer or Retailer.
USER MANUAL
WARNING!
–To ensure the proper and safe operation of the
machine, have the scheduled maintenance, detailed
in the related chapter of this Manual, performed by
the authorised personnel or an authorised Service
Center.
–The machine must be disposed of properly, because
of the presence of toxic-harmful materials (oils,
plastics, etc.), which are subject to standards that
require disposal in special centres (see the Scrapping
chapter).
–If the machine is used according to the instructions,
the vibrations do not cause dangerous situations. The
machine vibration level is less than 2.5 m/s
1033-1995-08).
–While the petrol engine is running, the silencer warms
up; do not touch the silencer when it is hot to avoid
burns or fires.
–Running the engine with an insufficient quantity of
petrol can seriously damage the engine. Check the oil
level with the engine off and the machine on a level
surface.
–Never run the petrol engine without air filter, as the
engine could be damaged.
–Technical service operations on petrol engine must
be performed by an authorised Dealer.
–Use only original spare parts or equivalent for the
petrol engine. Using spare parts of lower quality can
seriously damage the engine.
–Be very careful when operating the machine at high
speeds: sudden steering could cause this
three-wheel machine to become unstable due to
weight distribution. Always reduce the speed before
steering.
2
(EN
UNPACKING
Upon delivery carefully check that the machine and its
packing, if any, have not been damaged during
transportation. In case of visible damages, keep the
packing and have it checked by the Parcel Service that
delivered it. Call the Carrier immediately to fill in a damage
claim.
Please check that the following items have been supplied
with the machine:
–Sweeper manual
–Petrol engine manual
–Spare Parts List
–No. 1 50 A fuse
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MACHINE DESCRIPTION
OPERATION CAPABILITIES
The sweeper is used to sweep dust or light debris on
smooth and solid floor, in civil or industrial environment,
under safe operation conditions by a qualified Operator.
CONVENTIONS
Forward, backward, front, rear, left or right are intended
with reference to the operator’s position, that is to say on
the driver’s seat with the hands on the handlebar (1, Fig.
C).
CONTROL PANEL DESCRIPTION
(See Fig. B)
1.Left control panel
2.Ignition switch
3.Hour counter
4.Horn switch
5.Filter-shaker switch
6.Manual vacuum switch (optional)
7.Working light switch (optional)
8.Emergency push-button
9.Control panel fixing screws
10. Right control panel
11. Forward/reverse gear switch
OUTSIDE VIEW
(See Fig. C)
1.Steering wheel
2.Steering column inclination adjusting lever
3.Vacuum activation/deactivation lever
4.Side broom lifting/lowering lever
5.Drive pedal
6.Service brake pedal
7.Parking brake lever (it acts on the front wheel)
7a. Lever in the position of brake engaged (rotated
backward)
7b. Lever in the position of brake disengaged (rotated
forward)
8.Front skirt lifting pedal
9.Can holder
10. Hood
11. Rear wheels on fixed axle
12. Front drive and steering wheel
13. Right side broom
14. Left side broom
15. Main broom
16. Left side skirt
17. Right side skirt
18. Front skirt
19. Rear skirt
20. Hopper
21. Hopper hook
22. Hopper handle
23. Removable door for main broom extraction
24. Main broom height left adjuster
25. Main broom height right adjuster
26. Main broom right door
27. Main broom right door fixing screws
28. Pivoting light (always on when the ignition switch is
turned to “I” position) (optional)
29. Driver's seat with safety microswitch
30. Additional hole for manual vacuum kit (optional)
31. Adjustable steering column
32. Working light (optional)
33. Side broom height adjusting block
34. Seat longitudinal position adjusting lever
35. Manual vacuum kit (optional)
36. Petrol tank cap
37. Petrol tap and engine choke lever compartment
38. Engine exhaust pipe
39. Petrol engine ventilating grid
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USER MANUAL
UNDER HOOD
(See Fig. U)
1.Serial number plate/technical data/EC certification
2.Petrol engine model
3.Petrol engine serial number
4.Hood (open)
5.Hood support rod
6.Petrol engine
7.Ignition spark plug
8.Engine choke lever
9.Petrol tap
10. Fuel tank
11. Fuel tank cap
12. Petrol engine air filter
13. Accelerator lever (adjusted by the Manufacturer: do
not tamper with it nor use it to change the engine
speed!)
14. Filling and engine oil level check plug
15. Engine oil drain plug
16. Petrol engine belt
17. Main broom belt
18. Main broom drive pulley
19. Vacuum fan
20. Petrol engine silencer
21. Batteries
22. Battery caps
23. Lamellar fuse box (services)
24. Circuit breaker
25. Starter and dynamo
26. Manual vacuum system (optional)
27. Switch for machine pushing
28. Battery installation diagram
29. Dynamo fuse
30. Engine air conveyor
(See Fig. V)
1.Petrol tap
(See Fig. W)
1.Engine choke lever
TECHNICAL DATA
GeneralValues
Machine length1,255 mm
Machine width (without side brooms)795 mm
Height (steering wheel with knob)1,173 mm
Working width (with/without side brooms)1,000/600 mm
Minimum ground clearance (skirts not
included)
Main broom sizeØ 265 mm x 600 mm
Side broom sizeØ 420 mm
Front drive and steering wheelØ 200 x 50 mm
Rear wheelsØ 250 x 50 mm
Total machine weight (with batteries)284.31 Kg
Maximum forward/backward speed5.5 Km/h / 4.4 Km/h
Gradeability16%
Hopper capacity36 L
Main broom and fan motor350W
Side broom motors60W
Drive motor400W
Filter-shaker motor12W
Cleaning rate (with main broom)3,060 m2/h
Cleaning rate (with main and side brooms)5,100 m
Sound pressure level (LpA)77.4 dB(A)
BatteriesValues
Battery voltage24V
Starter batteries2x12V/80 Ah
Petrol engineData
MakeHonda
ModelGX100
Displacement98 cm
Engine power2.2 kW
Specific petrol consumption327 g/kW-h
40 mm
2
/h
3
NOTE
For other petrol engine data/values, see User's
Manual.
Dust vacuuming and filteringValues
Dust filter (one side)3 m
Main broom compartment vacuum18.3 mm H2O
BK: Black
BU: Blue
BN: Brown
GN: Green
GY: Grey
OG: Orange
PK: Pink
RD: Red
VT: Violet
WH: White
YE: Yellow
ELECTRICAL FUSES
The following fuses are located under the hood (10, Fig.
C):
–Circuit breakers, which can be reset by pressing the
related key:
•Drive (24, Fig. U)
–Lamellar fuses, protected by a transparent plastic
cover, which protect the following circuits:
(23, Fig. U, from the top):
•F1 (10A): Main fuse (ignition switch circuit)
•F2 (25A): Filter-shaker motor
•F3 (40A): Manual vacuum (optional)
•F4 (15A): Services
•F5 (10A): Side broom motors
•F6 (25A): Spare fuse
•F7 (15A): Spare fuse
•F8 (10A): Spare fuse
(29, Fig. U):
•FC (50A): dynamo
ACCESSORIES/OPTIONS
In addition to the standard components, the machine can
be equipped with the following accessories/options,
according to the machine specific use:
–Main and side brooms with harder or softer bristles;
–Antistatic polyester or polyester BIA C dust filter;
–Manual vacuum;
–Working light;
–Pivoting light;
–Skirts of various materials.
For further information concerning the optional
accessories, contact Your Retailer.
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USER MANUAL
USE
WARNING!
On some points of the machine there are
some adhesive plates indicating:
– DANGER
– WARNING
– CAUTION
–NOTE
While reading this Manual, the Operator must pay
particular attention to these symbols.
Do not cover these plates for any reason and immediately
replace them if they are damaged.
BEFORE MACHINE START-UP
CAUTION!
Make sure that there are no open
doors/hoods and that the machine is in
normal operating conditions.
Make sure that the hopper (20, Fig. C) is
properly closed.
If the machine has not been used after
being transported, check that all the blocks
used for the transportation have been
removed.
1.If necessary, remove the cap (36, Fig. C) and refuel
the machine; if necessary to gain access to the cap
(36), move the seat (29) forward by using the
adjusting lever (34).
CAUTION!
Do not fill the petrol tank beyond the upper
limit mark (1, Fig. T).
2.Raise the hood (10, Fig. C) and turn the petrol tap (1,
Fig. V) to the ON position, then close the hood.
MACHINE START AND STOP
Starting the machine
1.Sit in the driver's seat (29, Fig. C) and, if it is
necessary for an easier access to the machine, pull
the lever (2, Fig. C) and push the steering column
(31) forward.
2.Pull the lever (2, Fig. C) and adjust the inclination of
the steering column (31) in order to reach the most
comfortable position.
3.In very cold weather only, turn the engine choke lever
(1, Fig. W) to the “closed” position (2) by introducing
your hand into the compartment (37, Fig. C), without
raising the hood (10, Fig. C).
4.Turn the ignition switch (2, Fig. B) to “II” and start the
petrol engine. When the engine starts, release the
ignition switch immediately.
CAUTION!
When starting the engine using the ignition
switch (2, Fig. B) do not press the
forward/reverse gear pedal (5, Fig. B).
CAUTION!
You cannot start the engine while the hood
(10, Fig. C) is open. A safety system
prevents the engine from starting.
CAUTION!
With the engine running, the main broom
rotates, while the side brooms don't move,
if lifted.
While the engine is running, the vacuum fan
too is operating.
5.After about 5 seconds the engine is running,
disengage the engine choke lever (1, Fig. W) by
introducing your hand into the compartment (37, Fig.
C), without raising the hood (10, Fig. C).
6.Disengage the parking brake by rotating the lever (7,
Fig. C) forward, that is from 7a to 7b position.
7.To sweep, start the machine with the hands upon the
steering wheel and press the pedal (5, Fig. C).
7a. The forward/reverse direction is selected with the
related switch (11, Fig. B) on the left control panel.
The drive speed can be adjusted from zero to its
maximum value by increasing the pressure exerted
on the pedal (5, Fig. C).
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NOTE
The seat (29, Fig. C) is equipped with a safety
sensor, which allows the machine to be moved
through the pedal (5, Fig. C) only when the
operator is seated in the driver's seat.
8.Activate the vacuum system by using the lever (3,
Fig. C).
9.Lower the side brooms (13 and 14, Fig. C) by
releasing and lowering the lever (4).
NOTE
The side brooms (13 and 14, Fig. C) can be
lowered and lifted even when the machine is
moving.
The side brooms do not rotate when they are
lifted, but they rotate when they are lowered.
10. Start the sweeping work, by keeping your hands on
the steering wheel (1, Fig. C) and pressing the pedal
(5).
Stopping the machine
1.To stop the machine, release the pedal (5, Fig. C).
To stop the machine more quickly, also press the
service brake pedal (6, Fig. C).
In case of emergency, press the emergency
push-button (8, Fig. B) to immediately stop the
machine. To deactivate the emergency push-button
(8) after pressing it, rotate it clockwise.
2.To stop the rotation of the side brooms (13 and 14,
Fig. C), lift them by using the lever (4).
3.To stop the rotation of the main broom (15, Fig. C),
the vacuum fan (19, Fig. U) and the petrol engine,
turn the ignition switch (2, Fig. B) to the “0” position.
4.Engage the parking brake by rotating the lever (7, Fig.
C) to 7a position.
5.Raise the hood (10, Fig. C) and close the petrol tap
(1, Fig. V), then close the hood again.
MACHINE OPERATION
1.Avoid stopping for a long time with the machine in the
same position and the brooms rotating: this could
create unwanted marks on the floor.
2.To collect light and bulky debris, lift the front skirt by
pressing the pedal (8, Fig. C); remember that while
the front skirt is lifted, the machine suction power
decreases.
CAUTION!
When operating on wet grounds, it is
essential to deactivate the vacuum system
by operating the lever (3, Fig. C) to prevent
the dust filter from being damaged.
3.For the machine proper operation, the dust filter must
be as clean as possible. To keep the dust filter clean
while sweeping, deactivate the vacuum system by
operating the lever (3, Fig. C), then press the
filter-shaker switch (5, Fig. B) for a short while.
After cleaning the filter, activate the vacuum system
by using the lever (3, Fig. C).
While working, repeat the operation every 10 minutes
on average (depending on the dustiness of the area
to be cleaned).
NOTE
When the dust filter is obstructed and/or the
hopper is full, the machine cannot collect dust
and debris.
4.The hopper (20, Fig. C) should be dumped after each
working period and whenever it is full (see the
procedure in the next paragraph)..
CAUTION!
In case the quantity of oil in the carter is
insufficient, the petrol engine has a warning
system to prevent damages to the engine.
Before the carter oil level goes below the
safety limit, the oil warning system
automatically stops the engine.
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USER MANUAL
HOPPER DUMPING
1.Stop the machine by releasing the forward/reverse
gear pedal.
2.Turn the ignition switch (2, Fig. B) to “0” position.
3.Disengage the hook (21, Fig. C) by pulling its inferior
end.
4.Remove the hopper (20, Fig. C) by using the handle
(22) and dump it in special containers.
5.Reinsert the hopper and fix it by using the hook (21).
6.The machine is ready to start working again.
AFTER USING THE MACHINE
After working, before leaving the machine:
1.Lift the side brooms by using the lever (4, Fig. C).
2.Deactivate the vacuum system by using the lever (3,
Fig. C).
3.Activate the filter-shaker by using the switch (9, Fig.
B).
4.Turn the ignition switch (2, Fig. B) to the “0” position
and remove the key.
5.Close the petrol tap (1, Fig. V) in the compartment
(37, Fig. C).
6.Dump the hopper (20, Fig. C) (see previous
paragraph).
7.Engage the parking brake by rotating the lever (7, Fig.
C) backward.
PUSHING/TOWING THE MACHINE
To easily push/tow the machine, proceed as follows:
1.Open the hood (10, Fig. C).
2.Turn the switch (27, Fig. U) to the “0” position and
close the hood (10, Fig. C).
3.Push or tow the machine.
4.After pushing/towing the machine, turn the switch
(27, Fig. U) back to the “I” position.
MACHINE LONG INACTIVITY
If you foresee that the machine will not be used for more
than 30 days, proceed as follows:
1.Check that the machine storage area is dry and
clean.
2.Disconnect the negative terminal from the batteries
(21, Fig. U).
3.Slightly lift the machine so that the skirts, the main
broom and the wheels do not touch the ground.
4.Treat the petrol engine according to the indications in
the related User Manual.
FIRST PERIOD OF USE
After the first 8 hours, check the fixing and connecting
parts of the machine for proper tightening; check the
visible parts for integrity and leakage;
After the first 20 hours of work, or after the first month,
replace the petrol engine oil (see the related manual).
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MAINTENANCE
The lifespan of the machine and its maximum operating safety are ensured by correct and regular maintenance.
The following chart provides the scheduled maintenance. The intervals indicated can be changed to suit working
conditions. These must be defined by the person in charge of the maintenance..
WARNING!
To carry out maintenance operations, switch off the machine (remove the key from the ignition switch)
and, if necessary, disconnect the battery. Moreover, carefully read the instructions in the Safety
chapter.
All scheduled or extraordinary maintenance operations must be performed by qualified personnel, or by an authorised
Service Center.
This Manual describes only the easiest and most common maintenance procedures.
NOTE
For other maintenance procedures included in the Scheduled Maintenance table, see the User's Manual for
the petrol engine and/or refer to the authorised Service Centers.
SCHEDULED MAINTENANCE TABLE
Maintenance operationOn delivery
Battery fluid level check (2)
Engine oil level check (2) (7)
Engine air filter check (2) (7)
Side and main broom height check
Dust filter cleaning and integrity check (2)
Engine oil change (7) (4) (7)
Engine air filter cleaning (5) (7)
Skirt height and operation check
Filter-shaker operation check (3)
Hood safety switch operation check
Main broom and drive belt visual inspection (3) (3)
Petrol engine ignition spark plug
check/cleaning
Petrol tank and filter cleaning (6)
Nut and screw tightening check (3) (1)
Petrol engine speed check (3)
Service and parking brake check and
adjustment
Main broom and drive belt replacement (3) (8)
Engine air filter replacement (5) (7)
Petrol engine ignition spark plug
replacement
Engine valve clearance check/adjustment (6)
Engine combustion chamber cleaning (6) (9)
Starter-dynamo and drive motor carbon
brush check and replacement
Petrol pipe check/replacement (6)
Every 10
hours (1)
(1): And after the first 8 running-in hours.
(2): or before use
(3): For the relevant procedure, refer to the Service Manual.
(4): Or every year
(5): Or more often in dusty areas
(6): maintenance operations to be performed by an authorized Honda Dealer, unless the Operator has the service equipment and data and
feels qualified for such operations
(7): For the related procedure, see the Petrol Engine User Manual
(8): If considered necessary by the person in charge for the maintenance
(9): or every 300 hours, if necessary.
First month or
after 20 hours
(1)
Every 50
hours (1)
Every 100
hours (1)
(7)
(3)
Every 200
hours (1)
(4) (7)
Every 400
hours (1)
(3)
Every 2
years
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USER MANUAL
MAIN BROOM HEIGHT CHECK AND
ADJUSTMENT
NOTE
Brooms of various hardness are available. This
procedure is applicable to all types of brooms.
1.Check that the main broom is at the correct height
from the ground, proceeding as follows:
– Drive the machine on a level ground;
– Keep the machine stationary and rotate the main
broom for a few seconds;
– Stop the main broom, then move the machine and
switch it off;
– Check that the main broom print (1, Fig. D), along
its length, is from 2 to 4 cm wide.
If the print (1) is not within specifications, it is
necessary to adjust the broom height, proceeding as
described in step 2.
2.Drive the machine on a level ground and engage the
parking brake (7, Fig. C).
3.Turn the ignition switch (2, Fig. B) to “0” position.
4.Loosen the knobs (1, Fig. E) on both sides of the
machine.
5.Move the broom height variation indicator (2) as
necessary on both sides of the machine by using the
knobs (1, Fig. E), then screw down the knobs (1).
NOTE
The indicator (2) must be at the same position
on both sides of the machine; the maximum
difference allowed is 2 notches to obtain the
print (1, Fig. D) from 2 to 4 cm as described in
step 1.
6.Perform step 1 again to check proper adjustment of
main broom ground clearance.
7.When the broom is too worn to be adjusted, replace it
as shown in the next paragraph.
CAUTION!
An excessive print (larger than 4 cm) of the
main broom can lead to the machine
malfunction and the overheating of the
moving parts, thus reducing machine life.
Be extremely careful when performing the
above-mentioned checks and always use
the machine according to the indicated
conditions.
MAIN BROOM REPLACEMENT
NOTE
Brooms of various hardness are available. This
procedure is applicable to all types of brooms.
CAUTION!
It is advisable to use protective gloves
when replacing the main broom because
there can be cutting debris between the
bristles.
1.Drive the machine on a level ground and engage the
parking brake (7, Fig. C).
2.Turn the ignition switch (2, Fig. B) to “0” position.
3.Loosen the knobs (1, Fig. E) on both sides of the
machine.
4.Move the broom height variation indicators (2, Fig. E)
until the broom is at the maximum ground clearance.
Screw down the knobs (1).
5.Open the hood (10, Fig. C).
6.On the left side of the machine, loosen the knob (3,
Fig. E).
7.Remove the broom door (1, Fig. F) by pulling it
upwards to disengage the retainers (2).
8.Remove the broom (1, Fig. G).
9.Check also that the entrainer hub (4, Fig. R) is free
from dirt or foreign materials (ropes, rags, etc.)
accidentally rolled up.
10. The new broom must be installed with the bristles
rows bent as shown in the figure H (top view).
11. Install the new broom and ensure that its mesh (1,
Fig. I) correctly fits into the related drive hub (4, Fig.
R). Check that the drive hub is free from dirt or foreign
materials (cords, rags, etc.) accidentally rolled up.
12. Reinstall the broom door (1, Fig. F), engaging the
retainers (2).
13. Screw down the knob (3, Fig. E).
14. Carry out the main broom height check and
adjustment, as described in the previous paragraph.
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SIDE BROOM HEIGHT CHECK AND
ADJUSTMENT
NOTE
Brooms of various hardness are available. This
procedure is applicable to all types of brooms.
1.Check the side broom height from the ground,
proceeding as follows:
– Drive the machine on a level ground and lower the
side brooms.
– Keep the machine stationary and rotate the side
brooms for a few seconds.
– Lift the side brooms, then move the machine and
switch it off.
– Check if the size and orientation of the prints left
by the side brooms are as shown in the figure (1
and 2, Fig. J). In case the prints are not within
specifications, it is necessary to adjust the broom
height, proceeding as described in step 2 below.
2.Disengage the lever (4, Fig. C) and rotate the block
(33) clockwise or counterclockwise to adjust the
broom height from the ground.
3.Perform step 1 again to check the proper adjustment
of the side broom height from the ground.
4.When the brooms are too worn to be adjusted,
replace them as shown in the next paragraph.
SIDE BROOM REPLACEMENT
NOTE
Brooms of various hardness are available. This
procedure is applicable to all types of brooms.
CAUTION!
It is advisable to use protective gloves
when replacing the side brooms because
there can be cutting debris between the
bristles.
1.Drive the machine on a level ground and engage the
parking brake (7, Fig. C).
2.Turn the ignition switch (2, Fig. B) to “0” position.
3.Introduce the hand inside the side broom and press
the tabs (1, Fig. K) inwards, then remove the broom
(2) disengaging it from the four pins (3).
4.Install the new broom engaging it on the pins (3) and
on the tabs (1).
5.Carry out the side broom height check and
adjustment, as described in the previous paragraph.
DUST FILTER CLEANING AND INTEGRITY
CHECK
NOTE
Besides the standard paper filter, polyester
filters are also available. The following
procedure is applicable to each type of filter.
1.Drive the machine on a level ground and engage the
parking brake (7, Fig. C).
2.Turn the ignition switch (2, Fig. B) to “0” position.
3.Remove the hopper hook (21, Fig. C).
4.Remove the hopper (20) by using the handle (22, Fig.
C).
5.Turn the handle (1, Fig. L) downwards (90°
approximately) and let the filter frame (2) rotate
outwards.
6.Pull out the dust filter (3) upwards.
7.In an appropriate outdoor area, clean the filter
shaking it on a level and clean surface, tapping the
side (1, Fig. M) opposite the wire gauze (2). Complete
the cleaning by means of compressed air (3) of max.
6 bars, blowing only from the side protected by the
wire gauze (2), at a minimum distance of 30 cm (see
figure).
According to the filter type, observe the following
cautions:
– Paper filter (standard): Do not use water or
detergents to clean it not to irreparably damage
the filter.
– Polyester filter (optional): To clean it, see the
above-mentioned instructions. If necessary, for a
better cleaning, it is allowed to wash the filter with
water and non-lathering detergents. This provides
better quality cleaning but reduces the life of the
filter, which will have to be replaced more
frequently. The use of inadequate detergents can
damage the filter.
8.Check the filter body for tears.
9.If necessary, clean the filter compartment rubber seal
(4, Fig. L) along its perimeter and check it for integrity.
If necessary, replace it.
10. Reassemble in the reverse order of disassembly.
NOTE
Reassemble the filter with the wire gauze (2,
Fig. M) facing the fan (19, Fig. U).
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SKIRT HEIGHT AND OPERATION CHECK
1.Drive the machine on a level ground that is suitable
for checking the skirt height.
Engage the parking brake (7, Fig. C).
2.Turn the ignition switch (2, Fig. B) to “0” position.
Side skirt check
3.Check the side skirts (16 and 17, Fig. C) for integrity.
Replace the skirts when they have cuts (1, Fig. N)
larger than 20 mm or cracks (2) larger than 10 mm
(for skirt replacement, refer to the Service Manual).
4.Check that the side skirt (16 and 17, Fig. C) height
from the ground is within 0 – 3 mm (Fig. O). If
necessary, adjust the skirt height, proceeding as
follows:
Left skirt:
– Raise the machine hood (10, Fig. C) and engage
the hood support rod (5, Fig. U).
– Loosen the knob (3, Fig. E) and remove the broom
left door (1, Fig. F), pulling it upwards to
disengage the retainers (2).
– Adjust the skirt (3, Fig. F) height by using its slots
(4).
– Reassemble in the reverse order of disassembly.
Right skirt:
– Remove the main broom, as described in the
related paragraph.
– Remove the belt (17, Fig. U) from the pulley (18);
to facilitate the operation, make the pulley (18)
rotate operating on the fan (19).
– Remove the screws (27, Fig. C) and the right door
(26) together with the belt (17, Fig. U).
On the machine, adjust the skirt (1, Fig. S) height
by using its slots (2).
– Reassemble in the reverse order of disassembly.
Front and rear skirt check
5.Remove the main broom, as described in the related
paragraph.
6.Check the front (1, Fig. R) and rear (2) skirts for
integrity.
7.Replace the skirts when they have cuts (1, Fig. N)
larger than 20 mm or cracks (2) larger than 10 mm
(for skirt replacement, refer to the Service Manual).
8.Check that:
– The front skirt (1, Fig. R) lightly touches the
ground or that it is not detached from ground (1,
Fig. P).
– The rear skirt (2, Fig. R) height from ground is
within 0 - 3 mm (1, Fig. O).
9.If necessary, adjust the skirt height by using the slots
(3, Fig. R).
10. Press the front skirt lifting pedal (8, Fig. C) and check
that the front skirt (1, Fig. Q) rotates upward of about
90° (as shown in figure); release the pedal and check
that the skirt does not remain in an intermediate
position but returns to its initial position. If necessary,
for the front skirt control cable adjustment or
replacement, refer to the Service Manual.
11. Reassemble in the reverse order of disassembly.
HOOD SAFETY SWITCH OPERATION
CHECK
While the engine is running, slightly raise the hood (10,
Fig. C) and check that the petrol engine stops
immediately.
If raising the hood (10) does not cause the engine to stop,
contact an authorised Service Center or Retailer.
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SAFETY FUNCTIONS
The machine is equipped with the following safety
functions.
EMERGENCY SWITCH
It is located in an easily accessible position (see 8, Fig. B);
it has to be pressed in case of emergency, to stop all the
machine functions.
HOOD SAFETY SWITCH
WARNING!
When it is necessary to open the hood for
service operations, be sure to remove the
key from the ignition switch.
It is activated when the machine hood is raised. It stops all
functions.
If the machine keeps operating when the hood is open,
contact an authorised Service Center or Retailer.
DRIVER'S SEAT MICROSWITCH
It is located inside the driver's seat and it does not allow
the machine drive system to operate if the operator is not
seated in the driver's seat.
TROUBLESHOOTING
TROUBLEREMEDY
Check the engine oil level (1)
Check the petrol tap for opening
Verify if there is petrol in the tank
The engine does not start by
turning on the ignition switch
The petrol engine stops during
operation
The side brooms do not rotate
The machine does not move
by pressing the pedal (5, Fig.
C).
Check if the hood is closed
Verify if the petrol reaches the
carburettor (1)
Verify if the spark plug produces a
spark (1).
Check the engine oil level (1)
Verify if there is petrol in the tank
Lower the side brooms
Check the fuse F5 in the box (23,
Fig. U) for integrity.
Check if the parking brake is
disengaged
Verify if the switch (27, Fig. U) is in
the “I” position
Check that the forward/reverse
gear pedal (5, Fig. C) is not
pressed while starting the machine
through the ignition switch (2, Fig.
B), or while the operator is sitting in
the driver's seat; the
forward/reverse gear pedal (5, Fig.
C) has to be pressed only after the
operator has sit in the driver's seat
and the machine has been started.
(1): For the related procedure, see the Petrol Engine User
Manual
For further information, refer to the Service Manual,
available at any Nilfisk-Alto Service Center.
SCRAPPING
Have the machine scrapped by a qualified scrapper.
Before scrapping the machine, always remove the
following materials:
–Polyester dust filter
–Main and side brooms
–Engine oil
–Plastic components and hoses
CAUTION!
The removed components must be
disposed according to the law in force.