Clarke BSW 28 User manual

Form No. 146 3084 000 - 09/2007
BSW 28
Operator’s Manual
Manual del operador
Manuel d’utilisation
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LISEZ CE MANUEL
English (2 - 19)
Español (20 - 37)
Français (38 - 56)
This book has important information for the use and safe operation of this machine. Failure to read
this book prior to operating or attempting any service or maintenance procedure to your Clarke
machine could result in injury to you or to other personnel; damage to the machine or to other
property could occur as well. You must have training in the operation of this machine before using it.
If your operator(s) cannot read this manual, have it explained fully before attempting to operate this
machine.
All directions given in this book are as seen from the operator’s position at the rear of the machine.
For new books write to: Clarke®, 2100 Highway 265, Springdale, Arkansas 72764.

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2Operator’s Manual - BSW 28
TABLE OF CONTENTS
Operator’s Manual 1
OPERATOR'S SAFETY INSTRUCTIONS 3
INTRODUCTION 6
HOW TO KEEP THIS MANUAL 6
IDENTIFICATION DATA 6
CHANGES AND IMPROVEMENTS 6
UNPACKING/DELIVERY 6
TECHNICAL DATA 7
MACHINE TRANSPORT PROCEDURES 8
SYMBOLS SHOWN ON THE MACHINE 8
MACHINE DESCRIPTION 9
OUTER AND INNER STRUCTURE 9
CONTROL PANEL 10
USE 11
BATTERY CHECK ON A NEW MACHINE 11
BEFORE MACHINE START-UP 11
MACHINE START AND STOP 11
MACHINE OPERATION 12
HOPPER EMPTYING 12
AFTER MACHINE USE 12
MACHINE STORAGE 12
FIRST PERIOD OF USE 12
MAINTENANCE 13
SCHEDULED MAINTENANCE TABLE 13
BATTERY CHARGER CABLE INTEGRITY CHECK 13
SIDE BROOM HEIGHT CHECK AND ADJUSTMENT 14
SIDE BROOM DISASSEMBLY/ASSEMBLY 14
MAIN BROOM HEIGHT CHECK AND ADJUSTMENT 15
MAIN BROOM DISASSEMBLY/ASSEMBLY 16
DUST FILTER CLEANING AND INTEGRITY CHECK, HOPPER GASKET CHECK 17
SKIRT HEIGHT AND OPERATION CHECK 18
BATTERY CHARGING 18
BSW 28 ACCESSORIES/OPTIONS 19
TROUBLESHOOTING 19
SCRAPPING 19
Parts List 57

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Operator’s Manual - BSW 28 3
OPERATOR'S SAFETY INSTRUCTIONS
DANGER: It indicates a dangerous situation with risk of death for the operator.
WARNING: It indicates a potential risk of injury for people or damage to objects.
CAUTION: It indicates a caution or a remark related to important or useful functions. Pay careful attention to
the paragraphs marked by this symbol.
DANGER! Before performing any maintenance/repair procedure, turn the main switch to “0” and, if
necessary, disconnect the battery.
DANGER! This machine must be used by properly trained and authorized personnel only. Children or
disabled people cannot use this machine.
DANGER! Keep sparks, flames and smoking materials away from the batteries.
DANGER! Do not wear jewelry when working near electrical components.
DANGER! Do not work under the lifted machine without supporting it with safety stands.
DANGER! Do not operate the machine near toxic, dangerous, flammable and/or explosive powders, liquids
or vapors.
WARNING! Before using the battery charger, ensure that frequency and voltage values, indicated on the
machine serial number plate, match the electrical mains voltage.
WARNING! Do not pull or carry the machine by the battery charger cable and never use the battery charger
cable as a handle. Do not close a door on the battery charger cable, or pull the battery charger
cable around sharp edges or corners. Do not run the machine on the battery charger cable.
Keep the battery charger cable away from heated surfaces.
WARNING! Do not charge the battery if the battery charger cable or the plug are damaged. The battery
charger cable must be replaced only by qualified technicians at Clarke Service Center.
WARNING! To reduce the risk of fire, electric shock, or injury, do not leave the machine unattended when it
is plugged in.
Before performing any maintenance procedure, disconnect the battery charger cable from the
electrical mains.
WARNING! If the machine is not working as it should, has been damaged, left outdoors or dropped into water,
return it to the Clarke Service Center.
WARNING! Do not smoke while charging the battery.
WARNING! To avoid electric shock, do not expose the machine to rain or other bad weather conditions, both
under operation and inactivity condition. Store the machine indoors, in a dry place.
WARNING! Do not allow to be used as a toy. Close attention is necessary when used near children.
WARNING! Use only as shown in this Manual. Use only Clarke's recommended accessories.
WARNING! Take all necessary precautions to prevent hair, jewelry and loose clothes from being caught by
the machine moving parts.

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4Operator’s Manual - BSW 28
WARNING! Do not leave the machine unattended if the main switch is not turned to “0” and without being
sure that it cannot move independently.
WARNING! Do not use the machine on slopes with a gradient exceeding the specifications.
WARNING! Do not wash the machine with direct or pressurized water jets, or with corrosive substances. Do
not use compressed air to clean this type of machine.
WARNING! While using this machine, take care not to cause damage to other people, and children especially.
WARNING! The machine storage temperature must be between +32°F and +104°F (0°C and +40°C).
WARNING! The machine operating temperature must be between +32°F and +104°F (0°C and +40°C).
WARNING! The humidity must be between 30% and 95%.
WARNING! Do not use the machine as a means of transport.
WARNING! Do not use the machine on slopes with a gradient exceeding the specifications (see Technical
Data paragraph).
WARNING! Do not allow the brooms to operate while the machine is stationary to avoid damaging the floor.
WARNING! In case of fire, use a powder fire extinguisher, not a water one.
WARNING! Do not bump into shelves or scaffoldings, especially where there is a risk of falling objects.
WARNING! Adjust the operation speed to suit the floor conditions.
WARNING! This machine cannot be used on roads or public streets.
WARNING! Do not remove or modify the plates affixed on the machine.
WARNING! Do not tamper with the machine safety guards and follow the ordinary maintenance instructions
scrupulously.
WARNING! If the machine is used according to the instructions, the vibrations are not dangerous. The
machine vibration level is less than 98.42 in/s2(2.5 m/s2) (98/37/EEC - EN 1033/1995).
WARNING! Use only brooms supplied with the machine and those specified in the Operator's Manual. Using
other brooms could reduce safety.
WARNING! In case of machine malfunctions, ensure that these are not due to lack of maintenance. Otherwise,
request assistance from the authorized personnel or from an authorized Service Center.
WARNING! Carefully read all the instructions before performing any maintenance/repair procedure.
WARNING! To ensure machine proper and safe operation, the scheduled maintenance shown in the relevant
chapter of this Manual must be performed by the authorized personnel or by an authorized
Service Center.

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Operator’s Manual - BSW 28 5
WARNING! If parts must be replaced, require ORIGINAL spare parts from a Dealer or authorized Retailer.
WARNING! The machine must be disposed of properly, because of the presence of toxic-harmful materials
(batteries, plastics, etc.), which are subject to standards that require disposal in special centers
(see Scrapping chapter).

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6Operator’s Manual - BSW 28
The BSW 28 Clarke's sweeper has been designed and built to clean (by sweeping and vacuuming) smooth and solid floors, in
civil and industrial environments and to collect dust and light debris under safe operation conditions by a qualified operator.
BSW 28 is equipped with:
– one side broom, which removes dust and debris on the machine front right end side (along footpaths, walls, etc.) and it
conveys them toward the main broom.
– one main broom, which removes and collects dust and debris that are then vacuumed into the hopper; the cleaning width
is 28 in (720 mm).
HOW TO KEEP THIS MANUAL
The Operator's Manual must be kept near the machine, inside an adequate case, away from liquids and other substances that
can cause damage to it.
IDENTIFICATION DATA
The machine model and serial number are marked on the label and can be read from the outside (AC, Fig. 2).
The machine model year is written in the Declaration of Conformity and it is also indicated by the first two figures of the machine
serial number.
This information is useful when requiring machine spare parts. Use the following table to write down the machine identification
data for any further reference.
CHANGES AND IMPROVEMENTS
Clarke 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 machines that were previously sold.
Any change and/or addition of accessories must be approved and performed by Clarke.
UNPACKING/DELIVERY
Upon delivery carefully check that the machine and its packing have not been damaged during transportation. In case of visible
damages, keep the packing and have it checked by the carrier 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:
1. Technical documents:
- Sweeper Operator's Manual
- Sweeper Spare Parts List
2. No. 1 vacuum system motor fuse (7.5 A)
INTRODUCTION
MACHINE Model_____________________
MACHINE Serial Number ______________

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Operator’s Manual - BSW 28 7
Item . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Values
Cleaning width (without side broom) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19.7 in (500 mm)
Cleaning width (with side broom). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28.3 in (720 mm)
Machine dimensions with folded handlebar and without
side broom (length x width x height) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39.3 x 31.4 x 24.4 in (998x797x621 mm)
Minimum height from the ground (skirts not included). . . . . . . . . . . . . . . . . . . . . . . . . .1.0 in (25 mm)
Main broom dimensions (diameter x length) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7.9 x 19.7 in (200 x 500 mm)
Side broom diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12.4 in (315 mm)
Main broom speed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .335 rpm
Side broom speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100 rpm
Gradeability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2%
Hopper capacity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15.8 US gal (60 L)
Machine weight (with standard battery). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .172 lbs (78 Kg)
Front wheel dimensions (diameter x length) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.0 x 1.3 in (75 x 32 mm)
Rear wheel dimensions (diameter x length) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11.8 x 1.8 in (300 x 45 mm)
Maximum drive speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.3 miles/h (3.7 km/h)
Sound pressure level at workstation (A Lpa). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59.3 dB(A)
Electrical components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Values
Electrical system voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 V
Standard battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 V, 86 AH@20, GEL
Battery charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 A
Main motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200W, 1500 rpm
Side broom motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 W
Vacuum system motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 W
Dust vacuuming and filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Values
Dust filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Polyester, 5-10 µm
Dust filter area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10.8 ft2(1.0 m2)
Main broom compartment vacuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.47 in H20 (12 mm H20)
TECHNICAL DATA

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8Operator’s Manual - BSW 28
How to load and unload the machine from a van or a truck
1. Check that the loading ramp is not longer than 8 feet (2.5 m) and not wider than 30 in (76 cm). Its thickness must be
adequate to support the machine and operators’ weight.
2. Check that the ramp is dry and clean.
3. Position the ramp properly.
How to Fasten the Machine Inside the Vehicle
4. Clarke recommends tying down the machine when transporting.
MACHINE TRANSPORT PROCEDURES
WARNING!
This machine is heavy. Machine transfer must be performed by qualified personnel only. Machine transfer on
steep ramps must be performed by two well-trained operators only. Always move it slowly. Do not turn the
machine on slopes. Do not leave the machine unattended on slopes. Loading ramp width must not be less than
30 in (76 cm).
WARNING!
Stop the machine on horizontal planes. When stopping the machine, always turn all the switches to the off
position.
SYMBOLS SHOWN ON THE MACHINE
WARNING:
Carefully read all instructions before performing any procedure.

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Operator’s Manual - BSW 28 9
OUTER AND INNER STRUCTURE
(See Fig. 1)
A. Drive control lever
When pulling it gradually towards the handlebar, the
machine starts. Drive speed is increased by pulling the
lever further.
B. Handlebar
C. Handlebar adjusting knobs
D. Filter shaker knob
E. Hopper
F. Front steering wheel
G. Side broom
H. Side broom lifting/lowering lever
I. Side broom height adjusting knob
J. Main broom
K. Main broom height adjusting knobs
L. Rear driving wheels
M. Can holders
N. Battery charger cable
O. Battery charger cable housing
P. Side broom motor circuit breaker
Q. Main motor circuit breaker
MACHINE DESCRIPTION
R. Battery
S. Dust filter
T. Side broom motor
U. Main motor
V. Drive system gear (by clutch)
W. Vacuum fan
X. Battery charger
Y. Vacuum system motor lamellar fuse (7.5 A)
Z. Hood
AA. Hopper upper handle
AB. Hopper lower handles
AC. Serial number plate/technical data/conformity
certification
AD. Side skirts
AE. Front skirt
AF. Rear skirt
AG. Control panel
AH. Drive control lever adjuster
Figure 1

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10 Operator’s Manual - BSW 28
CONTROL PANEL
(See Fig. 2)
A. Main switch to turn on the vacuum system, the main broom and the side broom.
- When turned to “0” the machine is off
- When turned to “I” the vacuum system and main broom are turned on
- When turned to “II”, the vacuum system, main broom and side broom are turned on
B. Charged battery warning light (green)
When it is on, and the machine is running, it means that the battery is charged; residual autonomy depends on battery capacity
and working conditions.
When it is on, and the battery is charging, it means that the charging cycle has been completed and the battery is charged.
C. Semi-discharged battery warning light (yellow)
When it is on, and the machine is running, it means that the battery is nearly discharged; residual autonomy is 10 minutes
approximately.
When it is on and the battery is charging, it means that the charging cycle is nearly completed and the battery is nearly charged.
D. Discharged battery warning light (red)
When it is on, and the machine is running, it means that the battery is discharged; the autonomy is over, the battery must be
recharged (see the procedure in Maintenance chapter).
When it is on and the battery is charging, it means that the charging cycle is in progress.
Figure 2

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Operator’s Manual - BSW 28 11
While reading this Manual, the operator must pay particular
attention to these symbols.
Do not cover these labels for any reason and immediately
replace them if damaged.
BATTERY CHECK ON A NEW MACHINE
The machine is supplied with a standard 12 V, 86 AH@20,
GEL battery (which does not require maintenance).
BEFORE MACHINE START-UP
1. Make sure that there are no open doors/hoods and that
the machine is in normal operating conditions.
2. If the machine has not been used after being transported,
check that all the blocks used for the transportation have
been removed.
3. Check that side and main broom are installed, otherwise
install them (see the procedure in Maintenance chapter).
MACHINE START AND STOP
Machine start
1. Adjust the handlebar (A, Fig. 3) to reach a comfortable
position, by loosening the knobs (B). When the
adjustment is completed, tighten the knobs.
2. To use the main broom (C, Fig. 3) only, turn the main
switch (D) to “I”.
To use the side broom (E) too, turn the main switch (D) to
“II”.
Check that the green warning light (F) turns on (charged
battery).
If the yellow (G) or red warning light (H) turns on, turn the
main switch (D) back to “0” and charge the battery (see
the procedure in Maintenance chapter).
3. Lower the main broom (E, Fig. 3) by disengaging the
lever (I) and by pushing it forward.
USE
WARNING:
On some points of the machine there are some
adhesive labels indicating:
– DANGER
– WARNING
– CAUTION
– CONSULTATION
NOTE:
The side broom (E) can be lifted and lowered even if
it is turned on.
4. Start sweeping by grasping the handlebar (A) and pulling
the drive control lever (J) gradually.
Machine stop
1. Release the drive control lever (J) to stop the drive
system.
2. Turn off the vacuum system and the brooms, by turning
the main switch (D) to “0”.
3. Lift the side broom (E) by pulling the lever (J) backwards
and by engaging it to the fastener.
Figure 3

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12 Operator’s Manual - BSW 28
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. For machine proper operation, the dust filter must be as
clean as possible. Therefore the filter shaker must be
used at regular intervals (every 10 minutes, but this
interval may vary according to the floor conditions),
according to the following procedure.
– Stop the machine and turn the main switch (A, Fig. 4)
to “0”.
– To shake the filter, move the filter shaker knob (B) to
the right and then to the left several times.
– Turn the main switch (A) to “I” and start sweeping
again.
3. The hopper (C, Fig. 4) should be emptied after each
working cycle and whenever it is full.
HOPPER EMPTYING
1. Stop the machine and turn the main switch (A, Fig. 4) to
“0”.
2. Remove the hopper (C) by using the handles (D) and (E),
then empty it at the waste collection centre.
3. Install the hopper (C).
4. The machine is ready to start working again.
AFTER MACHINE USE
After working, before leaving the machine:
1. Turn the main switch (A, Fig. 4) to “0”.
2. Turn on the filter shaker with the knob (B).
3. Empty the hopper (C) (see the procedure in the previous
paragraph).
4. Lift the side broom (F, Fig. 4) by pulling the lever (G)
backwards and by engaging it to the fastener.
5. Make sure that the machine cannot move independently.
6. Charge the battery (see the procedure in Maintenance
chapter).
MACHINE STORAGE
If the machine is not going to be used for more than 30 days,
proceed as follows:
NOTE:
When the dust filter is clogged, the machine cannot
collect dust and debris anymore.
CAUTION:
Do not work on wet floors to prevent the dust filter
from being damaged.
NOTE:
When the hopper is full, the machine cannot collect
dust and debris anymore.
NOTE:
The machine cannot operate when the hopper is
removed.
1. Perform the daily maintenance procedures (see the
previous paragraph).
2. Check that the machine storage area is dry and clean.
3. Slightly lift the machine so that the skirts, the main broom
and the wheels do not touch the ground.
FIRST PERIOD OF USE
After the first 8 hours, check the machine fastening and
connecting parts for proper tightening, and check the visible
parts for integrity and leakage.
Figure 4

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Operator’s Manual - BSW 28 13
The lifespan of the machine and its maximum operating safety are ensured by correct and regular maintenance.
The following table provides the scheduled maintenance. The intervals shown may vary according to particular working
conditions, which are to be defined by the person in charge of the maintenance.
This Manual describes only the easiest and most common maintenance procedures.
SCHEDULED MAINTENANCE TABLE
(*): For the relevant procedure, see the Service Manual.
(1): And after the first 8 hours.
MAINTENANCE
WARNING: All maintenance procedures must be performed by qualified personnel, or by an authorized
Service Center.
WARNING: Maintenance procedures must be performed:
– With the machine switched off
– With the battery disconnected (if required)
– With the battery charger cable disconnected from the electrical mains
Moreover, read carefully the instructions in the Operator's Safety Instructions chapter before
performing any maintenance procedure.
Procedure Every 10
hours
Every 50
hours
Every 200
hours
Every 400
hours
Battery charger cable integrity check
Side and main broom height check and adjustment
Skirt height and operation check
Dust filter cleaning and integrity check
Hopper gasket check
Filter shaker operation check (*)
Drive belt and clutch visual inspection (*)
Drive system belt tensioner adjustment (*)
Nut and screw tightening check (*) (1)
Motor carbon brush check or replacement (*)
BATTERY CHARGER CABLE INTEGRITY CHECK
Carefully check the battery charger cable (A, Fig. 5) and the
relevant plug (B) for cuts, wear and other damages.
If necessary, have them replaced by Clarke Service Center.
Figure 5

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14 Operator’s Manual - BSW 28
SIDE BROOM HEIGHT CHECK AND ADJUSTMENT
1. Check the side broom height according to the following
procedure:
– Drive the machine on a smooth and level ground, and
lower the side broom.
– Keep the machine stationary and rotate the side
broom for few seconds.
– Turn off the side broom by pressing the switch (A, Fig.
6), then lift it and move the machine.
– Check that the side broom print is as shown in the
figure (A, Fig. 7): the side broom must touch the
ground along a circle arc ranging from “10 o'clock”
position to “3 o'clock” position.
– If the print is not as specified, adjust the broom height
as shown in step 2.
2. Turn the knob (B, Fig. 6) clockwise or counter-clockwise
to adjust the broom height from the ground.
3. Perform step 1 again to check the proper adjustment of
the side broom height.
4. When the broom is too worn to be adjusted, replace it as
shown in the next paragraph.
SIDE BROOM DISASSEMBLY/ASSEMBLY
1. Drive the machine on a smooth and level ground.
2. Turn the main switch (A, Fig. 6) to “0”.
3. Lift the side broom.
4. Loosen the knob (A, Fig. 8) inside the side broom, then
remove the broom (B) by disengaging it from the pins (C).
5. Install the new broom on the machine engaging it on the
pins (C), then tighten the knob (A).
6. Adjust the side broom height as shown in the previous
paragraph.
CAUTION:
It is advisable to wear protective gloves when
replacing the side broom because there can be
sharp debris between the bristles.
Figure 6
Figure 7
Figure 8

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Operator’s Manual - BSW 28 15
MAIN BROOM HEIGHT CHECK AND ADJUSTMENT
1. Check the main broom height according to the following
procedure:
– Drive the machine on a smooth and level ground.
– Keep the machine stationary and rotate the main
broom for a few seconds.
– Turn off the main broom by pressing the switch (A, Fig.
9), then move the machine.
– Check that the main broom print (A, Fig. 10), along its
length, is 1.2 - 2 in (3 - 5 cm) wide.
– If the print (A) is not within specifications, adjust the
broom height as shown in step 2.
2. Turn the main switch (A, Fig. 9) to “0”.
3. On both sides of the machine, loosen the knob (A, Fig.
11).
4. Grasp the support (B, Fig. 11) on the points (C) and move
it outward, then lift it or lower it to change the main broom
height; for height variation, refer to the indicator (D). Then
tighten the knob (A) on both sides of the machine.
5. Perform step 1 again to check proper adjustment of main
broom height.
6. When the broom is too worn to be adjusted, replace it as
shown in the next paragraph.
CAUTION:
An excessive print (larger than 2 in (5 cm)) of the
main broom can lead to machine malfunction and
overheating of its moving and electrical parts, thus
reducing machine life.
Pay careful attention when performing the
above-mentioned checks, and always use the
machine according to the instructions.
Figure 9
Figure 10
Figure 11

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16 Operator’s Manual - BSW 28
MAIN BROOM DISASSEMBLY/ASSEMBLY
1. Drive the machine on a smooth and level ground.
2. Turn the main switch (A, Fig. 12) to “0”.
3. Remove the hopper (B, Fig. 12).
4. On the left side of the machine, loosen the handwheels
(A, Fig. 13) completely.
5. Remove the door (A, Fig. 14) by grasping it on the points
(B).
6. Grasp the main broom (A, Fig. 15) on the points (B) and
(C), then disconnect it from the drive hub (D) by pulling it
in the direction shown by the arrow (E); then remove it in
the direction shown by the arrow (F).
7. Install the new broom with the bristles rows (A) inclined
as shown in the figure.
8. Install the new broom by performing steps 3 to 6 in the
reverse order.
9. Adjust the main broom height as shown in the previous
paragraph.
Figure 12
CAUTION:
It is advisable to wear protective gloves when
replacing the main broom because there can be
sharp debris between the bristles.
Figure 13
Figure 14
Figure 15

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Operator’s Manual - BSW 28 17
DUST FILTER CLEANING AND INTEGRITY CHECK,
HOPPER GASKET CHECK
1. Drive the machine on a level ground.
2. Turn the main switch (A, Fig. 16) to “0”.
3. Remove the hopper (B, Fig. 16).
4. Loosen the knobs (A, Fig. 17).
5. Grasp the dust filter (B, Fig. 17) as shown in the figure.
6. Remove the dust filter by turning it in the direction shown
by the arrow (A, Fig. 18) to disengage it from the pins (B),
then lower the filter to disengage it from the filter shaker
combs (C).
7. Remove the filter (A, Fig. 19) from the frame (B) by
disengaging the rubber bands (C).
8. In an appropriate outdoor area, clean the filter by shaking
it on a level and clean surface, tapping the side (D, Fig.
19) opposite to the gasket (E).
Complete the cleaning procedure by using compressed
air (F) at maximum 90 PSI (6 Bars), blowing only from the
side of the gasket (E), at a minimum distance of 12 in (30
cm).
Filters can also be washed with water and a mild
detergent.
Check the filter body for tears. If necessary, replace it.
9. Clean the bearing surface of the filter rubber gasket (E,
Fig. 19) and check it for integrity and sealing capabilities.
If necessary, replace the filter.
10. Clean the bearing surface of the hopper gasket (D, Fig.
18) and check it for integrity and sealing capabilities. If
necessary, replace it.
11. Assemble the components in the reverse order of
disassembly.
Figure 16
NOTE:
Assemble the filter with the gasket (E, Fig. 19)
positioned as shown in the figure.
Figure 17
Figure 18
Figure 19

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18 Operator’s Manual - BSW 28
SKIRT HEIGHT AND OPERATION CHECK
1. Drive the machine on a smooth and level ground that is
suitable for checking the skirt height.
2. Turn the main switch (A, Fig. 21) to “0”.
3. Check that the height from the ground of the side skirts
(A and B, Fig. 20) is 0 - 0.08 in (0 - 2 mm).
Check the skirts for integrity, cuts or tears, which can
reduce the machine vacuum capabilities.
If necessary replace the side skirts (see the procedure in
the Service Manual).
4. Check that the front and rear skirts (C and D, Fig. 20)
slightly rub on the ground. Check the skirts for integrity,
cuts or tears, which can reduce the machine vacuum
capabilities. Note that the front skirt has typical vertical
cuts (E). If necessary replace the front and rear skirts
(see the procedure in the Service Manual).
BATTERY CHARGING
1. Drive the machine to the appointed recharging area.
Make sure that the machine cannot move independently.
2. Turn the main switch (A, Fig. 21) to “0”.
3. Remove the battery charger cable (B, Fig. 21) from the
housing (C) and connect it to the electrical mains.
4. While charging the battery, the red warning light (D, Fig.
21) and the yellow warning light (E) turn on in sequence.
When the green warning light (F) turns on, the battery is
charged.
5. Disconnect the battery charger cable (B) from the
electrical mains and place it on the housing (C).
CAUTION:
Before connecting the battery charger cable (B, Fig.
21) to the electrical mains, check that the mains
voltage (Volt) and frequency (Hz) match the values
shown on the serial number plate (G, Fig. 21).
In case of doubt, do not connect the plug to the
electrical mains, but contact the qualified personnel.
NOTE:
When the battery charger is connected to the
electrical mains, all machine functions are
automatically disabled.
Figure 20
Figure 21

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Operator’s Manual - BSW 28 19
In addition to the standard components, the machine can be equipped with the following accessories/options, according to the
machine specific use.
For further information concerning the optional accessories, contact an authorized Retailer.
ACCESSORIES/OPTIONS
– Brooms of different materials
For Part Numbers, see the Spare Parts List.
For further information, refer to the Service Manual available at any Clarke Service Center.
Have the machine scrapped by a qualified scrapper.
Before scrapping the machine, remove and separate the following materials, which must be disposed of properly according to
the Law in force:
– Battery
– Brooms
– Plastic hoses and components
– Electrical and electronic components (*)
(*) Refer to the nearest Clarke Center especially when scrapping electrical and electronic components.
BSW 28 ACCESSORIES/OPTIONS
TROUBLESHOOTING
TROUBLE POSSIBLE CAUSE REMEDY
The machine does not start when
turning the main switch to “I” or “II”.
There is an open in the fuse (Q, Fig. 1).
Reset the fuse by pressing the relevant
button. If the fuse cannot be reset, wait
a few minutes to allow the main motor
to cool down.
The battery charger cable is connected
to the electrical mains.
Disconnect it and place it on the
housing.
The battery is discharged. Charge the battery.
The side broom does not operate. There is an open in the fuse (P, Fig. 1).
Reset the fuse by pressing the relevant
button. If the fuse cannot be reset, wait
a few minutes to allow the side broom
motor to cool down.
The machine operates only when
stationary, otherwise the red warning
light turns on.
The battery is discharged.
Charge the battery. If the trouble
persists, have the battery replaced at
Clarke Service Center.
The battery autonomy is low. The battery is dead. Have the battery replaced at Clarke
Service Center.
The battery cannot be charged: the red
warning light (D, Fig. 2) does not turn
on when the plug is inserted in the
electrical mains socket.
There is no power supply at the
electrical mains socket.
Check the electrical mains socket by
trying to connect another domestic
appliance.
SCRAPPING

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20 Manual del operador - BSW 28
INDICE
INSTRUCCIONES DE SEGURIDAD PARA EL OPERADOR 21
INTRODUCCIÓN 24
CONSERVACIÓN DEL MANUAL 24
DATOS DE IDENTIFICACIÓN 24
MODIFICACIONES Y MEJORAS 24
DESEMBALAJE/ENTREGA 24
DATOS TÉCNICOS 25
PROCEDIMIENTOS PARA EL TRANSPORTE 26
SÍMBOLOS 26
DESCRIPCIÓN DE LA MÁQUINA 27
ESTRUCTURA EXTERNA E INTERNA 27
PANEL DE CONTROL Y MANDOS 28
USO 29
CONTROL DE LA BATERÍA EN UNA MÁQUINA NUEVA 29
ANTES DE LA PUESTA EN MARCHA DE LA MÁQUINA 29
PUESTA EN MARCHA Y PARADA DE LA MÁQUINA 29
MÁQUINA EN FUNCIÓN 30
VACIADO DEL CAJÓN DE RESIDUOS 30
DESPUÉS DE LA UTILIZACIÓN DE LA MÁQUINA 30
PERIODO DE LARGA INACTIVIDAD DE LA MAQUINA 30
PRIMER PERIODO DE UTILIZACIÓN 30
MANTENIMIENTO 31
ESQUEMA DE MANTENIMIENTO PROGRAMADO 31
CONTROL DE LA INTEGRIDAD DEL CABLE DEL CARGADOR DE BATERÍAS 31
CONTROL Y AJUSTE DE LA ALTURA DEL CEPILLO LATERAL 32
DESMONTAJE/MONTAJE DEL CEPILLO LATERAL 32
CONTROL Y AJUSTE DE LA ALTURA DEL CEPILLO PRINCIPAL 33
DESMONTAJE/MONTAJE DEL CEPILLO PRINCIPAL 34
LIMPIEZA Y CONTROL DE LA INTEGRIDAD DEL FILTRO DE POLVOS, CONTROL
DE LAS GUARNICIONES DEL CAJÓN DE RESIDUOS 35
CONTROL DE LA ALTURA Y DEL FUNCIONAMIENTO DE LOS FLAPS 36
CARGA DE LA BATERÍA 36
ACCESORIOS/OPCIONES, BSW 28 37
BÚSQUEDA AVERÍAS Y SOLUCIONES 37
ELIMINACIÓN 37
Parts List 57
LEA ESTE LIBRO
Contiene información importante para el uso correcto y seguro de la máquina. Lea este libro
completamente antes de arrancar la máquina o hacer cualquier operación de mantenimiento. Si no siga
las instrucciones, corre el peligro de herirse o causar lesiones al personal, o causar daños importantes
a la máquina o a su entorno. Antes de usar la máquina, es indispensable seguir una formación. Si Usted
(o el operador) no habla español, solicite (o proporciónele) todas las informaciones necesarias. El libro
está traducido en otros idiomas. Todas las indicaciones de dirección dadas en estre libro están dadas
desde la posición del operador en la parte de atrás de la máquina.
Puede Ud. conseguir libros suplementarios dirigiéndose a su distribuidor Clarke.