Limpar 72 User manual

Operating Manual
Limpar 72 Sweeping Machine
Language of the original operating manual: German. Keep on hand for further use!
4F Maschinentechnik GmbH
Am Gasspeicher 6, D-49453 Rehden
Tel.: [phone], Fax: [phone]
email: [e-mail], Internet: www.4-f.de
© 4F Maschinentechnik GmbH
4KM
-KV01-2010

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Introduction
Dear reader,
This operating manual provides all information for safe
operation of the Limpar 72 sweeping machine.
The Limpar 72 sweeping machine has been designed and built
in accordance with the state of the art and recognised safety
rules and regulations. Nevertheless dangers for personnel or
objects can occur, because not all danger zones can be
avoided if the functionality is to remain intact. However you can
prevent accidents due to these dangers by complying with the
instructions in this operating manual. Moreover you will then be
able to use the sweeping machine to its full capacity and avoid
unnecessary disturbances.
CAUTION!
There is danger of injury and danger of material damage when
assembling, operating, and maintaining the sweeping machine.
Therefore:
•First read this operating manual carefully, prior to assembly
and operation of the sweeping machine. Always comply with
the instructions and information contained herein, particularly
the safety instructions.
•If the operating manual is lost or in poor condition, request a
new copy from the manufacturer (the same applies for parts of
the operating manual).
This operating manual only applies for the sweeping machine
specified on the cover sheet and at the end of every page.
Compare this information with the information on the type plate
of the sweeping machine.
After you have read the entire operating manual thoroughly for
the first time, take good care of the operating manual over the
entire service life of the sweeping machine, so that you can look
up something later.
If you sell the sweeping machine, give this operating manual to
the new owner.
All information, illustrations and dimensions in this operating
manual are non-binding. No claims whatsoever can be derived
from this information, illustrations or dimensions.
Introduction

Limpar 72 19.5.2010 Page 3of 39
Reprinting or duplication of any type, including excerpts,
requires the written permission of the manufacturer.
Conversion of, or changes to the sweeping machine are only
permitted with the manufacturer's written consent. Unauthorised
conversion voids any liability on the part of the manufacturer, as
well as the guarantee.
Only use original spare parts and accessories that are
approved by the manufacturer. Otherwise the design-specified
characteristics of the sweeping machine, the functionality or the
safety can be impaired. Consequently the use of other parts
voids the liability for the ensuing consequences.
Contact your specialist dealer to order spare parts or
accessories.
In addition comply with the instructions in the operating manual
of the motor manufacturer. This is included in the sub-package
for the sweeping machine.
4F Maschinentechnik GmbH assumes no liability for the content
of the operating manual provided by the motor manufacturer.
Explanation of symbols, signs and direction indications
For better understanding, the following conventions are used for
this operating manual:
1.
To emphasise important information, the following types of
special notices are used:
DANGER!
•
There is an imminent dangerous situation that results in death
or serious injury if it is not avoided.
WARNING!
•
There is a possible dangerous situation that can result in death
or serious injury if it is not avoided.
Introduction

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CAUTION!
•
There is a possible dangerous situation that can result in minor
injury or material damage, if it is not avoided.
ATTENTION!
...indicates a possible dangerous situation that can result in
material damage, if it is not avoided.
NOTE
...indicates
useful tips and recommendations, as well as information for
efficient and trouble-free operation.
...refers to important information in other sections and documents.
2.
Many texts serve a particular purpose. These texts are marked
as follows:
•Listings.
ðInstructing text, e. g. a sequence of activities.
3.
In the text the sides of the sweeping machine are cited
(left, right, front, rear). Left or right refers to the side that the
operator of the machine sees viewed from the direction of
travel. The sweeping brush of the machine is mounted in front,
the steering arm is mounted in the rear.
Introduction

Limpar 72 19.5.2010 Page 5of 39
Table of contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Non-intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
1.3 Product observation . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.4 Requirement imposed on the operator or personnel . . 9
1.5 Danger zone. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.6 Work clothing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.7 Safety devices and protective devices . . . . . . . . . . . 11
1.7.1 Safety switch . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.7.2 Sweeper brush deck . . . . . . . . . . . . . . . . . . . 11
1.7.3 Protective cover . . . . . . . . . . . . . . . . . . . . . 11
1.8 Safety regulations and accident prevention
regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.9 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.10 Safety signs on the sweeping machine . . . . . . . . . 14
2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.1 Type plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.2 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.3 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.2 Adjusting the steering arm . . . . . . . . . . . . . . . . . . . . 19
3.3 Mounting the pivot support for side adjustment
of the sweeping brush . . . . . . . . . . . . . . . . . . . . . . . 21
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.1 Preparatory activities . . . . . . . . . . . . . . . . . . . . 26
4.1.1 Adjusting the steering arm . . . . . . . . . . . . . . . 26
4.1.2 Sweeping brush height adjustment . . . . . . . . . 26
4.1.3 Checking the motor oil level . . . . . . . . . . . . . . 27
4.1.4 Filling fuel . . . . . . . . . . . . . . . . . . . . . 27
Table of contents

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4.2 Sweep operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.2.1 Starting the motor . . . . . . . . . . . . . . . . . . . . . .28
4.2.2 Stopping the motor . . . . . . . . . . . . . . . . . . . . . 28
4.2.3 Switching the traction drive on and off . . . . . . 29
4.2.4 Switching the sweeping brush drive
on and off . . . . . . . . . . ....... . . . . . . . . . . . 29
4.2.5 Side adjustment of the sweeping brush . . . . . 30
5 Maintenance and repair . . . . . . . . . . . . . . . . . . . . 31
5.1 Safety guidelines for maintenance
and repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
5.2 Regular maintenance tasks . . . . . . . . . . . . . . . . . . . 33
5.2.1 Maintenance schedule . . . . . . . . . . . . . . . . . . 33
5.2.2 Maintenance records . . . . . . . . . . . . . . . . . . . .33
5.2.3 Checking the Bowden cables for ease
of movement . . . . . . . . . . . . . . ....... . . . . . 33
5.2.4 Checking the air pressure in the tyres . . . . . . 35
5.2.5 Cleaning the sweeping machine . . . . . . . . . . 35
5.2.6 Checking and cleaning the air filter . . . . . . . . 35
5.3 Maintenance and repair verifications . . . . . . . . . . . . 36
6 Decommissioning and preservation .......... . . . . . 37
7 Faults and fault correction ............ . . . . . . . . . . . 37
8 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
8.1 Sweepings collection bin . . . . . . . . . . . . . . . . . . . . . 38
8.2 Snow chains and clearing blade . . . . . . . . . . . . . . . . 38
8.3 Sweeping brushes for winter service . . . . . . . . . . . . 38
9 Specialist dealers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
10 Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . 39
Table of contents

Limpar 72 19.5.2010 Page 7of 39
1 Safety
The basic prerequisite for safe and trouble-free operation of the
sweeping machine is knowledge of the safety instructions and
safety regulations.
Consequently read this chapter carefully all the way through
and comply with the specified instructions and warnings. The
safety instructions and warnings that you find at the appropriate
point in the text of the following chapters must be complied with.
The manufacturer cannot be made liable if the instructions and
warnings are not complied with.
In addition to the instructions contained in this operating
manual, the statutory regulations, particularly the safety and
accident prevention regulations, must also be complied with.
1.1 Intended use
The Limpar 72 sweeping machine may only be used to clean
paths and surfaces that are paved with concrete, asphalt,
paving stones or slabs outside of closed rooms.
Intended use also includes compliance with all the instructions
in the operating manual.
DANGER!
If the sweeping machine is used for a use other than the use
described above, dangerous situations can occur for people or
material damage can occur.
Therefore:
•Only use the sweeping machine for its intended purpose.
•Always comply with all the instructions in this operating manual.
•
Particularly refrain from the uses of the sweeping machine
listed in section 1.2. They are considered non-intended use.
Safety

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1.2 Non-intended use
Any use that deviates from that described in section 1.1,
is considered non-intended use.
For example, non-intended use of the sweeping machine
occurs when
•it is used to clean unpaved surfaces e. g. gravel paths,
•it is used to clean roofs or flat roofs,
•it is used in enclosed spaces, e.g. halls, or barns,
•it is used to transport persons or objects,
•it is used to move or carry objects or vehicles,
•it is operated in faulty condition or with safety-relevant
faults,
•it is used without the safety cladding elements that are
installed as standard equipment,
•unsuitable personnel are assigned to operate the sweeping
machine.
1.3 Product observation
Notify us without delay if faults or problems occur when
operating your sweeping machine, or if accidents occur or
nearly occur.
Together with you we will find a solution to the problem and
allow the knowledge gained to flow into our subsequent work.
Safety

Limpar 72 19.5.2010 Page 9of 39
1.4 Requirements imposed on the operator
or personnel
Handling the sweeping machine is only permitted for persons,
•who are at least 16 years old,
•who are physically and mentally suited to do so,
•who have read and understood this operating manual, and
•from whom it is expected that they responsibly perform the
tasks assigned to them.
Commissioning, maintenance, repair and disposal of the
sweeping machine may only be executed by the specialist
dealer or by persons with appropriate technical training and
experience.
1.5 Danger zone
The danger zone is the area in which the safety or the health of
persons is jeopardised. Consequently no one should be in this
area when the sweeping machine is in operation.
WARNING!
For persons in the danger zone there is danger of injury due to
collision with the sweeping machine and due to thrown up
sweepings.
Therefore:
•Only operate the sweeping machine if no one is in the danger
zone.
•Carefully observe the danger zone and stop the sweeping
machine if persons enter the danger zone.
The danger zone is shown in the sketch (see Fig. 1, on the next
page):
A top view of the sweeping machine is shown. The shaded area
is the danger zone.
The danger zone on the right side and left side is determined
through the width of the sweeping brush. Toward the front side
of the sweeping machine the length of the danger zone is 5 m
in front of the sweeping brush.
Safety

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NOTE
When swinging the sweeping brush to the right or left this change in
direction also applies for the danger zone.
Safety
Fig. 1:
Danger zone
2.5 m
5 m ahead of the sweeping brush

Limpar 72 19.5.2010 Page 11 of 39
1.6 Work clothing
WARNING!
Unsuitable, loose work clothing, bandanas, ties, and scarves can
be caught by the sweeping brush and pulled in.
Severe injuries are the result.
Therefore:
•
When operating the sweeping machine, and for maintenance
and repair tasks, always wear suitable tight-
fitting work
clothing.
Special protective clothing is not necessary for work with the
sweeping machine. However always wear tight-fitting work
clothing that cannot get caught in the sweeping brush, and that
is appropriate for the respective weather, as well as sturdy
shoes.
For commercial use the owner must ensure that suitable work
clothing is selected and also worn.
1.7 Safety devices and protective devices
1.7.1 Safety switch
The switch levers for traction drive and rotation of the sweeping
brush are designed as safety switches. By pressing down the
switch levers on the steering arm handles, the traction drive and
the rotation of the sweeping broom will be switched on.
To bring the sweeping machine to a standstill, it suffices to
release the switch levers.
1.7.2 Sweeping brush deck
The sweeping brush deck is mounted like a protective sheet
metal element above the sweeping brushes and prevents
operating personnel from being hit by thrown up sweepings.
1.7.3 Protective cover
The belt drives in the interior of the sweeping machine are
considered danger zones and are protected against access by
the front protective cover and the housing.
Safety

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1.8 Safety regulations and accident prevention
regulations
Comply with the following instructions to avoid injury and material
damage. In addition, for commercial use comply with the safety
and accident prevention regulations issued by the Employers
Liability Insurance Associations.
•Only operate the sweeping machine with properly mounted
safety devices and protective devices (see section 1.7).
These devices may only be dismounted for maintenance and
repair tasks. After concluding these tasks the safety devices
and protective devices must be immediately remounted.
Otherwise there is significant danger of injury.
•Only use the sweeping machine for its intended use,
otherwise dangerous situations can occur with serious or
fatal injuries as the result (intended use: see section 1.1).
•Due to poor lighting conditions during operation a number of
dangers can occur. Only operate the sweeping machine if
there is adequate lighting.
•For sweeping tasks along walls there is danger of hand
scrape injuries. Avoid touching the walls with your hands and
wear protective gloves.
•Maintenance and repair tasks may only be executed by the
specialist dealer or by specialised personnel.
•High voltage on the ignition cable and spark plug connector!
Always switch the sweeper off with the fuel control lever,
before performing tasks on the ignition cable or spark plug
connector.
•Comply with the instructions on the safety stickers that are
located on the sweeping machine. Safety stickers must not
be removed. If they have become illegible or have been lost,
they must be replaced (meaning of the stickers: see
section 1.10). Contact your specialist dealer to order new
stickers.
•Wear tight-fitting clothing. Long hair must be tied back.
Safety

Limpar 72 19.5.2010 Page 13 of 39
•Do not operate the sweeping machine in faulty condition;
significant injury hazards can occur. If faults occur switch
off the sweeping machine and initiate the repair.
•Execution of the specified maintenance and repair tasks is
part of intended use of the sweeping machine; intended
use particularly includes compliance with the maintenance
intervals. If you do not execute these tasks, faultless
function cannot be ensured. Dangers for personnel and
objects can occur. We recommend that you keep
maintenance logs.
•Switch off the sweeping machine prior to performing repair
tasks, including cleaning tasks. Ensure that no other person
can restart the sweeping machine (e. g. pull off the spark
plug connector). Otherwise there is danger of injury.
•Only use original spare parts and accessories that are
approved by the manufacturer. The use of other parts voids
the liability for the ensuing consequences.
1.9 Disposal
After its service life, only have qualified specialists dispose of
the sweeping machine. The manufacturer assumes no liability
for damage that occurs due to improper disposal.
Safety

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1.10 Safety signs on the sweeping machine
Warning!
Danger of injury due to ignorance of the danger zones.
The stickers attached on the sweeping machine contain warnings
of specific dangers as well as instructions for correct operation.
The stickers supplement the instructions specified in this manual.
Therefore:
•Always comply with the warnings affixed on the sweeping
machine.
•Do not remove any warning stickers
•Replace warning stickers that come off of the machine or that
have already been lost.
Stickers Meaning
Before using the sweeping machine, the
operating manual must be read. All
information contained in the operating
manual must always be complied with.
Position: On the rear of the machine in the
operator’s field of vision.
Warning –general dangers.
Position: On the rear of the machine in the
operator’s field of vision.
Warning –hot surface.
Position: On the motor.
Warning –thrown up sweepings.
Maintain distance.
Position: On the rear of the brush deck.
Safety

Limpar 72 19.5.2010 Page 15 of 39
2 Description
With the Limpar 72 sweeping machine, paved surfaces outside
of closed rooms are cleaned with motor power.
The sweeping machine consists of a sheet steel housing, on
which a petrol motor is mounted. A boom carries a pivoting
roller sweeping brush. The motor powers the sweeping brush
and / or the drive wheels, which can be individually switched.
The sweeper has a steering arm with which it is guided by a
pedestrian, and from which all operating elements can be
reached.
2.1 Type plate
A type plate is attached on the sweeper, it contains the basic
data for the sweeper (see Fig. 2). The type plate is on the left
side of the sweeping machine below the motor.
Description
Fig. 2: Type plate
Machine
designation
Type and
serial number
Year of
manufacture
Motor
type

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2.2 Overview
Fig. 3: Components and operating elements
Switch lever
–
traction drive Switch lever –brush drive
Swivel support
(Side adjustment –
sweeping brush)
Handle bar height
adjustment element
(Leaf spring with 3 holes)
Height adjustment
–
sweeping brush
Protective cover
Access
ory
receptacles
Brush deck
Sweeper brush
Support wheel
Drive wheel
Fuel control lever
and motor stop
Description
Locking tab

Limpar 72 19.5.2010 Page 17 of 39
2.3 Technical data
Dimensions, weight, travel speed, motors
Work width 70 cm
Brush diameter 25 cm
Weight 45 kg
Travel speed 3.3 km/h
Motor Honda GCV 135 or
Briggs & Stratton DOV
Hand/arm vibrations on the sweeping machine
Vibration total value
(Honda motors) ahwd= 3.5 m-2
Vibration total value
(Briggs & Stratton motor) ahwd= 3.3 m-2
Noise emission value of the sweeping machine
Sound power level
(Honda motor) LWAd = 95 dB(A)/1pW
Sound power level
(Briggs & Stratton motor) LWAd = 94 dB(A)/1pW
Sound pressure level
on the operator’s ear
(Honda motor) LpAd = 84.5 dB(A)/20µPa
Sound pressure level
at the operator’s ear
(Briggs & Stratton motor) LpAd = 84 dB(A)/20µPa
Description

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3 Commissioning
CAUTION!
Danger of injury and danger of material damage due to
improper assembly of the sweeping machine.
Therefore:
•The completion and all necessary adjustments, incl. trial
run are included in the scope of delivery and must be
executed by the specialist dealer prior to transfer to the
customer!
We recommend that two people assemble the sweeping
machine.
3.1 Unpacking
ðPlace the packed sweeping machine on a level floor
ðOpen the box on the top
ðCut open the 4 corners of the box to the floor.
ðMount the drive wheels (see the assembly instructions
for the drive wheels included as a separate sheet in the
box, or at the end of this page)
ðSet up the steering arm in accordance with section 3.2
and roll the sweeping machine out of the packaging.
ðDispose of the packaging in accordance with the waste
disposal regulations issued by your municipal
administration.
Wheel
Here
hinged pin
Freewheel /
tappet
Washer
Commissioning
Fig. 4:
Assembly –drive wheels

Limpar 72 19.5.2010 Page 19 of 39
3.2 Steering arm height adjustment
3.2.1 Making the steering arm
height adjustment element
operational
See Fig. 5 to 7 for installation of the lock finger of the steering
arm height adjustment element.
CAUTION!
Danger of injury and danger of material damage when raising the
steering arm.
When lifting up the steering arm there is a crush hazard between
steering arm and motor.
Bowden cables can be pinched and damaged when lifting up the
steering arm.
Burrs may be present on sheet metal parts, on which you can cut
yourself.
Therefore:
•Carefully lift up the steering arm.
•When lifting up the steering arm pay attention to the Bowden
cables.
•Wear work gloves.
At the lower end of the steering arm you will find a lock finger on
the right side that can engage in one of the underlying leaf
springs. To prevent the finger from piercing through the box, it
has been pre-mounted in a twisted position.
Bring the lock finger into the position as shown in Fig. 5.
Commissioning
Task to be performed
by the specialised
workshop!
Fig. 5:
Alignment of the lock finger

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Mount the two screws and allow the still loose lock finger to
engage in the rear or middle bore of the leaf spring, wh
ile you
align the steering arm. The lock finger can centre itself
through the slotted holes. In this position the two M6 screws
are tightened. See Fig. 6:
Commissioning
Fig. 6: Correct installation of the lock finger
The leaf spring is fastened on a bracket that can be slid back
and forth slightl
y in slotted holes so that the lock finger can
cleanly engage in all 3 holes. In Fig. 7 the screws are marked
that must be unscrewed to adjust the leaf spring.
The housing does not need to be opened, because the
screws are fastened in a threaded plate.
Fig. 7: Leaf spring adjustment