Jema Autolifte DWC-8-E User manual

Computer wheel balancer
DWC-8-E
Operation and Maintenance Manual
Jema Autolifte A/S
Industrihegnet 2
4030 Tune, Denmark
Tel./Mail ([phone] / [email protected]

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Operation and Maintenance Manual
Passenger car and light truck wheel balancer
MODEL DWC-8-E
Serial number

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CONTENTS
I. PACKAGING, TRANSPORTATION AND STORAGE
II.INTRODUCTION
Chapter 1 DESCRIPTION OF THE MACHINE
Chapter 2 TECHNICAL SPECIFICATIONS
Chapter 3 SAFETY
Chapter 4 INSTALLATION
Chapter 5 DESCRIPTION OF SUBPROGRAMMES
Chapter 6 NOTES ON OPERATION
Chapter 7 MAINTENANCE
Chapter 8 MACHINE SCRAPPING
Chapter 9 TROUBLESHOOTING
III. SPARE PARTS CATALOGUE

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JEMA AUTOLIFTE RESERVES THE RIGHT TO MAKE MODERNIZATION CHANGES TO ITS
PRODUCT WITHOUT ANY OBLIGATION TO MAKE SUCH CHANGES IN THIS MANUAL.
I. PACKAGING, TRANSPORTATION AND STORAGE
CAUTION
Any operations related to packaging, lifting, moving, transportation and unpacking must be
performed only by qualified staff.
Packaging
The wheel balancer is dispatched as a complete machine (quick adapter, casing, wheel
balancer). Rubber pads, calibration device and the manual.
The wheel balancer may be packaged in several ways:
- Pallet + stretch film +cardboard box
- Pallet + stretch film
- Pallet + cardboard box
-Stretch film
Transportation
The packaging must be lifted or moved by means of forklift or pallet trucks. Upon delivery of
the load to the place of destination it is required to check if it has not been damaged during
transportation. It is also necessary to check completeness of the delivery against the
waybill. If the shipment is found to be short or damaged during transportation, it is
necessary to immediately report the fact to the person responsible or carrier.
Furthermore, special care must be taken when unloading the shipment.
Storage
The machine should be stored in a dry and dust-free place.

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II. INTRODUCTION
WARNING
This manual is addressed to workshop staff who are authorised to operate a wheel balancer (an
operator) as well as to workers performing on-going maintenance; read this manual thoroughly
before starting unpacking and operation of the wheel balancer. The manual contains important
information pertaining to:
PERSONAL SAFETY of operators and maintenance workers,
OPERATION OF THE WHEEL BALANCER,
Storage of the manual
The manual constitutes an integral part of the wheel balancer and should be kept near it at all
times, even if the machine is sold.
The manual must be kept near the machine in a readily and immediately accessible location. The
Operators and maintenance staff must have an immediate access to the manual at all time.
CAUTION
IT IS PARTICULARLY RECOMMENDED TO READ THOROUGHLY AND REPEATEDLY
CHAPTER 3 WHICH CONTAINS IMPORTANT INFORMATION AND WARNINGS RELATED TO
SAFETY.
The machine was designed and created according to the following documents:
Directives 2006/42/CE, 2006/95/CE, 2004/108/CE and
Polish standards adequate European regulations:
- PN-EN ISO 12100-1:2005 Safety of machinery. Basic concepts, general principles for design. Part 1: Basic
terminology, methodology
- PN-EN ISO 12100-2:2005 Safety of machinery.. Basic concepts, general principles for design. Part 2: Technical
principles (orig.)
- PN-EN 61000-6-3:2002 Electromagnetic compatibility (EMC). Part 6-3: Generic standards. Emission standard for
residential, commercial and light industrial (orig.)
- PN-EN 61000-6-4:2002 Electromagnetic compatibility (EMC). Part 6-4: Generic standards. Emission standard for
industrial environments (orig.)
- PN-EN ISO 13857:2008 Safety of machinery. Safety distances to prevent reaching the upper limbs and lower the
danger zones (orig.)
- PN-EN 349+A1:2008 Safety of machinery. Minimum gaps to avoid crushing of parts of human body.
- PN-EN 60204-1:2006 Safety of machinery. Electrical equipment of machines. Part 1:General requirement(orig.)
- PN - EN 61293 / 2000 Marking of electrical equipment with ratings related to electrical supply - Safety
requirements;
- PN-EN 983+A1:2008 Safety of machinery - Safety requirements for hydraulic and pneumatic systems and their
components-Pneumatics (orig.)
- PN - EN 61204 / 2001 Low voltage DC - Properties and safety requirements;
- PN-EN ISO 11201:1999 Acoustics - Noise emitted by machinery and equipment - Measurement levels of sound
pressure emission at a work station and other specified positions by engineering method .
- PN-EN 50419 -1:2008 Marking of electrical and electronic equipment in accordance with Article 11 (2) of
Directive 2002/96/CE (WEEE)
- PN-EN 61190-1 -3:2008 Materials for connecting electronic components - Part 1-3: Particular requirements for
solders for electronic applications and solders with fluxes or without fluxes for soldering
electronic components .
- PN-EN 61760-1 :2006 Surface mounting technology - Part 1: Method qualification standard components for
surface mount (SMD)

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CAUTION
Lifting, transportation, unpacking, assembly, installation, start-up, preliminary adjustment, testing,
maintenance do not require presence of service workers, but must be performed with special
care.
Jema Autolifte shall not be liable for any personal injuries or damages of vehicles or any
other objects, if any of the aforementioned operations have been performed in a manner
non-compliant with this manual, or if the wheel balancer has been used improperly.
The manual includes only these maintenance and safety aspects which may help an operator or
maintenance worker to understand better the construction and operation of the wheel balancer as
well as to use it most efficiently.
In order to understand the terminology used in the manual, the operator must have specific
experience in workshop, service, maintenance and repair works, ability to interpret correctly the
drawings and descriptions included herein and knowledge of general and specific safety
regulations applicable in the country of installation.
The word “operator” used in this manual should be understood as follows: OPERATOR: a person
authorised to operate the wheel balancer.

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CHAPTER 1 DESCRIPTION OF THE MACHINE
The wheel balancer DWC-8-E is intended to be used to balance dynamically passenger car and
light truck wheels within one measuring run.
1.power switch
2.distance gauge
3. rubber pads
4. feeder
5. quick adapter
6. keyboard
7.foot brake pedal
8. calibration device
Indicator screen
Fig. 1

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Description of keyboard (fig. 1 and 2)
Verbal messages generated by the wheel balancer upon pressing a button
are provided in square brackets.
Button setting the width of a wheel to be balanced [WIDTH]
Button setting diameter and distance of a wheel to be balanced
[DIAMETER] or [DISTANCE]
Button of selection of weights mounting manner with diode
signalisation [RIM TYPE CHANGE]
Memory button M1 –M3 [MEMORY READOUT]
Button changing parameters of distance, diameter, distance of a wheel to be balanced
(decreasing the values)
Button changing parameters of distance, diameter, distance of a wheel to be balanced
(increasing the values)
Button deleting the result of the last measurement [NEW MEASUREMENT]
Button of the wheel balancer calibration [CALIBRATION]
Button starting the “hidden weight” programme
Button of calculation of imbalances [CALCULATION OF IMBALANCES]
Button of selection of the cut-off threshold [THRESHOLD CHANGE] —with diode
signalisation
Function button
CAUTION:
Every instance of pressing any of the buttons is confirmed by a sound
signal.
programme 1:
both weights clipped to the rim edge
programme 2:
both stick-on weights
programme 3:
one weight clipped on the inner correction plane; the other weight
stuck to the outer correction plane
programme 4:
static balancing (for thin rims, with one weight), not recommended
for car wheels
programme 5:
both weights stuck to inner side of the rim
programme 6:
one weight attached on the inner correction plane; the other weight
stuck to the inner side of the rim

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WARNING
The wheel balancer was designed and manufactured to be used to dynamically balance
passenger car and light truck wheels. It is prohibited to use it in any other way. The wheel
balancer should not be used to wash wheels.
CHAPTER 2 TECHNICAL SPECIFICATIONS
Technical data
-max. tyre diameter 0.9 m
-rim diameter capacity 10” – 30”
-rim width capacity 2” –15”
-weight imbalance volume indications accuracy 1g
-weight imbalance placement signalisation accuracy 3 degrees
-measurement time 6–7 sec.
-weight of the machine ca. 50 kg
-machine dimensions: with adapter 77x60x33 cm
-wheel weight capacity up to 60 kg
-shaft rotational speed (during measurement) 95–130 rpm
-shaft rotational speed (calibration with a wheel) 115 rpm
-shaft rotational speed (calibration with device) 125 rpm
-power supply 230 V / 50 Hz

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CHAPTER 3 SAFETY
WARNING
The following chapter must be read in its entirety, since it provides important information
concerning danger for the operator and other people in the case of improper use of the
machine.
Explanations concerning threats and hazards that may occur during operation and
maintenance of the wheel balancer as well as general and specific precautions intended to
eliminate the potential dangers are provided below.
Before starting work with DWC-8-E, it is necessary to read carefully and understand these
instructions.
WARNING
The wheel balancer DWC-8-E is intended to be used to balance passenger car and light truck
wheels within one measuring run.
It is prohibited to use it in any other way. In particular, the wheel balancer is not suitable for:
-using for purposes other than balancing
- balancing heavy truck wheels
CAUTION
Jema Autolifte and vendor shall not be liable for any personal injuries or damages to
vehicles or any other objects caused by improper or unauthorised use of the wheel
balancer.
CAUTION
IT IS NOT RECOMMENDED TO USE THE WHEEL BALANCER WITHOUT PRIOR
CLOSURE OF THE WHEEL GUARD.
FAILURE TO MEET THE AFOREMENTIONED REQUIREMENTS MAY RESULT IN
SERIOUS PERSONAL INJURIES AND IRREPARABLE DAMAGE TO THE WHEEL
BALANCER AND THE WHEEL. ______________________________________________
General precautions
The operator and maintenance worker are required to follow the safety regulations applicable
in the country of the machine installation.