ET Hydrogen L/350 Operating Instructions And Maintenance
1
2
3
INDEX
1.1 Presentation
4
1.2 Warranty
5
1.2.1 Exclusions from warranty
5
1.3 Machine identification
5
1.4
Equipment 7
1.5 Machine description and use limitation
7
1.5.1 Description
7
1.5.2 Use limitation
7
1.6 Noise 7
1.7 Technical
features
8
SECTION
2:
Safety
and
prevention
2.1 Safety 8
2.1.1 General safety
regulations
9
2.2 Safety signs (Symbols)
10
2.3 Safe use and maintenance 11
SECTION
3:
Transport
and
installation
3.1 Packaging
12
3.2 Shipping 12
3.3 Unpackaging
12
3.4 Positioning
1 2
3.5 Storing 12
SECTION
4: Use
4.1 Connection to the electric
circuit
13
4.2 Preparing the
electrolyte
13
4.3 Tank
filling
14
4.4 Booster
filling
14
4.5 Preparing deoxidizer liquid
14
4.6 Hazardous operations
14
4.
7
Starting the machine
15
4.8 Stopping the machine
15
4.9 Backfire
16
4.1O
Safety devices
17
4.11 Refilling deoxidizer liquid
18
4.12 Refilling distilled or demineralized water
18
SECTION 5: Maintenance
5.1 Generalities
17
5.2 Every six months
17
5.3 Once year
18
5.4 Every four year
18
5.5 Putting the machine out of service
18
5.6 Scrapping
18
5.7 Disposing of the
electrolyte 18
5.8 Disposing of the liquid
deoxidizer 18
5.9 Trouble shooting
19
5.1O Interventions
21
5.10.1 What to do in order to see if the tank is short-circuited
21
5.10.2 Controlling pressure, adjustment valve
21
5.10.3 Checking valve tightness 22
5.10.4 Replacing the valve
22
5.10.5 Replacing the
electrolyte
23
SECTION
6:
Spare
parts
6.1 Spare parts
23
FIGURELIST
Fig. 1 Welding and components
6
Fig.2
Machine Layout
8
Fig. 3 Safety signs
10
Fig.4 Valve replacement
22
Fig.5 Spare parts
24
Fig. 6 Wiring diagram 27
Tab.6 Special torch 30
4
SECTION 1
Description and main features of the welder
1.1 PRESENTATION
This manual gives information regarded as necessary to know, use correctly and carry out normal
maintenance operations on this welder « L/45 » (hereinafter referred to as machine) fabricated by
«Elettronica Todescato S.r.l.» di Arcugnano (Vicenza) Italy (hereinafter referred to as Manufacturer).
The material in this manual is not intended to be a complete description of the parts nor a detailed
explanation of their option. The user, however, will find the kind of information normally required to
operate the machine correctly and safely and also to keep in good working condition.
Compliance with and observance of what is described in the manual is an essential condition for the
trouble-free operation, long life and cost effective performance of the machine.
ATTENTION
Failure to observe the instructions in this manual, negligence, incorrect or improper use of the
machine can be cause of machine warranty coverage cancellation by manufacturer.
Manufacturer therefore declines any and all liability for injury to people or damage to property
caused by failure to follow the instructions given in this manual.
Service work or overhauls involving complex operations must be entrusted to an authorized Technical
Service Center which has the necessary specialized personnel, or directly to the Manufacturer who is at
your complete disposal to ensure fast and complete technical assistance and anything else that can
promote improved operation and optimal performance by the machine.
DANGER
This manual must be kept in a safe place at the disposal of the operator and service engineer,
for consultation at any time during the machine’s entire working life. It should be delivered with
the machine if the latter is sold.
The manual must be kept in a safe place that is familiar to the assigned personnel. It is the
responsibility of the personnel to keep the manual complete to allow for a consultation for the
entire life of the machine. If the manual is damaged or lost, a copy must be immediately
requested to the Manufacturer.
5
1.2 WARRANTY
Elettronica Todescato Srl ensures that the machine referred to in this manual has been tested in its own
premises. The machine is guaranteed for 1 year (12 months) from the date of purchase. Should the machine
be tampered with or improperly used, particularly concerning the safety devices, the warranty will be voided
and the manufacturer will be discharged from any liability whatsoever. Upon delivery, make sure that the
machine has not suffered damage during transportation and that it is complete with all standard accessories
and any optional equipment specifically ordered. Complaints must be written and submitted to your reseller
within and not later than 8 (eight) days.
1.2.1 EXCLUSIONS FROM WARRANTY
This warranty shall be null and void (apart from the causes given in the Purchase Contract):
- If the machine is used with incorrect voltage.
- If the damage is due to insufficient maintenance or lack of proper service.
- If, following repairs carried out by the owner without manufacturers consent due to installation of nonoriginal spare parts, the machine has been changed and the damage was caused by these changes.
- If the instructions given in this manual were not followed correctly.
- Exceptional events.
Damage caused by negligence, lack of care, improper and bad use of the machine or incorrect maneuvering
by the operator shall also cause this warranty coverage to be null and void.
ATTENTION
Removal of safety devices installed on the machine will automatically make this warranty null and
void of the Manufacturer.
1.3 MACHINE IDENTIFICATION
Each machine is equipped of identification plate (fig.1 # 21), giving the following information:
- Name and address of Manufacturer;
- «CE» mark;
- A) Machine type;
- B) Year of fabrication;
- C) Serial number;
- D) Voltage;
- E) Ampere;
- F) Watt;
- G) Frequency;
- H) Pressure.
The data given on the identification plate should be written in the spaces provided on the back cover
of this manual and should always be specified when ordering spare parts or requesting Technical
Assistance.
6
...
-
.
FIG.
1 -
WELDING AND
COMPONENTS
LEGEND
Fig.1
1.
Three-position
switch
2. Safety cap
3.
Circuit
breaker
4.
Power control
knob
5.
Minimum level indicator light
(yellow)
6.
Maximum level indicator light
(red)
7. Booster
8. Hand le knob
9. holder
10. On
indicator l
ight
11.
Shut-off
valve-
12.
Gas supply indicator
1/hour
13. Flame arrester cap
14.
Check valve
cap
15.
Special torch (brass nozzle
type)
16.
Standard torch (needle
type)
17. Wheel
42. Torch hose fitting & shut- off valve
43. Burner
tip
51. Power
cord
230
V.50
Hz.
56. Torch hose
66. Torch hose fitting
68. Identification plate & her position
7
1.4 EQUIPMENT
Standard Eq
uipment:
−
Burner tip
− Spare fuse.
− power cord
− fire proof rubber hose
− plastic funnel
−
User Manual
Optionals:
− Can containing liquid deoxidizer.
− Can containing
−
Torch
holder
−
2.5 Bar pressure gauge.
− One Year Maintenance Kit
− MACHINE DESCRIPTION AND USE LIMITATION
The
«ET- hydroge
n L/350 Welder
is a
machine marked
with «CE» symbol in compliance
with European Union
regulations
pursuant to
EEC Directive
2014/35/UE and 2014/30/CE
as
detailed in the UE
Declaration
of
Conformity annexed to
each
machine.
DESCRIPTION
The «ET Hydrogen Welder L/350» can be used in craftwork or industrial workshop with a
minimum volume of 30 m³ and provided with natural ventilation by means of suitable openings to
the outside in compliance with the regulations in force in the user’s country. This machine is mainly
used for soft and hard brazing applications in the fields of jewellery, goldsmith, costume jewellery,
dental mechanics, micromechanics, and for welding materials such as platinum, beryl, nickel,
thermocouples, enamel copper, glass, quartz and for welding metal to metal and applicable for
welding in industry, within the limitations of the machine.
USE LIMITATIONS
The hydrogen and oxygen mixture produced by this welder must be solely used to produce one
flame for braze welding or thermal treatments of metal parts in general, or for working quartz glass.
DANGER
Any use different from those quoted here within and not included or not directly inferred
from this instructions’ manual, will be regarded as «NOT ALLOWED».
8
It is not permitted to operate the machine when the flame is out. This would result in an
accumulation of explosive mixture in the surrounding environment and pollution caused by
the methyl alcohol.
The machine has been designed for professional use. The operator must be of proven
ability and capable of reading and understanding the instructions given in this manual.
The operator must also use the machine in accordance with the ruling accident prevention
standards, operating conditions and characteristics of the machine.
DANGER
THE USE OF THE MACHINE FOR ANY OTHER PURPOSE THAN THAT DESCRIBED IN THIS
MANUAL RELIEVES THE MANUFACTURER OF ANY RESPOSIBILITY FOR DAMAGES TO
PERSONS, ANIMALS OR THINGS RESULTING FROM INAPPROPRIATE USE.
1.6 NOISE
The noise level (acoustic pressure) was determined with the machine running under no load
conditions with the readings of the 70 dB(A) inferior.
1.7 TECHNICAL FEATURES
/
9
FIG. - MACHINE LAYOUT
H2/O2 Gas production
It/h
350
Water consumption
gr/h
175
Alcohol consumption
gr/h
57
Booster tank capacity
Lt
0,68
Maximum power
Watt
1500
Electrolyte
Lt
6,6
Weight
Kg
95
TABLE 1
SECTION 2
Safety and Prevention
2.1 SAFETY
The owner of the machine must instruct personnel about the risk of industrial accident, the safety
device installed for operator safety and on general industrial accident prevention regulations applied
by law in the country where the machine is to be operated.
Operator safety is a matter of considerable importance for machine design and fabrication. When
designing a new machine, every effort is made to foresee every possible dangerous situation and,
naturally, adopt suitable safety devices to counter them. Therefore, a careful reading of this manual
and special care and attention whenever any intrinsically operations have to be carried out are
obligatory.
DANGER
Manufacturer declines any and all liability for injury to people or damage to things caused by failure
to follow this safety regulation and accident prevention recommendations detailed here.
Pay further attention when you see this symbol in the manual.
2.1.1 GENERAL SAFETY REGULATIONS
10
ATTENTION
Failing to comply with the information described in «Section 2 – Safety and Prevention» and
the mishandling of the safety devices relieves the Manufacturer from any responsibility in
the event of accidents, damage or machine malfunctions.
General rules:
- The user undertakes to entrust the machine to qualified and trained personnel only.
- The user is bound to take all the necessary measures for preventing unauthorized
personnel from accessing the machine.
- The user undertakes to provide its personnel with adequate information regarding the
application and observance of the safety regulations. To this end, the user undertakes to
ensure that all the personnel understand the machine operating instructions and the safety
regulations relative to their particular responsibility.
- The user must inform the Manufacturer of any defects or malfunctions in the accident
prevention system and any situations of potential danger.
- The personnel must use the personal protection items provided for by law and respect
instructions given in this manual.
- The personnel must respect the danger and caution symbols on the machine.
- The personnel must not perform operations or interventions under their own initiative that lie
outside their competence.
- The personnel is obliged to notify superiors of any problem or dangerous situation that may
arise.
- The machine has been commissioned and tested with all the parts included within the
standard equipment. The installation of parts or other makes or modifications to the machine
may vary its characteristics and compromise its operating safety.
- The machine must only be used for the purpose for which it was constructed.
2.2 SAFETY SIGNS (Symbols)
During the construction of machine, all the possible solutions for the safety the operator have been
adopted. The machine may nevertheless present ulterior risks which have not been possible to
eliminate completely under certain operating conditions. These risks have been highlighted on the
machine with adhesive warning symbols that indicate the various situations of reduced safety or
danger.
ATTENTION
Keep the safety stickers clean and replace them immediately if they are peeling away or are
damaged.
11
The following warnings refer to Figure 3. Read them carefully and learn their meaning.
1) Excessive voltage. Before interventions, disconnect power.
2) Toxic substance, if swallowed. Do not inhale the vapors.
3) Easily flammable.
4) Corrosive liquid when in touch with body members.
5) Attention, electrostatic discharge sensitive device.
6) Flammable. Do not approach free flames.
7) Use protection glass.
8) Use protection mask for respiratory tract.
9) Use protection gloves.
10) Before using the machine, read the operating instructions carefully.
11) Attention, do not turn the handle knob while the flames are lit.
Loading...