Gude GE 145 W, Руководство пользователя

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The tanks and vessels of any type should be
completely emptied, cleaned and ventilated. Only
a skilled professional is allowed to weld them
5. Human factor negligence:

Negligent use of personal protection equipment:
Welding without use of required protection
equipment is hazardous for health.
Always use suitable protection aid for welding.
Assembly and Initial Operation Fig. 2
Handle (Fig. 2):
Attach the carrying handle to the unit by putting through the
handle two screws and tightening them with a screwdriver.
Initial Operation Safety Instructions Fig. 3

Check the electrical connection for sufficient protection
(16 A)

Wear required clothing see fig 3:
1. Welder’s helmet
2. Welder’s apron
3. Welder’s gloves

Make sure that no other persons stay in working or
hazardous area.

Make sure that no combustible materials are found in the
working area.
Operation

The unit may be used at a room temperature from 20°C
without the thermal protection being put on with the
number of reference electrodes n
0
; and n
h
from warm
condition without switching the thermal protection on.

The earthing tongs need to be connected with the piece
to be welded in a way providing for a good contact. The
touch points should be cleaned so that no grease or
other impurities that could adversely affect the welding
output are present.

The unit has a main switch, yellow light indicator,
thermal protection and a hand wheel to control the
welding current. The control is done with regard to
welding current value and electrode diameter.
Caution: The indicators will light at overloading
only.
Thermal protection is provided on the unit to switch off the
welding current supply automatically as soon as the inner
temperature. As it drops to a value of correct operation, the
unit switches on again.
Step-by-step instructions
The welding area should be free of any rust and varnish. The
electrode is selected by the type of material. It is
recommended to test the electrode and the current intensity
on scrap at the beginning. Place the electrode ca 2 cm above
the starting point. Always use a welding shield, welder’s
gloves and protective clothing. Touch the piece and slightly
pull the electrode.
Wrong
(arc too long)
Correct
(ca 1 – 1.5 multiple of the
electrode diameter)
Precise length of the arc is critical as the current and voltage
intensity varies. Poor intensity of current makes both the weld
and resistance worse. The electrode angle support should be
70-80 degree forward with regard to the piece worked. Too
big (??) angle makes the slag slide under the edging material.
If the angle is too small, the arc will fluctuate and splash. In
either of the cases the wells is porous and weakened
Wrong Wrong Correct
The slag should not be removed before the weld gets cooled.
Continue welding of an interrupted weld after the slag is
removed.
Wrong Correct
The welder should try to keep the arc length constant. As the
electrode gets worn, it should typically get nearer. It is
recommended to remove the electrode in the direction of the
weld to avoid forming a porous crater.
Inspections and Maintenance Safety Instructions
Only a unit maintained and cared for on a regular basis may
be a serviceable aid. Insufficient maintenance and care may
result in emergencies and unforeseen accidents.
Inspections and Maintenance
Before every start of work:

Check the unit function. Do not work with a defective
unit.

Check the cable for damage and replace it with a cable
of the same quality if necessary.
Trouble - Causes - Troubleshooting
Trouble Cause Troubleshooting
Fuse activated
1. Welding current too high for the fuse. 1. Use a fuse of other switching-on characteristics.
2. Have it repaired
Even welding
impossible 1. Poor earthing contact on the cable
/tongs 1. Clean the piece and provide for good contact
2. Check and replace the cable if necessary.
Fragile or porous
weld
1. Unclean piece 1. Remove rust, grease and other dirt before welding.
2. Select the electrodes according to the material to be welded.
3. Dry the electrodes or dispose of them
Welding current
not available
1. Reverse conduct of the welding current
.doe not provide right contact Thermal
protection light on
2. Defective electronics
1. Check the reverse line of welding current for good contact
2. Let the unit cool down. The work may be continued when the
light indicator goes off.
3. Inform servicing department
Heat protection on
permanently 1. Ambient temperature too high
2. For the given welding unit too small