Tecno-gaz 7911 Manuel D'instruction page 14

The welded pieces may reach high temperatures. Even some
parts of the machine (electrodes, arms and parts connected to
the former ones) may excessively heat up if the cooling water is
not enough or if the machine is used for a too high rating. Analyse
the working conditions and use, if necessary, suitable individual
protection devices (gloves, aprons and other clothes).
Art. 7913 - 7915
A = Electrodes
B = Electrode-locking
C = Arms
D = Adjustable electrode-holder
F = Compressed air supply
G = Cooling water inlet
H = Cooling water outlet
I = Welding time scale
L = Compressed air circuit breaker
M = Moisture discharge
1/8 = Longitudinal adjustment (only for item 7913)
14
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Art. / Item 7911-7913-7915
Fig. 4
The safety shoes must be worn each time the pieces, because of
their shape or weight, bear risks requiring them.
Keep the areas surrounding the welder free from inflammable
materials as the work may produce projections of melted metal
particles. It is forbidden to use the machine in explosive at-
mosphere environments or involving fire risks.
The noise produced by the welder depends mainly from the
adjustments. To reduce the noise: adjust the working stroke to the
minimum value allowing carrying out the operation.
Never carry the spotter by its cable or yank it to disconnect it from
the socket. Keep the cable away from heat, oil and sharp edges.
If, while working, the cable is damaged, unplug the machine from
the mains. Do not use the machine if the cable is damaged.
In case of fire do not use water but proper fire extinguishers.
In addition to the information stated on this chapter, always operate
in accordance with all the relevant laws in force.
Art. 7911
Fig. 3
3 = Suspension (only for item 7913)
12 = Movable arm holder
16 = Electrodes stroke adjustment
26 = Trigger
63 = Welding current adjustment
65 = Mains cable
66 = Weld time adjustment
73 = Pressure gauge
74 = Regulator filter
101 = Fix arm holder