Unigas URB40, Руководство по установке, использованию и обслуживанию

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PART III: OPERATION
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ADJUSTMENTS FOR GAS OPERATION
Adjusting the gas gun
The gas lances are already factory-set at standard position. Only when necessary, change the position following the next procedure:

to move the lance back or forth, loosen the screws V , on each lance

to rotate the lance, close the gas manual valve M on the lance, loosen the four screws R and V screws, without removing them;
then rotate the lance in order to change the combustion according to the combustion resulted values.

after the adjustment, remember to fasten all the screws
Attention! if it is necessary to change the gun position, repeat the air and gas adjustments described above.
V
V
V
R
R
R
M
TTENZIONE