Caple C770 - Manual (Page 8)

Page 8
C770 user manual.DOC
GAS ADJUSTMENTS
Replacing the nozzles
If the equipment is adjusted for a type of gas that is different from the one available, it is
necessary to replace the burner nozzles. The choice of the nozzles to replace must be made
according to the table of the "technical characteristics". Act as follows: -
• Remove the racks and burners.
• By means of a straight spanner L, unscrew the nozzle U (fig.7) and substitute it with the
corresponding one.
• Tighten the nozzle strongly.
Adjusting the burners
• The lowest flame point must always be properly
adjusted and the flame must remain on even if there is
an abrupt shift from the maximum to the minimum
position. If this is not so, it is necessary to adjust the
lowest flame point as follows: -
• Start the burner up.
• Turn the tap up to the minimum position (small flame)
• Remove the knob from the tap rod.
• Introduce a flat-tip screwdriver C in the hole F of the
tap (fig.8) and turn the by-pass screw up to a proper
adjustment of the lowest flame point.
As regards G 30 gas burners, the by-pass screw must be
tightened completely.
MAINTENANCE
Lubricating the taps
In case of tap becoming stiff, it is necessary to disassemble and grease it.
These are the operations to carry out:
• Unscrew the two screws that lock the head flange of the tap.
• Lift the gas adjusting cone and carefully clean it with gasoline or diluent.
• Spread a little high-temperature grease on it, making sure that the gas holes are not
obstructed.
• Reassemble all of the parts with care.
Replacing the power supply cable
If the power supply cable should be replaced, it is necessary to use a cable with a section of
3 x 0.75 mm2, type H05VV-F or H05RR-F, complying
with the regulations in force. The connection to the
terminal board must be effected as shown in fig. 9:
Brown cable
L (live)
Blue cable N (neutral)
Green-yellow cable E (earth)