Should it be found that the gas taps are difficult to turn, most probably they requirelubrication. This should be done immediately this problem has been noticed as follows.– Turn off the gas supply to cooker.– Remove all control knobs.– Remove control panel.– Unscrew the two screws which mounts the gas tap to the gas rail.– Remove the circlip and ignition switch from the front of the gas tap.– Disassemble the body of the tap.– Clean cone and housing with cloth soaked in thinners or similar, re-grease as requiredwith a special gas tap grease.– Put cone back in housing and rotate a number of times. Remove cone and take off anyexcess grease, making sure that gas passages are clear.– Reassemble all pieces in opposite order to disassembly.The operations must be executed by a qualified technician.Lubrication of the gas tapsTable for the choice of the injectorsINCREASE OF AIR NECESSARY FOR GAS COMBUSTION (2 m3/h x kW)BURNERS Air necessary for combustion [m 3/h]Auxiliary (A) 2,00Semi-rapid (SR) 3,50Rapid (R) 6,00BURNERSAuxiliary (A) 1,00 0,30 28 50 72Semi-rapid (SR) 1,75 0,45 32 65 97Rapid (R) 3,00 0,75 42 85 115NominalPower[kW]ReducedPower[kW] Ø injector[1/100 mm]By-pass[1/100 mm]Ø injector[1/100 mm]By-pass[1/100 mm]GB Cat: II 2H3+adjustableG 2020 mbarG 30 - 28-30 mbarG 31 - 37 mbar26