Necta Korinto UL 120V Installation, Use And Maintenance Manual

Necta Korinto UL 120V Installation, Use And Maintenance Manual Manual pdf 31 page image

27© by N&W GLOBAL VENDING SpA 07 06 275- 00Chapter 3MAINTENANCEImportant notice!!Access to the machine interior for maintenance and/orrepairs is via the side panels.Therefore the machine is designed to be rotated, thusallowing removal of the sides and of the back panel.The integrity of the machine and compliance with thestandards of the relevant systems must be checked atleast once a year by qualified personnel.With the main switches turned off, the terminal strip con-nected to the line cable, the fuses and the noise suppres-sor stay energised in any case.Before starting any maintenance operations requiringparts of the unit to be removed, the machine mustalways be switched off.The operations described below must be carried outonly by personnel who have the specific knowledge ofthe machine functioning from a point of view of elec-trical safety and health regulations.INTRODUCTIONTo ensure correct operation for a long period, the machinemust be subjected to regular maintenance.The following sections contain the procedures and themaintenance schedule, which are only a general indica-tion, as they greatly depend on the operating conditions(e.g. water hardness, environmental humidity and tem-perature, type of product used, etc.).The procedures described in this chapter are not exhaus-tive of all maintenance operations to be carried out.More complex operations (e.g. boiler descaling) should becarried out by qualified technicians only having specificknowledge of the machine.To prevent oxidation or the action of chemical agents, thestainless steel and varnished surfaces should be keptclean by using mild detergents (solvents must not beused).Never use water jets to clean the machine.SANITISING THE MIXERS AND FOODSTUFFCIRCUITSWhen installing the machine, and then at least once aweek or even more frequently according to the use of themachine and the quality of the inlet water, the mixers andthe dispensing conduits must be thoroughly sanitised(cleaned and disinfected), to guarantee proper hygiene ofthe dispensed products.The parts to be cleaned are as follows:- powder deposit drawers, mixer and instant drink dispens-ing conduit;- dispensing spouts;- spout support;- remove the powder and the water funnels, the feeders,the powder deposit drawers and the mixer wheels fromthe mixers (see Fig. 22);- in order to remove the water funnel the green ring nutmust be rotated anticlockwise;pay special attention to closing it fully duringreassembly;- in order to remove the impellers, block the disk fitted onthe mixer shaft with a finger (see Fig. 23).Fig. 23Fig. 221 - Dispensing spouts2 - Spouts support release button3 - Funnel securing ring nut4 - Mixer wheel5 - Water funnel6 - Powder deposit drawer7 - Powder funnel8 - Powder dispensing pipette9 - Fresh-brew dispensing spout