Eaton CROUSE-HINDS SERIES Operating Instructions Manual

Also see for Crouse-hinds series: Operating instructions Instruction manual Operating instructions Operating instructions Instruction manual

Eaton CROUSE-HINDS SERIES Operating Instructions Manual Manual pdf 26 page image

267 Maintenance / ServicingThe relevant national regulations whichapply to the maintenance/repair of electricalapparatus in explosive atmospheres, willhave to be observed (IEC/EN 6007917).Before opening the enclosure make surethat the terminal box is disconnected fromthe voltage, or take the appropriateprotective measures.In case of intrinsically safe circuits, working ispermitted while voltage applies.The required maintenance intervals depend onthe respective application and will thereforehave to be determined by the user dependenton the conditions of use.When servicing the apparatus, particularlythose parts that are decisive for the type ofprotection against explosion, will have to bechecked (e. g. intactness of flameproofenclosed components, enclosure, cableglands, efficacy of the cover gaskets) and thefunctioning of the switch mechanism.If during servicing repairs prove to be neces-sary, section 8 of these operating instructionswill have to be observed.8 Repairs / Overhaul /ModificationRepairs may only be carried out with genuineCCH / EATON spare parts.In case of a damaged flameproof enclosure,only its replacement is permitted. In case ofdoubt, the respective apparatus will have to bereturned for repair to CCH / EATON.Repairs that affect the explosion protection,may only be carried out by CCH / EATON ora qualified electrician in compliance with theapplicable national rules (IEC/EN 6007919).Modifications to the apparatus or changes ofits design are not permitted, except for themounting of additional cable entries and theinstallation of supply terminals in accordancewith the approval of the apparatus or acc. toinstructions of the manufacturer.When replacing individual components(measuring instrument, push-button etc.), para.6.2 ”Opening the device / Electrical connec-tion“ is to be observed.9 Disposal / RecyclingWhen the apparatus is disposed of, therespective national regulations on wastedisposal will have to be observed.In case of disposal you can obtain additionalinformation from your Cooper Crouse-Hinds /EATON branch.Subject to modifications or supplement of theproduct range.Fig. 6 Apparatusholder size 3 forpipe mounting,verticallyFastening holesfor control unitGHG 444 2CFig. 8 2 x Apparatus holder size 3 for pipe mounting, horizontallyA = Fastening holes for:control unit GHG 448 27 (Dimensions X = 0 mm)control unit GHG 449 27 only vertically (Dimensions X = 267mm)control unit GHG 447 27 only vertically (Dimensions X = 540mm)AApparatus holder size 3 for pipe mounting,horizontallyFig. 4AFastening holes for control unitGHG 444 2Apparatus holder size 3 for channel and wallmounting, horizontallyFastening holes for control unitGHG 444 25EFig. 5Fig. 7 Apparatus holderfor channel andwall mounting,verticallyBFastening holesfor control unitGHG 444 2GBExplosion protected control unitsmade of plastic or stainless steel type GHG 44.