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Chapter 4

Maintenance

Tool Requirements When maintenance is performed on the vacuum contactor, one or all of the fol-

lowing tools may be required.

 r ESJWFSBUDIFUXSFODIXJUIFYUFOTJPO

 r ESJWFUPSRVFXSFODI

 r 4UBOEBSEESJWFTPDLFUT

 r 0QFOFOEXSFODIFT

 r "MMFOLFZ

 r EJBSPE

 r 4MPUIFBETDSFXESJWFSTXJEFXJEF

 r 'FFMFSHBVHFTFUBOE

 r %JHJUBMDBMJQFSDBQBCMFPGEFQUINFBTVSFNFOU

 r )JHIQPUFOUJBMUFTUFS

Recommended Torque Values Part of the contactor may have to be disassembled for maintenance or replace-

ment. ere are appropriate torque requirements for particular bolt sizes when

SFBTTFNCMJOHUIFDPOUBDUPS'PSUIFGPMMPXJOHCPMUTJ[FTVTFUIFTQFDJđFEUPSRVF

WBMVFTMJTUFECFMPX

 u)BSEXBSF ĕMC/N

 u)BSEXBSF ĕMC/N

 u)BSEXBSF ĕMC/N

Routine Maintenance e following should be carried out on an annual basis or whenever a contactor

JTTFSWJDFE

Cleaning

r &OTVSFUIBUNFUBMDIJQTPSđMJOHTBSFDMFBOFEGSPNBSPVOEUIFFMFDUSPNBHOFU

BTTFNCMZDPJMDPSFQPMFGBDFBOENBUJOHBSNBUVSFQMBUFBTUIFZNBZBĈFDU

proper operation of the contactor. If necessary, vacuum clean.

Note%POPUVTFDPNQSFTTFEBJSUPDMFBOPSSFNPWFEJSUGSPNTVSGBDFTPS

the enclosure as it will only redistribute the dirt.

 r If dirty, clean the white ceramic area of vacuum bottles with a clean lint-free

cloth.

1502-UM051E-EN-P – June 2013

Rockwell Automation Allen-Bradley 1502 User Manual

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