ATA is­sues tech­ni­cal ad­vi­sory pro­ce­dure

Australian Transport News - - News -

THE AUS­TRALIAN TRUCK­ING AS­SO­CI­A­TION

(ATA’s) up­dated tech­ni­cal ad­vi­sory pro­ce­dure (TAP) on com­pli­ant com­mer­cial ve­hi­cle air brake cham­bers in­cludes in­for­ma­tion on ac­cept­able air brake cham­ber build stan­dards, brake cham­ber compliance in­for­ma­tion and warn­ings against dis­as­sem­bling spring brake cham­bers.

ATA se­nior en­gi­neer­ing ad­viser Chris Loose says choos­ing the right brake cham­bers is a key step to en­sure an ef­fec­tive brak­ing sys­tem.

“The use of sub­stan­dard brake cham­bers could cre­ate an un­sta­ble ve­hi­cle com­bi­na­tion by mix­ing dif­fer­ent brake cham­ber sizes and brands, neg­a­tively af­fect­ing the brake bal­ance,” Loose says. “This tech­ni­cal ad­vi­sory pro­ce­dure was orig­i­nally pro­duced to counter a run of very pre­ma­ture brake cham­ber fail­ures, and it is a timely re­minder that use of the low­est cost item or a sub­stan­dard part does not save costs if it then suf­fers a fail­ure.”

Loose re­minds users that get­ting the brake cham­ber stan­dards right is also im­por­tant to en­sure compliance with the Aus­tralian De­sign Rules.

“Chang­ing a part num­ber or the per­for­mance of the part can re­quire test­ing or anal­y­sis of the parts in ques­tion to en­sure that they are equiv­a­lent and will main­tain the per­for­mance of the orig­i­nally tested com­po­nent or sys­tem,” he says.

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