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CURSO SOBRE MANUTENO PREVENTIVA EPREDITIVA EM EQUIPAMENTOS HIDRULICOS
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ECONOMIA GLOBALIZADA
PADRES DE EXCELNCIA E QUALIDADE DE PRODUTOS
E SERVIOS
MAIOR FLEXIBILIDADE OPERACIONAL DAS INSTALAES
MENORES CUSTOS DE PRODUO
ATIVIDADE INDUSTRIAL
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ECONOMIA GLOBALIZADA
EQUIPAMENTOS COM MAIOR FLEXIBILIDADE OPERACIONAL
SISTEMAS/COMPONENTES QUE ASSEGUREM:
- MAIORES TEMPOS ENTRE FALHAS ( MTBF )
- MENORES TEMPOS PARA REPAROS ( MTTR )
UTILIZAO DE TCNICAS DE MANUTENO COM MELHOR
RELAO CUSTO BENEFCIO
ATIVIDADE MANUTENO
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OBSOLESCNCIA
15%
CORROSO
20%
ADESO
15%
FADIGA
20%
ABRASO
15%
DESGASTEMECNICO
50%
DEGRADAO DE
SUPERFICIE70%
ACIDENTES
15%
PERDA DA UTILIDADE DE EQUIPAMENTOS
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PROCURANDO O DEFEITO
(80%)
ELIMINANDO O DEFEITO(20%)
DISTRIBUIO MDIA DO TEMPO GASTO
MANUTENO DE EQUIPAMENTOS HIDRULICOS
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Bombas(35%)
Atuadores(15%)
Controladorasde Vazo (10%)
Controladorasde Presso(15%)Vlvulas Direcionais
(10%)
Tubulaes(10%)
Outros
Componentes (5%)
Manuteno
EQUIPAMENTOS HIDRULICOS
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Fluido Hidrulico(80%)
FatoresMecnicos(10%)
Outros (5%)
Desconhecidas(5%)
Causas de Falhas
EQUIPAMENTOS HIDRULICOS
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UM CONJUNTO DE ATIVIDADES TCNICAS E
ADMINISTRATIVAS CUJA FINALIDADE CONSERVAR
OU RESTITUIR A UM TEM AS CONDIES QUE LHE
PERMITAM REALIZAR SUA FUNO.
ABRAMAN/ 1996
COMBINAO DE TODAS AES TCNICAS E
ADMINISTRATIVAS, INCLUINDO AS DE SUPERVISO,
DESTINADAS A MANTER OU RECOLOCAR UM TEM EM UM
ESTADO NO QUAL POSSA DESEMPENHAR UMA FUNO
REQUERIDA. A MANUTENO PODE INCLUIR UMA
MODIFICAO DE UM TEM.
ABNT - NBR - 5462/1994
MANUTENO
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A Evoluo da Manuteno nos Pases
Industrializados Introduziu Novos
Conceitos Sobre
MANUTENO DE EQUIPAMENTOS
HISTRICO
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CORRETIVA
PREVENTIVA
PREDITIVA
PROATIVA
INTERVENO APS A FALHA
COM BASE NO ESTADO
PERIDICA OU SISTEMTICA
DIAGNSTICO COM PREDIO DANATUREZA E MOMENTO DA FALHA
MONITORA AS ORIGENS DAS CAUSASDAS FALHAS
SISTEMAS DE MANUTENSISTEMAS DE MANUTENOO
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ATRAVS DE INSPEES PERIDICAS,
POSSVEIS FALHAS SO DETECTADAS
E PREVIAMENTE PROGRAMADOS
OS REPAROS NECESSRIOS.
MANUTENO PREVENTIVA SOB CONDIO
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SUBORDINADA A UM TIPO DE ACONTECIMENTO
PREDETERMINADO.
INSPEO
DIAGNSTICO
MEDIDA
MANUTENO PREVENTIVA SOB CONDIO
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Efetuada Segundo um Esquema de Cobranas
Intervalo de Tempo
Volume de Produo
Estabelecido, Tendo Como Base o Tempo ou o
Nmero de Unidades de Uso.
Distncia Percorrida
Nmero de Operaes
Horas de Operao
SISTEMTICA MANUTENO PREVENTIVA
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MANUTENO QUE PERMITE GARANTIR UMA QUALIDADE DE
SERVIO DESEJADA, COM BASE NA APLICAO SISTEMTICA DE
TCNICAS DE ANLISE; UTILIZANDO-SE MEIOS DE SUPERVISO
CENTRALIZADOS OU DE AMOSTRAGEM, PARA REDUZIR AO
MNIMO A MANUTENO PREVENTIVA E DIMINUIR A
MANUTENO CORRETIVA.
ABNT - NBR - 5462/1994
SO TAREFAS DE MANUTENO PREVENTIVA QUE VISAM
ACOMPANHAR A MQUINA OU AS PEAS, POR
MONITORAMENTO, POR MEDIES OU POR CONTROLE
ESTATSTICO PARA TENTAR PREVER OU PREDIZER A
PROXIMIDADE DA OCORRNCIA DE UMA FALHA.
ABRAMAN/ 1996
MANUTENO PREDITIVA
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PERMITE QUE FALHAS SEJAM PREVISTAS
E TRATADAS ANTES DA QUEBRA.
MANUTENO PREDITIVA
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MANUTENO PROATIVA
CONSISTE EM MONITORAR E MANTER,
DENTRO DOS LIMITES ACEITVEIS, OS
PARMETROS CRTICOS DAS
"ORIGENS DAS CAUSAS" DAS FALHAS.
MANUTENO PROATIVA
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CORRETIVA
PREVENTIVA
PREDITIVA
PROATIVA
INSPEO POR AUTPSIA
MONITORAO DAS CONDIES DAS
ORIGENS DAS CAUSAS DE FALHAS
INSPEO MULTISENSORIAL E
PROCURA DE DEFEITOS
MONITORAO DAS CONDIES
DE DEGRADAO DE MATERIAIS
MANUTENMANUTENO COM TECNOLOGIAO COM TECNOLOGIA
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D: ppt/sistema/preventiva/022
INSPEO CONDICIONAL ANLISE DA FALHA
MANUTENO PREVENTIVA EM EQUIPAMENTOSHIDRULICOS
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INSTRUMENTAL
MULTI-SENSORIAL
Visual
Auditiva
Ttil Olfativa
INSPEO
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PREVENTIVA SOB CONDIO:
- INSPEO MULTISENSORIAL
- INSPEO INSTRUMENTAL
MANUTENO PREVENTIVA DE EQUIPAMENTOSHIDRULICOS
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Vazamento Externos
Nvel do Fluido
Condies dos Instrumentos
Condies dos Condutores
Condies da Pintura Interna do Reservatrio
Corroso dos Componentes
Oxidao dos Componentes
Aparncia do Fluido Movimento dos Atuadores
Indicadores de Sujidade dos Filtros Limpeza dos Componentes e Instalao
Sinalizadores Visuais
INSPEO VISUAL
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Cavitao
Aerao
Barulhos Provenientes de Atrito ou ChoqueEntre Peas Metlicas
Vazamento Interno
Rudos em Solenides
Golpe de Arete
Rotativos Rudos em Rolamentos ou Componentes
Sinalizadores Sonoros
INSPEO AUDITIVA
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Aquecimento
Vibrao
Vazamento Interno
Defeito em Solenides
INSPEO TTIL
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Queima de Solenides
Oxidao, Combusto e Decomposiodo Fluido Hidrulico
INSPEO OLFATIVA
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O QUE INSPECIONAR:
- RESERVATRIO HIDRULICO
- FLUIDO HIDRULICO
- UNIDADE DE POTNCIA- BANCO DE VLVULA
- ACUMULADOR HIDRULICO
- TROCADOR DE CALOR
- CILINDRO HIDRULICO- TUBULAO- SALA HIDRULICA
MANUTENO PREVENTIVA DE EQUIPAMENTOSHIDRULICOS
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NVEL DO FLUIDO HIDRULICO
TEMPERATURA DO FLUIDO HIDRULICO TAMPAS DE INSPEO
PAREDES INTERNAS
PAREDES EXTERNAS
VAZAMENTOS EXTERNOS
RESPIRO DE AR
FILTRO DO RESPIRO DE AR
BOCAL DE ENCHIMENTO FILTRO DO BOCAL DE ENCHIMENTO
INDICADOR DE NVEL
RESERVATRIO HIDRULICO
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MEDIDOR DE NVEL
VLVULA DE DRENO
BUJES OU PLACAS MAGNTICAS
TERMMETRO
TERMOSTATO
IDENTIFICAO
TUBULAES DE DRENO, RETORNO E SUCO
RESERVATRIO HIDRULICO
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D:ppt/sistema/preventiva01/004
ANLISE DAS PROPRIEDADES FSICO/QUMICA
ANLISE DA CONTAMINAO DOS SLIDOS
PRESENA DE ESPUMA
CONTAMINAO POR GUA
FLUIDO HIDRULICO
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Vlvulas da Linha de Suco
Chave Fim do Curso de Vlvulas de Suco
Aerao
Cavitao
Manmetro
Vacumetro
Vlvula Isoladora do Manmetro Vlvula Isoladora do Vacumetro
Filtro de Suco
Filtro de Retorno
Nvel de Rudo da Bomba
Alinhamento e Nivelamento do Conjunto
Motor/Bomba
UNIDADE DE POTNCIA
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Presso Mxima
Presso Mnima Temperatura da Bomba
Pressostato
Temperatura da Tubulao de Suco
Temperatura da Tubulao de Descarga
Temperatura de Tubulao de Dreno
Vazamentos Externos
Temperatura da Vlvula Controladora de Presso
Vazamento Interno na Vlvula Controladora de Presso
UNIDADE DE POTNCIA
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VAZAMENTO
TEMPERATURA DOS COMPONENTES
CONEXES ELTRICAS FIXAO DE VLVULAS
IDENTIFICAO
DIAGRAMA VLVULAS DE BLOQUEIO
FIXAO DE SOLENIDES
LMPADAS SINALIZADORAS
FUNCIONAMENTO DOS SOLENIDES
TEMPERATURA DOS SOLENIDES
FILTROS
BANCO DE VLVULAS
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Funcionamento das Vlvulas Direcionais
Temperatura das Vlvulas Redutoras de Presso
Vedaes Internas das Vlvulas
Condies das Molas das Vlvulas
Parte Interna do Corpo das Vlvulas
Componentes Internos das Vlvulas
Funcionamento das Vlvulas Controladoras de Presso
Vazamento Interno nas Vlvulas Controladoras de Presso
BANCO DE VLVULAS
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Fixao
Vazamento
Alinhamento
Proteo da Haste
Sangria de ar
Estado da Haste Vazamento Interno
Lubrificao dos Munhes
Ajuste da Velocidade
Regulagem de Amortecimento
Regulagem do Curso de Trabalho
CILINDROS HIDRULICOS
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APERTO DA SOBREPOSTA
VEDAES
FIXAO DO MBOLO COM A HASTE
CONDIES DA ROSCA DA HASTE E OLHAL
SUPERFCIE INTERNA DA CAMISA
DESGASTE NO OLHAL, PINO E SUPORTE DO PINO
CILINDROS HIDRULICOS
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Presso de Pr-Carga
Vazamento Externo
Vlvula de Bloqueio do Fluido Hidrulico Vlvula de Dreno do Fluido Hidrulico
Vlvula de Segurana do Fluido Hidrulico
Superfcie Externa da Carcaa
Temperatura da Carcaa
Condies da Bexiga
Mola da Vlvula Anti-Extruso
Obturador da Vlvula Anti-Extruso Porca de Fixao do Obturador
Movimento do Obturador
ACUMULADOR HIDROPNEUMTICO
O O O
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TAMPA DE PROTEO DA VLVULA DE PR-CARGA
VAZAMENTO DO GS DE PR-CARGA
IDENTIFICAO
LIMPEZA
VLVULA DE SEGURANA DO GS DE PR-CARGA
SINALIZAO DE NVEL
SUPORTES DE FIXAO
TUBULAES E CONEXES
CONTROLE DE NVEL
VLVULA DE NVEL MNIMO
ACUMULADOR HIDROPNEUMTICO
TROCADOR DE CALOR (COOLER)
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Temperatura da gua na Sada
Vazamento Interno
Vazamento
Temperatura de Entrada do Fluido Hidrulico
Temperatura de Sada do Fluido Hidrulico Temperatura da gua na Entrada
Termmetros
Vlvula Termosttica
Vlvulas de Bloqueio
Filtro de gua
TROCADOR DE CALOR (COOLER)
TROCADOR DE CALOR (COOLER)
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CONDIES DOS BUJES SACRIFCIO
PROPRIEDADES FSICAS E QUMICAS DA GUA
CONDIES DA PARTE INTERNA DA CARCAA E TAMPAS
CONDIES DAS VEDAES
CONDIES DO FEIXE TUBULAR
TROCADOR DE CALOR (COOLER)
TUBULAES
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TEMPERATURA
CONDIES DOS TUBOS
ENCAMINHAMENTO
PONTOS DE SANGRIA
VAZAMENTO
APERTO DOS PARAFUSOS DOS FLANGES
VIBRAES
IDENTIFICAO
PINTURA FIXAO DOS SUPORTES
POSIO E DISTNCIA DOS SUPORTES
TUBULAES
INSPEO INSTRUMENTAL
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Atravs da Utilizao de Instrumentos os SeguintesParmetros Podero ser Avaliados:
Temperatura
Presso
Vazo
Vibrao
Picos de Presso Sequncia Operacional
Tenso
Corrente
Isolante Eltrico
Espessura da Pintura Interna do Reservatrio
Nvel de Contaminao do Fluido
Propriedades Fsico/Qumica do Fluido
INSPEO INSTRUMENTAL
MANUTENO DE EQUIPAMENTOS HIDRULICOS
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1 - CONHEA O PRINCPIO DO SISTEMA NO QUAL
VOC FAZ MANUTENO;
2 - ESTUDE ATENTAMENTE OS DIAGRAMAS E LEIA ASINSTRUES DO FABRICANTE;
3 - USE AS FERRAMENTAS CORRETAS EUSE-AS CORRETAMENTE;
4 - ALGUNS COMPONENTES SO DELICADOS E REQUEREM
JEITO ESPECIAL PARA FAZ-LOS FUNCIONAR;
MANUTENO DE EQUIPAMENTOS HIDRULICOS
MANUTENO DE EQUIPAMENTOS HIDRULICOS
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5 - NO EXPERIMENTE A NO SER QUE ESTA SEJA A
SUA LTIMA ALTERNATIVA;
6 - NO "QUEBRE-GALHOS", GASTE O TEMPONECESSRIO PARA FAZER O TRABALHO CERTO;
7 - PENSE EM SEGURANA: A MANEIRA MAIS
SEGURA DE TRABALHAR EM QUALQUERMQUINA DESLIG-LA ANTES;
8 - NUNCA TRABALHE NUM SISTEMA HIDRULICO SOBPRESSO.
MANUTENO DE EQUIPAMENTOS HIDRULICOS