Nothing lasts forever: Items missing from your preventative maintenance system

2021 ◽  
Author(s):  
Pamela Nelson ◽  
Katherine Anderson
2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Burhan Nudin ◽  

Abstract The purpose of this study is to determine the optimization of machine maintenance which is applied by the company (companies), the problems that arise in the maintenance system, and the cost of both preventive maintenance and subsequent corrective maintenance activities, to determine the alternatives that is most optimal. The case study will be conducted in the PT Great Giant Pineapple by focusing the research on Ridger Palir machine. The selection will done in this machine, that is to say, considering terms of maintenance, and the high price of the spare parts. Based on the research results that have been done on PT Great Giant Pineapple, the engine maintenance activities, the general implementation of the engine maintenance, shows the company has been running pretty well, but not yet optimal. Out of the problems found in these, the author tried to find a solution by taking into account the cost efficient in carrying out maintenance and engine solutions to the problem of spare part procurement. Preventive maintenance system may be optimal for the efficiency of the company if the determination of the machine preventative maintenance period is predominant. Machine preventative maintenance period can be optimized with the average, that is, the average treatment which cab conducted once every 6 months. Keywords: maintenance, preventive maintenance, corrective maintenance


Results of the Ayrshire breed cows, Holstein cows and Holstein-Yaroslavl cross breed cows milk productiv-ity analysis in the same environment conditions and depending on the kappa-casein and beta-lactoglobulin genotypes are presented in this article. The animals are kept in the common environmental conditions of the LLC Farming firm “Pakhma», the Ayrshire breeding plant. Feeding of cows here is carried out according to detailed norms, concentrated feed averages 43%. The maintenance system is year-round stalling, milking is carried out in the milk line, the DeLaval milking machine is used, and labor-intensive processes in animal husbandry are mechanized. The farm has a milk processing shop. It was established that all the inspected cows (n=91) had a prevailing AA kappa-casein genotype – 75,8% on average. BB Ayrshire breed and Hol-stein-Yaroslavl cross breed genotypes were not established. AB and BB beta-lactoglobulin genotypes are seen on average with a frequency of 44%. AA beta-lactoglobulin genotype in Holstein cows breed was not found. The indicators of statistically reliable difference in milkability among all groups and genotypes was not estab-lished. A higher consistence of protein in the milk of B-allele kappa-casein type cows is evident in all groups with no difference between breed belonging. The complex variant of CSN3/LGB genotypes showed that ac-cording to ultimate milk fat and protein yield the most productive cows were:АВ/ВВ, АВ/АВ genotype Ayr-shire cows, АВ/АВ Holstein genotype cows, AB/BB genotype Holstein-Yaroslavl cross breed cows. Hence, the most efficient cows are those with B-allele variants.


2020 ◽  
Vol 2 (1) ◽  
pp. 197-202
Author(s):  
Rudiana ◽  
Rr. Retno Safitri ◽  
Retno Junita

Sekoci merupakan alat penolong yang dapat digunakan untuk evakuasi seluruh awak kapal karena memiliki konstruksi yang lebih kuat dari alat penolong lainnya. Masalah yang sering terjadi adalah kurang terampilnya ABK tentang perawatan dan pengoperasian sekoci yang sesuai dengan prosedur dan rendahnya  perawatan sekoci di atas MV Kartini Baruna. Kemudian tujuan penelitian ini yaitu untuk mengetahui penyebab kurang terampilnya ABK tentang perawatan dan pengoperasian sekoci yang sesuai dengan prosedur dan mengetahui penyebab rendahnya  perawatan sekoci di atas MV Kartini Baruna. Metode yang digunakan adalah deskriptif kualitatif. Dari hasil penelitian diperoleh kesimpulan bahwa faktor yang menyebabkan kurang optimalnya kinerja dari sekoci di MV. Kartini Baruna adalah kurangnya spare part, penerapan PMS (Plan Maintenance System) yang tidak sesuai ketentuan, kurang terampilnya anak buah kapal (ABK) dalam pengoperasian sekoci. Faktor yang menyebabkan perawatan lifeboat yang kurang baik terhadap crew di MV. Kartini Baruna adalah lambatnya proses pengoperasian sekoci, membahayakan keselamatan crew diatas kapal. Kemudian upaya yang dilakukan untuk mengoptimalkan perawatan terhadap lifeboat di MV.Kartini Baruna yaitu dengan menerapkan PMS (plan maintenance system) sesuai ketentuan atau panduan


1985 ◽  
Author(s):  
R. J. Ritchie ◽  
J. C. Notestine ◽  
J. S. Schmidt ◽  
J. N. Irvin ◽  
C. P. Vaziri

2019 ◽  
Author(s):  
Suwan Chung ◽  
Soonwook Kwon ◽  
Daeyoon Moon ◽  
K.H. Lee ◽  
J.H. Shin

Tomography ◽  
2021 ◽  
Vol 7 (1) ◽  
pp. 39-54
Author(s):  
Veerle Kersemans ◽  
Stuart Gilchrist ◽  
Philip Danny Allen ◽  
Sheena Wallington ◽  
Paul Kinchesh ◽  
...  

Standardisation of animal handling procedures for a wide range of preclinical imaging scanners will improve imaging performance and reproducibility of scientific data. Whilst there has been significant effort in defining how well scanners should operate and how in vivo experimentation should be practised, there is little detail on how to achieve optimal scanner performance with best practices in animal welfare. Here, we describe a system-agnostic, adaptable and extensible animal support cradle system for cardio-respiratory-synchronised, and other, multi-modal imaging of small animals. The animal support cradle can be adapted on a per application basis and features integrated tubing for anaesthetic and tracer delivery, an electrically driven rectal temperature maintenance system and respiratory and cardiac monitoring. Through a combination of careful material and device selection, we have described an approach that allows animals to be transferred whilst under general anaesthesia between any of the tomographic scanners we currently or have previously operated. The set-up is minimally invasive, cheap and easy to implement and for multi-modal, multi-vendor imaging of small animals.


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