Developing the Machine for Gear and Differential Oil Filling

Abstract

The objectives of this research were to: 1) develop a machine for filling gear oil and differential oil in an automotive service center, 2) study the performance of the gear and differential oil filling machine, and 3) study the satisfaction of service center technicians towards the use of the gear and differential oil filling machine. The population in the study included automotive service technicians in Trang Province. The 5 testers in the sample group were selected by purposive sampling technique from automotive service technicians of Theensak Auto Service Co., Ltd.,. The research instrument included data recording form for testing the developed machine and a 5-level rating scale questionnaire of 2 aspects based on the technicians’ satisfaction. The research statistics for data analysis included percentage, mean, and standard deviation.

The research results are as follows. 1) The developed automobile gear and differential oil filling machine consisted of a new oil tank, an air compressor, an air storage tank, an air pressure gauge, a used oil storage tank, and a used oil funnel.  2) The efficiency test on 3 types of oil filling showed that the developed gear oil and differential oil filling machine took less time than using a manual pump at the average of 102.8 seconds, or in other words, the work efficiency increased by 53.23 percent. Finally, 3) the technicians reported their satisfaction towards the use of the developed gear oil and differential oil filling machine at a high level.