Building and Finding Efficiency of Tucks Tire Changer Machine

Abstract

The purposes of the research were to 1) design and make the truck tire removal machine; 2) find the efficiency of use; and 3) study the satisfaction of truck tire changer users. The results of the research showed that the design and make of the truck tire removal machine had dimensions of width x length x height were equal to 60 x 100 x 35 centimeters and was equipped with various equipment such as a 3-horsepower electric motor, a gear reducer 1:60, a rim handle axle shaft, a wheel rim, a pulley, and a transmission belt. And there was a switch to control the operation of the electric motor. Usage efficiency: when conducting experiments to find efficacy with an ISUZU single-axle 10-wheel truck, model FVM 300/240 horsepower, we set the speed of the reduction gear at 12 rpm and conducted 3 experiments comparing the use of human power to remove and put 10-truck tires. By conducting 3 experiments with the same vehicle, it was found that the removal and insertion of truck tires using a truck tire removal and insertion machine was more efficient. Remove and install tires faster and in less time compared to manual labor. The results of the experiment compared with time showed that the average time required for manual labor to remove truck tires was 1.12 minutes, and the average value for the installation of truck tires was 1.23 minutes, totaling 2.35 minutes. And using a truck tire changer machine, the average time of truck wheel removal was 0.45 minutes, and putting truck tires took an average of 0.47 minutes, for a total of 1.32 minutes, which this machine takes less than the use of manpower, with a total average of 1.03 minutes. So, it can help reduce operational time. The results of a study of user satisfaction towards truck tire changers overall were at a very satisfactory level  (= 4.19, S.D. = 0.43). If considering each factor individually, it was found that the service users were satisfied with the truck tire changer in descending order, namely: functionality (= 4.25, S.D. = 0.43), design (= 4.22, S.D. = 0.44), and make (= 4.14, S.D. = 0.42).