PROTOTYPING OF AUTOLUBRICATION SYSTEM FOR SINGLE CYLINDER LISTER DIESEL ENGINE VALVE TRAIN USING ON-OFF CONTROLLER

• Main Author: PRABOWO (NIM : 13107058); Dosen Pembimbing : Ir. Ignatius Pulung Nurprasetio, TRESNADI
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/17453
• Institution: Institut Teknologi Bandung

The focus of this undergraduate thesis is the design and prototyping of an autolubrication system for push rod and rocker arm of a single cylinder 600 cc Lister diesel engine <br /> <br /> <br /> by on-off controller. The motivation comes from the fact the Lister is an ancient diesel engine. The components are all made by overdesign approach with very high safety factor. The above fact has been discussed in a different undergraduate thesis. Despite the high safety factor, the <br /> <br /> <br /> lubrication of important valve train components such as the push rod and rocker arm are executed manually. Since the engine is intended for rural area, the above parts are prone to under lubrication which may lead to shorter life time. To promote longevity and help the operator, we raise the idea to equip the machine with an autolubrication system. In order to bring the idea into fruition, a prototype of the autolubrication system has been designed and manufactured using the available components available in the market. The original solid lubricant (grease) is replaced with oil. The oil is pumped from the main reservoir, and the pump is triggered by contactor. To control the oil level, a float which is placed in a reservoir on top of the diesel engine is employed. The lubricant in the form of oil drop will fall on the push rod and rocker arm. As the oil level decreases, the float will eventually hit a limit switch that will trigger the pump to refill the upper reservoir. On the other hand, as the float gets to the top of the upper reservoir, it will hit another limit switch that will stop pumping operation. Once the manufacturing is completed, the prototype is tested based on functionality. Since the main objective of the test is to see whether the auto-lubrication system is performing <br /> <br /> <br /> according to design requirement, the test was not performed on the real engine. Functional design showed that the prototype works well. Despite the success of the prototype, further development and modification needs to be carried out before the auto-lubrication system may be installed on the real Lister diesel engine.