Design of a Simple Valve Spring Compressor for Maintenance of the Cylinder Head of Tugboat Engine Muhammad Firdaus Jauhari (a*)- Rusmini Sri Maryati (a) - Raihan (a)
(a) Politeknik Negeri Banjarmasin, Indonesia
*firdaus.jauhari[at]poliban.ac.id
Abstract
One method of maintaining and repairing engines is through periodic maintenance, which involves implementing preventative maintenance tasks periodically based on calendar time or working hours following the manual instruction book. The Top Overhaul represents the initial phase of maintenance and repair for cleaning, inspection, measurement, analysis, or replacement of all engine parts/materials being overhauled. This research represents the design phase of a specialized tool used in the maintenance procedures of tugboat engines, particularly in the Top Overhaul process. This research involves the design of a simple valve spring compressor, a specialized servicing tool aimed at aiding the process of compressing the spring when installing or removing the valve cotter in the cylinder head of the tugboat engine S6R2-MTK3L. The cotter valve functions to secure the valve with the spring through a retainer component. This cotter valve component is commonly referred to as a split pin, valve keeper, or valve pin. Installing or removing this part is a challenging task, thus requiring a specialized tool to execute it easily without damaging other components. The steps in designing the simple valve spring compressor are as follows: Conducting a literature review and designing the simple valve spring compressor for the maintenance of the cylinder head of the tugboat engine S6R2-MTK3L, performing weight and material strength calculations, conducting trials of the special tool, and comparing the performance before and after the introduction of the special tool. The material chosen for the simple valve spring compressor is alloy steel. The purpose of introducing alloy elements is to attain desired properties suitable for its intended application, including enhancing toughness, tensile strength without compromising ductility, maintaining properties at high temperatures, improving corrosion and fatigue resistance, increasing hardness, enhancing machinability, and augmenting elasticity. The design of the simple valve spring compressor comprises four main parts: the Pillar, Bridge, Sliding Clamp, and Attachment. The use of the specialized tool, the Simple Valve Spring Compressor, enhances the efficiency and accuracy of technicians^ work in maintaining the cylinder head of the tugboat engine S6R2-MTK3L. In practice, this tool enables the valve spring compression process to be more efficient, minimizing potential damage, and reducing the time required for maintenance tasks. As a result, increased productivity and reliability in the engine repair process can be achieved more effectively, allowing technicians to focus on other aspects of engine maintenance and reducing overall vessel downtime.
Keywords: Design- Valve- Spring compressor- Tool- Engine
