This manual covers the IHI 25J, 28J, and 30J Compact Excavator models, part of the J SERIES. These hydraulic mini compact excavator tractors are engineered for robust performance and reliability, featuring Isuzu Diesel Engines, specifically the ISUZU 3LB1 and ISUZU 3LD1 models. Designed for a variety of demanding tasks, these excavators are built to provide efficient operation and lasting durability, making them a valuable asset for any project requiring precision and power.

The purpose of this Service Repair Manual is to provide comprehensive guidance for the restoration and maintenance of your IHI Excavator. It is intended for workshop dealers, professional technicians, and home workshop mechanics. Inside, you will find step-by-step instructions, supported by numerous diagrams and images, covering all aspects of maintenance and repair. This manual will assist you in performing all necessary service procedures, ensuring your equipment operates at peak performance and longevity.