GB/T 26089-2021 in English

Background of Standard Revision and Technological Evolution

GB/T26089-2021, as the latest national standard for the compilation of the marine diesel engine manual, has replaced the 2010 version for more than ten years.

1. The penetration of the whole life cycle management concept, and the addition of maintenance and structural instructions
2. EGR system and SCR system and other environmental protection technologies
3. The standardization requirements of digital document preparation technology

Comparison of core revisions

Key content implementation points

1. Manual system architecture

2. Safety specification upgrade

The new standard clearly requires in Chapter 6.1.3:

"Safety warning signs should use the standard symbols specified in GB2894, set up an independent safety page at the beginning of the manual, and configure a special disposal flow chart for major risks such as scavenge box fire and crankcase explosion"

Industry application suggestions

1. Document digital conversion

It is recommended that enterprises establish:

1. XML structured document database
2. Three-dimensional graphical modular management system
3. Multi-language version collaborative writing platform

2. Maintenance plan formulation

Refer to clause 6.2.7, it is recommended to adopt:

 Four-dimensional table example of [operating cycle]→[inspection items]→[tool list]→[standard parameters]: 500-hour inspection requires measurement of piston ring clearance (standard value 0.4-0.6mm) 

Frequently Asked Questions

Q: What are the differences between the manuals of two-stroke and four-stroke engines?
A: The standard clearly states in Appendix B/C:
• Two-stroke needs to include special instructions for crosshead and frame
• Four-stroke needs to strengthen the body vibration monitoring requirements