Mercedes-Benz OM 904 LA and OM 906 LA Engine Maintenance Manual

The OM 904 LA and OM 906 LA are the diesel engines that power many cranes and other heavy machines. When one comes due for service, the mechanic needs the intervals and the oil and filter routine in front of them. This manual is for that moment: you've got a unit in the yard and need to know what gets done at the next service.

What this manual helps you do

• Plan the next service by working through the maintenance categories and maintenance intervals.
• Change the engine oil and replace the filter using the engine oil change and filter replacement section.
• Follow the maintenance work and additional work steps in the order the manual sets out.
• Record completed services in the confirmations of maintenance service pages.
• Verify leak tightness and general condition, and log coolant renewal in the confirmation sections.

Who this is for

A field service mechanic or workshop mechanic who looks after cranes with these engines. You'd use it on site to check what's due, do the work, and sign off each service so the next person knows where the machine stands.

FAQ

Q: What do I receive and how is it organised?

A: You get 1 PDF file of 194 pages in English, Spanish, German, French and Italian. The text can be searched and copied, so you can jump straight to an interval or a task. It includes an engine data card section.

Q: Which engines does it fit?

A: It covers the OM 904 LA and OM 906 LA. The title wording on the manual is "OM 904/906/926 LA Maintenance Booklet", and the publication number is 6462 4902 76.

Q: How does it fit my job?

A: If you're running scheduled maintenance, it gives you the categories, intervals and work steps in one place. The confirmation pages give you a written record of what was done.

Keep it open at the next service and work down the intervals, then sign off each job as you finish it.

Click here to view the preview (PDF)

Table of Contents:

• Introduction
• Notes on maintenance work
  • Service products
• Engine oil change and filter replacement
  • Engine oils
  • Fuel sulphur content
  • Operation with FAME fuel (bio-diesel fuel)
• Maintenance categories
• Maintenance intervals
  • Maintenance by operating hours (h)
• Maintenance work
• Additional work
• Confirmations of maintenance service
• Confirmations for leak tightness and general condition check
• Confirmations for coolant renewal
• Engine data card

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