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- Manuals
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- Languages
- EN
- Last added
- 2026-11-05
Featured M.T.H. manuals

MTH SD-80/90 MAC Diesel Engine Operator's Manual
This document serves as the operator's manual for the MTH Premier EMD SD-80/90 MAC diesel engine equipped with Proto-Sound 3.0. It provides instructions for initial setup, including lubrication and priming the smoke unit, as well as configuring the locomotive for 2-rail or 3-rail track operation. The guide details various operating modes, including Conventional AC/DC, DCS, and DCC, along with specific instructions for using the Proto-Sound 3.0 enhancements like custom speed tables and advanced consisting.
Covers: Before You Begin · Set Up Checklist · Lubrication · Priming the Smoke Unit · Configuring Locomotive for 2-Rail or 3-Rail Operation · PS 3.0 Enhancements
Latest M.T.H. manuals
MTH SD-80/90 MAC Diesel Engine Operator's Manual
User Manual 50 pages · 976 KB · ENThis manual covers setup, operation, maintenance, and troubleshooting for the MTH SD-80/90 MAC diesel engine with Proto-Sound 3.0 technology.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in M.T.H. manuals
What happens when I first apply power to a PS3.0 engine?
The headlight comes on but nothing else while the capacitors charge for 1-15 seconds.
How much smoke fluid should I add?
You should add 15-20 drops of smoke fluid through the smokestack.
