MTH Electric Trains DL-109 Diesel Engine Operating Instructions

Operating manual for MTH Electric Trains DL-109 diesel locomotive with instructions on smoke, sound, coupler, and troubleshooting.


MTH Electric Trains DL-109 Diesel Engine Operating Instructions - cover page
Brand
MTH Electric Trains
Document type
User Manual
Language
English
Pages
36
File format
PDF
File size
454 KB
Published
05 November, 2026
Updated
05 November, 2026
MD5 checksum
14C9549AFF1741B5C8C97E3B2D63062D

About this manual

This manual provides detailed operating instructions for the MTH Electric Trains DL-109 diesel locomotive, including setup, smoke unit operation, Proto-Sound® features, horn and bell controls, Proto-Coupler® usage, and troubleshooting. It also covers maintenance tasks like oil lubrication, traction tire replacement, and light bulb replacement. The locomotive is designed for O-42 3-rail track and is compatible with most other 3-rail models and accessories.

The manual includes sections on programming features such as squeaking brake sounds, passenger station sounds, and remote lock-out control. Safety warnings are included, advising users to read all manuals before use and to supervise children under 8 years old. The locomotive is equipped with a self-charging battery backup system and a Proto-Sound® DCRU® reverse unit for realistic operation.

What's inside

  • Quick Start - Basic Operation
  • ProtoSmoke® Unit Operating Instructions
  • Proto-Sound® Operating Instructions
  • DCRU® Reverse Unit Operation
  • Horn Operation
  • Bell Operation
  • ProtoCoupler® Operation
  • Squeaking Brake Sounds
  • Passenger Station Sounds (PFA)
  • Reverse Unit Lockout Control Functions

Frequently asked questions

What is the scale size of the DL-109 locomotive?

The locomotive is a ¼” scale reproduction.

What is the length of the DL-109 locomotive?

It measures over 19” in length.

What type of track is the DL-109 compatible with?

It is capable of operating on O-42 3-rail track.

What must be done to prime the smoke unit before operation?

Add 20 - 25 drops of smoke fluid through the smoke stack.

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