Rail King SD45 Operating Instructions Manual
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RAILKING SD45
DIESEL ENGINE
OPERATING INSTRUCTIONS
The RailKing SD45 is a model of a 3600HP Mainline Freight Locomotive. It has an ABS
body and stamped metal floor and runs on O-31 track. This RailKing Diesel Engine
contains M.T.H.'s Loco-Sound™ sound and train control system. The locomotive is
easy to operate with any compatible standard AC transformer (see the compatibility chart
on page 14), and is completely compatible with most other 3-rail locomotives, rolling
stock, and accessories.
Please read all the accompanying instructions carefully before setting up and operating
your locomotive.

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Summary of Contents for Rail King SD45

  • Page 1 DIESEL ENGINE OPERATING INSTRUCTIONS The RailKing SD45 is a model of a 3600HP Mainline Freight Locomotive. It has an ABS body and stamped metal floor and runs on O-31 track. This RailKing Diesel Engine contains M.T.H.’s Loco-Sound™ sound and train control system. The locomotive is...
  • Page 2: Table Of Contents

    Direction Lock Proto-Cast and Proto-Dispatch Volume Control Maintenance Lubrication and Greasing Instructions Cleaning the Wheels, Tires and Track Locomotive Traction Tire Replacement Locomotive Light Bulb Replacement Troubleshooting Compatibility Transformer Compatibility Chart Safety Precautions Service and Warranty Information RailKing SD45 Diesel Engine...
  • Page 3: Initial Lubrication

    Use light household oil and follow the lubrication points (marked “L” in Fig. 2 on pg. 8). Do not over-oil. Use only a drop or two on each pivot point. At this point, you are ready to put your engine on the track and begin running RailKing SD45 Diesel Engine...
  • Page 4: Basic Operation

    To prevent accidental high-speed start-ups, this engine is programmed to restart in neutral each time the track voltage is turned off for 25 seconds or more. RailKing SD45 Diesel Engine...
  • Page 5: Speed Control

    1 horn, 3 bells code to return the engine to its normal state, even if the en Feature to Be Activated: Button Code: Speed Control On/Off 1 Whistle, 2 Bells Lock into a Direction/Unlock 1 Whistle, 3 Bells RailKing SD45 Diesel Engine...
  • Page 6: Proto-Cast And Proto-Dispatch

    If you experience popping and interference, try cleaning the track with denatured alcohol as described in the “Cleaning the Wheels, Tires and Track” section of this booklet. Note: M.T.H. does not recommend using Proto-Cast and Proto-Dispatch at the same time. RailKing SD45 Diesel Engine...
  • Page 7: Volume Control

    (see Fig. 1). Loco-Sound Volume Adjustment Knob Figure 1. Location of the Loco-Sound Volume Adjustment Knob RailKing SD45 Diesel Engine...
  • Page 8: Maintenance

    Figure 3. 3. Once the motor mount screw has been removed, pull the motor away from the truck block and lightly coat the motor worm gear and bronze drive gear (in the truck block) with grease. RailKing SD45 Diesel Engine...
  • Page 9 It is also a good idea to lubricate the outside truck block idler and drive gears with grease occasionally. Add grease to the points marked with “G” in Figure Body Mount Screws Body Mount Screws Idler Drive Gear (G) M o tor Mount Screw Figure 3. Lubrication Points on the Engine RailKing SD45 Diesel Engine...
  • Page 10: Cleaning The Wheels, Tires And Track

    Once the truck sides have been removed: 1. Make sure the old tire has been completely removed from the groove in the drive wheel, using a razor blade or small flathead screwdriver to pry away any remains. RailKing SD45 Diesel Engine...
  • Page 11: Locomotive Light Bulb Replacement

    Fig. 5 and replace it. You can obtain replacement bulbs directly from the M.T.H. Parts Department. Un plug wire from spring contact bracket. Figure 5. Location of the headlamp in the Engine. RailKing SD45 Diesel Engine...
  • Page 12: Troubleshooting

    Follow the procedure in the with the engine sounds running. “Lock into a Direction” section. Engine speed must be below 10 scale The engine won’t lock into forward, mph (approx. 10 volts or less in neutral, or reverse. conventional mode). RailKing SD45 Diesel Engine...
  • Page 13: Compatibility

    This engine will operate on any traditional O-31 or larger O Gauge track ® ™ system, including M.T.H.’s RealTrax or ScaleTrax or traditional tubular track. It is also compatible with most standard AC transformers. (See page 14 for a complete list of compatible transformers and wiring instructions.) RailKing SD45 Diesel Engine...
  • Page 14: Transformer Compatibility Chart

    Standard Lionel SW Unknown 130-Watt Standard Lionel TW 8-18v 175-Watt Standard Lionel ZW A,B,C or D 8-20v 275-Watt Standard Lionel Post-War A,B,C or D Common 0-20v 135/190 Watt Electronic Celebration Series ZW * Conventional Mode Only RailKing SD45 Diesel Engine...
  • Page 15: Safety Precautions

    In the event such conditions exist, the transformer should not be used until properly repaired. RailKing SD45 Diesel Engine...
  • Page 16: Service And Warranty Information

    Service & Warranty Information How to Get Service Under the Terms of the Limited One-Year Warranty For warranty repair, do not return your product to the place of purchase. Instead, follow the instructions below to obtain warranty service as our dealer network is not prepared to service the product under the terms of this warranty.

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