4 RailKing GP-7/9 Diesel Engine
Priming The Smoke Unit
When preparing to run this engine, add 15-20 drops of smoke fluid through the
smokestack (see Fig. 2). We recommend M.T.H. ProtoSmoke, Seuthe, LGB, or LVTS
fluids. Do not overfill the unit or the fluid may leak out and coat the interior engine
components.
If you choose not to add the fluid (or have already added the fluid but choose to run
smoke-free), turn off the smoke unit switch located under the engine (see Fig. 3).
Failure either to add fluid to the unit or to turn it off may damage the smoke unit
heating element and/or wicking material.
Add Smoke Fluid
Figure 2: Adding Smoke Fluid
Smoke Unit
ON/OFF Switch
Figure 3: Smoke Unit Switch Location
Running the engine without a primed
smoke unit may cause damage
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