Operator`s manual

Cleaning The Wheels, Tires, and Track
Periodically check the locomotive wheels and pickups for dirt and buildup, which
can cause poor electrical contact and traction as well as prematurely wear out the
neoprene traction tires.
Wheels and tires can be cleaned using denatured (not rubbing) alcohol applied with
a cotton swab.
Your locomotive is equipped with two neoprene rubber traction tires on the rear
set of flanged drivers. While these tires are extremely durable, you may need to
replace them at some point.
RailKing USRA 2-8-8-2 Steam Engine
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Figure 6. Removing the Body and Lubricating the Grease Points