marklin 4000 "Big Boy" Manual Del Usuario página 7

The extremely large locomotive places parti-
cular demands on your model railway system.
Before operating for the first time, please
check the following points in order to avoid
damage to the locomotive or your system:
The usable minimum radius is 360 mm.
G
However, we recommend that you select greater
radii if at all possible (> 500 mm).
G The clearance profile of the locomotive is wider
and higher than the dimensions specified for
European model railways. Overhead cable masts
and signals must therefore be mounted as far
away from the centre of the rails as possible. Ple-
ase pay attention to the signal drives, operating
levers or lanterns of the points drives which might
come into contact, depending on the installation
position. You must also take care with the tunnel
entrances, bridge handrails and platforms in the
vicinity of the bends in the sections.
G Points should be crossed at the appropriate speed.
This is particularly important for points with smaller
radii (up to 437.5 mm) and for curved sets of points.
G The locomotive has been designed primarily
for use with Märklin C-rails and K-rails. Contact
faults may occur in the event of very slow travel
on certain M-rails (curved points, three-way points).
G Crossings to inclines or gradients and transfer rails
(K-rail to C-rail or M-rail) should not be located
directly at the start of a bend. If necessary, move
the transfer point one rail length further away.
We recommend a careful test run with a second
person for assistance.
The maintenance work occurring under normal
operation is described below. For work on the
underneath of the engine, use the insert in the case
as a base. The heavy-duty motor and the drive
shafts require no maintenance. Please contact your
Märklin specialist for repairs and spare parts.
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