Roco LINE Mode D'emploi page 22

Installation Procedures: Mechanical
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a) Insertion and removal of access tracks and filler pieces:
Around the concrete pit of the turntable a segment-receiving groove, open
towards the top, is provided (fig. 13, detail*; along its inner (higher) edge
runs a locking collar around the entire pit (fig. 13, detail**). The access
tracks as well as che filler pieces have a flexible locking projection along
their front sides (fig. 14, detail*). If an access track or filler piece is pushed
into the groove to the detent, the locking projection will engage audibly
into the locking collar of the pit. To remove a filler piece or access track the
locking projection must first be pushed in slightly with a finger nail or smali
screw driver (see fig. 14) and then lift off the part while still pushing in the
locking projection.
b) Preparation of the surface:
Regardless whether the layout is built as frame-or panel system it is re-
commended to construct the locomotive service area consisting of turntab-
le, loco shed and other facilities on a sturdy panel with framing supports,
paying attention to install the panel flat and horizontally. A circular hole
with 280 mm (11") diameter is cut into the panel. The outside diameter of
the turntable pit has only about 270 mm diameter, the remaining 2x5 mm
difference are needed for placement of the interrogation contact connec-
tions underneath the access tracks for the track pre-selection control (art.no.
42618). These spaces in the vicinity of the access tracks must be available
under any circumstances; otherwise damage to these contacts can occur
and cause malfunctioning of the track pre-selection control!
Since prototype tracks are usually placed in "sunken roadbeds" (see figs.15b
and 16) throughout the operating centre, as has been indicated in the access
tracks to the turntable, it is recommended to use ROCO LINE track without
ballast roadbed for the shed tracks and those of the loco servicing facilities
and to switch to ROCO LINE track with roadbed only where the service area
tracks join the remainder of the layout. Analogous considerations apply to
other track systems (for 3-rail AC system "K" track should be used for the
service area and, if wanted, "M" track for the remainder of the layout).
c) Direct siding track of the turntable to ballast roadbed track (ROCO-
LINE with ballast roadbed track or ROCO geoLINE):
However, if the loco shed area including the shed tracks is to be equipped
with ballast roadbed tracks, the upper edge of the track of the turntable
platform and its spur tracks must be elevated to match the level of the
ballast roadbed tracks leading to the turntable first. This is done by placing
plywood, cardboard, or rigid Styrofoam (thickness of approx. 6 mm) under-
neath the filler pieces and the spur tracks. Continue building the tracks as
follows:
- For ROCO-LINE ballast roadbed tracks: It is now possible to connect
these directly to the spur tracks of the turntable since track profile, railroad
tie shape, and track rail bond match one another. The spur tracks themselves
must be positioned with ballast as needed (suitable track ballast: Item No.
42652); the space between the spur tracks can also be filled with the ballast
plate (Item No. 42653) if and as needed.
- For ROCO-geoLINE ballast roadbed tracks: The easiest solution here
to create the transition from the geoLINE track to the respective spur track
is to use the junction track Item No. 61120. Continue as described for the
ROCO-LINE ballast roadbed track.
If this solution is not feasible (for example, due to space restrictions), the
geoLINE track can be slightly "modified" to directly connect to the respec-
tive spur track by using the ROCO hobby saw Item No. 10900 or a similar
tool to saw off the guide tongue located directly underneath the rail bond
on the geoLINE track end to be connected to the spur track of the turn-
table. This is possible because track profiles and rail bond match exactly
between the new ROCO-geoLINE track and the ROCO-LINE track without
ballast and with that the twin-conductor DC spur tracks of the turntable as
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42615 Anleitung deutsch.indd 22
well. Continue as described for the ROCO-LINE ballast roadbed track with
this solution, too.
d) Fitting the turntable Into the cutout of the layout.
After having cut the required hole into the baseplate of the operations cen-
tre area, the turntable is temporarily equipped with 3 access tracks at 120°
or 4 access tracks at 90° separation and then placed into the cutout. It is
not necessary to have alt possible filter pieces installed! In the cutout the
turntable including pit, access tracks and filler pieces is rotated carefully to
check if the free space in the cutout is sufficient for the later, permanent
installation. If one of the interrogation contacts touches anywhere along
the cutout edge, even though the turnout itself is centered in the cutout, the
cutout edge must be reworked sufficiently at this point! Otherwise damage
to the contacts can take place during final installation of the turntable! If
this insertion test is entirely satisfactory, the turntable is removed for final
attachment of tracks and filler pieces.
e) Installing turntable access tracks:
As long as the turntable is not equipped with all possible access tracks it is
recommended to select the part of the concrete rim which is factory equip-
ped with 9° filler pieces for the largest section without access tracks, to
remove the adjacent 6° filler pieces as described under a) of this chapter and
then attach the first access track directly adjacent to a 9° filler pieces
According to the planned loco service and engine shed tracks, all additional
access tracks are attached with the desired angles, whereby angles between
adjacent tracks do not have to be equal (see page 2, fig. 1, equal angles,
and fig. 2, different angles) but can be freely selected (also see the following
suggestions especially regarding "opposite access tracks"!). Afterwards the
remaining empty spaces between tracks are covered with matching filler
pieces. Depending on the extent of the open space one or more filler pieces
with 1°-, 3°-, 6°- or 9° segmentation will be required - see fig. 17. If the
connecting tracks sections are already within the engine shed, the service-
or entrance/departure area, the exact position of the access tracks should be
checked by temporary insertion of the turntable into the cutout hole before
the filler pieces are attached. A necessary correction of location or angle of
an access track which does not exactly match its connections to another
track can be done much easier before the filler pieces are attached then
afterwards'
Important:
If, at a certain position of the bridge, access tracks should connect at both
ends it is important to make sure thal the rail profiles of both access tracks
are exactly in line with those of the bridge raits! This is done easiest as
follows:
• First insert only one of the access tracks at the location wanted into the
receiving groove until it engages audibly.
• Turn the turntable manually to this access track and align it so that the
inner edges of the bridge rail profiles are exactly in line with the profiles
of the access track! As soon as this done the bridge must not be moved
again.
• Attach the second access track at the opposite, still open end of the
bridge by inserting it until fully engaged.
• Align the second access track by slight movement to the right or left
until the inner rail edges of this access track match exactly with the inner
edges of the bridge rail profiles (see fig.18).
• Finally perform a visual check by sighting along one inner rail edge from
the front access to the rear access track across the bridge rails. No offset
must exist between the inner edges of all three rail sections (not like
fig.19). Otherwise the alignment procedure as described must be repea-
ted to assure trouble-free passage across the bridge.
If however at two opposite access tracks an (angular) offset should be in-
stalled deliberately (e.g.to avoic tight radius curves or unsightly kinks) care
must be taken that the offset to the exact alignment is at least 3° (see fig.
7, page 4) so that the turntable control can reliably recognize the diffe-
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