Roco LINE Mode D'emploi page 25

This results in four possible combinations of switch positions:
1. Both switches are next to the turntable symbol: running power is applied
only to the turntable bridge track itself (see figs. 30 and 31, page 15).
2. The left switch is set away from the turntable symbol in the direction of
the arrow, the right switch is next to the turntable symbol: the track ad-
jacent to the engine-shed end of the bridge is powered, the other track is
turned off (if in the current bridge position tracks connect to each bridge
end)(see figs. 32 and 33).
3. The right switch is set away from the turntable symbol in the direction
of the arrow, the left switch is next to the turntable symbol: the track
adjacent to the engine-shed end of the bridge is turned off, the other
track is powered (if in the current bridge position tracks connect to each
bridge end) (see figs. 34 and 35).
Maintenance of the drive unit:
a) Lubrication of the drive unit:
As is the case with all motorized ROCO models, great care was taken to
make the mechanical parts of the drive unit as rugged, wear-resistant and
maintenance-free as possible; this includes an effective protective cover for
the entire under-floor drive mechanism. Nevertheless, from time to time the
turntable "underground" should be inspected. To this end, initially remove
the protective lid from the circuit board of the underfloor drive. As is shown
in Figure 38 the small crosshead screw in the depression of the protective lid
must be loosened and completely removed as a first step. Then introduce a
flat medium-size screwdriver in the demoulding openings of the mounting
claws on the switch side of the protective lid – as also shown in Figure 38
– and slightly force the claws to the outside to separate them from the
circuit board. Then tilt the protective lid downwards. Once this has been
done the protective lid will automatically release the circuit board on the
other side and the protective lid can be completely removed. Now the entire
drive mechanism is open and the large drive worm gear can be lubricated
(e.g. with the special ROCO gear grease 10905, see fig. 21, page 10, orange
arrows. Occasionally, but not too often, the bearings of the worm gear shaft
(see fig. 21, page 10, green arrows) should receive a small drop of thin, resin-
free sewing machine oil.
The zinc-alloy motor chamber contains all other gears. It is supported by vi-
bration-damping soft-plastic plugs, one each is located between screw-head
and motor chamber and between motor chamber and gear frame (pit of the
turntable) for each screw to reduce noise. These three screws should be re-
moved to be able to service the second worm gear stage at the motor side.
Care must be taken not to lose the soft-plastic plugs and to avoid breaking
off the motor wires while carefully removing the motor chamber from the
circuit board!
To be able to lubricate the second worm gear, directly next to the motor and
the adjacent multi-stage spur gear, both screws of the gear cover near the
motor must be unscrewed and the cover removed (see page 12, fig. 24, black
arrows). The worm gear located above the slip-clutch on the motor shaft
should also receive a little ROCO special grease (see page 12, fig. 24, blue
arrows). Finally, the worm gear wheel bearings (red arrows) should also be
lubricated with and occasional drop of resin-free, thin sewing machine oil.
Please do not lubricate too much! Only one "lube-service" per year is neces-
sary even for frequent operation of the turntable.
"Manual operation" of the turntable with control power switched on
Due to the presence of the slip clutch it is always possible, if necessary, to
turn the bridge by hand. Corresponding to the last direction of rotation set
by the manual control unit, it will continue to turn automatically until it rea-
Scenic completion of the operations centre
The turntable is certainly the central object in every operations centre or
train dispatch facility, as it is called in Austria. Therefore a great number of
buildings and facilities which are essential for supply and maintenance of
locomotives are located in its vicinity. Many suitable building and structure
kits a
42615 Anleitung deutsch.indd 25
4. Both switches are set away from the turntable symbol in direction of the
arrows: if in this situation access tracks are in line at both ends of the
bridge, they are now continuously powered as through-track. This makes
sense when a locomotive, coming from the service facilities, should pro-
ceed directly across the bridge into an engine shed track at the opposite
side, or proceed from the engine shed directly to an exit- or bypass track
without having to be turned in between (see figs. 36 and 37).
Generally, the following applies:
Case 2 or 3 are applicable when a locomotive should proceed on to the
bridge or leave it. Not absolutely necessary, but as safety measure for nor-
mal layout operation it is recommended to set case I while the bridge is
turning and to set the speed control at the control transformer to "0". This
will definitely prevent unpleasant "surprises"!
After completion of the lubrication the motor chamber must be screwed
back in its correct position (do not forget the vibration-damping soft-plastic
plugs and the correct insertion of the drive shaft to the large worm gear!).
Then the protective cover is clipped back in the correct position. Please pay
attention to the two operating mode switches to so that they are placed into
the openings of the cover rather than being pushed down. If everything has
been properly assembled check the position of both operating mode switches
and id necessary, correct to conform to the turntable operating mode appli-
cable to your layout.
b) Replacement of the motor brushes or of the drive motor:
To have access to the drive unit, consisting of motor, slip clutch and motor
worm gear, proceed in the same manner as described above for lubrication.
• Replacement of the drive unft: Remove the slip clutch and motor worm
gear located on the drive shaft together with the motor itself, after taking
off the motor protective cover (unscrew two screws for this), carefully
from the gear box, then lift the motor out of the contact springs at the
commutator side of the motor.
Install new drive unit (replacement part no. 105284) in reverse order of
disassembly, make sure that the contact surfaces of the brush-bearing
screws come to rest correctly between the contact springs of the circuit
board and are not bent. See fig. 21, black arrows.
• Replacement of the drive motor commutator brushes: Proceed exactly as
described above for "Replacement of the drive unit" until has been remo-
ved from the housing. Then unscrew the brush bearing screws from the
motor frame (Careful! the springs located inside the brush bearing screws
tend to jump away while doing this work and are then hard to find espe-
cially on carpeted floors...), remove brush springs and worn brushes, and
if necessary clean brush channels and commutator with a lintfree cloth
patch (possibly soaked in lighter fluid). Insert the new brushes (replace-
ment part no. 89743) and brush springs into the brush bearing screws
and screw these into the bearing. Assure that the screws are inserted
straight and not at an angle, otherwise the threads could be damaged.
The remaining assembly proceeds as already described above under "Re-
placement of the drive unit".
ches the next following access track in the direction of rotation. Here it will
stop. This operating possibility can be useful if the manual control unit has
been placed at an appreciable distance away from the turntable.
re available, among others those of the firm Faller. As a suggestion, several
pictures of an operations centre layout, excellently built with Faller material
by Bruno Kaiser, Cologne, are shown.
GB
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31.01.2011 09:18:57