technical sheet

technical
sheet
MC1211
tracks
for building maintenance units
(BMU)
T-528
2
11/98
1/11
A track at roof level is required to allow the machine to traverse.
Two different types of track may be considered: one in concrete and the other with two metal rails.
1. Concrete track
During the construction of the building, it is economic to
lay a track in reinforced concrete, which should be
strong enough to withstand the pressure imposed by the
front and rear wheels of the machine.
If an expansion joint or a joint between two sections of
concrete is needed, it is recommended that the joint is
made in accordance with the layout below (Fig. 1).
The reason for this recommendation is to prevent a
shock when the machine passes over the expansion
joint.
Fig. 1
5 5
50
50
100
50
The conventional joint below (Fig. 2) should not be used,
since when the machine passes such a joint the resulting
shock would be felt throughout the building.
Fig. 2
10
ref.:
rev. no.:
date:
page:
120

technical
sheet
110
100-
140
MC1211
270
2200
10
100
20 20
40
30
L 100x50x6
DIN 1029
HOLE TROU Ø 15
PLAT FLAT 40x10 PLATE 40x10
DIN 1017
500 1300 400
230
tracks
for building maintenance units
(BMU)
Fig. 3
Concrete track with
"L" shaped guide rail
for JUNIOR 213A machine.
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date:
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T-528
2
11/98
2/11
1.1. Concrete track - with "L" shaped guide rail
Angled metal guide rail fixed to the concrete.
Hot galvanised for protection.
The drawing below (Fig. 3) shows the track for a
JUNIOR 213A machine:
a) location and size of the trolley in relation to the track
b) location of the track in relation to the parapet.
concrete
safety guide
100x100
concrete track
weatherproofing
insulation

technical
sheet
2200
MC1211
270
230
1700
1530
568
330
268
930 1270
concrete safety guide
tracks
for building maintenance units
(BMU)
R 1000
268 979
1530
37°
568
330
Fig. 4
Example of layout
of a concrete track
with "L" shaped guide rail
for JUNIOR 213A machine *
R 1000
R 700
90°
979
268
250
1270 930
R 1000
37°
164°
R 3056
100
268
*please consult SECALT
for the other types of machine
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rev. no.:
date:
page:
250
T-528
2
11/98
3/11
2200
1700 230 270

technical
sheet
110
100-
140
MC1211
100
270
500 1300 400
230
tracks
for building maintenance units
(BMU)
2200
1.2. Concrete track - with concrete safety guide
Fig. 5
Concrete track with
concrete guide for
JUNIOR 213A machine.
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rev. no.:
date:
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T-528
2
11/98
4/11
concrete
safety guide
100x100
concrete track
weatherproofing
insulation

technical
sheet
2200
MC1211
270
230
1700
1530
568
330
268
930 1270
concrete safety guide
tracks
for building maintenance units
(BMU)
R 1000
268 979
1530
37°
568
330
Fig. 6
Exampl of layout
of a concrete track with
concrete guide
for JUNIOR 213A machine *
R 1000
R 700
90°
979
268
250
1270 930
R 1000
37°
164°
R 3056
100
268
*please consult SECALT
for the other types of machine
ref.:
rev. no.:
date:
page:
250
T-528
2
11/98
5/11
2200
1700 230 270

technical
sheet
Fig. 7
Points for changing direction
MC1211
Curved
rail section
for change of
direction
straight rail section to be removed
tracks
for building maintenance units
(BMU)
ref.:
rev. no.:
date:
page:
T-528
2
11/98
6/11
1.3. Points for changing direction or parking
In some cases the tracks on the roof must be fitted with
points for :
- the machine to change direction
(in certain special cases)
- parking the machine.
The points consist in replacing a straight rail with a
curved rail and vice versa so that the machine can
change direction.
The points are the same type as the guide rail on the
roof, either an angled "L" rail, or concrete guide type.

technical
sheet
2. Metal track
The rails are designed for fast and accurate assembly.
The rail sections are joined together using bolted or
welded fishplates. In open circuits, the last rail section
must be attached using bolted fishplates.
The rails and sleepers are hot galvanised to prevent
corrosion. The size of the rail depends on the weight of
the machine and the distance between the track support
plinths.
5 rail sizes are recommended (IPE160, IPE180, IPE200,
HEA180, HEB200).
The roller frames are defined by the type of BMU machine
(Fig. 10, 11, 12, 13 and 14).
MC1211
tracks
for building maintenance units
(BMU)
C
A B
6000
5998
Fig. 8
Rail joint using
2 bolted fishplates (A+B)
= 2 flat plates 190x25x10 (IPE160) or
230x30x10 (IPE180, IPE200,
HEA180, HEB200)
fishplate A
with 4 countersunk holes
fishplate B
with 4 threaded holes M12
2 1
Fig. 9
Rail joint using
2 welded fishplates (A + B)
= 2 flat plates 190x25x10 (IPE160) or
230x30x10 (IPE180, IPE200,
HEA180, HEB200)
Bolt C:
- For IPE and HEA
Bolt M12x25
DIN 7991 stainless steel
- For HEB
Bolt M12x30
DIN 7991 stainless steel
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T-528
2
11/98
7/11

technical
sheet
MC1211
Fig. 10
VENUS roller frame
1000 daN
on IPE 160 rail
Fig. 13
Roller frame 3800 daN
on HEA 180 rail
tracks
for building maintenance units
(BMU)
Fig. 11
Roller frame 2400 daN
on IPE 180 rail
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rev. no.:
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page:
Fig. 14
Roller frame 4900 daN
on HEB 200 rail
T-528
2
11/98
8/11
Fig. 12
Roller frame 2400 daN
on IPE 200 rail

technical
sheet
rail
sealing plate +
packing
cover
reinforced concrete
Fig. 15 - Concrete track support plinth
rail
sealing plate +
packing
cover
reinforced concrete
Fig. 16 - Concret plinth
rail
anchor flange
sealing plate
steel track
support plinth
MC1211
M16 bolt
separator
cover
reinforcing " I " type 125 Halfen M16
type 50/30 bolt
packing Halfen HTA 52/3 rail
Fig. 17 - Potelet acier
500
500
tracks
for building maintenance units
(BMU)
anchor flange
separator
chemical plug
type EPCON
STIT M16
anchor flange
separator
spacer
M16 threaded rod
The rails are supported on plinths every 2 or 3 m depending
on the loading on the wheels of the machine.
Three examples are given below:
2.1. Concrete track support plinths (Fig. 15 & 16)
A concrete track support plinth is made every 2 to 3 m
to support the rail. The sleeper has a zinc cover and a
seating plate which takes the adaptable rail fixing system.
2.2. Steel track support plinths (Fig. 17)
The steel track support plinth is a length of square hollow
section to which a seating plate is soldered at one end.
The adaptable rail fixing system is fitted to the seating
plate.
3000
Fig. 18 - Position of seating plates
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6000
T-528
2
11/98
9/11
2.3. Rail fixing system
The concrete or steel track support plinths are fitted with
an adaptable rail fixing system. This system has a
separator placed under the rail with 2 or 4 anchor
flanges.
The separator has been specially designed to allow for
flexing and expansion in the rail when it is fixed.
It has three functions:
- to spread the load on the seating plate
- to absorbe the uneven contact between the rail and
the seating plate
- to reduce the noise and vibrations.
The anchor flanges have been specially designed to
meet the requirements of our machines, and in particular
regarding the transverse adjustment and resistance to
the lateral pressure applied by the guide rollers.
The low height of the anchor flanges allows the travel of
the horizontal guide rollers. Between the anchor flanges
and the rail there is a block of synthetic elastomer. The
anchor flanges are fixed to the seating plate by M16
bolts, quality 8.8 and are galvanised for protection.

technical
sheet
7200 7200 7200
MC1211
butoir*
Fig. 19 - Example of layout of track on rails
5074
buffer*
tracks
for building maintenance units
(BMU)
5124
5998
1300 500
5998
2944
5998
ref.:
rev. no.:
date:
page:
R700
T-528
2
11/98
10/11
45°
R2000
*an end of track buffer
must be used for
"open" circuits
45°

technical
sheet
100
MC1211
450
190
530
Fig. 20
Power point on concrte track support plinth
gravel
100
weatherproofing
thermic insulation
stean shield
concrete
230
500
power point
Fig. 21
Power point on steel track support plinth
110
tracks
for building maintenance units
(BMU)
300x300
160
100
3. Power supply
There should be power points every 40 m along the
track (for JUNIOR and SENIOR machines) or every 30
m for MINI machines.
These power points may be fitted to the concrete (Fig.
20) or steel sleepers (Fig. 21).
chain link
71
tube 100x100x4
150 70 120
10 20
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rev. no.:
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page:
HILTI HST M12/20-115 plug plate 10...200x200
83
T-528
2
11/98
11/11
130
75
Ø14
100
150
200
100
790
150
200