Langmatz EK278 Guide

Installation and Assembly Instructions
for Antenna Manholes
EK278 | EK528 | EK548
Covers support loads up to 125 kN

Contents
English
1General information 3
2Safety information 3
3Product description 4
3.1 Dimensions 4
3.2 Technical data 5
4Scope of delivery 6
4.1 Required tools (not included) 6
5Foundation pit base 7
5.1 General 7
5.2 Preparing the foundation pit base 7
Diagrams of foundation pit base 8
6Antenna manhole installation 9
6.1 Preparing the drainage 9
6.2 Positioning the antenna manhole 9
6.3 Opening the antenna manhole cover 9
6.4 Removing the antenna manhole cover 10
6.5 Installing the antenna mounting brackets 10
6.6 Positioning the antenna manhole cover 10
6.7 Constructing the superstructure 11
6.8 Note on using ground anchors in concrete 11
7Maintenance 12
8Accessories 13
10 Material defects 14
11 Quality management 14
12 Disclaimer/Warranty 14
13 Contacts 14

3
1 General information
These instructions are included with delivery.
Caution!
Any person involved in the installation, operation and repair of the product
must first read, understand and follow these instructions. We accept no
liability for damage and operating malfunctions caused by failure to comply
with these instructions.
In the interest of further development, we reserve the right to change individual
assemblies and accessories as considered necessary for further safety and
performance improvements, while preserving the main features.
The copyright to these instructions remains with Langmatz GmbH.
2 Safety information
The product is designed for stationary use underground as an antenna manhole.
Where the product is used to accommodate electronic components, it is not suitable for
use in explosive atmospheres.
The product corresponds to the latest state-of-the-art technology at the time of printing
and is delivered in an operationally safe condition. Unauthorised modifications,
particularly to safety-related parts, are prohibited.
Langmatz GmbH warns against misuse of the product.
Work on electrical or electronic fixtures may only be performed by qualified
electricians/optical fibre specialists.
The operating company is responsible for installing, operating and maintaining the
fixtures.
The operating company is responsible for the following:
- Preventing danger to life and limb of users and third parties.
- Ensuring operational safety.
- Preventing downtime and environmental impact caused by incorrect
handling.
- Ensuring that protective clothing is worn when working with or on the
product.
Do not use the product if it is damaged. Please contact the
hotline (see section 13 Contacts).
Caution!
Applicable occupational safety and environmental protection regulations
must be complied with during installation, operation, maintenance, or
repair.

4
3 Product description
These instructions are based on one Langmatz product by way of example:
- Antenna Manhole EK278;
- Clear dimension (CD) 250 x 550 mm, height 170 mm;
3.1 Dimensions
Fig. 1
Fig. 2
Fig. 3
EK278
CD 250x550
EK528
CD 250x400
EK548
CD 250 x 800
A
693 mm
538 mm
936 mm
B
393 mm
353 mm
413 mm
C
170 mm
170 mm
170 mm
(special size 312 mm)
D
550 mm
400 mm
800 mm
E
250 mm
250 mm
250 mm
C
A
B
D
E
with ground anchors
approx. 110
mm
approx. 110
mm

5
3.2 Technical data
EK278
CD 250x550
EK528
CD 250x400
EK548
CD 250x800
Total weight:
Approx. 27 kg
Approx.
24.2 kg
Approx.
43.5 kg
Material:
- Frame components:
- Base plate:
- ecopolytec (WPC)
- PC - optical fibre
Steel frame material:
Hot-dip galvanised steel
Antenna manhole cover:
Epoxy resin with non-slip coating, maximum load
125 kN
Antenna manhole closing plate:
Screw connection (hexagon socket)

6
4 Scope of delivery
4.1 Required tools (not included)
Item 1
1x antenna manhole cover
(epoxy resin)
with non-slip coating
Item 2
Mounting kit:
4x M10x50 socket head cap screws;
4x pairs lock washers;
4x cone bushings.
Item 3
1x M10 hexagon socket grub screw,
(for ease of opening cover -
see section 6.3).
Item 4
1x steel frame with nut mount and
damping pad
(elastomer).
Item 5
1x ecopolytec frame (WPC)
CD 250 mm x 550 mm,
70 mm high
Item 6
1x base plate.
Item 7
Height adjustment spacers (in
accessories kit; use if needed).
Item 8
2x mounting brackets for antenna (in
accessories kit).
Special version differs!
Item 9
4x mounting plugs.
Fig. 4
1 SW8 Allen key
2 SW5 Allen key
Fig. 5
(Product example CD 250 x 550 mm)
2
1
1
2
4
5
7
6
8
3
9

7
5 Foundation pit base
5.1 General
•The antenna manhole must be installed by a specialist company.
•Assess the ground conditions before preparing a load-bearing foundation pit
base.
- For antenna manholes with an overall height less than 680 mm, the highest
groundwater level must be at least 1,200 mm below ground level.
- The antenna manhole must be installed in “non-cohesive” to “cohesive”
mixed soils.
- Group G1 to G3 soil types as per ATV-DVWK-A (German Association for
Water, Wastewater and Waste) 127, and/or soil groups GE, GW, GI, SE,
SW, SI, GU, GT, SU, ST, GU*, GT*, SU*, ST*, UL and UM as per
DIN 18196.
Caution! Comply with ZTV A-StB 12 (Supplementary Technical Contract
Conditions and Guidelines for the Construction of Asphalt Roads) for the
construction of the road surface!
5.2 Preparing the foundation pit base
When preparing the foundation pit, comply with the following documentation from the
Gütegemeinschaft Leitungstiefbau e.V. (Underground Cable Line Construction Quality
Association): "Procedural instructions for performing tasks in underground cable line
construction".
The position and depth of the foundation pit base or the concrete pit in the tram track
must be matched to the installation position.
The upper edge of the antenna manhole cover must lie completely flush with the
surrounding ground level, and must not project.
The cable entry or drainage conduit (e.g. DN100) must be laid such that it can be fed
vertically below the centre of the manhole after preparing the foundation pit base.

8
Diagrams of foundation pit base
Situation A
For pedestrian areas:
•Use an underfill/bottom layer at least
300 mm thick.
•The underfill/bottom layer must consist
of “non-cohesive” to “cohesive” mixed
soil (group G1 soil types as per ATV-
DVWK-A127).
•The underfill/bottom layer must be lay-
ered and compacted to DPr ≥ 98%.
Fig. 6
Situation B
For vehicle traffic areas:
•Compact the pit base according to the
requirements.
•With group G1/G2 soil types as per
ATV-DVWK-A 127 (soil groups GE,
GW, GI, SE, SW, SI, GU, GT, SU, ST
as per DIN 18196):
•Lay a concrete load-bearing layer at
least 100 mm thick (tamped concrete,
strength class ≥ C8/10).
Fig. 7
Fig. 8
Situation C
For vehicle traffic areas:
•With group G3 soil types as per ATV-
DVWK-A 127 (soil groups GU*, GT*,
SU*, ST*, UL, UM as per DIN 18196):
•With group G1 soil types, use an
underfill as per ATV-DVWK-A 127.
Minimum thickness 200 mm. The
underfill must be layered and
compacted to Dpr ≥ 98%.
•Lay a concrete load-bearing layer at
least 100 mm thick (tamped concrete,
strength class ≥ C8/10).

9
6 Antenna manhole installation
6.1 Preparing the drainage
•Note:
Before positioning the antenna manhole,
knock out the predetermined breaking
point (1) (Ø50 mm or Ø100 mm) on the
base plate.
Fig. 9
6.2 Positioning the antenna manhole
•Position the whole antenna manhole (1) in
the foundation pit.
Warning:
Risk of crushing injuries when
positioning the antenna manhole.
Crushing of body parts.
Fig. 10
6.3 Opening the antenna manhole cover
•Unscrew and remove the 4x socket head
cap screws (1) using an SW8 Allen key.
Fig. 11
1
1
1

10
6.4 Removing the antenna manhole cover
•Screw in the M10 hexagon socket
grub screw (1) using an SW5 Allen
key.
•The antenna manhole cover (2) will lift
and can be removed with the aid of a
suitable tool.
Fig. 12
6.5 Installing the antenna mounting brackets
•Position the antenna mounting
brackets (2) (accessories kit) correctly
in the manhole (Do not screw them
on).
•If necessary, position spacers (1)
(accessories kit) on the mounting
brackets so that the antenna is as
close as possible to the cover.
Clearance between bottom of cover
and top of antenna
= approx. 5 mm.
Fig. 13
6.6 Positioning the antenna manhole cover
Fig. 14
•Place the antenna manhole cover (1)
on the steel frame.
•Apply anti-seize paste to the 4x M10
socket head cap screws (2) and tighten
them.
Torque = 32 Nm.
(Anti-seize paste included in
accessories kit).
Note:
The exterior of the steel frame has a
silver aluminium strip on each of the 4x
nut mounts and end caps (3).
This prevents concrete from penetrating
the antenna manhole.
1
2
1
2
1
2
3

11
6.7 Constructing the superstructure
•Note: Inspect the aluminium strip
(see 6.6) for damage and, if
necessary, replace it before
constructing the superstructure.
•Construct the superstructure (1) as
per
ZTV A-StB 12 (and/or RStO 2001).
Fig. 15
6.8 Note on using ground anchors in concrete
•The ground anchors (1) mounted on
the steel frame anchor the antenna
manhole securely in the concrete.
Note:
Anchoring the ground anchors in the
asphalt may reduce stability,
depending on the quality of the
asphalt.
Langmatz therefore recommends
anchoring the ground anchors in
concrete.
Fig. 16
1
1

12
7 Maintenance
Procedures
Intervals
Remarks
Before opening, check and
clean the manhole surface
and screw connections.
Before each use.
Tighten/loosen the screw
connections using only the
Allen key supplied for the
purpose.
Check the cover damping
pad.
Once per year.
Replace if damaged.
Clean the cover damping
pad.
After each use.
Sweeping it off with a
broom is sufficient.
Check the fit of the lock
washers.
After each use.
Treat screw connections in
the cover with anti-seize
paste before screwing in.
Recommended tightening
torque = 32 Nm.
After each use.
Screw in screw
connections by hand only!
Anti-seize paste is
available from Langmatz.
(For info, see section 13
Contacts).
Check the cover and the
non-slip coating.
After every use.
Replace if damaged.

13
8 Accessories
Product
Packaging
unit
Langmatz
Article no.
Figure
Mounting kit for manhole cover
14x M10x50 socket head cap
screws
24x pairs lock washers
34x cone bushings
44x M10 nuts
54x lock washers with
round-wire snap ring
64x mountings for M10 nuts
1 set
062780201
E
1
2
3
4
5
6

14
10 Material defects
Langmatz accepts liability for material defects in the product as per Section 434 BGB
(German Civil Code) for 24 months, starting from the date on the purchase receipt.
Within the scope of liability, all parts that become damaged due to manufacturing faults
or material defects will be replaced or repaired free of charge.
The purchaser must report any deficiency complaints immediately in writing.
Claims by the purchaser for damages due to material defects or for whatever legal
reason will not be accepted.
Any damage or failure caused by the following are also excluded from liability
- Incorrect use,
- Natural wear and tear
- Intervention by third parties.
We accept no liability for damage caused by force majeure or transport.
Repairs due to a deficiency complaint do not extend the warranty period for the
replaced parts or the product.
This product conforms to the latest state-of-the-art technology. Nevertheless, if you
experience any problems with it, please contact our hotline (see section 13 Contacts).
11 Quality management
The Langmatz GmbH quality management system is certified to DIN EN ISO 9001.
12 Disclaimer/Warranty
The information in this technical document is presented appropriately and correctly in
compliance with the technical regulations, and to the best of our knowledge. However,
this does not confer any guarantee of particular characteristics. In this context, the
company that operates the products supplied by Langmatz GmbH is expressly obliged
to decide, based on its own judgement, whether the products are suitable and
appropriate for the application or use being considered. The product liability accepted
by Langmatz GmbH relates exclusively to our conditions of sale, delivery, and
payment. Langmatz GmbH accepts no liability on the basis of random, indirect and
resultant consequential damage, or of any damage attributable to any use of the
product other than its intended purpose as described.
13 Contacts
Langmatz GmbH | Am Gschwend 10
82467 Garmisch-Partenkirchen, Germany
Our hotline: [phone]
Phone: [phone]
E-mail: [email protected] | www.langmatz.de

15
70 062 1120 / 001 │ As of 26.07.2022 │ Translation of the Original Installation Instructions