VERDEGRO LTMA User manual

Manual LTMA Page 1 of 15
Operation and Maintenance Manual
VERDEGRO LTMA
READ BEFORE USE!
ONLY AUTHORIZED PERSONS MAY WOR WITH THE MACHINE
IMPROPER USE CAN CAUSE SERIOUS INJURIES!
All maintenance and repair should be done by the manufacturer or under
their supervision by an official distributor.

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Index
1 Data producer and specific machine: ............................................................................................. 3
2 Introduction: ................................................................................................................................... 4
3 Recognition and dimensions .......................................................................................................... 5
3.1 Photos of a typical LTMA ......................................................................................................... 5
4 Hydraulic schedule.......................................................................................................................... 6
5 General specifications and instructions ......................................................................................... 7
5.1 Description of system .............................................................................................................. 7
6 Safety .............................................................................................................................................. 8
7 Operation ........................................................................................................................................ 9
8 Inspection table ............................................................................................................................ 10
8.1 Control position Crash Cushion ............................................................................................. 10
8.2 Use of the machine in cold .................................................................................................... 10
8.3 High voltage ........................................................................................................................... 11
9 Maintenance ................................................................................................................................. 11
9.1 Check hydraulic oil................................................................................................................. 11
9.2 Torque index Tension ............................................................................................................ 12
10 General control points of LTMA ................................................................................................... 12
11 Repairs (by manufacturer or official distributor) ......................................................................... 13
11.1 Welding ................................................................................................................................. 13
11.2 Other welding ........................................................................................................................ 13
12 Warranty ....................................................................................................................................... 13
13 Maintenance history ..................................................................................................................... 16

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1Data producer and specific machine:
Verdegro Group
Munnikenheiweg 59
4 79 NE Etten-Leur
The Netherlands
(T) [phone]
(F) [phone]
(W) www.verdegro.com
(E) [email protected]
Date release : _____________________
Machine number : _____________________
Cushion number : _____________________
Company stamp:
Note: This document is only valid with an original company stamp of the producer.

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2Introduction:
A Light Truck Mounted Attenuator (LTMA 70 ) is an energy absorbing device attached to the rear of
a light truck (3500kg) or utility vehicle. A LTMA 70 is designed to provide a controlled stop of a
vehicle impacting the rear of the truck. LTMA have been used since the mid- 1970's to reduce the
severity of impacts between errant motorists and slow moving or stopped shadow vehicles used to
protect highway maintenance workers.
The National Cooperative Highway Research Program Report 350 (NCHRP 350) specifically addresses
the performance requirements of LTMA. The recommended tests to evaluate LTMA crash
performance are defined for two different Test Levels. The basic Test Level, TL-2, is conducted at a
nominal impact speed of 70 kph. TL-3 is the higher test level and is conducted at 100 kph.
This report presents the manual for the Verdegro LTMA.
The Verdegro LTMA 70 , in this manual called LTMA. The LTMA is fully hydraulic operated and must
be placed behind a supporting truck with a minimum weight of 3.500 g and a maximum weight of
12.000kg for best performance results. The crash cushion mounted on this LTMA is 70 , which
means test with the LTMA were done according TL-2 of the Report NCHRP-350.
The LTMA is amply equipped with features that promote safety. By inspect them, the quality,
efficiency and safety of the LTMA improved.
Check the condition of the LTMA daily before starting work on the base of the instructions. It is
strictly forbidden to use the LTMA when it is damaged, not maintained or inspected.
The Manufacturer reserves the right to the machine construction, parts and maintenance
instructions without notice.
This manual is only for the Verdegro LTMA. Some drawings or colors in this manual can be
slightly different from the delivered model which should be recognized as a typical Verdegro
LTMA.
Attention! Before maintenance or checks, disconnected the power!

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Recognition and dimensions
3.1 Photos of a typical LTMA

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4Hydraulic schedule

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5General specifications and instructions
A. Always make sure the system is delivered with the right certificates, stickers and
documentation!. Do not remove the sticker(s)!!
B. Never remove safety instructions of the LTMA!
C. All Verdegro Truck Mounted Attenuators (Verdegro LTMA) shall be designed and
manufactured by the Verdegro Group, in accordance with the specifications.
D. The Verdegro LTMA is an attenuator system designed for installation at the back of trucks
with gross vehicle weight (GVW) ranges between 3500 kg and 12 000 kg (Contact your
country for other specifications!).
Note: Any added ballast must be adequately anchored to the truck so that it will not move
during impacts. Because the back end of the truck supports the weight of the rearward
protruding LTMA, care must be taken not to exceed the manufacturer's published maximum
axle loads. To ensure that the driving characteristics of the vehicle are maintained, the
manufacturer's recommended center-of-gravity zone should also be adhered to.
5.1 Description of system
A. The Verdegro LTMA shall consist of the following basic components: An aluminum foldex box
with 2 aluminum Cartridges, a steel Support Structure and a Support Frame with 2 mounting
options for attaching the system to the truck.
A hydraulic system shall also be included in the system to raise the structure and cartridges
to a vertical position. When the system is in a horizontal position, the frame assembly shall
be capable of collapsing when impacted by an errant vehicle. No portion of the system shall
protrude forward under the truck during an impact. The complete Verdegro LTMA is
designed to make attachment or detachment from the truck simple and fast.
B. The Verdegro LTMA shall have a standard trailer lighting system. This system shall include
brake lights, taillights and turn signals. The wiring for the rear lights shall be routed and
secured on the articulating frame. This system also has additional lights on the cartridge so
that the lighting system meets the standards, whether the system is in its horizontal or
vertical orientation.
C. Under the support frame are two tubes to lift the complete system with a forklift, for
example to mount on the truck.
D. All welding is done by, or under the direction of, a certified welder. Metal work shall be made
at the Verdegro Group.
E. All exposed steel surfaces on the LTMA shall be primed and painted and or galvanized.
F. The LTMA shall be assembled with Commercial Quality bolts, nuts, and washers conforming
to European Standards.
G. The hydraulic system shall consist of a pump with a 12 or 24 (standard) volt DC motor,
cylinders, hoses, switches, wiring, and necessary subcomponents to tilt the frame assembly
to a 90° position from horizontal. The complete hydraulic system, including the pump and
hoses, shall be factory assembled and mounted to the LTMA by the Verdegro Group.

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6Safety
1. Read these instructions carefully before using the “LTMA”
2. The LTMA should not be used without knowledge of the operating instructions and safety
precautions. eep the operating instructions, always within easy reach of the machine, the
operator's manual should ALWAYS be at or near the machine.
3. The operator of the LTMA must be at least 18 years old and experienced in serving Truck
Mounted Attenuators.
4. The owner/holder of the LTMA must ensure that all users are trained in the use of the
machine.
5. Be careful when the machine is used near live power lines.
6. Transport the LTMA only if it is properly secured to vehicle.
7. On the platform are no persons during storage and adjustment of the machine or in transit.
8. Make use at all times during the adverse influences of wind, rain, temperature, brine,
thunderstorms, snow, hail and ice.
9. Use the LTMA purely as Truck Mounted Attenuator, and not as a lifting mechanism or other
device.
10. The wind load of the LTMA does not increase with additional signs or other objects that
could catch wind.
11. Set the whole machine back together in a smooth continuous motion so as to avoid shock
effects of road users.
12. Inspect the entire machine for loose materials such as bird nests, twigs, leaves, but also
tools, bolts, nuts, etc. which may end up on the lanes during mobilization or transport.
13. Do not hoist the LTMA!
14. The safety devices are not deactivated. Defective safety devices or by a qualified repair
service company to recover before the LTMA is used again.
15. Before and during operation of the machine always look at / near the machine, no persons
are present, guiding also takes into account the rotation range of the machine!
16. For safe and trouble-free operation, the LTMA clean snow and ice held.
17. Be careful with fuels, lubricants, hydraulic oils and greases of the LTMA. Avoid skin contact
with these substances. Exposure Danger !
18. The LTMA regular inspection and maintenance of service - repair outsourcing to an expert in
this field service company.
19. The construction of the LTMA may not be altered without permission and the manufacturer's
instructions.

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20. Inspect the LTMA every day before work or during use and pass through the machine.
21. Axles control all bolts / nuts: Before each use the principal axes, bolts and nuts.
22. Let the LTMA annual inspect by the manufacturer. The inspection must take place more
frequently if welding is done in supporting parts, or other special reasons exist for the device
to be debating. For modification and repair, always contact the manufacturer!. After repair
or replacement of parts, the LTMA should always be served a full test facility. The Verdegro
Group can only guarantee the working when repair and service is done by the Verdegro
Group or under their supervision by an official distributor.
23. If you leave the LTMA, put it somewhere where it does not preclude others. eep the whole
machine in transport position. Close all hatches well for unauthorized persons. Take your
keys with you.
24. The operator of the machine may not be under the influence of alcohol or narcotic drugs.
7Operation
The operation of the machine depends on the chosen type. It can be wireless, with buttons on the
LTMA or buttons in the truck. Ask the manufacturer or distributor for the optional equipment
guidance on your LTMA.
Standard :
To rotate the cushion you use the black and white buttons on the remote.

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8Inspection table
General inspection points (It
they are in bad
condition, use of the LTMA is forbidden)
Every
application
Weekly
Monthly
Level
hydraulic oil
X
Condition hydraulic cylinders
X
Leakage hydraulic
X
Condition of the hydraulic hoses
X
Visual inspection of shafts,bolts and structural
bearings
X
Operation
-
end position defectors
X
Inspection LED display control (errors) / arrow
configuration(s)
X
Visual inspection
loose machine parts
X
Cracks
X
Damage on the cushion
X
.1 Control position Crash Cushion
Verify proper operation / adjustment of the cushion on a right road surface where no height
difference is present. After unfolding the cushion, the machine / pillow should be horizontal.
f the machine is not leveled horizontal, directly contact the manufacturer; use
prohibited!
.2 Use of the machine in cold
•Take into account delays in cold (-5° or colder)
•Ensure that there is no snow, ice or dirt on the frame and cushion.
•Protect the machine from the snow and ice when not in use.

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.3 High voltage
Not use this machine within:
•50 Meters at power Lines on steel towers
•25 Meters at low voltage lines on wooden poles
•5 Meters in contact Lines of railway and tramway etc.
9Maintenance
Scheduled maintenance keeps the LTMA in safe and reliable condition. From the maintenance
schedule and checklist for the annual inspection shows what measures are required. Read for the
maintenance of the LTMA the entire manual carefully!. If in doubt about the maintenance work it is
better that it is carried out by the manufacturer. If not, than it must be done under supervision of the
manufacturer, for example by an official distributor. Distributors can be found on the website
www.verdegro.com
9.1 Check hydraulic oil
The LTMA has an oil level in the tank.
•Open the hydraulic compartment
•Make sure the cylinders are retracted
•Before opening the cap or around the filling is clean, clean it if necessary.
•Add the oil with a special pump with filter. The use of the oil directly from the can to pour.
Term
Actions
Daily or before
any start up
Check level Hydraulic oil
Check bearings
parts
Check hydraulic hoses and cylinders, pipes and fitting
Check operation of emergency and safety devices
Piston rods outrigger daily check for debris, leaks or damage. If
severely polluted or clean brine is presents.
Try all in normal position
Each 500 h
Lubricate all bearings and sliding surfaces
Turntable bolts tightened
Check condition of cylinders and outrigger
Each 1000 h
of
latest
6 months
C
heck of total
L
TMA
Every 12 months
Annual inspection. + Full service preventive replacement
valves and
seals.
Cushion
Check daily for damages

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9.2 Torque index Tension
Dimensions
thread
Of torque for bolt with thread in hermetically
ISO Nm
Hex bolt
Class 8.8
Hex bolt
Class 10.9
Hex bolt
Class 12.9
M4
2,8
4,0
4,9
M5
5,7
7,9
9,5
M6
9,7
13,7
16,2
M8
23,5
33,3
39,2
M10
47,1
65,7
79,4
M12
81,4
114,7
137
M14
130
181
216
M16
196
280
333
M18
270
382
461
M20
382
539
647
M22
519
730
873
M24
662
932
1118
M30
1324
1863
2236
10 General control points of LTMA
•Chassis:
oCorrosion
oWelds (no cracks visible)
oPermanent deformation
•Turn table:
oBolts / nuts wreath
oWelds
oSufficient fat is present in wreath
oCorrosion
•Turn section:
oAssessment of hinge shafts and cylinders
oWelds / corrosion
oCracks and other damage
oCable and pipe installation
oCylinders
•Hydraulic system:
oCondition hoses (replaced by the least damage or leaks)
oPiston rods for damage
oControl for leaks or damage
oBolt connection outriggers control
•Elektrical system:
oCondition and suspension of cables
oCondition of connectors
oOperation of end position detectors

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•Crash Cushion:
oControl of cracks and dents or cracks
•Emergency stop:
oThe control for the emergency stop should be red, along with a plate with the
inscription "STOP”
oThe emergency must immediately stop the movement, the machine may not start
immediately when the emergency stop is released or put back, but keep in mind the
time required for a fully running engine to stop.
oThe emergency must be clearly distinguishable from other button.
oThe emergency must not be used to machine just freeze it only with the power
button.
oThe emergency stop is not out of service / bridged
•Test running
oSet up the entire machine as defined
oTry all labor movements, which may not be expired as shocking
oAfter the test it must be properly monitored or stressed parts do not exhibit cracks
or permanent deformation.
11 Repairs (by manufacturer or official distributor)
11.1 Welding
If parts of the LTMA are repaired with welding, it should be noted in the report under "Remarks’’
•Welded points
•Date of welding
•Make sure when welding the manufacturer's instructions are followed
11.2 Other welding
If other repairs are made to supporting parts (example cylinders), make a note under "Remarks’’
•Maintenance points
•Date
•Contractor
•Ensure that the repair to the manufacturer’s instructions are followed
12 Warranty
Verdegro strives by various internal and external inspections and final inspections that the delivered
LTMA system is free from error into operation. We provide the following warranty for any defects in
materials or workmanship.
The guarantee is effective up to 12 months from the date of delivery of the machine to the buyer.
The guarantee applies only to a new LTMA sold in possession of the first owner, and officially
delivered by Verdegro or an official distributor.
Verdegro is based on an obligation to guarantee the absence of LTMA occurred in accordance with
this warranty for free repair. The warranty repair is performed only during normal working hours by a
technician authorized by Verdegro BV.
Verdegro decides whether parts and labor are under warranty or not.

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The warranty does not cover defects caused by neglect of the use - and safety instructions in the
operations manual, or mainly due to improper or inadequate use, installation or maintenance
unauthorized persons, or resulting from normal wear or deterioration quality or caused by an
accident.
Verdegro does not reimburse any damage to property or persons / companies due to a defective
LTMA, neither revenue, driving costs to the repair company etc.
The guarantee will terminate immediately in full if the LTMA is repaired or serviced by another
company / person than the Verdegro Group or an official distributor, when strange or
inappropriate components are mounted on the LTMA, or when the settings of the LTMA are
changed by unauthorized persons.

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CE Verklaring van conformiteit
CE Declaration of conformity
CE Konformitätserklärung
Déclaration CE de conformité
L
L
T
T
M
M
A
A
1 CE certification
NL
Is geproduceerd conform de normen en normatieve documenten overeenkomstig de bepalingen van de EG-
richtlijnen 2006/42/EG.
GB
Is manufactured in conformity with the EG 2006/42/EG.
Other applied standards
Machinerichtlijnen / CE- markering 2006/42/EG CROW 96a/96b
ARAB/CODEX/AREI Arbo-wet
The Verdegro Group
verklaart hiermee, dat het produkt
hereby declare, that the product
erklären hiermit, daß das Produkt
déclare par la présente, que l’outil

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14 Maintenance history
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