VERDEGRO LTMA Operation And Maintenance Manual

Operation and Maintenance Manual

VERDEGRO LTMA

ONLY AUTHORIZED PERSONS MAY WORK WITH THE MACHINE

All maintenance and repair should be done by the manufacturer or under

READ BEFORE USE!

IMPROPER USE CAN CAUSE SERIOUS INJURIES!

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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1 Data producer and specific machine:

Verdegro Group
Munnikenheiweg 59
4879 NE Etten-Leur
The Netherlands
(T) [phone]
(F) [phone]
(W) www.verdegro.com
(E) [e-mail]

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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2 Introduction:

A Light Truck Mounted Attenuator (LTMA 70K) is an energy absorbing device attached to the rear of
a light truck (3500kg) or utility vehicle. A LTMA 70K 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 70K, 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 Kg and a maximum weight of

12.000kg for best performance results. The crash cushion mounted on this LTMA is 70K, 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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3 Recognition and dimensions

3.1 Photos of a typical LTMA

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