Geobrugg Rocco series User manual

GBE-100A

GBE-100A-R

GBE-500A

GBE-500A-R

GBE-1000A

GBE-1000A-R

GBE-2000A

GBE-3000A

RXE-500

RXE-500-LA

RXE-1000

RXE-2000

RXE-3000

RXE-5000

RXE-8000

RXE-10000

ROCCO-1000

ROCCO-2000

ROCCO-3000

ATT-20

ATT-40

ATT-60

ATT-80

Date: 12.01.2023

Issue: 13

8590 Romanshorn

Maintenance Manual

GBE-, RXE-, ROCCO

and ATT-series

Page 2/33

PURPOSE AND ORGANIZATION OF THE MAINTENANCE MANUAL

This maintenance manual is intended for the proper maintenance and repair of a rockfall protection system, in order

to ensure a long lifespan for the barrier, and its unrestricted and safe functioning following impacts and throughout

its lifespan. The maintenance manual is to be understood as a recommendation. Only standard situations are de-

scribed. In the event of unusual situations, this manual may under certain circumstances be inappropriate or inad-

equate for servicing or repairing the barrier. In certain cases, it is recommended that technical advice is obtained

from the manufacturer.

This maintenance manual consists of the following sections:

•Lifespan

•Inspections

•Criteria for repairs and replacement

•Emptying and clearing of barriers

•Repairing and replacing components

•Inspection checklist

•ISO 9001 certificates

No claims are made that this document is complete. It is designed for general standard applications and does not

take into account project-specific parameters. Geobrugg cannot be held liable for any extra costs that may be

incurred for special cases. In the event of uncertainty, please contact the manufacturer. The General Terms of

Business of Geobrugg AG apply.

RESPONSIBLE FOR THE CONTENT:

Geobrugg AG

Geohazard Solutions

Aachstrasse 11

CH-8590 Romanshorn, Switzerland

[email protected]

www.geobrugg.com

Romanshorn, 12.01.2023

(Stamp / legally valid signatures)

Page 3/33

I AREA OF APPLICATION

This maintenance manual applies for the Geobrugg rockfall barrier systems of the GBE, RXE, ROCCO and ATT

series. Reference is made to the corresponding system drawings:

GBE-100A (100 kJ) System drawing GS-1218

GBE-100A-R (100 kJ) System drawing GS-1131

GBE-500A (500 kJ) System drawing GS-1100

GBE-500A-R (500 kJ) System drawing GS-1122

GBE-1000A (1000 kJ) System drawing GS-1104

GBE-1000A-R (1000 kJ) System drawing GS-1128

GBE-2000A (2000 kJ) System drawing GS-1109

GBE-3000A (3000 kJ) System drawing GS-1113

RXE-500 (500 kJ) System drawing GS-1196

RXE-500-LA (500 kJ) System drawing GS-1216

RXE-1000 (1000 kJ) System drawing GS-1142

RXE-2000 (2000 kJ) System drawing GS-1150

RXE-3000 (3000 kJ) System drawing GS-1157

RXE-5000 (5000 kJ) System drawing GS-1125

RXE-8000 (8000 kJ) System drawing GS-1138

RXE-10000 (10000 kJ) System drawing GS-1552

ROCCO-1000 (1000 kJ) System drawing GS-1225

ROCCO-2000 (2000 kJ) System drawing GS-1222

ROCCO-3000 (3000 kJ) System drawing GS-1228

ATT-20 System drawing GS-1556

ATT-40 System drawing GS-1567

ATT-60 System drawing GS-1568

ATT-80 System drawing GS-1569

II QUALITY OF THE SYSTEM COMPONENTS

Geobrugg AG, Romanshorn, has been certified according to the quality management system requirements (ISO

9001:2015) under registration number CH-S34372 since August 22, 1995. The certifying body is the Swiss Asso-

ciation for Quality and Management Systems (SQS), a member of IQNet. The quality manual describes in full how

the individual system parts (input material, commercial products and end products) are comprehensively checked

in order to exclude inadequate quality.

Page 4/33

III FUNCTIONAL EFFICIENCY OF THE BARRIER SYSTEMS

The system functionality is based on rockfall tests that replicate real-life conditions, performed in Walenstadt (SG),

Switzerland, in accordance with the European Guideline EAD-340059-00-0106-2018 “Falling Rock Protection Kits”

and the Swiss Guidance for Practice "Basics for the Quality Assessment of Rockfall Protection Nets and their

Foundation". In the rockfall tests under real-life conditions, the rocks are thrown vertically into the central field of a

three-field barrier with a 10 m distance between the posts of each field. An impact speed of at least 25 m/s is

achieved. These investigations are inspected by notified testing centres and obtain European approval, known as

ETA (European Technical Assessment), as well as partly a Swiss inspection certificate from the Federal Office for

the Environment (FOEN).

IV QUALITY CONTROL FOR MAINTENANCE

An inspection of damage should be made using the checklist in the maintenance manual. The maintenance manual

describes in detail the individual steps for how the barriers must be maintained by local contractors. The recording

of damage is, however, always subject to subjective criteria. In the event that doubts should arise for this reason,

the manufacturer should be contacted in order to ensure the continued quality and functional efficiency of the barrier.

V PRODUCT LIABILITY

Rockfall, landslides, debris flows or avalanches are sporadic and unpredictable. The cause may be human (build-

ings etc.), for example, or forces beyond human control (weather, earthquakes, etc.). The multiplicity of factors that

may trigger such events means that guaranteeing the safety of persons and property is not an exact science.

However, the risks of injury and loss of property can be substantially reduced by appropriate calculations that apply

good engineering practices, and by using predictable parameters along with the corresponding implementation of

flawless protective measures in identified risk areas.

The monitoring and maintenance of such systems is an absolute requirement to ensure the desired safety level.

System safety can also be compromised through events, natural disasters, inadequate dimensioning or failure to

use standard components, systems and original parts, but also through corrosion (caused by environmental pollu-

tion or other man-made factors as well as other external influences).

In contrast to the 1:1 rockfall tests, which indeed test an extreme load case but still only demonstrate a standardized

situation, in the field the layout and design of a protection system can vary greatly because of the topography. The

influence of such alterations and adaptations cannot always be determined exactly. Critical points are, for example,

post spacing, changes in direction, placement angle of the rope anchors, and the direction and velocity of impact.

Geobrugg can assist with estimating the influence of larger deviations and special situations and can offer recom-

mendations for feasible solutions. Geobrugg cannot, however, guarantee the same behaviour as in the 1:1 rockfall

tests. In critical cases, it is advisable to reinforce particular components as compared with the standard barrier.

 Page 5/33 
© Geobrugg Gruppe, CH-8590 Romanshorn, Switzerland Maintenance manual GBE, RXE, ROCCO and ATT / 13 
CONTENTS 
1HAZARD NOTES ................................................................................................................ 7 
2LIFESPAN .......................................................................................................................... 8 
1 Lifespan of the components in general.......................................................................................................8 
1.1 Individual parts.................................................................................................................................................8 
1.2 Assemblies.......................................................................................................................................................8 
1.3 Safety factors...................................................................................................................................................8 
3INSPECTIONS ................................................................................................................... 9 
1 Regular inspections.......................................................................................................................................9 
1.1 Interval for regular inspections.........................................................................................................................9 
1.2 Minimum number of inspections......................................................................................................................9 
2 Inspection following incidents .....................................................................................................................9 
3 Accessibility...................................................................................................................................................9 
4CRITERIA FOR REPAIR AND REPLACEMENT ................................................................. 10 
1 Debris in the barrier.....................................................................................................................................10 
2 Remaining usable height following an incident .......................................................................................10 
3 U-brake..........................................................................................................................................................10 
4 Meshes and nets..........................................................................................................................................10 
4.1 TECCO...........................................................................................................................................................10 
4.2 SPIDER..........................................................................................................................................................10 
4.3 ROCCO..........................................................................................................................................................11 
4.4 Wire mesh......................................................................................................................................................11 
5 Ropes as per the rope assembling drawings ...........................................................................................11 
5.1 Corrosion........................................................................................................................................................11 
5.2 Mechanical damage.......................................................................................................................................11 
6 Posts .............................................................................................................................................................11 
7 Hinge bolt between post and base plate ...................................................................................................11 
8 Base plate.....................................................................................................................................................11 
9 Rod anchor of the base plate or post foot ................................................................................................11 
10 Spiral rope anchor .......................................................................................................................................11 
5CLEARING THE BARRIER ............................................................................................... 12 
1 Breaking stones down.................................................................................................................................12 
6TOOLS FOR SERVICING ROCKFALL BARRIERS ............................................................. 14 
7USE OF WIRE ROPE CLIPS.............................................................................................. 15 

 Page 6/33 
© Geobrugg Gruppe, CH-8590 Romanshorn, Switzerland Maintenance manual GBE, RXE, ROCCO and ATT / 13 
1 Type EN 13411-5 type 1 (old type)..............................................................................................................15 
2 Type FF-C-450 type 1 class 1 (new type)...................................................................................................16 
8REPAIRING AND REPLACING COMPONENTS................................................................. 19 
1 Geometrical arrangement of the components..........................................................................................19 
2 Tightening sagging ropes...........................................................................................................................19 
3 Replacing ropes...........................................................................................................................................20 
4 Replacing U-brakes .....................................................................................................................................21 
5 Repairing nets and meshes........................................................................................................................22 
5.1 TECCO: repairing smaller mesh areas..........................................................................................................22 
5.2 SPIDER: repairing smaller net areas.............................................................................................................22 
5.3 ROCCO: repairing smaller net areas.............................................................................................................22 
5.4 Secundary mesh: repairing smaller mesh areas ...........................................................................................22 
6 Replacing nets and meshes........................................................................................................................23 
6.1 TECCO: replacing a mesh field .....................................................................................................................23 
6.2 SPIDER : replacing a net field .......................................................................................................................24 
6.3 ROCCO: replacing individual rings................................................................................................................27 
6.4 ROCCO: replacing a net field ........................................................................................................................28 
6.5 Wire mesh: replacing a length of mesh .........................................................................................................29 
7 Repairing ropes............................................................................................................................................29 
8 Replacing ropes...........................................................................................................................................29 
9 Replacing posts ...........................................................................................................................................29 
9.1 Replacing middle posts..................................................................................................................................29 
9.2 Replacing edge posts ....................................................................................................................................29 
10 Replacing the hinge bolt between post and base plate...........................................................................30 
11 Replacing a base plate ................................................................................................................................30 
12 Replacing base plate anchors....................................................................................................................30 
13 Replacing spiral rope anchors ...................................................................................................................30 
9FINAL CHECK.................................................................................................................. 31 
 
 
 
 
 

Page 7/33

EXPLANATIONS OF THE SYMBOLS USED

Safety note: Must be followed

Note / reminder so that the system is easily and properly installed as well as maintained

Consultation with Geobrugg is recommended

Upslope

Downslope

1 HAZARD NOTES

QUALIFICATION OF THE GROUP LEADER

Only a qualified group leader may be put in charge of the maintenance.

TENSIONED ROPES

Ropes will be tensioned. When installing and pretensioning ropes, ensure that there are no persons

within in the danger area.

RELEASING TENSIONED PARTS

Releasing or separating tensioned parts should be avoided wherever possible. If this is necessary, how-

ever, please exercise the utmost caution.

Page 8/33

2 LIFESPAN

2.1 Lifespan of the components in general

2.1.1 Individual parts

The lifespan of an individual part is defined by its load-bearing capacity. This includes e.g. the ropes, the rod an-

chors, the securing splints for the U-brake bolts etc.

2.1.2 Assemblies

The lifespan of an assembly is defined by itsload-bearing capacity as well as by its mechanical functional efficiency.

Typical assemblies include e.g. the installed barrier itself, the U-brakes and the running wheel groups.

2.1.3 Safety factors

If the functional efficiency or load-bearing capacity of the components is reduced as a result of damage or

corrosion, such that the minimum required safety factors can no longer be fulfilled, the components must

be replaced.

Page 9/33

3 INSPECTIONS

In order to ensure that no damage or advanced corrosion impairs the functional efficiency or load-bearing

capacity of the components such that the minimum required safety factors can no longer be fulfilled, regu-

lar inspections of the barriers must be carried out.

3.1 Regular inspections

The first inspection is the factory acceptance. During the factory acceptance, the signature of the expert from the

manufacturer GEOBRUGG confirms the professional installation of the flexible safety structure and the legal

warranty for the work begins in full. We would like to point out that construction and/or assembly errors can lead to

functional errors which have a negative effect on the protective effect of the entire securing structure.

3.1.1 Interval for regular inspections

The appropriate interval depends primarily on the following parameters:

•Frequency of rockfall

•Corrosion class of the region / microclimate

•Vegetation

•Weather events

3.1.2 Minimum number of inspections

Under normal environmental conditions, one inspection per year is sufficient. If rockfall occur frequently, more in-

spections are appropriate. These should be carried out before the onset of winter or after the end of winter.

Digital monitoring devices on the flexible safety structures, such as the GUARD from Geobrugg AG, provide 24/7

access to the most important information about the current condition of the barrier, and any necessary maintenance

measures can be reliably defined. GUARD ensures that the condition of the flexible safety structures is monitored

between inspections.

Further information on our website www.geobrugg.com/guard

A useful aid for the systematic checking of the barrier is the “Barrier Inspection” checklist in the Annex.

3.2 Inspection following incidents

An inspection must be carried out immediately following any notified or recorded incidents.

A useful aid for the systematic checking of the barrier is the “Barrier Inspection” checklist in the Annex.

3.3 Accessibility

The barrier must be accessible so that all the components to be checked can be inspected without the

risk of accidents. The infrastructure required for this depends on the terrain.

Page 10/33

4 CRITERIA FOR REPAIR AND REPLACEMENT

If the functional efficiency or load-bearing capacity of the components is reduced as a result of damage or

corrosion, such that the minimum required safety factors can no longer be fulfilled, the components must

be replaced. In order to be able to assess the condition and effectiveness of these flexible safety structures,

a basic knowledge of the individual components, their function and the interaction as an overall system is

required. This is what the CONSIS expert course offered by Geobrugg AG teaches. More information on

the requirements for participation and registration at https://www.geobrugg.com/en/Training-for-experts-

167821,104865.html

On the current expert database of our website you will find the certified experts with their main topics,

certainly also in your area: https://www.geobrugg.com/en/Expertdatabase-172717.html?formular_sub-

mit=1

4.1 Debris in the barrier

Any debris that accumulates in the barrier should not exceed a maximum of a third of the barrier height.

Routine clearing of the barriers is essential to ensure unimpeded functioning.

4.2 Remaining usable height following an incident

The remaining usable height of the barrier following an incident is an initial indicator of the level of damage that has

occurred. Clear sagging of the support rope or the net and a significant change in the angle of the posts indicate

an elongation of one or more U-brakes, which may need to be replaced.

4.3 U-brake

In the course of the EOTA certification tests, depending on their installation position the U-brakes became elongated

to varying degrees. Accordingly, following several minor incidents their energy absorption capacity for a subsequent

maximum incident varies.

Type

Maximum Elongation before replacement

U-150

30 cm

U-300

60 cm

U-400 / U-500

80 cm

If the initial elongation exceeds this value, the brake must be replaced. Once the U-brakes have become elongated,

the usable height of the barrier has decreased. By re-tightening the support ropes, the usable height can be restored

to its original value.

4.4 Meshes and nets

Even in the case of distorted wires or strands, as a rule it is not necessary to replace whole fields.

4.4.1 TECCO

If there are compressed, heavily distorted or torn mesh loops, these areas should be repaired.

4.4.2 SPIDER

If there are compressed, heavily distorted or superficially or completely torn mesh loops, these areas should be

repaired.

Page 11/33

4.4.3 ROCCO

If individual wires have slipped out of a clip, they should be secured with a wire rope clip of a suitable

size.

If there are compressed, heavily distorted, superficially or completely torn rings, these areas should be

repaired.

4.4.4 Wire mesh

If there are compressed, heavily distorted or torn mesh loops, these areas should be repaired.

4.5 Ropes as per the rope assembling drawings

4.5.1 Corrosion

Replacement of the rope, or a section thereof, is necessary if more than approx. 10% of the cross-section is af-

fected.

4.5.2 Mechanical damage

Mechanical damage is indicated by sharp kinks and squashed or torn outer wires. Within a few years, the rope

becomes brittle and loses the required load-bearing capacity. In cases of doubt, a section of the rope must be cut

out in order to test the breaking strength of the rope. In the event of a poor test result, the entire rope must be

replaced. If one or more strands are torn, the rope, or this section thereof, must be replaced.

4.6 Posts

The posts hold the upper support ropes at the corresponding height and thus determine the usable height of the

barrier. Slightly bent posts up to an angle of 15° do not need to be replaced.

4.7 Hinge bolt between post and base plate

In the event of impacts into the post, the hinge bolt between the post and the base plate may be bent or broken

(predetermined breaking point, in order to avoid damage to the base plates and anchors). Bent or broken hinge

bolts must be replaced.

4.8 Base plate

Plastic deformations to the base plate do not impair the functioning of the base plate significantly. Attention should

therefore be focused on the weld seams. If weld seams are torn, the base plate must be replaced.

4.9 Rod anchor of the base plate or post foot

If a rod anchor (GEWI anchor) is significantly bent (>15°), if cracks are visible, or if the anchor is pulled out of the

ground by more than 3cm, it must be replaced, since under certain circumstances its load-bearing capacity may no

longer be sufficient.

4.10 Spiral rope anchor

Spiral rope anchors need only be replaced if there is serious damage to wires. If a steel pipe of an anchor head is

damaged, this does not reduce the loading limit. However, this may lead to a shorter lifespan, because of the

reduced corrosion protection. If the anchor is pulled out of the ground by more than 3 cm, it must be replaced, since

under certain circumstances its load-bearing capacity may no longer be sufficient.

Page 12/33

5 CLEARING THE BARRIER

Various methods may be used for clearing stones, rubble or soil from rockfall barrier systems. The optimum method

depends on the local framework conditions and the quantity and type of material in the nets.

A filled barrier is always under tension. The greatest care should be taken when releasing or separating

components.

The barrier can be cleared using hand tools or a machine (e.g. a front-loader or similar). Care must be taken that

the net is not damaged, and it must be ensured that stones rolling down the slope do not cause any damage (see

illustration below).

Dug channels or large plastic pipes are useful for directing stones, debris and rubble safely towards the valley.

Lowering stones safely (secured with a rope)

5.1 Breaking stones down

Large blocks that cannot be lifted out or transported away must be broken down. Depending on the situation, the

following methods can be considered:

•Manual

•Explosives (see following illustration)

•Expanding cement (“cold explosives”). For this, the stones are drilled into and filled with the “propel-

lant” (e.g. that manufactured by Betonamit) and water is added. After about one day, the stone is bro-

ken and can be cleared away.

Page 13/33

Breaking a block down using explosives

If a crane is available, the stones can be fitted with a haulage anchor and brought down to the valley safely.

Fitting the block with haulage hooks

Lifting the block out with the aid of a crane

Page 14/33

6 TOOLS FOR SERVICING ROCKFALL BARRIERS

The following tools should be kept available for servicing:

•One or two six-meter ladders

•Two cable pulley devices with 30 kN tensile strength (e.g. HABEGGER)

•Two cable winch hoist, with 7.5 kN tensile strength (e.g. LUG-ALL®)

•Various slings, each 1 meter in length

•Shackles according the barrier type

•Torque wrench, range 25 –400 Nm (see tightening torque required for wire rope clips and base plate

fastening nuts)

•Socket wrench set with ratchet or open-ended wrench set

•Hammer, flat-nose pliers, roll of adhesive tape

•Auxiliary ropes

•30 –50 m measuring tape

•Inclinometer

•Cutting-Off wheel

•Two rope clamps, small 8 –16 mm

•Four rope clamps, large 14 –26 mm

Page 15/33

7 USE OF WIRE ROPE CLIPS

Wire rope clips have to be retightened biannually until the settlement behaviour has finished.

In 2016 Geobrugg switched from wire rope clip EN 13411-5 type 1 to type FF-C-450 type 1 class 1. It is

important to use the correct installation details.

7.1 Type EN 13411-5 type 1 (old type)

The distance ebetween the wire rope clips should be at least 1.5 x t but no more than

3 x t, where tis the width of the clamping jaws.

If you are using a thimble in the loop structure, the first wire rope clip must be attached

directly to the thimble.

The clamping brackets (U brackets) must always be fitted to the unstressed end of the

rope and the clamping jaws (saddle) must always be fitted to the stressed rope (“never

saddle a dead horse”).

Wire rope di-

ameter

[mm]

Nominal size*)

[mm]

Required

number of wire

rope clips

Distance “e”

[mm]

Required tight-

ening torque**)

[Nm]

Width

across

flats

[mm]

20 - 39

2.5

5.5 - 6.5

6.5

24 - 48

7 - 8

30 - 60

9 - 10

30 - 60

11 - 13

50 - 80

Geobrugg recommendation

min. 3 x e

Tab. 1

EN 13411-5 type 1

Page 16/33

14 - 16

50 - 90

17 - 19

50 - 90

20 - 22

50 - 90

120

22 GEOBINEX

50 –90

120

*) Nominal size describes max. rope diameter

**) Only applies to lubricated wire rope clips

When establishing the connection and before commissioning, the union nuts must be tightened to the tightening

torque specified in the table.

The recommended tightening torques apply to wire rope clips with lubricated bearing surfaces and nut threads.

After the control structure has been installed, check and readjust the tightening torque of the rope connections

again.

The recommended tightening torques are 10% higher than the torques specified in the standard. This is because

of the tolerance that applies in standard torque wrenches.

7.2 Type FF-C-450 type 1 class 1 (new type)

Instructions below apply to all wire rope clips according FF-C-450 type 1 class 1

(similar EN 13411-5 type 2) delivered by Geobrugg AG.

The distance ebetween the wire rope clips should be at least 1 x t but not exceed

2 x t , where tis the width of the clamping jaws. The loose rope end has to be 3

x e at a minimum. Geobrugg recommends looping up the remaining free section

and fixing it directly behind the last wire rope clip on the tightened rope.

If you are using a thimble in the loop structure, the first wire rope clip must be

attached directly next to the thimble. For loops without a thimble the length h

between the first wire rope clip and the point of load incidence must minimally be

15-time the nominal diameter of the rope. In unloaded condition the length hof

the loop should be not less than the double of the loop width h/2.

The clamping brackets (U-brackets) must always be fitted to the unstressed end of the rope, the clamping jaws

(saddle) must always be fitted to the strained rope („never saddle a dead horse“).

min. 3 x e

h/2

FF-C-450 type 1 class 1

Page 17/33

During tightening the nuts have to be tensioned equally (alternately) until the required tightening torque is

reached.

Wire rope di-

ameter

[mm]

Size

of the

wire rope clip

Required

amount of

wire rope clips

Required

tightening

torque lubri-

cated

[Nm]

Required

tightening

torque

unlubricated

[Nm]

Wrench

size

[mm]

3 - 4

1/8‘‘

6 - 7

1/4‘‘

5/16“

9 - 10

3/8“

11 - 12

7/16“

110

14 - 15

9/16“

150

5/8“

170

18 - 20

3/4‘‘

180

7/8“

150

330

22 GEOBINEX

7/8“

150

330

A visible contusion of the wire ropes positively indicates that the wire rope clips have been tightened to the

required tightening torque.

The required tightening torques with lubrication apply to wire rope clips whose

bearing surfaces and the threads of the nuts have been greased with Panolin CL

60 multipurpose lubricant spray (or an equivalent lubricant).

After the first load application the tightening torque has to be checked and if

not fulfilled adjusted to the required value.

Page 18/33

Undamaged wire rope clips could be reused. Especially the threads and clamping jaw have to be

checked.

Wire rope clips always have to be installed and used with the required tensioning torque.

Page 19/33

8 REPAIRING AND REPLACING COMPONENTS

8.1 Geometrical arrangement of the components

When carrying out repairs, the geometrical condition of the barrier must be restored to match that on ini-

tial acceptance. If this is no longer possible, a technically acceptable solution must be agreed with Geo-

brugg. The correct geometrical arrangement of the individual components can be found in the product

manual.

8.2 Tightening sagging ropes

Page 20/33

•Fasten the clips of the cable pulley device on the rope 01 and its shackled end loop 02.

•Actuate the cable pulley device until it is taut 03.

•Release the wire rope clips of the rope 04.

•Actuate the cable pulley device until the rope is tightened as desired (05).

•Tighten the wire rope clips of the rope with the required tightening torque (06).

•Detach the cable pulley device.

8.3 Replacing ropes

•Fit the clips of the cable pulley device to the post (e.g. with the auxiliary strap) 01 and to the fastening

of the U-brake (e.g. rope anchor) 02.

Carry out the remaining steps as described in section 8.2:

•Actuate the cable pulley device until the rope that is to be replaced is loose.

•Release the wire rope clips of the rope and remove them.

•Fit the new rope.

•Tighten the wire rope clips for the new rope with the required tightening torque.

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