DEHACO DSG User manual

DSG
Hydraulic demolition and sorting grabs
Operation and
maintenance manual
DSG-V2.0/31-01-2022
English

3
© 2022 Dehaco B.V. • Operation and maintenance manual DSG Demolition and Sorting grabs • No. DSG.2165.0001 • 31-01-2022
Preface
© Copyright 2022, Dehaco B.V.
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording
or otherwise, without express written permission from Dehaco B.V. This also applies to any accompanying drawings and diagrams. Dehaco B.V. reserves the right to revise sections of
this document at any time and without prior or direct notice to the customer. The contents of this manual can also be changed without prior notice. For information regarding setting,
maintenance or repairs not included in this user manual, please contact your supplier’s technical department. This user manual has been prepared with the utmost care, however Dehaco B.V.
can not accept responsibility for any errors in this user manual or the consequences thereof.
PREFACE
Thank you for choosing for a demolition and sorting grab from Dehaco!
Dehaco was established in 1985 and has since gained a leading position in the European demolition industry. With our complete product
range, we are the ideal complete supplier for the demolition, recycling and asbestos remediation industry in the Benelux.
We are not only leading in the eld of selling all imaginable requirements for these markets, our large rental eet and modern test centre
for equipment items and asbestos tools also contribute to Dehaco’s unique market position. Dehaco is a market leader in the Benelux in
the eld of asbestos remediation products, dust control products and hydraulic equipment units for the demolition sector.
Dealers
Dehaco works with a network of global dealers for the sale of demolition equipment, asbestos removal and dust control products. These
dealers are also qualied to service and maintain your equipment.
Demolition and sorting grabs
Dehaco demolition and sorting grabs include a CE mark and comply with all relevant European safety regulations. Safety instructions
provided in the maintenance and user manual must be followed. The safety and operating instructions for the excavator as well as
regulations in the vicinity of where the demolition and sorting grab is used, maintained or repaired must also be observed.
Modications to the demolition and sorting grab may only be performed with written permission of the manufacturer! Only then shall the
warranty conditions and CE liability apply.
Operation and maintenance manual
The purpose of this operation and maintenance manual is to familiarise you with the safe and eective operation of the demolition and
sorting grab. Maintenance instructions are also included in this document.
Read these instructions carefully before attaching and using the demolition and sorting grab.
Any comments, requests or omissions may be directed to Dehaco B.V. Contributions to improve this manual are always welcome. We hope
you enjoy your purchase.
Dehaco B.V.
Kruisbaak 25
2165 AJ Lisserbroek (NL)
T +31 (0) 252 41 79 50
F +31 (0) 252 41 85 31
I www.dehaco.nl
Dealer

54 © 2022 Dehaco B.V. • Operation and maintenance manual DSG Demolition and Sorting grabs • No. DSG.2165.0001 • 31-01-2022
Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) • ✆ +31 (0)252 - 41 79 50 • [email protected] • www.dehaco.nl
CE-Certicaat fabrikant Inhoudsopgave
INDEX
1. PRECAUTIONS AND SAFETY INSTRUCTIONS 6
1.1 Signal words 6
1.2 Qualication 6
1.3 Intended use 6
1.4 Use other than specied 6
1.5 Protective equipment 6
1.6 Transport, precautions 7
1.7 Hydraulic equipment, precautions 7
1.8 Consumables, precautions 7
1.9 Explosions and re, precaustions 7
1.10 Elektric shock, precautions 8
1.11 Falling rocks, precautions 8
1.12 Emissions, precautions 8
1.13 Operating machines, precautions 8
1.14 Modications or changes, precautions 8
1.15 Environmental contamination, precautions 8
2. OVERVIEW 10
2.1 Description of the equipment 10
2.2 Operation 10
2.3 Nameplate 11
2.4 Applications 12
2.5 Warranty 12
2.6 Removing the packaging 12
2.7 Scope and content of the delivery 12
3. TRANSPORT 13
3.2 Transport with a fork-lift truck 13
3.3 Transport by lorry 13
4. INSTALLATION 14
4.1 Hydraulic uids 14
4.2 Attaching to the excavator 15
4.3 Detaching the demolition and sorting grab from the excavat16
4.4 Detaching the adapter plate 17
5. OPERATION 18
5.1 Preparations for starting 18
5.2 Switching the demolition and sorting grab on and o 18
5.3 Function test 18
5.4 Proper use 19
5.5 Prohibited use 21
6. MAINTENANCE 25
6.1 Daily maintenance 26
7. TROUBLESHOOTING 28
7.1 The demolition and sorting grab does not work 28
7.2 Insucient closing force 28
7.3 The rotate function does not work 28
7.4 The operating temperature is too high 29
7.5 Oil leaks at hydraulic connections 29
7.6 Insucient lubrication 29
8. REPAIR 30
8.1 Repair service for the demolition and sorting grab 30
9. STORAGE 31
9.1 Demolition and sorting grab 31
9.2 Grease cartridges 31
10. DISPOSAL 32
10.1 Demolition and sorting grab 32
10.2 Hydraulic hoses 32
10.3 Hydraulic oil 32
10.4 Grease and grease cartridges 32
11. TECHNICAL SPECIFICATIONS 33
Hydraulic demolition and sorting grabs 33
without rotation
Hydraulic demolition and sorting grabs 34
with rotation

76 © 2022 Dehaco B.V. • Operation and maintenance manual DSG Demolition and Sorting grabs • No. DSG.2165.0001 • 31-01-2022
Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) • ✆ +31 (0)252 - 41 79 50 • [email protected] • www.dehaco.nl
1. Precautions and safety instructions1. Precautions and safety instructions
1. PRECAUTIONS AND SAFETY
INSTRUCTIONS
This chapter describes the safety regulations. These must be
observed before installing, using or maintaining the demolition
and sorting grab. Retain this operation and maintenance manual
carefully for the entire life of the demolition and sorting grab.
Any person transporting, installing, removing, operating,
maintaining, repairing, storing or disposing of this demolition and
sorting grab must read this operation and maintenance manual.
Following these safety instructions will:
◊ prevent the risk of injury and fatal accidents.
◊ protect the demolition and sorting grab from physical
damage.
◊ protect the environment against environmental damage.
All safety instructions in this manual comply with the laws and
regulations of the European Union. Additional national/regional
regulations must also be observed.
Outside the European Union, the demolition and sorting grab
must be used in accordance with the laws and regulations of the
relevant country. Observe any other more stringent regional
regulations and legislation.
1.1 Signal words
This manual includes safety indicators that can be identied as
follows:
DANGER
Indicates a hazardous situation where the user can (seriously)
injure himself or (severely) damage the product.
WARNING!
Indicates potential damage to the product should the
user not perform the procedures carefully.
CAUTION!
Indicates a hazardous situation which, if not avoided,
may result in minor or moderate injury.
ATTENTION
The signal word ATTENTION is used to provide additional
information and alert the user to potential problems.
1.2 Qualication
Transport of the demolition and sorting grab is only permitted
when carried out by persons who:
◊ are authorised to operate a forklift in accordance with
applicable federal laws;
◊ are familiar with all relevant national/regional safety and
accident prevention regulations.
◊ have read this operation and maintenance manual.
Installation, maintenance, storage and disposal of
demolition and sorting grab is only permitted when carried
out by persons who:
◊ are familiar with all relevant national/regional safety and
accident prevention regulations.
◊ have read this operation and maintenance manual.
Operation of the demolition and sorting grab is only
permitted when carried out by qualied excavator operators.
Operators are qualied if they:
◊ have been trained in accordance with federal regulations
to operate an excavator.
◊ are familiar with all relevant national/regional safety and
accident prevention regulations.
◊ have read this operation and maintenance manual.
Testing the installation of the demolition and sorting grab is
only permitted when carried out by persons authorised to do
so.
Repair of the demolition and sorting grab is only permitted
when carried out by persons under the instruction of Dehaco.
1.3 Intended use
The demolition and sorting grab should only be attached to an
excavator with a capacity suitable for use with the demolition
and sorting grab. Read the manual from the excavator
manufacturer thoroughly before installing and using the grab.
Follow all instructions closely.
The demolition and sorting grab may only be used for the
following activities:
◊ Demolition of timber structures
◊ Demolition of masonry
◊ Sorting
◊ Loading work
1.4 Use other than specied
Never use the demolition and sorting grab to:
◊ pull on/demolish girders, brackets, walls and partitions
This may cause damage to the demolition and sorting
grab and slewing ring and may also cause the excavator to
lose its stability.
◊ hit or hack.
◊ plough debris.
◊ move the excavator.
◊ lift or transport loads with attachments.
◊ work underwater.
◊ work in explosive environments.
1.5 Protective equipment
The personal protective equipment must comply with
applicable health and safety regulations.
Always wear the following personal protective equipment:
◊ safety helmet
◊ safety goggles with side shields
◊ safety gloves
◊ safety shoes
◊ warning vest
1.6 Transport, precautions
WARNING!
- FALLING SUPPORT
If the load-bearing capacity of the excavator is not sucient,
it will not be stable when using the demolition and sorting
grab. The excavator could tip over and cause injury.
Using an excavator with excessive load capacity will cause
excessive load on the demolition and sorting grab resulting
in increased wear.
ØOnly attach the demolition and sorting grab to an
excavator with suitable capacity.
ØThe excavator must always remain stable.
ØRead this manual thoroughly before attaching and using
the demolition and sorting grab.
1.7 Hydraulic equipment, precautions
WARNING!
- EXCESSIVE HYDRAULIC PRESSURE
Excessive hydraulic pressure overloads the components
of the demolition and sorting grabs. This may cause
components to break or crack resulting in serious injury.
ØInsert the discharge tube of the pressure relief valve
directly in the tank to ensure safe operation!
ØThe pressure relief valve must be set to the maximum
static pressure.
ØThe settings for the pressure relief valve must be checked
to ensure the maximum static pressure of the hydraulic
system (see Technical Specications section) is never
exceeded. Apply a lead seal to the pressure relief valve.
ØPrior to the rst use, the safety devices on the hydraulic
system must be inspected for their quality, suitability
and performance by a professional/approved inspection
agency (CE marking, etc.)
ØWhen any signicant changes are made to the hydraulic
system, an acceptance inspection must be carried out in
accordance with the relevant national safety regulations.
WARNING!
- DISCHARGE OF HOT HYDRAULIC OIL
The hydraulic system is under high pressure. Hydraulic
lines may leak or burst. Discharge of hydraulic oil can
cause serious injury.
ØWhen attaching the demolition and sorting grabs, no
hydraulic lines are to be laid through the excavator cabin
ØOnly use hydraulic lines that meet with the following
quality requirements:
-For the Open and Close functions:
§Hydraulic hoses with 4 reinforcing steel cables in
accordance with DIN EN 8566 4SH.
§Hydraulic tubes; seamless cold drawn steel
tubes in accordance with DIN EN 10305.
-For the Rotate function:
§Hydraulic hoses with two steel braids in
accordance with DIN EN 853 2SN.
§Hydraulic tubes; seamless cold drawn steel
tubes in accordance with DIN EN 10305.
1.8 Consumables, precautions
WARNING!
- HOT, HIGH PRESSUSE HYDRAULIC FLUID
A leak in the hydraulic system will cause hydraulic oil to spray
out under high pressure. The oil stream can penetrate human
skin and cause permanent injury. Hot hydraulic oil can cause
burns.
ØNever use your hands to locate leaks.
ØAlways keep your face away from a potential leak.
ØIf hydraulic oil has penetrated your skin, always consult a
physician immediately.
WARNING!
- SPILLED HYDRAULIC OIL
Spilled hydraulic oil can make the oor slippery causing
people to slip and resulting in injury. Hydraulic oil is
harmful to the environment and must not penetrate the
soil or reach the water table/ground water supplies.
ØEnsure no hydraulic oil is spilled.
ØWhen hydraulic oil has spilled, clean the oor
immediately.
ØObserve all regulations regarding safety and
environmental protection when using hydraulic oil.
WARNING!
- SKIN INFECTIONS/DISEASES CAUSED BY OIL AND GREASE
Hydraulic oil and grease can cause skin rashes (or even
eczema) if they come into contact with the skin.
ØAvoid skin contact with hydraulic oil and grease.
ØUse a suitable product to protect the skin.
ØAlways wear safety gloves when working with hydraulic
oil or grease.
ØWash contaminated skin immediately with soap and
water.
1.9 Explosions and re, precaustions
DANGER!
- EXPLOSION AND FIRE
Explosions cause serious injury or can result in death.
Explosives touched by the demolition and sorting grab could
cause an explosion.
ØNever use the demolition and sorting grab in the
immediate vicinity of explosives.
ØEnsure no explosives are hidden in the concrete.
ØIdentify the location of the gas lines on drawings of the

98 © 2022 Dehaco B.V. • Operation and maintenance manual DSG Demolition and Sorting grabs • No. DSG.2165.0001 • 31-01-2022
Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) • ✆ +31 (0)252 - 41 79 50 • [email protected] • www.dehaco.nl
1. Precautions and safety instructions1. Precautions and safety instructions
entire construction zone.
DANGER!
- EXPLOSION AND FIRE
The use of the demolition and sorting grab may
cause sparking which could ignite highly ammable
gases. This may result in re or explosion.
ØNever work in an environment with highly ammable
substances.
ØEnsure there are no hidden gas sources in the work area.
ØInspect the gas line drawings for the work area.
DANGER!
- EXPLOSION AND FIRE
Dust rich air can form an explosive atmosphere which can
ignite when using the demolition and sorting grab. This can
lead to re or explosion.
ØNever use the demolition and sorting grab in an explosive
atmosphere.
ØAlways ensure adequate ventilation is provided when
working in buildings or in an enclosed area.
1.10 Elektric shock, precautions
DANGER!
- ELEKTRIC SSHOCK
Any contact between the demolition and sorting grapple
and electrical circuits or other power sources will cause an
electric shock which could result in serious injury or death. The
demolition and sorting grab is not electrically insulated.
ØNever work near electrical circuits or other power sources.
ØEnsure there are no hidden electrical circuits are in the work
zone.
ØConsult wiring diagrams.
1.11 Falling rocks, precautions
WARNING!
- AIRBORNE FRAGMENTS
Material which breaks free can be thrown and cause serious
injury. Even small objects falling from a great height can cause
serious damage.
While using the demolition and sorting grab, the danger zone is
considerably greater than during regular excavation work. The
danger zone must therefore be enlarged or secured in a suitable
manner.
ØSafeguard the danger zone.
ØStop the works immediately when someone enters the
danger zone.
ØClose the windscreen and side windows of the excavator
cabin.
1.12 Emissions, precautions
WARNING!
- LUNG DISEASES CAUSED BY DUST
Using the demolition and sorting grab may release dust. Dust
produced during the demolition/moving/sorting of rocks,
concrete and asphalt or other similar materials can lead to
silicosis (also called black lung disease) by inhalation. Silicosis
is a chronic condition that can lead to cancer and death.
ØWear suitable respiratory protection.
1.13 Operating machines, precautions
WARNING!
- NARCOTICS, ALCOHOL AND DRUGS
Narcotics, alcohol and drugs make the user less attentive and
aect the ability to concentrate. Carelessness and incorrect
assessment of a situation may result in serious injury or death.
ØNever work with the excavator and hydraulic work tool
when under the inuence of narcotics, alcohol or drugs that
aect concentration.
ØNever allow other people under the inuence of narcotics,
alcohol or drugs that aect concentration work with the
excavator and the demolition and sorting grab.
1.14 Modications or
changes, precautions
WARNING!
- MODIFICATIONS OR CHANGES
Modications to the demolition and sorting grab or
the adapter plate can lead to serious injury.
ØNever modify the demolition and sorting grab.
ØUse only original parts or accessories approved by Dehaco.
1.15 Environmental
contamination, precautions
ATTENTION
- ENVIRONMENTAL CONTAMINATION BY HYDRAULIC OIL
Hydraulic oil is harmful to the environment. When hydraulic oil is
released (e.g. by leakage) the groundwater and soil may become
contaminated causing organisms to die.
ØCollect all spilled hydraulic oil to prevent environmental
contamination. For small amounts, use absorbent material.
Ensure it does not make its way into the soil, groundwater
or water lines.
ØCollect the contaminated absorbent material in an airtight
container and seal it well.
ØContact a licensed waste disposal company.
ØRemove all contaminated materials in accordance with
current environmental regulations.

1110 © 2022 Dehaco B.V. • Operation and maintenance manual DSG Demolition and Sorting grabs • No. DSG.2165.0001 • 31-01-2022
Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) • ✆ +31 (0)252 - 41 79 50 • [email protected] • www.dehaco.nl
2. Overview2. Overview
2. OVERVIEW
2.1 Description of the equipment
A) Port »A« function »Openen« (standard)
B) Port »B« function »Sluiten« (standard)
C) Port »R« function »Roteren«
D) Shell
E) Replaceable tooth
F) Frame
G) Slewing ring
H) Head assemblu
I) Plate with hole pattern for adapter plate
2.2 Operation
Below is a simplied explanation for operating the demolition
and sorting grab.
Close
The demolition and sorting grab is closed by operating a foot
pedal or joystick in the excavator cabin which operates line B
(function Close). The cylinders slide over the piston rod and the
shells close allowing the material to be grasped.
Open
The demolition and sorting grab is opened by operating a foot
pedal or joystick in the excavator cabin. Oil is brought to the
cylinders through line A causing the piston rod to retract and the
shells to open.
Rotate
Activate the function Rotate grab. This carries hydraulic oil to
the demolition and sorting grab motor and activates the rotation
function.
To achieve innite rotation, the demolition and sorting grab is
tted with a rotation transmission. The oil ows for the Open and
Close functions are carried through the rotation transmission.
2.3 Nameplate
CAUTION!
- MISSING INFORMATION
The nameplate contains important information about the
demolition and sorting grab. A missing nameplate may lead
to misinterpretation of potential risks and may pose personal
risks. The nameplate must always be clearly legible.
ØReplace a damaged nameplate immediately.
ØUse the parts list to order a new nameplate.
DEHACO B.V.
LISSERBROEK - HOLLAND
www.dehaco.nl
AIR/OIL FLOW
WEIGHT
PRESSURE
SERIAL No.
YEAR
TYPE
Kg
l/m
bar
AB
C
D
E
F
G
H
I

1312 © 2022 Dehaco B.V. • Operation and maintenance manual DSG Demolition and Sorting grabs • No. DSG.2165.0001 • 31-01-2022
Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) • ✆ +31 (0)252 - 41 79 50 • [email protected] • www.dehaco.nl
3. Transport2. Overview
2.4 Applications
General: sorting and loading work.
Demolition: masonry and timber structures.
2.5 Warranty
The following shall render the warranty void:
◊ Any use not in accordance with this manual.
◊ Maintenance which is not performed or is performed
incorrectly.
◊ Use of incorrect materials.
◊ Use of unapproved components.
◊ Damage caused by wear.
◊ Damage caused by improper storage.
◊ Changes implemented without consulting the manufacturer.
2.6 Removing the packaging
1) Remove all packaging material.
2) Dispose of the packaging material in accordance with
applicable regulations.
3) Check that the delivery is complete.
4) Inspect the delivery for any visible damage.
5) Contact Dehaco B.V. or your dealer if any defects are
identied.
2.7 Scope and content of the delivery
The demolition and sorting grab is delivered with the following:
◊ Demolition and sorting grab.
◊ Operation and maintenance manual.
◊ Parts list.
◊ EC declaration of conformity.
◊ Any ordered accessories such as hoses and couplings.
3. TRANSPORT
WARNING!
- TIPPING FORK-LIFT TRUCK AND/OR FALLING DEMOLITION AND
SORTING GRAB
A falling demolition and sorting grab and/or tipping forklift
truck can cause serious injury and property damage
ØOnly use machines with suitable capacity to transport the
demolition and sorting grab.
ØEnsure no persons are in the vicinity of the demolition and
sorting grab.
Transport the demolition and sorting grab with the shells open.
The demolition and sorting grab is more stable when being
transported with the shells open. There is also less oil in the
demolition and sorting grab when the shells are open. As a result,
less oil loss and less oil in the environment will occur should an
unexpected leak be detected.
◊ Open the shells of the demolition and sorting grab for
transport. Proceed as follows to ensure the shells remain
open:
- Seal all hose ports and connections with the supplied
plugs and cap nuts when the hydraulic hoses are
removed.
- If the hoses remain attached to the demolition and
sorting grab for transport, ensure the hoses are inserted
in the demolition and sorting grab.
3.2 Transport with a fork-lift truck
ØPlace the fork-lift truck under the housing to prevent the
demolition and sorting grab from tipping or falling.
ØLift the demolition and sorting grab slowly.
ØTransport the demolition and sorting grab to its intended
location.
3.3 Transport by lorry
WARNING!
- DEMOLITION AND SORTING GRAB CAN SLIP OR TRIP
If the demolition and sorting grab slips or tips over and falls from
the lorry, it can cause serious injury and property damage.
ØPlace the demolition and sorting grab on an anti-slip mat.
ØSecure the demolition and sorting grab with straps or
chains.
◊ Secure the demolition and sorting grab on the loading
surface as shown in gure below.
◊ Observe all national/regional regulations regarding the
securing of loads.

1514 © 2022 Dehaco B.V. • Operation and maintenance manual DSG Demolition and Sorting grabs • No. DSG.2165.0001 • 31-01-2022
Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) • ✆ +31 (0)252 - 41 79 50 • [email protected] • www.dehaco.nl
4. Installation4. Installation
4. INSTALLATION
WARNING!
- DISCHARGE OF HOT HYDRAUILC OIL
The hydraulic system is under high pressure. If the hydraulic
connections loosen or become disconnected, the hydraulic
oil will spray out under high pressure. This can lead to serious
injury.
ØEnsure the pressure in the hydraulic system is released
before connecting or disconnecting the demolition and
sortin grab.
ATTENTION
- ENVIRONMENTAL CONTAMINATION BY HYDRAULIC OIL
Hydraulic oil is harmful to the environment. When hydraulic
oil is released (e.g. by leakage) the groundwater and soil may
become contaminated causing organisms to die.
ØCollect all spilled hydraulic oil to prevent environmental
contamination. For small amounts, use absorbent
material. Ensure it does not make its way into the soil,
groundwater or water lines.
ØCollect the contaminated absorbent material in an airtight
container and seal it well.
ØContact a licensed waste disposal company.
ØRemove all contaminated materials in accordance with
current environmental regulations.
4.1 Hydraulic uids
The following uids must be used for the demolition and sorting
grab.
4.1.1 Mineral hydraulic oil
All hydraulic oils indicated by the excavator manufacturer can
also be used for the demolition and sorting grab.
◊ The oil must meet viscosity class HLP 32 or higher.
◊ In the summer and in hot climates, oils with viscosity class
HLP 68 or higher must be used.
◊ In all other cases, the specications of the excavator
manufacturer must be taken into account.
Other conditions apply when used at lower ambient
temperatures. More information is provided in the section
entitled Low ambient temperatures.
◊ Inspect the oil lter regularly!
An oil lter must be tted in the return line of the hydraulic
system. The maximum allowable mesh size is 50 microns. It must
also be tted with a magnetic separator.
4.1.2 Non-mineral hydraulic oil
ATTENTION
- MIXED HYDRAULIC OIL
Never mix mineral oil with non-mineral oil. Even small traces of
mineral oil mixed with non-mineral oil may result in damage to
both the demolition and sorting grab as well as the excavator.
Non-mineral oil loses its biodegradability.
ØUse only one type of hydraulic oil.
If non-mineral oil is used, the brand must be indicated when the
demolition and sorting grab is brought in for repair.
To protect the environment, or for technical reasons, the
hydraulic oils currently used are not classied as HLP mineral oils.
In principle, the demolition and sorting grabs from Dehaco B.V.
are designed for use with mineral oils. Contact Dehaco B.V. before
deciding to change to non-mineral hydraulic oil.
4.1.3 Grease
◊ Observe the safety regulations before working with oils and
greases.
4.2 Attaching to the excavator
A colleague’s help is required to attach the demolition and sorting
grab to the excavator.
◊ Agree on hand signals to use with your colleague to enable
them to assist in correctly positioning the excavator on the
demolition and sorting grab.
◊ Lower the arm of the excavator to position it in the adapter
plate holder.
WARNING!
- INJURY FROM SUDDEN MOVEMENTS OF THE EXCAVATOR ARM
A sudden movement by the excavator can strike your colleague
and cause serious injury.
ØMove the excavator arm carefully and in a controlled manner
when someone is in the danger zone.
ØEnsure your colleague always remains visible.
WARNING!
- CUTS OR INJURIES TO HANDS AND FINGERS
Drilled holes and surfaces may be razor sharp and cause serious
injury.
ØNever use your ngers to inspect holes or mounting surfaces.
If a pin and bushing system, follow the procedure outlined below.
If another (quick change) system is being used, we recommend
consulting the manufacturer’s manual.
◊ Follow the directions provided by a colleague to properly
align the holes in the adapter plate (B) and the excavator arm
(A).
◊ Install and secure the hinge pin (C).
◊ Raise the demolition and sorting grab.
◊ Extend the bucket cylinder (E) until the securing hole in the
coupling (F) aligns with the securing hole in the adapter plate
(B).
◊ Install and secure the coupling pin (G).
◊ Carefully move the bucket cylinder (E) to both end positions.
A
C
D
B
A
G
F
B
E
Optimum viscosity range 30 - 60 cSt
Max. initial viscosity 2000 cSt
Max. oil temperature 80ºC
Description Article number
Grease
Q8 Ruysdael CL2 9210.0007

1716 © 2022 Dehaco B.V. • Operation and maintenance manual DSG Demolition and Sorting grabs • No. DSG.2165.0001 • 31-01-2022
Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) • ✆ +31 (0)252 - 41 79 50 • [email protected] • www.dehaco.nl
4. Installation
4.2.1 Making the hydraulic connections
ATTENTION
- INCORRECT HYDRAULIC SYSTEM
The excavator must have a suitable hydraulic system to operate
the demolition and sorting grab. Improperly installed piping
and incorrectly calculated dimensions may lead to excessive oil
temperatures anD damage to the demolition and sorting grab.
ØOnly use lines with the dimensions specied in the chapter
Technical Specications.
ØVerify the specied dimensions of the hydraulic lines on
existing hydraulic systems. All supply and return lines for
the hydraulic oil must have a sucient internal diameter
and wall thickness
ØEnsure the hydraulic hoses cannot be pinched.
◊ Switch the excavator o.
◊ Relieve the pressure of the hydraulic system by releasing the
pressure in the hydraulic tank.
◊ Close all valves if quick connects are not used.
ATTENTION
- DAMAGE TO HYDRAULIC COMPONENTS
Sand and dirt can enter the hydraulic lines and cause damage.
Clean all hydraulic lines and connections before
connecting the hydraulic hoses.
◊ Contaminated hydraulic pipes must be cleaned by a
specialist company.
◊ Clean contaminated hydraulic pipe connections with a
suitable universal degreaser/cleanser.
◊ Refer to information from the cleaning agent manufacturer
regarding safety and use.
4.2.2 Connecting the hydraulic hoses for the
Open and Close functions
◊ Remove the caps/blank anges from ports Aand Band store
in a safe place.
◊ Inspect for damage.
◊ Replace any damaged connections.
◊ If the two input lines from the excavator arm have the same
working pressure, connect the lines to the Open and Close
ports being careful not to cause pinching (see gure page 10).
◊ If the pressure in the two input lines dier, connect the hose
with the higher operating pressure to the Close port and the
hose with the lower pressure to the Open port being careful
not to pinch the hoses.
4.2.3 Connecting the hydraulic hoses for the
Rotate function
◊ ◊ Remove the cap nuts and plugs from the connections for
the Rotate function and store them for future use.
◊ Inspect the connections for damage.
◊ Replace damaged connections.
◊ Attach the hoses to the connector for the Rotate function.
◊ Connect both hoses for the Rotate function to the arm
carefully to prevent pinching.
WARNING!
- THRASHING HYDRAULIC HOSES
Hydraulic hoses under pressure will thrash about if a bolt
connection becomes loose or detached. This can cause serious
injury.
ØTighten the mounting screws to the correct torque.
4.3 Detaching the demolition and
sorting grab from the excavator
WARNING!
- UNEXPECTED MOVEMENTS
Sudden movements by the excavator can cause injury.
ØSecure the excavator to prevent unexpected movement.
ØFollow the instructions from the excavator manufacturer.
WARNING!
- THRASHING HYDRAULIC HOSES
Hydraulic hoses under pressure will thrash about if a bolt
connection becomes loose or detached. This can cause serious
injury.
ØRelieve the pressure in the hydraulic system before
disconnecting the hydraulic hose.
WARNING!
- HOT COMPONENTS
The hydraulic cylinder, hoses, tubes and ttings become very hot
during operation. Contact with these components can cause
burns.
ØNever touch hot components.
ØIf works need to be completed on or near hot components,
wait for them to cool down rst.
◊ Close all shut-o valves in the excavator arm system if quick
connects are not used.
◊ Disconnect the hoses to and from the demolition and sorting
grab on the side of the excavator arm.
◊ Seal all open hose ends.
4.3.1 Mechanical detachment
Note: If a pin and bushing system, follow the procedure outlined
below. If another (quick change) system is being used, we
recommend consulting the manufacturer’s manual.
◊ Request help from a colleague when detaching the
demolition and sorting grab.
◊ Agree on clear hand signals for moving the excavator arm.
WARNING!
- INJURIES CAUSED BY THE EXCAVATOR ARM OR DEMOLITION AND
SORTING GRAB
Sudden movements by the excavator can cause the excavator or
the demolition and sorting grab to strike your colleague.
ØMove the excavator arm very slow and in a controlled
manner when a colleague is in the danger zone.
ØEnsure your colleague always remains visible.
4. Installation
WARNING!
- METAL SPLINTERS
Hammering bolts out can cause splinters to y o
which can cause serious damage to the eyes.
ØWear safety goggles when hammering out bolts.
◊ Remove the bolt clips from the shank.
◊ Remove the connecting bolt with a steel pin and a hammer.
◊ Switch the excavator on.
◊ Retract the bucket cylinder.
◊ Remove the hinge pin with a steel pin and a hammer.
◊ Remove the excavator arm from the adapter plate.
4.4 Detaching the adapter plate
◊ Loosen the fastening screws for the adapter plate.
◊ Lift the adapter plate using suitable lifting equipment and
place it on wooden support blocks.
◊ Store the mounting screws and washers for future use.

1918 © 2022 Dehaco B.V. • Operation and maintenance manual DSG Demolition and Sorting grabs • No. DSG.2165.0001 • 31-01-2022
Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) • ✆ +31 (0)252 - 41 79 50 • [email protected] • www.dehaco.nl
5. OperationOperation
5. OPERATION
WARNING!
- DISCHARGE OF HOT HYDRAULIC OIL
The hydraulic system is under high pressure. If the hydraulic
connections loosen, the hydraulic oil will spray out under
high pressure. This can lead to serious injury.
ØSwitch the excavator and demolition and sorting grab o
immediately if a leak is detected.
ØRelease the pressure in the hydraulic system.
ØRepair any leaks before using the demolition and sorting
grab again.
WARNING!
- HOT COMPONENTS
The hydraulic cylinder, hoses, tubes and ttings become very
hot during operation. Contact with these components can cause
burns.
ØNever touch hot components.
ØIf works need to be completed on or near hot components,
wait for them to cool down rst.
ATTENTION
- ENVIRONMENTAL CONTAMINATION BY HYDRAULIC OIL
Hydraulic oil is harmful to the environment. When hydraulic
oil is released (e.g. by leakage) the groundwater and soil may
become contaminated causing organisms to die.
ØCollect all spilled hydraulic oil to prevent environmental
contamination. For small amounts, use absorbent material.
Ensure it does not make its way into the soil, groundwater
or water lines.
ØCollect the contaminated absorbent material in an airtight
container and seal it well.
ØContact a licensed waste disposal company.
ØRemove all contaminated materials in accordance with
current environmental regulations.
ATTENTION
- EXCESSIVE HYDRAULIC OIL TEMPERATURE
The temperature of the hydraulic oil must not exceed 80 C.
Higher temperatures will damage the seals of the hydraulic
components.
ØAlways monitor the oil temperature.
ØTurn the excavator and demolition and sorting grab o
when the monitor indicates an increased oil temperature.
ØInspect the hydraulic system and the pressure relief valve.
5.1 Preparations for starting
WARNING!
- TIPPING THE EXCAVATOR OVER
An excavator that falls or tips over because it is placed on an
uneven surface can cause serious injury and property damage.
ØAlways move the excavator with the greatest caution.
ØDo not use the demolition and sorting grab before the
excavator is stable.
WARNING!
- AIRBORNE FRAGMENTS
Fragments of materials that are released when using the
demolition and sorting grab can be thrown and cause serious
injury to people if struck. Even small objects falling from a great
height can cause serious damage.
The danger zone while using the demolition and sorting grab is
signicantly larger than for excavation work.
ØSafeguard the danger zone.
ØStop working with excavator soon as someone enters the
danger zone.
ØClose the windscreen and side windows of the excavator
cabin.
◊ Precautions for starting the demolition and sorting grab:
-Ensure the demolition and sorting grab is complete.
-Inspect the demolition and sorting grab and adapter
plate for cracks.
-Ensure there are no leaks from the hydraulic lines.
The preparations required prior to starting the demolition and
sorting grab depend on the ambient temperature:
-Ambient temperatures below 0 C (see Low ambient
temperature).
-Ambient temperature higher than 30 C (see High
ambient temperature).
While working with the demolition and sorting grab, the oil
temperature must remain between 0 C and +80 C. The full
capacity of the demolition and sorting grab can be utilised at an
oil temperature of approximately +60 C.
1) Ensure no persons are in the danger zone.
2) Start the excavator according to the instructions provided by
the excavator manufacturer.
3) Allow the excavator to warm up until the specied operating
temperature is reached.
4) Place the excavator in the desired position.
5.2 Switching the demolition
and sorting grab on and o
After attaching the demolition and sorting grab to the excavator,
the grab can be operated by the excavator’s hydraulic system. All
the functions for controlling the excavator remain unchanged.
The demolition and sorting grab is switched on and o by
electrical and hydraulic signals.
◊ Switch the demolition and sorting grab on and o according
to the specied operating instructions.
◊ Leaving the excavator cabin? Switch the safety switch for the
demolition and sorting grab to “o”.
Perform the actions described above to avoid unintentional
starting of the demolition and sorting grab.
5.3 Function test
Always perform a function test before using the demolition and
sorting grab. Ensure all hydraulic lines and connections are tight
and that the demolition and sorting grab operates smoothly.
◊ Prepare the demolition and sorting grab to allow proper use
(see Preparations for starting).
◊ Raise the demolition and sorting grab using the arm of the
excavator until it hangs vertically.
◊ Close and open the shells.
◊ Rotate the demolition and sorting grab to the left and right
using the Rotate grab function.
◊ Verify the hydraulic lines of the demolition and sorting grab
work properly.
◊ Switch the demolition and sorting grab o immediately if
oil leaks from the hydraulic lines or other malfunctions are
identied.
◊ Relieve the pressure of the hydraulic system by releasing the
pressure in the hydraulic tank.
◊ Only use the demolition and sorting grab again after all leaks
and malfunctions have been corrected.
5.4 Proper use
5.4.1 Masonry demolition
Grasp the masonry with the shells of the demolition and sorting
grab and break the structure.
5.4.2 Sorting and loading
Use the shells for sorting and loading material.
5.4.3 Dust control
Keep the work area humid by continuously spraying water. This
reduces dust levels to a minimum. Dehaco B.V oers various
solutions for dust control in the form of misters and mist
sprayers. Visit www.dehaco.nl for more information.

2120 © 2022 Dehaco B.V. • Operation and maintenance manual DSG Demolition and Sorting grabs • No. DSG.2165.0001 • 31-01-2022
Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) • ✆ +31 (0)252 - 41 79 50 • [email protected] • www.dehaco.nl
5. Operation
5.4.4 High ambient temperature
◊ Only use hydraulic oils with sucient viscosity.
In summer and in tropical climates, hydraulic oil type HLP 68
meets the minimum requirements.
5.4.5 Low ambient temperature
For ambient temperatures below -20 ºC
Before working with the demolition and sorting grab in ambient
temperatures below -20 ºC, ensure the excavator is suciently
warmed up.
Preferably, the excavator and the demolition and sorting grab
should be parked in a heated, covered area when not in use.
ATTENTION
- INSUFFICIENT HYDRAULIC OIL TEMPERATURE
Working with the demolition and sorting grab while the hydraulic
oil is still cold seals will damage the hydraulic component seals.
Do not use the demolition and sorting grab until
the oil temperature is at least 0 ºC.
◊ Start the excavator according to the instructions provided by
the excavator manufacturer.
◊ Allow the excavator warm up until the operating temperature
specied by the excavator manufacturer is reached.
◊ Raise the demolition and sorting grab using the arm of the
excavator until it hangs vertically.
◊ Close, open and rotate the demolition and sorting grab while
the excavator is warming up.
ATTENTION
- DAMAGE TO HYDRAULIC COMPONENTS
Hot hydraulic oil will damage a cold hydraulic demolition and
sorting grab.
Do not ll the hydraulic system with hot hydraulic oil.
The temperature of the hydraulic oil from the excavator must be
at least 0 C.
◊ Start the demolition and sorting grab when the temperature
reaches 0º C.
◊ Perform a function test and ensure all hydraulic lines and
connections are tight and that the demolition and sorting
grab operates smoothly.
◊ Allow the engine of the excavator and the pumps to remain
in operation, even during breaks.
5.5 Prohibited use
5.5.1 Zwevend transport
WARNING!
- RISK OF FALLING OBJECTS
Falling objects can cause serious injury.
ØNever operate the demolition and sorting grab above the
cabin, other persons or other machines.
5.5.2 Unsafe surface
WARNING!
- RISK OF TIPPING
The excavator can tip over and cause injury and damge.
ØOnly operate the demolition and sorting grab when the
excavator is on a safe, stable surface.
5. Operation
5.5.3 Non-bearing, suspended ceilings
WARNING!
- RISK OF COLLAPSE
The excavator can crash down and cause injury and damage.
ØOnly operate the demolition and sorting grab when the
excavator is on a load-bearing ceiling.
5.5.4 Working position
WARNING!
- FALLING DEBRIS
Large pieces of falling debris can cause injury and damage.
ØNever begin demolition works from the bottom or the
middle of a structure.

2322 © 2022 Dehaco B.V. • Operation and maintenance manual DSG Demolition and Sorting grabs • No. DSG.2165.0001 • 31-01-2022
Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) • ✆ +31 (0)252 - 41 79 50 • [email protected] • www.dehaco.nl
5. Operation
5.5.5 Using the chain
WARNING!
- RISK OF TIPPING
The excavator can tip over and cause injury and damage.
ØOnly operate the demolition and sorting grab when the
excavator is on a safe, stable surface.
5.5.6 Moving the excavator
Never move the excavator sideways by placing the demolition and
sorting grab on the ground to lift the excavator. This can cause
severe damage to the demolition and sorting grab.
5.5.7 Moving the arm
Never move the excavator or arm while working with the
demolition and sortin grab.
5. Operation
5.5.8 Rotating the demolition and sortin grab
Never rotate the demolition and sorting grab while operating the
grab. This can cause severe damage to the demolition and sorting
grab.
5.5.9 Extending the bucket cylinder
Never extend the cylinder while operating the grab. This action
will make the demolition and sorting grab unusable.
5.5.10 Pulling
Never use the demolition and sorting grab to pull on support
beams, supports or walls. This could result in severe damage.
Moreover, the excavator could lose stability and tip over.
5.5.11 Lifting/transporting
Never use the demolition and sorting grab to lift or transport
material. The tool is not designed for this and such use may result
in severe damage.
5.5.12 Hammering
Never use the demolition and sorting grab to hammer on or
against the structure to be demolished. This can cause severe
damage to the demolition and sorting grab.
5.5.13 Pushing debris
Never use the demolition and sorting grab to push debris.
5.5.14 Abrupt movements
Never make sudden movements with the demolition and sorting
grab in an attempt to release when stuck in a construction.

2524 © 2022 Dehaco B.V. • Operation and maintenance manual DSG Demolition and Sorting grabs • No. DSG.2165.0001 • 31-01-2022
Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) • ✆ +31 (0)252 - 41 79 50 • [email protected] • www.dehaco.nl
5. Operation
5.5.15 Extreme cylinder positions
Ensure the cylinders of the excavator arm never reach their
extreme positions. If necessary, move the excavator to allow easy
operation of the demolition and sorting grab.
6. Maintenance
5.5.16 Under water use
Never use the demolition and sorting grab under water. Water
can severly damage both the demolition and sorting grab as well
as the hydraulic system of the excavator.
6. MAINTENANCE
Maintenance work must be performed by the excavator operator
regularly.
WARNING!
- DISCHARGE OF HOT HYDRAULIC OIL
The hydraulic system is under high pressure. If the hydraulic
connections loosen, the hydraulic oil will spray out under
high pressure. This can lead to serious injury.
ØSwitch the excavator and demolition and sorting grab o
immediately if a leak is detected.
ØRelease the pressure in the hydraulic system.
ØRepair any leaks before using the demolition and sorting
grab again.
WARNING!
- HOT COMPONENTS
The hydraulic cylinder, hoses, tubes and ttings become very
hot during operation. Contact with these components can cause
burns.
ØNever touch hot components.
ØIf works need to be completed on or near hot components,
wait for them to cool down rst.
WARNING!
- UNINTENTIONAL STARTING
Unintentional starting of the excavator/demolition and sorting
grab can lead to serious injury.
ØFollow the instructions to avoid unintentional starting.
WARNING!
- UNEXPECTED MOVEMENTS
Sudden movements by the excavator can cause injury
ØSecure the excavator to prevent unexpected movement.
Ø Follow the instructions from the excavator manufacturer.
WARNING!
- SERIOUS PHYSICAL INJURY
The shells of the demolition and sorting grab may close
unexpectedly and cause serious physical injury.
ØEnsure no one is present between the shells.
ATTENTION
- ENVIRONMENTAL CONTAMINATION BY HYDRAULIC OIL
Hydraulic oil is harmful to the environment. When hydraulic
oil is released (e.g. by leakage) the groundwater and soil may
become contaminated causing organisms to die.
ØCollect all spilled hydraulic oil to prevent environmental
contamination. For small amounts, use absorbent material
ØEnsure it does not make its way into the soil, groundwater
or water lines.
ØCollect the contaminated absorbent material in an airtight
container and seal it well.
ØContact a licensed waste disposal company.
ØRemove all contaminated materials in accordance with
current environmental regulations.

2726 © 2022 Dehaco B.V. • Operation and maintenance manual DSG Demolition and Sorting grabs • No. DSG.2165.0001 • 31-01-2022
Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) • ✆ +31 (0)252 - 41 79 50 • [email protected] • www.dehaco.nl
1
6. Maintenance 6. Maintenance
6.1 Daily maintenance
1) For maintenance work, always place the grab in open
position on a at and stable surface and ensure the
excavator cannot move.
2) When servicing the hydraulic system, the hydraulic hoses
should be disconnected. Prior to disconnecting the hoses,
ensure no pressure remains on the hoses. See the operating
instructions of the excavator for more information.
3) The grab must be lubricated once per every 8 operating
hours using the same type of grease specied for the
excavator.
4) When the interchangeable wear blades on the grab
shells have worn away to that extent that the grab can
no longer fully close, work must be discontinued and the
interchangeable wear blades must be changed or replaced.
(NOTE The interchangeable wear blades also serve as the
end stop for the cylinders.)
6.1.1 Lubrication schedule
6.1.2 Changing/replacing wear blades
1) Ensure the nut is installed with the conical side on the inside
of the shell.
2) Bolts must be tightened to the torque indicated on the table
on page 27.
1) Lubricating pivot points
1 = 1 x per 8 operating hours
2) Lubricating pivot points
1 = 1 x per 8 operating hours
3) Lubricating slewing ring
1 = 1 x per 8 operating hours
To ensure the wear blades remain securely fastened to the
shell during shock and tearing loads, it is recommended to
tack weld the interchangeable wear blade to the xed blade.
6.1.3 Torque
The table on this page provides a summary of the torque required for the nuts and bolts on the slewing ring, blades and other components
of the DSG demolition and sorting grab.
Bolt size Torque (Nm) Torque (kg•m) Torque (ft•lb) Comments
Bout 10,9 Bout 10,9
M8 40 Nm 4 kg•m 29 ft•lb
M10 80 Nm 8 kg•m 60 ft•lb
M12 130 Nm 13 kg•m 94 ft•lb
M12 x 1,25 110 Nm 11 kg•m 80 ft•lb Caution! Fine thread!
M14 200 Nm 20 kg•m 145 ft•lb
M16 300 Nm 30 kg•m 217 ft•lb
M20 600 Nm 60 kg•m 434 ft•lb
M24 1000 Nm 100 kg•m 723 ft•lb
M27 1500 Nm 150 kg•m 110 6 f t •l b
M30 2000 Nm 200 kg•m 1475 ft•lb
M36 3600 Nm 360 kg•m 2655 ft•lb
M39 4600 Nm 460 kg•m 3393 ft•lb

2928 © 2022 Dehaco B.V. • Operation and maintenance manual DSG Demolition and Sorting grabs • No. DSG.2165.0001 • 31-01-2022
Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) • ✆ +31 (0)252 - 41 79 50 • [email protected] • www.dehaco.nl
7. Troubleshooting7. Troubleshooting
7. TROUBLESHOOTING
7.1 The demolition and sorting
grab does not work
7.2 Insucient closing force
7.3 The rotate function does not work
Cause Solution By who?
Ensure the valve in the Open of Close pipe
is closed.Open the return valve. Operator
Broken connector blocking Open/Close
pipes. Replace the defective coupling components. Workshop or Dehaco/dealer service
technician
Electrical equipment in the system is faulty. Inspect the faulty electrical equipment and
repair if necessary. Workshop
The toggle switch is faulty. Inspect the toggle switch and replace if
necessary. Workshop
The magnet on the switch on valve is
damaged. Replace the magnet. Workshop
Cause Solution By who?
The pipes for Open abd Close are swapped. Connect the cables as required. Operator
The operating pressure is too low. Correct the operating pressure. Workshop or Dehaco/dealer service
technician
Cause Solution By who?
Rotary motor/gear unit/slewing ring/
rotation transmission defect.
Inspect the rotary motor/gear unit/slewing
ring/rotation transmission and replace the
defective parts.
Workshop or Dehaco/dealer service
technician
Cause Solution By who?
The oil level in the tank is too low. Check the oil level and top up if necessary. Operator or workshop
The pumping volume of the excavator is
too high; there is a constant amount of oil
spraying from the pressure reducing valve.
Check the speed of the excavator motor and
correct. Switch the pump on.
Dehaco service technician or an authorised
Dehaco dealer.
The pressure reducing valve is faulty or
there is a defect in the valve.
Fit a new pressure reducing manager or a
more accurate pressure relief valve.
Dehaco service technician or an authorised
Dehaco dealer.
7.4 The operating
temperature is too high
7.5 Oil leaks at hydraulic connections
7.6 Insucient lubrication
Cause Solution By who?
Cap nits are loose. Inspect the cap nuts and tighten. Operator
Hose connections are loose. Inspect the connections and tighten. Operator
Cause Solution By who?
Interval between lubrication is too long. Check lubrication and lubricate. Operator

3130 © 2022 Dehaco B.V. • Operation and maintenance manual DSG Demolition and Sorting grabs • No. DSG.2165.0001 • 31-01-2022
Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) • ✆ +31 (0)252 - 41 79 50 • [email protected] • www.dehaco.nl
9. Storage8. Repair
8. REPAIR
WARNING!
- RISK OF PERSONAL INJURY
Improper repair of the demolition and sorting grab can cause
serious injury and damage.
ØRepairs may only be carried out by Dehaco B.V. or an
authorised Dehaco dealer.
◊ For technical support, please contact Dehaco B.V. or a
Dehaco dealer in your area.
8.1 Repair service for the
demolition and sorting grab
ATTENTION
- MIXED HYDRAULIC OIL
Never mix mineral oil with non-mineral oil. Even small traces of
mineral oil mixed with non-mineral oil may result in damage to
both the demolition and sorting grab as well as the excavator.
Non-mineral oil loses its biodegradability.
ØUse only one type of hydraulic oil.
◊ Always indicate which hydraulic oil is used when sending the
demolition and sorting grab for repair.
9. STORAGE
9.1 Demolition and sorting grab
WARNING!
- RISK OF TIPPING
If the demolition and sorting grab tips over while stored,
this can lead to serious injury and property damage.
ØPreferably, position the demolition and sorting grab on
square wooden beams or a pallet. Ensure the horizontal
surface is level.
9.1.1 Procedure for storage
1) Open the shells of the demolition and sorting grab. The
demolition and sorting grab is more stable when it is stored
with the shells open. There is also less oil in the demolition
and sorting grab when the shells are open. As a result, less
oil loss and less oil in the environment will occur should an
unexpected leak be detected.
2) Remove the demolition and sorting grab from the excavator.
3) Store the demolition and sorting grab in a dry, well ventilated
area.
4) If the only possibility for storage is in the open, the
demolition and sorting grab must be protected from the
weather. For example, by using plastic foil or protective
covers.
9.2 Grease cartridges
WARNING!
- FIRE AND HARMFUL GASES
Burning grease releases harmful gases.
ØNever store grease cartridges near ammable or self-
igniting substances.
ØDo not expose grease cartridges to direct sunlight.
◊ Store grease cartridges in a cool, well-ventilated area.

AC
B
D
3332 © 2022 Dehaco B.V. • Operation and maintenance manual DSG Demolition and Sorting grabs • No. DSG.2165.0001 • 31-01-2022
Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) • ✆ +31 (0)252 - 41 79 50 • [email protected] • www.dehaco.nl
10. Disposal
10. DISPOSAL
ATTENTION
- ENVIRONMENTAL DAMAGE BY CONSUMABLES
Hydraulic oil and grease are harmful to the environment and
may not penetrate the soil, nor end up in the water table or
water supplies.
ØEnsure no oil or grease run o.
ØDispose of oil and grease according to applicable
environmental regulations.
10.1 Demolition and sorting grab
◊ Remove the demolition and sorting grab from the excavator.
◊ Remove the adapter plate.
◊ Remove the hydraulic hoses from the demolition and sorting
grab.
◊ Dispose of the demolition and sorting grab according to
applicable regulations or consult a certied specialist
company.
10.2 Hydraulic hoses
◊ Drain and collect the oil from the hydraulic hoses.
◊ Dispose of the hydraulic hoses in accordance with applicable
regulations and avoid risks to the environment.
10.3 Hydraulic oil
◊ Collect any spilled hydraulic oil.
◊ Dispose of it in accordance with environmental regulations.
10.4 Grease and grease cartridges
◊ Dispose of grease and partially empty grease cartridges in
accordance with applicable regulations.
◊ Only completely empty grease cartridges can be recycled.
11. Technical specications F-series
11. TECHNICAL SPECIFICATIONS
Hydraulic demolition and sorting grabs
without rotation
(1) Weights only apply to standard carriers.
Each deviation must be agreed upon with Dehaco and/or manufacturer of the carrier prior to assembly.
(2) Weight excluding top bracket and hoses.
DSG70-F DSG100-F DSG150-F DSG250-F DSG400-F DSG450-F DSG452-F DSG502-F
DSG603-F
Technical specs
Excavator weight (1)
t
0,7-1,2 1-2 1,2-3 2,5-4 4-6 5-9 6-11 7-12 10-16
Weight (standard) (2)
kg
50 65 100 200 280 330 340 500 600
Cylinders 1 1 1 1 1 1 1 1 1
Operating pressure
bar
300 300 300 300 300 300 300 350 350
Oil flow
l/min
15 20 25 35 40 50 50 90 100
Shell width A
mm
300 350 450 500 600 700 700 600 800
Height opened B
mm
420 450 550 650 800 820 820 745 950
Width opened C
mm
600 770 800 1.160 1.400 1.500 1.500 1.700 1.750
Height closed D
mm
600 540 540 695 840 875 875 925 955
Width closed E
mm
430 545 545 785 850 890 885 1.055 1.070
Capacity
l
30 40 70 100 150 200 200 300 400
Closing force
kN
6 7 15 20 23 24 24 30 35
Article number 1210.0038 1210.0069 1210.0063 1210.0040 1210.0015 1210.0041 1210.0070 1210.0042 1210.0071
DSG903-F DSG1003-F DSG1102-F DSG1202-F DSG1402-F DSG1802-F DSG1900-F DSG2500-F DSG2700-F DSG3000-F
Technical specs
Excavator weight (1)
t
13-20 16-20 16-25 17-28 20-28 24-35 25-38 28-40 30-50 35-50
Weight (standard) (2)
kg
785 800 1.100 1.200 1.300 1.450 1.500 1.900 2.100 2.400
Cylinders 2 2 2 2 2 2 2 2 2 2
Operating pressure
bar
350 350 350 350 350 350 350 350 350 350
Oil flow
l/min
120 120 150 160 170 170 180 200 200 200
Shell width A
mm
900 1.000 900 1.000 1.200 1.200 1.200 1.200 1.360 1.500
Height opened B
mm
1.100 1.100 1.200 1.200 1.200 1.250 1.020 1.270 1.270 1.300
Width opened C
mm
1.950 1.950 2.100 2.100 2.100 2.400 2.250 2.250 2.250 2.450
Height closed D
mm
1.105 1.105 1.240 1.230 1.230 1.260 1.270 1.380 1.380 1.485
Width closed E
mm
1.170 1.170 1.300 1.300 1.300 1.350 1.340 1.370 1.370 1.475
Capacity
l
600 700 750 800 850 950 900 1.000 1.100 1.300
Closing force
kN
46 46 55 68 68 80 80 90 90 90
Article number v 1210.0073 1210.0074 1210.0075 1210.0076 1210.0077 1210.0078 1210.0079 1210.0110 1210.0111

3534 © 2022 Dehaco B.V. • Operation and maintenance manual DSG Demolition and Sorting grabs • No. DSG.2165.0001 • 31-01-2022
Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) • ✆ +31 (0)252 - 41 79 50 • [email protected] • www.dehaco.nl
11. Technical specications R-series 11. Technical specications R-series
11. TECHNICAL SPECIFICATIONS
Hydraulic demolition and sorting grabs
with rotation
(1) Weights only apply to standard carriers.
Each deviation must be agreed upon with Dehaco and/or manufacturer of the carrier prior to assembly.
(2) Net weight including top bracket and replaceable cutting edges (approximate).
AC
D
E
DSG70-R DSG100-R DSG150-R DSG250-R DSG300-R DSG400-R DSG450-R DSG452-R DSG502-R DSG603-R DSG803-R DSG804-R DSG903-R DSG904-R
DSG1003-R DSG1004-R DSG1102-R DSG1104-R
Technische specicaties
Excavator weight (1)
t
0,7-1,2 1-2 1,5-2 2,5-5 2,5-5 4-6 5-8 6-11 7-12 10-16 12-20 12-20 13-20 13-20 16-20 16-20 16-25 16-25
Operational weight (2)
kg
75 90 140 240 280 350 400 450 600 775 935 925 985 960 995 995 1.400 1.350
Cylinders 111111111122222222
Rotationmotors 111111111222222222
Operating pressure
bar
300 300 300 300 300 300 300 320 350 350 350 350 350 350 350 350 350 350
Operating pressure rotation
bar
170-210 170-210 170-210 170-210 170-210 190-210 190-210 190-210 190-210 190-210 190-210 190-210 190-210 190-210 190-210 190-210 190-210 190-210
Oil flow
l/min
15 20 25 35 35 40 50 70 90 100 120 120 120 120 120 120 150 150
Oil flow rotation
l/min
5 5 10 10 10 12 12 15 15 25 25 25 25 25 25 25 35 35
Shell width A
mm
300 350 450 500 500 600 700 700 600 800 800 800 900 920 1.000 1.000 900 920
Height opened B
mm
595 610 650 710 770 880 900 990 1.050 1.140 1.245 1.215 1.245 1.310 1.245 1.240 1.465 1.410
Width opened C
mm
600 770 800 1.160 1.160 1.400 1.500 1.550 1.700 1.750 1.950 1.950 1.950 1.950 1.950 1.950 2.100 2.100
Height closed D
mm
600 670 670 810 850 1.010 1.055 1.156 1.235 1.318 1.465 1.440 1.465 1.540 1.465 1.470 1.665 1.600
Width closed E
mm
430 500 545 785 780 850 890 885 1.055 1.070 1.170 1.180 1.170 1.180 1.175 1.175 1.300 1.300
Capacity
l
30 40 70 100 100 150 200 200 300 400 500 500 600 600 700 700 750 750
Closing force
kN
6 7 15 20 20 23 24 24 30 35 46 46 46 46 46 46 55 55
Article number 1210.0018 1210.0001 1210.0006 1210.0010 1210.0088 1210.0014 1210.0016 1210.0062 1210.0037 1210.0055 1210.0057 1210.0086 1210.0058 1210.0087 1210.0059 1210.0082 1210.0025 1210.0083
DSG1202-R DSG1204-R DSG1402-R DSG1404-R DSG1702-R DSG1802-R DSG1900-R DSG2500-R DSG2700-R DSG3000-R DSG4000-R DSG4500-R DSG5003-R DSG8000-R DSG13000-R
Technische specicaties
Excavator weight (1)
t
17-28 17-28 20-28 20-28 23-30 24-35 25-38 28-50 30-50 35-50 40-65 45-80 45-100 70-120 100-200
Operational weight (2)
kg
1.500 1.415 1.600 1.500 1.750 1.800 1.900 2.500 2.700 3.000 3.910 4.200 5.040 7.250 13.000
Cylinders 22222222222222 2
Rotation motors 2 2 2 2 2 2 2 2 2 2 2 2 4 4 4
Operating pressure
bar
350 350 350 350 350 350 350 350 350 350 350 350 350 350 350
Operating pressure rotation
bar
190-210 190-210 190-210 190-210 190-210 190-210 190-210 190-210 190-210 190-210 190-210 190-210 190-210 190-250 190-250
Oil flow
l/min
160 160 160 160 170 170 180 200 200 200 250 250 250 320 320
Oil flow rotation
l/min
35 35 35 35 35 35 35 35 35 35 40 50 60 70 100
Shell width A
mm
1.000 1.000 1.200 1.200 1.200 1.200 1.200 1.200 1.360 1.500 1.500 1.500 1.500 1.800 1.800
Height opened B
mm
1.470 1.410 1.470 1.410 1.430 1.425 1.450 1.635 1.635 1.635 1.800 1.800 1.880 2.250 3.135
Width opened C
mm
2.100 2.100 2.100 2.100 2.250 2.400 2.250 2.250 2.250 2.450 2.850 2.850 3.000 3.800 4.400
Height closed D
mm
1.660 1.600 1.660 1.600 1.695 1.690 1.700 1.830 1.830 1.935 2.050 2.090 2.200 2.525 3.420
Width closed E
mm
1.300 1.300 1.300 1.300 1.340 1.350 1.340 1.370 1.370 1.475 1.755 1.755 1.890 2.400 2.700
Capacity
l
800 800 850 850 900 950 900 1.000 1.100 1.300 1.500 1.500 1.600 3.600 4.600
Closing force
kN
68 68 68 68 80 80 80 90 90 90 110 110 130 150 180
Article number 1210.0026 1210.0084 1210.0027 1210.0085 1210.0068 1210.0067 1210.0009 1210.0011 1210.0012 1210.0013 1210.0048 1210.0089 1210.0065 1210.0081 1210.0029

cmd + shift + klik
36 Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) • ✆ +31 (0)252 - 41 79 50 • [email protected] • www.dehaco.nl
Dehaco B.V.
Headquarters
Kruisbaak 25, 2165 AJ
Lisserbroek, The Netherlands
Raamsdonksveer
Steurweg 1, 4941 VP
Raamsdonksveer, The Netherlands
T
E
www.dehaco.nl
+31 (0) 252 41 79 50
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