Hydraram HDG Series User manual

Hydraram B.V.
Meander 7, 9231DB, Surhuisterveen Holland
Tel : [phone] - [email protected]
www.hydraram.com
05-2021 Certified company
Operation and maintenance manual
DEMOLITION GRAB - HDG SERIES

Table of contents
1. Introduction 1
1.1. Purpose of the user and maintenance instruction manual 1
1.2. Safekeeping of the instruction manual 2
1.3. Updating the instruction manual 2
1.4. Who is this manual intended for? 2
1.5. Glossary and symbols 2
1.6. Copyright 4
2. General information 5
2.1. Manufacturer’s identification data 5
2.2. Attachment identification data and plate 5
2.3. Set-up procedures to be carried out by customer technician 5
2.4. General warranty conditions 6
3. Safety 8
3.1.General precautions 8
3.2.Intended use 10
3.3.Unforeseen improper use 10
3.4.Safety indications relating to use of the attachment 11
3.4.1. Safety procedure prior to initial use of the attachment 11
3.5.Safety indications relating to maintenance of the attachment 12
3.6.Safety pictograms 14
3.7. Lighting 14
4. Description of the attachment 14
4.1.Description of the attachment 14
4.2. Technical specifications 15
5. Installation 17
5.1.Moving and handling 17
5.2. Storage 18
5.3. Hydraulic fluids 18
5.4. Mounting the attachment on the operating machine 19
5.4.1. Making the hydraulic connections 19
5.4.2. Connecting the hydraulic hoses for the ‘Open’ and ‘Close’ functions 20
5.4.3. Connecting the hydraulic hoses for the ‘Rotate’ function 20
5.5. Detaching the demolition and sorting grab from the excavator 20
5.5.1. Mechanical detachment 21
5.6. Detaching the adapter plate 21
6. Operation 21
6.1. Pressure and temperature monitoring 21
6.2. Ambient temperature requirements 22

6.2.1. High ambient temperature 22
6.2.2. Low ambient temperature 22
6.3. Disposal 23
6.3.1. Demolition and sorting grab 23
6.3.2. Hydraulic hoses 23
6.3.3. Hydraulic oil 23
6.3.4. Grease and grease cartridges 23
6.4. Dismantling 23
7. Maintenance 24
7.1. De-energising the attachment 24
7.2. General information 24
7.3. Regular maintenance 24
7.3.1. Changing or replacing wear blades 25
7.3.2. Lubrication schedule 26
7.4. Torque 27
7.5. Troubleshooting 28

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1. Introduction
1.1. Purpose of the user and maintenance instruction manual
This manual forms an integral part of the attachment and is intended to provide all the information
necessary to:
• Inform operators correctly regarding safety issues;
• Handle, pack and unpack the attachment safely;
• Install the attachment safely;
• Ensure users are fully aware of its operating features and limits;
• Ensure the attachment is used correctly and safely;
• Ensure maintenance operations are carried out correctly and safely;
• Dismantle the attachment safely and in accordance with the standards and regulations regarding
health and safety in the workplace and environmental protection.
 IMPORTANT!
Under current law, the personnel responsible for using and operating this attachment are obliged
to read the contents of this document carefully and to ensure the operators and maintenance
technicians have read the parts relating to their specific duties. The time spent doing this this will
ensure correct and safe operation of the attachment.
This document assumes that the applicable laws on safety and occupational hygiene are adhered to where
the attachment is to be used. The instructions, drawings and documentation contained in this manual are of
a confidential, technical nature and may not be reproduced in whole or in part.
This manual is subject to the following limitations:
• It may never take the place of an adequately experienced user;
• For particularly demanding operations, the manual can only provide a summary of the main steps.
The manual should be regarded as an integral part of the attachment and must be kept for future reference
until the attachment is dismantled for disposal. The manual must be stored correctly and kept where it may
be readily consulted when using the attachment with the operating machine.
The company Hydraram may not be held liable in the following cases:
• Improper use of the attachment;
• Use contrary to specific national law;
• Incorrect installation (in the case where the attachment was installed by unauthorised personnel);
• Power supply defects;
• Serious failures to perform the required maintenance;
• Unauthorised modifications and operations;
• Use of replacement parts or materials not specific to the model;
• A total or partial failure to follow the instructions provided;
• Use of the attachment with an incompatible machine;
• Exceptional events.

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1.2. Safekeeping of the instruction manual
The manual must be stored carefully and kept together with the attachment whenever the latter changes
hands throughout its working life. The manual will last longer if it is handled carefully with clean hands and
not placed on dirty surfaces.
No parts of the manual should removed, torn out or modified arbitrarily. This manual should be stored in
a cool, dry place near to the attachment it refers to. The manufacturer can supply additional copies of the
manual upon request.
1.3. Updating the instruction manual
The manufacturer reserves the right to change the design of, and make improvements to, the attachment
without notifying customers and without updating manuals that have already been delivered to the user.
Moreover, if the manufacturer makes changes to the attachment already in use at the customer’s premises
that require changes to one or more chapters of the manual, the manufacturer shall be responsible for
sending the manual holder the chapters aected by the change, together with a copy of the new manual
revision list.
1.4. Who is this manual intended for?
This manual is intended for: Installation personnel, Operators and Technicians qualified to carry out
maintenance on the attachment.
 OPERATOR refers to the person assigned to operate, adjust, clean and perform regular maintenance
on the attachment.
QUALIFIED PERSONNEL or QUALIFIED OPERATOR, refers to those persons who have attended
specialisation and training courses etc. and who have experience in the installation, operation and
maintenance, repair or transport of the attachment.
 EXPOSED PERSON refers to any person located inside an area inside and/or near an operating
machine where their presence may be hazardous to their safety, health or well-being.
The attachment is intended for industrial use and, thus, professional and not general use. As a result, it
may only be operated by qualified persons and persons who specifically:
• are adults;
• are physically and mentally able to perform work of particular technical diculty;
• have been adequately instructed in the use and maintenance of the attachment;
• have been judged suitable by the employer to perform the work entrusted to them;
• are capable of understanding and interpreting the manual and the safety instructions;
• are familiar with the emergency procedures and how to implement them;
• are able to operate the specific type of attachment;
• are familiar with the regulations in force;
• have understood the operating procedures defined by the manufacturer of the attachment.
1.5. Glossary and symbols
This section defines the abbreviations used and the meaning of the symbols used to indicate the operator
qualification level and the status of the attachment. Their use allows for information regarding the correct
and safe use of the attachment to be communicated quickly and clearly.

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OPERATOR AREA
The area where the operator must work during
normal use of the attachment.
DANGER ZONE
An area inside and/or near the attachment where
the presence of an exposed person is a risk to the
health of that person.
EXPOSED PERSON
Any person wholly or partially located inside a
danger zone.
MAN-OPERATING MACHINE INTERACTION:
Any situation where an operator interacts with the
attachment during any of the operational phases at
any time during its life cycle.
OPERATOR QUALIFICATION LEVEL
Minimum skill level that the operator must have to
perform the operation described.
NUMBER OF OPERATORS
The number of operators required to perform the
operation described. This number is derived from a
careful analysis by the manufacturer, meaning that
the presence of a dierent number of personnel
could prevent the expected result from being
achieved or expose the personnel to danger.
STATUS OF THE OPERATING MACHINE
The status of the operating machine includes
its operating mode, for example, automatic, jog,
stopped, etc., the condition of the safety devices
on the operating machine, such as safety devices
enabled, safety devices disabled, emergency stop
button pressed, power source insulation type, etc.
RESIDUAL HAZARD
A hazard that it has not been possible to eliminate
or reduce suciently during the design stage, and
against which the existing safety device are not
(or are not completely) eective. Information on
the presence of such hazards is provided in the
manual, as well as instructions and precautions on
how to avoid it.
SAFETY COMPONENT
This is a component used to guarantee a given
safety function and whose failure or poor operation
may have a negative impact on the safety and/
or health of exposed persons: its specific function
is to guarantee safety and is ancillary to the main
function of the machine.
P.P.E.
Acronym for Personal Protective Equipment.
 WARNING!
Descriptions preceded by this symbol contain very important information/instructions regarding
safety. Failure to observe them may:
• Endanger the well-being of the operators;
• Render the warranty null and void;
• Result in the manufacturer not accepting liability.
IMPORTANT!
This symbol is used to indicate particularly important information regarding the use of the
attachment that the operator must make sure that they have read and understood thoroughly.

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1.6. Copyright
The copyright of this manual is the property of Hydraram. This manual is intended for use by operating and
maintenance personnel. It contains instructions and technical diagrams that may not be copied, in whole or
in part, distributed or examined by unauthorised persons for competitive purposes or divulged to any other
third party.

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2. General information
2.1. Manufacturer’s identification data
Hydraram B.V.
Meander 7 9231DB Surhuisterveen - The Netherlands
AFTER-SALES SERVICE / SPARE PARTS / CALL CENTRE
Tel: [phone] - [email protected]
www.hydraram.com
2.2. Attachment identification data and plate
Each attachment is identified by a CE plate indelibly marked with all the relevant machine information
Always provide this information when contacting Hydraram or the customer service centre. The plate
is secured to the attachment in a protected position where it is easy to read. This position may vary
depending on the model.
2.3. Set-up procedures to be carried out by customer technician
Except where otherwise stipulated in the contract, the customer shall be responsible for:
• Preparing the working environment/area and operating equipment in conformity with the legally
applicable specific safety regulations in the country where the attachment is to be used;
• Checking that the attachment is coupled to the operating machine in compliance with the legally
applicable specific safety regulations in the country where the attachment is to be used;
• Providing the hydraulic supply system for the attachment, in conformity with the regulations
applicable in the country of use and the instructions in this manual.
 WARNING!
It is the specific responsibility of the customer/user to integrate these instructions into the system/
plant user and maintenance manual and to provide any additional information the operator may
require.

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2.4. General warranty conditions
Hydaram guarantees that all products are free from material or manufacturing defects. Under the terms of
this warranty, Hydraram’s responsibilities are limited to the repair or replacement with a similar part at the
company’s plant, on condition that the product is returned within 8 days of the date on which the defect is
detected, and provided the defect is correctly identified by photographs or the product is returned with all
shipping expenses prepaid.
The company will replace or repair, at its own discretion, any part that, after examination, is determined
to demonstrate material or manufacturing defects. In any event, Hydraram’s responsibility shall be limited
to the original purchase price of the product; any costs incurred in relation to the necessary inspections
or report generation are excluded. No repairs will be carried out on site; the warranty applies exclusively
when the product is returned to the company.
Any claim made under warranty will only be taken into consideration once a written appeal is made to the
dealer or manufacturer. This must be done directly after the damage or fault occurs and at least within 24
hours of any irregularities and problems arising.
All claims under conditions of the warranty must contain the following data; the type of machine the
product has been mounted on, the serial number of the grab, the record of the defective part(s) and a
description of the fault, photographs, copy of the delivery papers and invoice and a copy of the invoice of
the piece of equipment concerned.
This warranty replaces any other warranties, expressed or implied, including, but not limited to, guarantees
of marketability and suitability, irrespective of purpose; furthermore, under the terms of this warranty
Hydrarm’s obligations and responsibilities shall not include any shipping or other expenses, i.e. installation
costs or liability for any direct, indirect or resultant damages or for delays caused by any such defect.
This warranty applies exclusively to new products manufactured by Hydraram. Products manufactured by
third parties are covered exclusively by warranties oered to Hydraram by the respective suppliers and will
be subjected to any inspections or checks as requested by such parties.
Products manufactured or welded by Hydraram as standard units are guaranteed for twelve (12) months
from the delivery date. This guarantee period is completely independent of the eective date the product
was put into operation.
Minor repairs can be carried out in consultation with the dealer; the necessary parts which fall under the
warranty, will be delivered without charge. For larger repairs the grab should be sent to your dealer or
manufacturer for repairs or modifications. The work and necessary parts are free of charge. However,
transport costs and call-out charges to and from your dealer or manufacturer are not covered.
The manufacturer is not liable for consequential loss caused by a defective demolition and sorting grab
(consequential loss to excavators, consequential loss due to a stationary excavator or the suspending of
work activity).
If the customer tampers with the product or attempts to disassemble in any other location than the
supplier’s premises or repair workshop, and/or without notifying the manufacturer in advance, this warranty
shall be considered null and void. Hydraulic cylinders or components returned under the guarantee must
not be disassembled and must be returned intact to Hydraram. Any welding, modifications or repairs to

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the attachment must be authorised in writing in advance by Hydraram; any service operations performed
without such authorisation shall result in this warranty being considered null and void. Hydraram may not
be held liable for any costs/charges deriving from the customer’s failure to meet these warranty conditions.
Hydraram reserves the right to make changes or modifications to the accessories, which, in the company’s
reasonable opinion, may improve the performance and eciency of the machine or improve production
techniques, at any time. Hydraram is under no obligation to implement such changes or modifications
retroactively on any machines that are already in use. Any operations that are expressly forbidden, either
verbally or in any written document, or repairs or assembly procedures that are not recommended or
authorised by Hydraram shall result in the warranty being considered null and void.
The warranty does not include any parts that are subject to normal wear and tear, or any that are broken
or damaged due to improper use of the attachments supplied by Hydraram. In this case, the customer
shall arrange for delivery and collection at our factory at their own expense; if the customer requests
repairs at their own premises (assuming this is possible), they shall be required to pay for the seller’s travel
expenses. If, during the warranty period and as a result of customer negligence or any other factor out of
the control of Hydraram, the company is unable to intervene promptly in the aftermath of breakdown or
fault condition, the customer shall be responsible for any further deterioration or damages resulting from
the continued use of the Hydraram products. Any such additional damage is not included in the terms of
the warranty.
The company Hydraram may not be held liable for any expenses for repairs performed by, or requested
by the customer in workshops other than the authorised structures or in the event where such activities
were not authorised in advance. The customer may not claim compensation for any damages deriving
from machine downtime during the warranty period.
IMPORTANT!
This warranty is valid only if the product has been entirely paid for in conformity with the required
supply conditions and is returned within 2 weeks from the date of purchase. Failure to pay for the
products within the agreed terms shall result in the warranty being considered null and void, even if
the goods in question are entirely paid for at a later date.
2.5. Exclusions from Warranty
• Damage caused by faulty assembly of a machine and or the hydraulic system, improper
maintenance without expertise and transport damage.
• Defects resulting from improper repairs and/or maintenance including that carried out by an
unauthorised third party.
• Defects arising from neglect or improper execution of preventive maintenance procedures e.g.
regular lubrication or greasing.
• Defects to parts which are subject to normal wear like blades.
• Consequential loss caused by failure to replace normal wearing parts in time.
• If defective or worn down parts are replaced by non-original parts, the entire warranty and liability
will cease to apply.

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3. Safety
3.1.General precautions
Operator safety is one of the manufacturer’s main concerns. When designing and manufacturing a new
attachment, we attempt to foresee all possible danger situations and, naturally, to adopt suitable safety
measures, paying particular attention to operations that are especially hazardous. The manufacturer may
not be held liable for the consequences of any failure to adhere to the safety and accident prevention
instructions set out in this manual.
 IMPORTANT!
Before using the attachment, operators must read the instructions contained in this manual carefully
read and ensure they adhere to the instructions it contains.
The manufacturer has fitted the attachment with all the protection and safety devices considered
necessary and, in addition, has provided sucient information for its safe and correct use. To this end,
wherever necessary, each chapter contains the following information regarding every possible man-
attachment interaction:
• Minimum operator qualifications required;
• Number of operators necessary;
• Status of the attachment;
• Residual risks;
• Necessary or recommended personal protective equipment;
• Prevention of human errors;
• Prohibitions/obligations regarding reasonably foreseeable incorrect behaviour.
 WARNING!
This information must be adhered to scrupulously.
The user may supplement the manufacturer’s information with additional instructions, provided that they
do not conflict with that set out in the manual, in order to contribute to the safe use of the attachment. All
personnel assigned to work on the attachment must ensure they are wearing appropriate clothing.
• Avoid the use of clothing that could become entangled with parts of the attachment;
• Avoid wearing ties or other loose items of clothing;
• Avoid wearing rings or bracelets that could cause hands to be trapped in the components of the
attachment.
Wherever necessary, the manual provides additional recommendations for preventive measures to taken
by the user, personal protective equipment, helpful information for avoiding human errors and instructions
designed to prevent reasonably foreseeable prohibited behaviours.It is, however, extremely important to
adhere scrupulously to the following instructions:
• It is strictly forbidden to operate the attachment with the fixed protection panels removed;

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• It is strictly forbidden to inhibit or bypass the safety devices installed on the attachment;
• Washing must be performed with the hydraulic separation devices disconnected;
• Do not modify any parts of the attachment;
• The manufacturer may not be held responsible for malfunctions caused by failure to respect the
above instructions. In the event it is necessary to modify the attachment, we strongly recommend
contacting the manufacturer directly.
 IMPORTANT!
The manufacturer may not be held liable for personal injury or damage caused by the attachment in
the case of:
• Use of the attachment by inadequately trained personnel;
• Improper use of the attachment;
• Defects in the hydraulic power supply;
• Incorrect installation;
• Lack of the required maintenance;
• Unauthorized service or modifications;
• Use of non-original or unsuitable spare parts;
• Total or partial failure to follow the instructions;
• Use contrary to specific national law;
• Disasters or exceptional events.
Control and checks
Checks must be performed by an expert; they must be visual and functional, with the purpose of
guaranteeing the safety of the attachment. They include:
• A check of all the load-bearing structures, which must be free from cracks, breakages, damage,
deformation, corrosion, wear or alteration with respect to their original specifications;
• A check of all the mechanical components;
• A check of all the safety devices installed on the attachment;
• A check of all connections with pins and screws;
• A functional check of the attachment;
• A check of the status of the attachment;
• A check to ensure that the hydraulic system is airtight and that it operates correctly.
 WARNING!
If anomalies are found, they must be eliminated before putting the attachment back into operation.
If the person performing the check finds any dangerous cracks or faults, they must notify the manufacturer
of the attachment immediately. In the event of a malfunction, stop using the attachment immediately and
carry out the appropriate checks and/or repairs.
Make sure that there are no objects between the parts of the attachment. After any maintenance work,
check that there are no objects remaining between moving parts.

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To guarantee maximum safety when transporting the attachment, it is FORBIDDEN:
• To tamper with any part of the attachment;
• To leave moving parts unattended;
• To use the attachment when it is not working at 100% eciency;
• To modify the attachment with respect to its intended use without explicit authorisation from the
manufacturer or without assuming full liability as per current legislation;
• To attempt to move the moving parts manually in the absence of power.
3.2.Intended use
The attachment described in this manual was designed to be mounted and used on earthmoving
machines of compatible weight specified in section 4.2. The dimensions and consistency of the material to
be processed must be compatible with the technical specifications of the equipment specified in section
4.2. This attachment is intended exclusively for professional use in following ways:
• Demolition of timber structures
• Demolition of masonry
• Sorting
• Loading work
3.3.Unforeseen improper use
It is strictly prohibited for anyone to use the attachment for any purpose other than that expressly permitted
and documented. Any improper use of the latter will absolve the manufacturer of all and any damage to
property and persons and render any guarantees null and void. The attachment must always be used in
the manner and at the times and places required by good practice and in conformity with the applicable
legislation, even if there are no laws regulating the sector in the country of use.
Specifically, the attachment must not be used:
• Any other purpose not mentioned in this manual;
• In an explosive or corrosive atmosphere or where there are high concentrations of dust or oily
substances suspended in the air;
• In an atmosphere where there is a risk of fire;
• With its safety devices disabled or not working.
• To lift or transport persons or animals.
• To pick up heavy loads which exceed the maximum allowance of lifting power.
• To lift or extract parts stuck in the ground.
• To reach elevated positions by climbing onto the equipment.
• To pull, push from the front or the side, strike or impact structures to be demolished.
• As a support point for moving the operating machine.
• Submerged underwater, as that can damage the components of the grab and the hydraulic system.
 WARNING!
The arm must be moved safely, with slow, accurate movements. Avoid abrupt movements.

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3.4.Safety indications relating to use of the attachment
Overhead working may result in falling debris or blocks of material. Make sure that
the machine the attachment is installed on has the necessary protections for performing
this type of work and that the cab has falling object protective structures (FOPS).
3.4.1. Safety procedure prior to initial use of the attachment
Before taking the machine into operation and to ensure the good functioning of the machine, it is important
that the following points are checked and correspond to the technical specifications as shown on the
information plate and in the manual:
• The type and weight of the sorting grab must conform to weight and machine class of the intended
excavator.
• The oil flow and the pressure for rotating the selector grab should be checked and adjusted.
• The return pressure of the rotating oil at a continuous level may be at a maximum of 25 bar, and
only briefly (maximum of 10% of the working time) at 100 bar.
• The oil flow and pressure of the pinching (opening and closing) of the sorting grab needs to be
controlled and adjusted.
• Check if the hydraulic quick release hitch is in good order and screwed on firmly.
• Before operating the attachment, the
operator must read this manual carefully and
have thorough knowledge of the operating
machine’s technical specifications and
controls.
• It is recommended that the operator be
trained to make best use of the attachment.
Unauthorized and/or unqualified personnel
may not use the attachment.
• Do not approach to within 20 metres of the
range of action of an operating machine
when working with an attachment.
• Before starting work with the attachment,
warn any persons in its vicinity.
• Wear personal protective equipment
whenever the attachment is in use.
• The attachment may only be operated
by a qualified operator who has read and
understood the contents of this manual.
• Do not allow unauthorized personnel to
operate the attachment or perform any type
of maintenance on it.
• The operator must quickly release his/
her grip on the attachment in the event of
danger.
• Do not use the attachment if it is not working
properly.
• The attachment may only be used when it is
installed on the operating machine using the
upper bracket and the pins provided.
• Make sure that the floor can support the load
of the operating machine.
• Make sure in advance that the work area
contains no pipes with pressurised gas
or fluids that could be damaged during
demolition: risk of explosion.
• Ensure the operating machine remains at
a distance of at least 10 metres from live,
overhead electrical lines.
• To avoid generating and spreading dust
while working, it can be necessary to
dampen the work area with water.
• In the event of a malfunction of the
attachment or damage to its components,
contact the maintenance manager without
attempting to repair it.
• Do not remove the safety devices or
protective guards.
• Do not rotate the machinery above people,
machines nor vehicles.

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• Check if the ball valves and valves are in the correct position.
• Check if the connecting pins between the excavator and the sorting grab are well secured, as well
as the wedge and the security pin of the quick release hitch system.
• Ensure that the hoses have the correct length and are at no risk of interfering with any of the moving
parts. Make sure they cannot wear or damage from contact with the grab or material that is moved
by the grab.
3.5.Safety indications relating to maintenance of the attachment
• Maintenance must only be performed by qualified personnel. Unauthorized and/or unqualified
personnel may not adjust or repair the attachment.
• Use the most suitable tools for the tasks required.
• All adjustments, maintenance, repair or cleaning must be performed while the operating machine’s
engine is o, the attachment must be stably supported on the ground and there must be no residual
hydraulic pressure. Any residual hydraulic pressure must be released by opening and closing
the attachment several times while the engine is o and while depressurising the oil tank. All
maintenance operations must be marked on the card in the cabin.
• When cleaning, assembling, disassembling, performing maintenance and transporting, ensure that
the attachment is perfectly stable and lock it with the pins provided to prevent it rotating (if present).
All moving parts must be secured by external constraints (such as slings or supports).
• All service operations on the rotation slew ring must be performed by a specialized technician
equipped with a torque wrench for tightening the screws.
• For the hydraulic connections, only use hydraulic hoses and fittings that conform to the SAEJ517 or
DIN20066 standards for the specified pressures. Failure to observe the above could compromise
the safety of the attachment.
• Always check the hoses are intact and that they have not been damaged in any way. If necessary,
ensure they are replaced immediately. Search for leaks using small pieces of paper or cardboard
and never with fingers to avoid injuries to the skin due by high pressure oil.
• The oil can reach very high temperatures. Before performing any service on external surfaces, wait
for them to completely cool.
• Never perform hasty or makeshift repairs that could compromise the correct operation of the
attachment. If in doubt, always request service by specialized personnel.
• It is forbidden to perform checks and/or replace parts during operation.
• All checks and maintenance that require the removal of the safety protections shall be performed
entirely at the user’s risk. Therefore, we recommend that such operations be performed exclusively
by specialised and authorised technicians.
• In the case of operations or repairs that need to be performed in positions that are not directly
accessible from the ground, use ladders or lifting devices that are safe and that conform to national
safety regulations.
• In the event of repairs near or below the attachment, make sure that there are no moving parts
that can start working and that parts that are unstable by nature are not positioned on or near the
attachment; always block them using adequate tools.
• Unless expressly specified by this manual, do not repair or adjust the attachment (or parts of it)
during operation, in order to avoid being hooked by moving parts.
• Wear personal protective equipment whenever the attachment is in use, or when working in its
vicinity.
• Only use original spare parts to replace worn parts.

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• Do not make any adjustments or changes that the manufacturer has not previously agreed to and
approved in writing.
• The grab must be lubricated once every 8 operating hours with the same lubricant recommended
for the excavator. For the position of the grease nipples and frequency of lubrication, see the
schedule on page 26.
• When the cutting blades of the grab shells are worn down to such a degree that the grab can no
longer close fully, all work should be suspended immediately and the replaceable wear blades must
be changed or replaced since neglect or excessive wear can lead to damage.
• Make sure the nameplate of the machine is present and legible before and after every use. Replace
any damaged nameplates or order new ones using the parts list.
 WARNING!
• These safety standards supplement and do not replace current local safety standards.
• Any tampering by the user shall absolve the manufacturer of all and any liability and shall render
the user solely responsible to the competent authorities for the prevention of accidents.
IMPORTANT!
Hydraram declines all liability for any accidents, injuries to personnel or damage to property
resulting from the failure to adhere to the general safety instructions and the standards set out in
this document.
Symbol Description Symbol Description
“Read the manual”
Read this Use and Maintenance Manual
carefully.
“Safety distance”
Remain at a safe distance from the range
of operation of the operating machine.
“Burn hazard”
Surfaces that can reach high
temperatures resulting in burn hazards.
Wait for the attachment to cool before
carrying out any work on it.
“Danger of ejected material”
Remain at a safe distance from the range
of operation of the operating machine.
“Crushing hazard”
Do not approach the operating machine
during the work cycle. In the event of
maintenance, wear personal protection.
“Greasing points”
Indicates the points to be lubricated.

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3.6.Safety pictograms
The following pictograms indicate when it is obligatory to wear personal protective equipment (PPE)
3.7. Lighting
Lighting in the work area must conform to applicable legislation law in the country where the attachment is
being used and must provide good visibility at every point, not create dangerous reflections and allow for
clear visibility of the controls and the entire work area up to the safety limits required for objects that may
be ejected. Since the attachment has no independent lighting, the environment must be provided with
general lighting of 250 to 400 lux at every point in the work area.
4. Description of the attachment
4.1.Description of the attachment
The Sorting and Demolition Grab - HDG Series is an attachment that has been fully designed and
manufactured by Hydraram intended for modern industrial demolition sites which involve significant
moving and sorting eorts and experts in recycling scrap. The attachment consists of a main body and
grab shells. The body is fitted with a rotation plate for continuous hydraulic rotation, so as to reduce
moving operations as much as possible and provide the highest level of precision.
The closing force is produced by a thrust from the hydraulic cylinder, which enables the device to grab and
lift loose material o the ground. Each shell is fitted with a blade at the tip, which completes the grabbing
action when the shells are moved into a closed position. Always pick up a long load at its center of gravity
to prevent the excavator from rotating or tipping. It is possible to rotate the demolition and sorting grab
infinitely.
Symbol Description Symbol Description
Protective goggles obligatory Work clothing obligatory
Ear defenders obligatory Protective gloves obligatory
Safety shoes obligatory Hard hat obligatory

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4.2. Technical specifications
HDG-8R HDG-10R HDG-15R HDG-25R HDG-34R HDG-42R HDG-46R
Excavatorclass t 0.7 - 1.2 0.7 - 2.0 1.2 - 3 3- 5 3.5-5.5 4 - 6 5 - 9
Weight kg 100 120 200 290 340 400 450
Workingpressure bar 300 300 300 300 300 300 300
Oilflow at open/close l/min. 15 20 25 35 35 40 50
Workingpressure rotation bar 210 210 210 210 210 210 210
Oilflow rotation l/min 5 5 10 10 10 12 12
Shell width mm 300 350 450 500 500 600 700
Spread opened mm 600 770 750 1160 1160 1400 1500
Height mm 700 700 700 850 770 950 1000
Capacity ltr 30 50 70 100 120 150 200
Closing force kN 8 12 18 22 24 26 28
HDG-52R HDG-62R HDG-88R HDG-110R HDG-130R HDG-150R HDG-180R
Excavatorclass t 7 - 11 10 - 15 12 - 18 14 - 22 15 - 24 17 - 25 18 - 28
Weight kg 560 680 980 1140 1220 1380 1520
Workingpressure bar 320 350 350 350 350 350 350
Oilflow at open/close l/min. 70 90 100 120 120 120 150
Workingpressure rotation bar 210 210 210 210 210 210 210
Oilflow rotation l/min 15 15 25 25 25 25 35
Shell width mm 700 600 800 800 900 1000 900
Spread opened mm 1550 1800 1800 1950 1950 1950 2100
Height mm 1100 1150 1200 1300 1300 1300 1500
Capacity ltr 200 300 400 500 600 700 750
Closing force kN 30 36 45 50 50 50 62

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HDG-210R HDG-240R HDG-280R HDG-310R HDG-340R HDG-380R HDG-420R
Excavatorclass t 20 - 30 22 - 32 24 - 36 25 - 38 28 - 42 30 - 45 32 - 52
Weight kg 1640 1830 1980 2030 2280 2840 3060
Workingpressure bar 350 350 350 350 350 350 350
Oilflow at open/close l/min. 160 170 170 170 200 200 200
Workingpressure rotation bar 210 210 210 210 210 210 210
Oilflow rotation l/min 35 35 35 35 25 25 25
Shell width mm 1000 1200 1200 1200 1200 1200 1360
Spread opened mm 2100 2100 2250 2200 2200 2200 2200
Height mm 1500 1500 1500 1650 1700 1700 1750
Capacity ltr 800 850 900 900 950 1000 1100
Closing force kN 68 72 80 80 90 95 100
HDG-480R HDG-520R HDG-580R HDG-640R HDG-820R HDG-1400R
Excavatorclass t 35 - 54 42 - 64 45-80 50 - 85 80 - 140 120 - 240
Weight kg 3420 4360 4700 5420 8120 14200
Workingpressure bar 350 350 350 350 350 350
Oilflow at open/close l/min. 200 250 250 300 320 350
Workingpressure rotation bar 210 250 210 250 250 250
Oilflow rotation l/min 35 35 50 35 35 35
Shell width mm 1500 1500 1500 1500 1600 1800
Spread opened mm 2400 2600 2850 3000 3500 4400
Height mm 1800 1900 1825 2000 2300 3000
Capacity ltr 1300 1500 1550 1600 2000 4600
Closing force kN 110 148 152 155 180 220