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© 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 field of selling all imaginable requirements for these markets, our large rental fleet 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 field 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 qualified 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.

Modifications 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 effective 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

E [email protected]

I www.dehaco.nl

 

Dealer

Summary of Contents for DSG

Page 1: ...DSG Hydraulic demolition and sorting grabs Operation and maintenance manual DSG V2 0 31 01 2022 English ...

Page 2: ...tems and asbestos tools also contribute to Dehaco s unique market position Dehaco is a market leader in the Benelux in the field 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 qua...

Page 3: ... 3 TRANSPORT 13 3 2 Transport with a fork lift truck 13 3 3 Transport by lorry 13 4 INSTALLATION 14 4 1 Hydraulic fluids 14 4 2 Attaching to the excavator 15 4 3 Detaching the demolition and sorting grab from the excavat 16 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 off 18 5 3 Function test 18 5 4 Proper u...

Page 4: ...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 sufficient it will not be stable when using the demolition and sorting grab The excavator could ...

Page 5: ...ger zone Ø Stop the works immediately when someone enters the danger zone Ø Close 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 bl...

Page 6: ...n 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 infinite rotation the demolition an...

Page 7: ...hines with suitable capacity to transport the demolition and sorting grab Ø Ensure 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 le...

Page 8: ...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 Ø Use 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 envir...

Page 9: ...ate 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 Ø Tighten 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 ca...

Page 10: ...cavator 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 t...

Page 11: ...gs 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 fill 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 te...

Page 12: ...orting 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 e...

Page 13: ...tings become very hot during operation Contact with these components can cause burns Ø Never touch hot components Ø If works need to be completed on or near hot components wait for them to cool down first WARNING UNINTENTIONAL STARTING Unintentional starting of the excavator demolition and sorting grab can lead to serious injury Ø Follow the instructions to avoid unintentional starting WARNING UNE...

Page 14: ...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 ...

Page 15: ... 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 necessar...

Page 16: ...ng grab WARNING RISK OF TIPPING If the demolition and sorting grab tips over while stored this can lead to serious injury and property damage Ø Preferably 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 wh...

Page 17: ...00 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 op...

Page 18: ...osed 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...

Page 19: ... Lisserbroek NL 31 0 252 41 79 50 info dehaco nl 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 info dehaco nl ...

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