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Dehaco B.V. • Kruisbaak 25 • 2165 AJ Lisserbroek (NL) •

✆

+31 (0)252 - 41 79 50 •



[email protected] • www.dehaco.nl

7. Troubleshooting

7. TROUBLESHOOTING

7.1 The demolition and sorting

grab does not work

7.2 Insufficient closing force

7.3 The rotate function does not work

Cause

Solution

By who?

Ensure the valve in the

Open of Close pipe

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 Insufficient 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

Содержание DSG

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

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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