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Tilt the loader front plate so that it possible to remove the supporting bracket. After removing the bracket tilt
the  backhoe  a  little  forward  to  a  position  in  which  it  will  stay  stable  on  its  own.  Shut  down  the  loader  and
lower the bucket onto ground. Move the control levers of the backhoe to all directions, as well as the auxiliary
hydraulics  control  pedal  of  the  loader  to  their  extreme  positions  to  release  any  residual  pressure,  and
disconnect the hydraulic couplings.

6.

 

Instructions for use

Work  can  be  started  when  the  backhoe  has  been  mounted  and  the  supporting  bracket  and  the  hydraulic
couplings  have  been  connected  according  to  the  instructions.  Check  the  attachment  once  more  before
starting work.

 

Check  that  all  obstacles,  including  any  hidden  ones,  have  been  removed  from  the  working  area
before operation. Remember correct working methods and avoid unnecessary descending from the
driver’s seat.

 

Make sure that it safe to dig in the location. Find out if there are electric cables, water lines or similar
obstacles at a depth that can be reached with the digger.

 

Operate the backhoe only at well-lit areas.

 

Ensure that the loader and attachment are used in a safe manner and as intended.

 

Check  regularly  to  ensure  there  are  no  hydraulic  leaks.  Refer  to  Section  7  for  maintenance
instructions.

 

Operate the attachment from the driver's seat only.

6.1.

 

Operation

To operate the backhoe, lock the auxiliary hydraulics control pedal of the loader on. When operating with the
backhoe,  moderate  engine  rpm  is  often  enough.  Higher  rpm  will  not  increase  the  digging  force,  but  if  the
engine  stalls,  use  a little  higher  revolutions.  Keeping  the  engine  rpm low  according  to  operating  conditions
will save fuel.

Keep  the  auxiliary  hydraulics  turned  off  when  transporting  the  equipment  or  whenever  not  using  the
backhoe. Turn the boom slewing to its middle position so that it will not create  a force  that  could  affect the
stability of the loader.

At the work site check the operating environment and set the backhoe on its outriggers, as shown in section
6.1.1.  On  sloped  terrains  avoid  pulling  material  from  the  sides,  which  could  affect  the  loaders  stability.
Preferably drive the loader so that digging is performed from the front of the loader.

Check the operating area before starting to work:

 

Ensure that there are no other persons at the work site. Do not allow others closer

than five meters from the backhoe, near the danger area of the boom or directly in

front of the backhoe.

 

Make sure that it is safe to dig at the site. Find out if there are any electric cables,

water lines or similar obstacles within the reach of the equipment.

Turn  the  auxiliary  hydraulics  of the loader  off  whenever  not  operating  the  backhoe  or

when transporting the backhoe. The control levers of the backhoe may be accidentally

operated,  so  that  accidental  movement  of  the  backhoe  may  create  a  hazardous

situation.

Summary of Contents for A33748

Page 1: ...the equipment and follow all instructions Keep this manual for later reference Operator s Operator s Operator s Operator s manual for Attachment manual for Attachment manual for Attachment manual for Attachment Backhoe 170 Product number 300 700 series loaders A33748 ...

Page 2: ...sk of personal injury or damage to property This safety symbol refers to important safety information in this manual It warns of an immediate hazard that could cause serious personal injury or damage to property Read the warning text accompanying the symbol carefully and ensure that other operators are also familiar with the warnings since personal safety is at stake This notice symbol indicates i...

Page 3: ...er backhoe combination over The backhoe is not suitable for dredging The attachments have been designed to require as little maintenance as possible Regular maintenance tasks can be performed by the operator Not all maintenance tasks can be performed by the operator more demanding service or repairing tasks must be left to qualified professionals Appropriate protective equipment and original spare...

Page 4: ...not modify the structure of the attachment in a manner that would affect its safety Also read the safety instructions for the loader in the loader manual Note that both the boom of the loader and the backhoe move down even if the engine has been stopped Never go under a raised boom or the attachment Lower the backhoe on the ground before leaving the driver s seat Familiarise yourself with the load...

Page 5: ...ched completely New labels are available via your retailer or contact information provided on the cover page The warning decals contain important safety information Replace damaged or missing decals with new ones A46771 Read the instructions before use A46772 Do not go under a raised attachment keep a safe distance from raised or freestanding equipment A46803 Crushing hazard keep clear of moving p...

Page 6: ...rol valve boom of the backhoe Do not unfasten the valve boom strap until the backhoe is completely mounted to the loader 5 1 Mounting the backhoe to the loader The attachment is mounted to the loader boom by using the quick attach plate and the counterpart on the attachment In addition to this a locking bracket must be also installed Never move or raise an attachment that has not been locked The b...

Page 7: ...s The hydraulic couplers of the backhoe should connected so that the male coupling is connected to the coupling marked with a coloured cap on the loader The other hose is connected to the tank line free return line Before connecting or disconnecting hydraulic couplings shut down the loader engine and move the auxiliary hydraulics pedal on the loader to its extreme positions a few times This way th...

Page 8: ... amount of oil will be released beware of the oil Tighten the fitting immediately after the procedure The backhoe may move when the pressure is released stay clear from the equipment Wear protective goggles and gloves and wrap the fitting with cloth when releasing pressure from the hoses to prevent oil spilling 5 3 The valve boom of the backhoe Under the valve boom there is a supporting bracket wh...

Page 9: ...er s seat only 6 1 Operation To operate the backhoe lock the auxiliary hydraulics control pedal of the loader on When operating with the backhoe moderate engine rpm is often enough Higher rpm will not increase the digging force but if the engine stalls use a little higher revolutions Keeping the engine rpm low according to operating conditions will save fuel Keep the auxiliary hydraulics turned of...

Page 10: ...e outrigger Use the cotter pin to lock the adjustment pin Adjust the outriggers so that the front tires of the loader will rise slightly of the ground when the loader boom is set to its lowest position This way the control levers will be easy to reach and the best stability can be achieved The outriggers are equipped with spikes which can be used to keep the backhoe better in place during digging ...

Page 11: ...adjusting screw of which is visible at the left side of the control valve cover When learning to use the backhoe the actual working speed can actually be greater due to increased accuracy even if the movements of the backhoe are slower Note that adjusting the speed of the movements affects only the speed not the force of the backhoe The speed of backhoe movements can be adjusted as follows 1 Shut ...

Page 12: ...rained professional if unsure how to safely perform the task Never tighten a hydraulic fitting under pressure since the fitting may break and the released oil may cause serious injuries Do not use the equipment if you have discovered a fault in the hydraulic system 7 1 Service support At the side of the backhoe lifting boom there is a red service support which is intended to lock the booms for tra...

Page 13: ... of purchase The warranty covers repair costs as follows Work costs are covered if the repair is not performed at the factory The factory replaces any defective components or consumables The factory may reimburse the price of components purchased by the customer in special cases that have been agreed in advance The warranty does not cover Normal maintenance work such as the replacement of blades o...

Page 14: ... products listed below are in conformity with the provisions of the Machinery Directive directive 2006 42 EC as amended The following harmonized standards have been applied SFS EN ISO 12100 1 SFS EN ISO 12100 2 SFS EN 982 SFS EN 474 4 Wir erklären hiermit dass die nachstehend aufgeführte Maschine konform ist mit den Bestimmungen der EG Maschinenrichtlinie EG Richtlinie 2006 42 EG mit Änderungen Di...

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