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Beware of the caving in hazard at the excavation and around it. Do not drive near the

edge of the hole or allow children to play near it.

Do not operate the backhoe at horizontally overly tilted terrains. Transport the backhoe

as low and close to the loader as possible. Drive carefully on inclined terrains.

Drive  the  loader  so  that  digging  is  performed  from  front  of  the  loader.  On  inclined  terrains  avoid  excess
pulling from the sides, which can affect the stability of the loader.

Digging with the backhoe is the most efficient when the edge of the bucket is kept at an angle that allows the
edge to cut the soil the most effectively. Pull the edge of the bucket towards the loader with the left lever and
tilt  the  bucket  by  operating the  right  control lever  at the  same time. The  bucket  should  not  be  pressed  too
hard  downwards,  since  this  would  result  in  lifting  the  front  tires  of  the  loader,  and  digging  becomes
ineffective.

When operating with the backhoe, moderate engine revolutions are often enough. Higher revolutions will not
increase  the  digging  force.  Keeping  the  engine  revolutions  moderately  low  will  save  fuel;  keep  the
revolutions just high enough so that the engine will not stall.

At  the  first  use  the  movements  of  the  backhoe  may  be  imprecise  as  there  might  be  air  trapped  in  the
hydraulic  components.  The  hydraulic  system  will  bleed  itself,  when  moving  all  the  movements  to  their
extreme positions.

When lifting a load from a high level, the loader could tip forward when reversing with

the  loader.  Do  not  reverse  the  loader  while  simultaneously  dragging  the  load.  Make

sure  that  the loader  can  lift  and  handle  the load  being lifted.  Drive carefully  on  rough

terrains and keep the load as low and as close to the loader as possible.

Do not use the backhoe without the supporting bracket. The purpose of the bracket is
to lock the tilting and to make the backhoe more stable for more effective operation.

7.

 

Inspections, maintenance and servicing

Continuous  maintenance  of  the  backhoe  includes  regular  cleaning  and  lubricating.  The  condition  of  the
hydraulic  hoses  and  components  should  be  monitored.  Due  to  crushing  hazard  caused  by  the  moving
components of the backhoe, all maintenance work must be done when the backhoe has been lowered down
completely, its residual pressure is released and the loader is shut down.

Ensure that the backhoe is properly supported before any maintenance work. Note that

the  backhoe  may  move  also  when  the  loader  has  been  shut  down  and  watch  out

pinching of fingers or hands in particular.

Check the  condition  of the  hydraulic  hoses  and  components  when  the  engine  has  been  turned  off  and  the
pressure has been relieved. Repair all leaks immediately after detecting them; a small leak can quickly grow
into  a  big  one.  Do  not  use  the  equipment,  if  you  have  discovered  a  fault  in  the  hydraulic  system.  Leaking
hydraulic  fluid  may  penetrate  the  skin  and  cause  serious  injuries.  Hydraulic  fluid  is  also  harmful  to  the
environment.

Содержание Backhoe 220

Страница 1: ... 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 220 250 Product number 400 700 series loaders A21172 A21155 ...

Страница 2: ...ing symbols to indicate factors that must be taken into account to reduce the risk 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 wi...

Страница 3: ... to the equipment or directly from the driver s seat when the control valve unit is mounted on the loader boom A comprehensive range of buckets is available for various jobs Also a grading bucket with hydraulic tilting is available for which the backhoe is equipped with necessary components as standard The use of the backhoe as a lifting crane is prohibited due to a risk of tipping the loader back...

Страница 4: ... during storage See section 5 Shut down the loader engine before any cleaning maintenance or adjustments Ensure that the backhoe is supported properly supported when going near the attachment Do 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 the backhoe and the loader boom move down...

Страница 5: ...ation 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 parts A46797 Crushing hazard in the reach area of the backhoe keep bystanders away from danger area A46771 A46772 A46803 A46797 5 Assembly of the backhoe The ba...

Страница 6: ...hers and nuts 5 1 2 Mounting the lower adapter brackets for hydraulic locking The backhoes are hydraulically locked to the front frame of the loader by the brackets which are turned against the underside of the loader Before putting the backhoe into service the lower adapter brackets must be mounted The locking adapters see figures on the right and below are mounted to below the quick attach plate...

Страница 7: ...ed To make it easier to mount the assembly kit lift the loader boom and mount the service support of the loader boom Take up the items shown in the adjacent figure Use the service support of the loader boom during installing of the valve mounting bracket Remove the pin holding screw from the upper end of the loader boom shown in the left figure Mount the holding bracket on the boom and replace the...

Страница 8: ...ked in the upper position Ensure that the hydraulic hoses are not in the way during installation Step 2 Turn the quick attach plate hydraulically to an obliquely forward position Drive the loader onto the attachment If your loader is equipped with a telescopic boom you can utilise this Step 3 Lift the boom slightly pull the boom control lever backward to raise the attachment off the ground Turn th...

Страница 9: ...in the backhoe and the bucket and the backhoe booms will lower to a stable position 10 Open the quick coupling and take the backhoe off from the loader 5 3 Connecting and disconnecting the hydraulic fittings Before connecting or disconnecting hydraulic fittings shut down the loader engine and move the auxiliary hydraulics lever on the loader to its extreme positions a few times and also move the c...

Страница 10: ...ation tasks and constant changing of location it is advisable to mount the control valve on the bracket on the loader boom that is included in the installation kit of the backhoe The backhoe may be operated from the control position next to it in tasks demanding accuracy or when visibility is hindered or when using the backhoe only for a little while Move the control valve back to its place on the...

Страница 11: ...cidentally operated so that accidental movement of the backhoe may create a hazardous situation Never go under a raised boom or the attachment The backhoe components and the loader boom move down even if the engine has been stopped 6 1 Using the outriggers The backhoe is equipped with outriggers which are intended to stabilize the backhoe during digging and moving material to the sides Using the b...

Страница 12: ...r boom while the locking is engaged Open the hydraulic locking before using the boom control lever 6 3 Digging with the backhoe 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 t...

Страница 13: ...movements to their extreme positions When lifting a load from a high level the loader could tip forward when reversing with the loader Do not reverse the loader while simultaneously dragging the load Make sure that the loader can lift and handle the load being lifted Drive carefully on rough terrains and keep the load as low and as close to the loader as possible Do not use the backhoe without the...

Страница 14: ...cate the lubrication points on the attachment after washing Do not let water to stay in the bucket For longer storage periods touch up the paint where needed grease the lubrication points and oil the visible parts of hydraulic cylinder shafts to prevent rust damage Do not store the attachment directly against the ground place it on blocks of wood or on a pallet for example 7 2 Lubricating The lubr...

Страница 15: ...rformed 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 or the belts or parts and consumables required for it Damages caused by unusual operating conditions or ...

Страница 16: ...irective 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 Die folgende harmonisierte Normen wurden angewandt SFS EN ISO 12100 1 SFS EN ISO ...

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