background image

6 (26) 

 

 

 

 

2.

 

Designed purpose of use 

The AVANT Timber grab with rotator is an attachment that is designed and manufactured to be used with 

AVANT multi-purpose loaders shown in Table 1. The timber grab is intended for lifting and stacking of tree 

trunks, branches, or other similar materials. Rotating grab makes it possible to move materials sideways or 

parallel to the machine. The timber grab equipped with hydraulic rotator makes it easy to move materials in 

tight spaces and makes it possible to load materials e.g. to trailers or stacks in any direction. 
The strong hydraulic grapple allows firm grip of lifted material. The freely rotating model allows to turn the 

material in desired position manually or by pushing against the ground. The hydraulically rotating model 

makes it easy to drive on narrow areas, and makes it easy to rotate the load into correct position for loading 

on a trailer or for stacking. The hydraulically operated rotation is selected with an electric switch, or a switch of 

the attachment control switch pack. 
The timber grab with rotator is not designed for any other use than specified and must not be used for any 

other purposes than intended.  

 

The attachment has been designed to require as little maintenance as possible. The operator can perform 

regular maintenance tasks. All repair work can’t be performed by the operator, and demanding repair and 

maintenance operations are to be left for professional maintenance. All maintenance work must be done using 

proper safety equipment. Spare parts must be identical with original specifications, which can be ensured by 

using only original spare parts. A separate spare parts catalogue may be available, consult your Avant dealer. 
Familiarise yourself with the manual's instructions regarding service and maintenance. Please contact your 

AVANT retailer if you have additional questions about the operation or maintenance of the equipment, or if 

you require spare parts or maintenance services. 

 

Table 1 - Timber grab with rotator - Compatibility with Avant loaders 

Avant 

220

 series 2

 

225 

225LPG 

313S 
320S 

420 
423 
523 

520 

R20 

525LPG 

R28 

528 
530 

630 

R35 

635 
640 

745 
750 

755i 
760i 

e5 
e6 

A37456 

 

 

 

 

 

 

A37457 

 

 

 

 

 

 

 

 

Summary of Contents for A37456

Page 1: ...Timber grab with rotator 2018 1 Operator s Manual for Attachment Timber grab with rotator Product number A37456 A37457 English A430009 2018 1 EN 2017 www avanttecno com ...

Page 2: ...Timber grab with rotator 2018 1 ...

Page 3: ... 10 5 ATTACHING THE ATTACHMENT 12 5 1 Connecting and disconnecting hydraulic hoses 13 5 2 Electric connection 15 6 INSTRUCTIONS FOR USE 16 6 1 Checks before use 17 6 2 Operator qualification 17 6 3 Operating the timber grab 18 6 3 1 Extra gripping edge optional extra 19 6 4 Working on uneven ground 19 6 5 Transport position 20 6 6 Storing the timber grab 20 7 MAINTENANCE AND SERVICE 21 7 1 Inspect...

Page 4: ...quipment for other purposes or use in any other way than described in this manual is prohibited Keep this manual at hand throughout the service life of the equipment If you sell or transfer the equipment be sure to hand over this manual to the new owner If the manual is lost or damaged you can request a new one from your Avant dealer or from the manufacturer In addition to the safety instructions ...

Page 5: ...ention to instructions involving your personal safety or the safety of others When you see this symbol be alert your safety is involved carefully read the message that follows and inform other operators DANGER This signal word indicates a hazardous situation which if not avoided will cause death or serious injury WARNING This signal word indicates a potentially hazardous situation which if not avo...

Page 6: ... or a switch of the attachment control switch pack The timber grab with rotator is not designed for any other use than specified and must not be used for any other purposes than intended The attachment has been designed to require as little maintenance as possible The operator can perform regular maintenance tasks All repair work can t be performed by the operator and demanding repair and maintena...

Page 7: ...lways transport the attachment as low as possible to keep the centre of gravity low and keep the telescopic boom retracted during driving The operating area must be well lit Use the work lights of the loader and other light sources as necessary Drive slowly and carefully on inclined terrain or slippery surfaces Avoid sudden changes in speed or direction to maintain balance of the loader especially...

Page 8: ...tor s manual of the loader 3 1 Safe shutdown procedure Safe stopping of the attachment before going near the attachment WARNING Always stop the attachment following safe stopping procedure before leaving the driver s seat Safe stopping procedure prevents all unintentional movements of the attachment Note that the loader boom can move down even if the engine of the loader is turned off Safe stoppin...

Page 9: ...ous 360 Hydraulic continuous 360 Weight 116 kg 136 kg Maximum allowed load As restricted by the loader model see operator s manual of the loader Recommended input of hydraulic energy 10 20 l min Maximum input of hydraulic energy 30 l min 20 MPa 200 bar Suitable AVANT loader See Table 1 Available options Gripping edge A427744 Total width 538 mm Lenght 384 mm Height 370 mm ...

Page 10: ...NG Make sure all warning decals are readable The warning labels contain important safety information and they help to identify and remember the hazards related to the equipment Replace damaged or missing warning labels with new ones Attachment identification plate A423101 A46771 A46772 A46803 To apply a new label Clean the surface thoroughly to remove all grease Allow it to dry completely Peel off...

Page 11: ... boom keep a safe distance to lifted equipment 3 A46803 Crushing hazard moving components Keep clear of moving components 4 Identification plate Table 4 Main components of the timber grab 1 Grapple 2 Rotating joint or hydraulic rotator 3 Grapple pivots 4 Frame with Avant quick coupling 5 Multi connector 6 Gripping edge 7 Connector holder 8 Gripping edge optional extra ...

Page 12: ... an attachment that has not been locked Avant quick coupling system Step 1 Lift the quick attach plate locking pins up and turn them backwards into the slot so that they are locked in the upper position If your loader is equipped with a hydraulic attachment locking system see additional instructions about the use of the locking system from the relevant manuals Ensure that the hydraulic hoses are n...

Page 13: ...l systems must be ensured in addition to mechanical compatibility of the attachment If you use the attachment with a loader that is not fit to be used with the attachment model you have risks include tipping over damage to attachment due to overload and risks related to uncontrolled motion of attachment and its parts If your loader is not listed in Table 1 on page 6 ask your Avant dealer before us...

Page 14: ...rn the lever to disconnect the connector 3 After ending operation put the multi connector on its holder on the attachment Disconnecting hydraulic hoses Before disconnecting the fittings lower the attachment to safe position on solid and level surface Turn the control lever of the auxiliary hydraulics to its neutral position When uncoupling the attachment always disconnect the hydraulic couplings b...

Page 15: ...ternatively the optional attachment control switch pack can be used to choose the operating mode In this case the separate cable with the switch is not needed and the plug of the attachment can be connected directly to the socket on the loader boom The mode is selected with the switch number 1 Route the selected cable in a way that it cannot get stuck or squeezed or stretch when the equipment move...

Page 16: ...he loader boom is in horizontal position When you notice that the rear wheels of the loader are about to lift from the ground or if the load indicator of the loader if fitted signals Lower the load calmly and retract the telescopic boom Avoid sudden changes in speed or direction whenever load is lifted Use additional counterweights as needed WARNING Risk of crushing Never allow anyone to get under...

Page 17: ...ttachments while under the influence of alcohol drugs medication that may impair judgement or cause drowsiness or if not otherwise medically fit to operate the equipment Remember correct working methods and avoid leaving the driver s seat unnecessarily Practise the use of the attachment and the controls of the loader in a safe area If you are unfamiliar with the particular loader model it is recom...

Page 18: ...to support the timber Aim to grasp timber so that the grab can be closed completely and that no material will be held only by the edges of the grab When lifting a too heavy load material can fall if held only by the grasping force of the grab The grab with hydraulic rotator is equipped with an electric solenoid valve for selection between grab opening closing and rotator operated from the driver s...

Page 19: ...specially on inclined uneven or slippery surfaces and avoid sudden changes in speed or direction Operate the controls of the loader with careful and smooth movements Watch out for ditches holes on the ground and other obstacles as hitting an obstacle may cause the loader to tip over Maximum lifting capacity can not be achieved on inclined terrain On horizontally tilted terrain the load must not be...

Page 20: ... direct sunlight rain and extreme temperatures Avoid leaving the attachment laying directly on the ground Place it on blocks of wood or on a pallet for example Place the multiconnector on to its holder Never leave the hydraulic connector on the ground Make sure that the attachment is secured against all movements during storage Never climb on the attachment WARNING Risk of serious personal injurie...

Page 21: ...armful to the environment and any leak to the environment must be prevented Repair all leaks immediately after detecting them a small leak can quickly grow into a big one Operate the attachment only with type of hydraulic oil that is accepted for use in Avant loaders DANGER Risk of high pressure fluid injection through skin Release residual pressure before maintenance Never handle hydraulic compon...

Page 22: ...t must be added added lubricant will push out dirt from joints Clean the end of the nipple before greasing Only add the grease amount of a couple of grease press pushes at a time Before longer storage periods touch up the paint where needed grease the lubrication points and oil the visible part of hydraulic cylinder shaft to prevent rust damage 7 3 Inspection of metal structures Also the metal str...

Page 23: ...y 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 or parts and consumables required for it Damages caused by unusual operating conditions or ways of use negligence structural changes made without the consent of Avant Tecno Oy use of non original parts or lack of maintenance Consequence...

Page 24: ... med hälso och säkerhetskrav i EG maskindirektiv EG direktiv 2006 42 EG som ändrat Följande harmoniserade standarder har tillämpats We hereby declare that the 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 SFS EN ISO 4413 Mallit Modeller Models Avant Hydraul...

Page 25: ......

Page 26: ......

Reviews: