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DALBO MINIMAX 950, User Instructions

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DALBO MINIMAX 950 User Instructions Download Page 31

 

 

MINIMAX 

 

 

Page 31 

Replacement and repairs 

 

Safety is crucial in regard to 

all 

repair work on the drum. The following points 

must therefore be observed at all times, as well as the points under safety at 
the beginning of the instruction manual. 

 

 

When replacing cylinders, always fill the cylinder with oil before subjecting it 
to strain. It is therefore recommended that you mount the cylinder in the 
fixed part of the frame first, after which the cylinder is filled with oil and then 
mounted in the counterpart. 

 

 

All maintenance and repair work on the drum must be conducted only when 
the machine is lowered to the ground or is set in transport mode, the trac-
tor's brake is on, the engine is switched off and the ignition key is removed, 
so that the machine cannot move or start accidentally. 

 

 

For all repair work on the hydraulics, always pay close attention to safety. 
Before starting the work, release the pressure in the hydraulics system and, 
if necessary, support the part. 

 

 

Once the repair work on the hydraulics system is complete, the system must 
always be vented before use to prevent mechanical breakdown and personal 
injury. 

 

Hydraulics 

Changing out the cylinders for unfolding and folding the side sections 

 

Any  repairs  must  be  carried  out  with  the  drum  unfolded  and  resting  on  its 
undercarriage. 

 

Fig. 25 

1.

 

The  pressure  is  removed  from  the 
cylinders. 

2.

 

The hoses are removed. 

3.

 

Cotter  pins  and  nails  are  removed, 
and then the cylinder is free. 

4.

 

The  new  or  repaired  cylinder  is 
mounted.  Remember  to  secure  the 
nail  in  the  nail  stop  and  secure  the 
nails with cotter pins. 

5.

 

The  hoses  are  mounted.  After 
mounting,  ensure  that  there  is  no 
risk of tearing or clamping the hos-
es. 

 

 

 

After mounting, the cylinders are activated for unfolding and folding until a 
small amount of movement can be felt in the cylinders. The cylinders are 
then activated in the opposite way until the cylinders are back in the starting 
position. The cylinders are moved a few times in this way. The drum is then 
tilted up onto the wheels and the side sections moved completely out into 

Summary of Contents for MINIMAX 950

Page 1: ...MINIMAX User instructions Date of publication 01 2021 Date printed 01 2021 Language EN Type MINIMAX 950 Product no MINIMAX 950 Serial no 56270 xxxxx ...

Page 2: ......

Page 3: ...ind a list of spare parts which helps give an overview of the individual parts EU DECLARATION OF CONFORMITY DALBO A S DK 7183 Randbøl hereby declares that the aforementioned machine is manufactured in accordance with the stipu lations in Directive 2006 42 EC which replaces the Directive 98 37 EC and the amending Direc tives 91 368 EEC 93 44 EEC and 93 68 EEC on a mutual approach for member state l...

Page 4: ...HE INSTRUCTION MANUAL 14 DELIVERY 14 USE 15 FIRST USE OR RESTART AFTER A LONG BREAK 15 CONNECTING AND DISCONNECTING 16 CONNECTING 16 HYDRAULICS 16 DISCONNECTING 16 SETTINGS 17 TENSILE ADJUSTMENT 17 ADJUSTMENT OF CENTRAL SECTION 18 ADJUSTMENTS OF STOP FOR FOLDING 18 DRIVING AND OPERATING 19 UNFOLDING AND FOLDING 19 Unfolding 19 Folding 20 ADJUSTMENTS OF HYDRAULIC WEIGHT TRANSFER 21 Too much pressur...

Page 5: ...ing and folding the side sections 31 Changing the tilt cylinder 34 Change the gaskets on the tilt cylinder 35 Additional Equipment Changing the cylinder to crackerboard 36 Replacement of the gaskets for depth adjustment 36 UNINSTALLING INSTALLING OF WHEELS 38 Replacing the bearings 38 DISMANTLING THE DRUM BODY 39 Replacement of the drum body on the side sections 39 Replacement of the centre drum b...

Page 6: ...that the person in question is instructed on the correct use of the drum This includes a review and a read through of the user guide and commissioning in the field If there are doubts regarding reading the user guide or concerning the general use and safety of the drum it is very important to stop its use and contact the DALBO A S Location of user manual Fig 1 The user manual can be found in a pla...

Page 7: ...ingle machine is equipped with an identification plate Below is shown a typical identification plate which containing the following data A Name company name and address of the manufacturer B Machine model C Machine type D Machine serial number E Year of manufacture F CE imprinting Warranty provision By default your MINIMAX is delivered with a 2 year warranty from the date of delivery DALBO A S sha...

Page 8: ... be familiar with all parts of the machine Safety labels have been placed on the machine These contain important instructions about your own safety and that of others as well as the cor rect use of the machine Always make sure that these stickers are intact Fig 3 Attach straps here if you are lifting the drum using a crane or truck Some safety stickers are on the machine Pictures below show were t...

Page 9: ...maintenance or repairs to the drum unfold the machine and lower it to the ground or secure it in transport mode apply the brakes on the tractor turn off the engine and remove the ignition key so that the machine is secured against accidental starting Remember to secure the supporting legs as well as the lifting arm with lynch pins Never leave the driver s seat while the machine is being driven The...

Page 10: ... it is opportune to keep the mirrors supplied on the tractor clean and in a perfect state Keep the machine clean from foreign material detritus tools various ob jects that could damage functioning or cause damages to the operator Avoid operating on muddy or loose soil Any alteration on the machine could cause safety problems Should this occur the user will be held the only person liable for any ac...

Page 11: ...ugh the skin and cause serious injuries Seek professional medical assistance im mediately in the event of any injury Do not use the controls or flexible tubes as handles These components are mobile and do not offer a stable support Mounting There is a risk of crushing when carrying out mounting People must not stand between the machinery and the tractor or between parts being connected Pay the max...

Page 12: ...ean the wheels of the tractor and machine from any presence of mud When driving on a public road the roller must be in transport position Road transport must be done with a maximum speed of 25 km h Correct use Correct use of the machine also includes compliance with the manufac turer s operating maintenance and repair instructions as well as the ex clusive use of original spare parts The drum may ...

Page 13: ...nded 160 220 Gross Weight kg Cambridge 50 5215 Cambridge 55 6090 Crosskill 53 4580 Cross Combi 50 5340 Cross Combi 55 6410 Sections pieces 3 Hydraulic require ments 1 DV 1 EV1 X Additional Equipment kg Crackerboard 745 Air brakes 180 1 DV dual action EV single action ...

Page 14: ... symbols are used in the instruction manual for Points that are especially important for the functionality as well as the lifetime of the machine Points that are relevant to safety Delivery The drum is delivered fully assembled via platform truck If the drum needs to be lifted it is recommended that it is rigged with straps in the middle section and pulled so that the machine is balanced Incorrect...

Page 15: ...to improve sprouting and push down stones The MINIMAX 950 can be optionally fitted with hydraulic crackerboards The main application of the crackerboard is in preparing the soil for sowing The vibrating effect of the teeth decomposes tubers and performs a processing and alignment of the raw ploughed soil as well as the previously prepared ground If you do not wish to use the crackerboard tilt it u...

Page 16: ...he drum If a crackerboard is fitted a double acting outlet is required Table 1 Hose markings Cylinder name Colour Outlet Function Tilt cylinders White Single acting Lift the drum up on the wheels and down into working mode Folding weight transfer Red Double acting Fold the side sections together out to transfer the weight from the mid section to the side sections Make sure the hydraulic hoses have...

Page 17: ...le height must be approx 50cm and max 60cm by 950cm Tensile adjustment Fig 4 In order to achieve uniform pres sure on the ground the bar must be adjusted correctly for the trac tor concerned measured where the arrow is indicated on the image flange plate as the front part of the pull is reversible Height under drawbar Approx 50cm by 950cm Fig 5 It is important that the machine s central section A ...

Page 18: ... not horizontal the bolts must be adjusted Likewise the bolts should be adjusted if there is too large a space between the frame and the bolt head Fig 7 1 Loosen the lock nut A 2 Adjust the bolt B up down 3 Tighten the lock nut A 4 Check if the frame is horizon tal and if the height of the bar fits 5 If the bolts B do not move against the bar drive the trac tor slightly forward and check the setti...

Page 19: ... are conducted with the tractor in park Unfolding Fig 9 1 The side section is lifted up by the carriers A with the tilt cylinder marked White Fig 10 2 The cylinders for unfolding and folding marked Red are activated and the side sections are completely folded 3 The tilt cylinders are activated and the drum is lowered to the ground 4 The cylinders for unfolding and folding marked Red are set in the...

Page 20: ...ns A are lifted as much as possible Fig 12 2 The tilt cylinders marked White are activated to full length and the drum is tilted free of the ground Fig 13 3 The unfolded and folded cylin ders are activated again and the side sections are folded in 4 The tilt cylinders are activated and the drum is lowered onto the transport hooks A ...

Page 21: ...cessary to adjust the pressure for the hydraulic weight transfer Likewise it may be necessary to drive with less or more pressure depending on soil conditions Too much pressure 1 The pressure on the outer edges of the side sections will be too great The rings are pressed too much into the soil and leave clear tracks outside the side sections 2 The mid section packs too little which can be seen as ...

Page 22: ...h but driving should always be done according to conditions If the speed is increased wear will also increase especially under dry condi tions There is also a risk of damaging the rings by driving at excessively high speeds under adverse conditions The power requirement is very dependent on the type of soil and terrain as well as the speed Table 2 Guide for power requirements in HP Working width c...

Page 23: ...g and Operating The bar is too low Align bar and central section see Bar Height Adjustment and Adjustment of Central Section The central section is not horizontal Align bar and central section see Bar Height Adjustment and Adjustment of Central Section The pressure var ies on the pres sure gauge when working in the field Accumulator is de fective Contact workshop Pilot controlled non return valve ...

Page 24: ...tance This ensures a strong level of flexibility in the crackerboard as opposed to a regular board as the entire planing does not need to be redone simply because of an ob stacle Fig 15 Power Compared with a regular board the crackerboard does not require as much power although this depends a lot on what kind of work the crackerboard is doing Table 3 The crackerboard s power requirements in HP 950...

Page 25: ...brating effect will be able to crush the tubers Fig 17 A deeper adjustment of the crack erboard gives a greater plane result similar to the plane board in which a small bank is built up in front of the teeth It is not the purpose of the crackerboard that it should act as a dozer blade but rather perform light tilling of the soil Since each tooth can move individ ually and thus provide local resist...

Page 26: ...ons to achieve the same working depth Fig 19 3 The side sections are mounted in the flanges A 4 The hydraulic cylinders are mounted Fig 20 5 The hydraulic cylinders in the centre are mounted and adjusted in the sliding rails A to achieve the same movement as the side sec tions 6 The hoses are mounted on the cylinders Fig 21 7 The hoses are fastened to the hose holders A not all hose holders can be...

Page 27: ...MINIMAX Page 27 It is important to ventilate the system thoroughly in order to prevent personal injury Which is why you should move the cylinders right out into the outer positions a couple of times ...

Page 28: ... screw connections must be tightened after the first day of work Cotter pins and bolts should be checked to avoid breakdowns The hydraulic sys tem should also be checked to ensure it is air tight Lubrication Fig 22 A B C D Lubrication points Num ber of nuts Lubrica tion interval hours Image Folding cylinder 8 8 A Rotation pin for tilt 2 8 B Rotation pin for unfolding the side sections 2 8 C Wheels...

Page 29: ...loosened in the same place on the axle a few times so that the bolts are bet ter attached to the axle Wheels The wheel bearing must be lubricated and adjusted once a year Also make sure you have the correct tyre pressure see tyres Adjustments and lubrication of wheel bearings 1 Hub cap is removed 2 The cotter is removed 3 The castellated nut is tightened with a 1 6 turn so that the hole is aligned...

Page 30: ...Positioned in the lower holes replace the slides so that no wear occurs on the crackerboard Hydraulics All hydraulic hoses must be checked for wear or damage Ensure the hoses are not subjected to any crushing If left parked for longer periods of time protruding plunger rods should be greased with oil or pressure grease in order to avoid the build up of rust on the plunger rod Remember to remove it...

Page 31: ...ics system and if necessary support the part Once the repair work on the hydraulics system is complete the system must always be vented before use to prevent mechanical breakdown and personal injury Hydraulics Changing out the cylinders for unfolding and folding the side sections Any repairs must be carried out with the drum unfolded and resting on its undercarriage Fig 25 1 The pressure is remove...

Page 32: ... necessary 6 All parts are cleaned and checked for chips burrs etc Check for rust around the scraper ring Item 5 in the cap If this is the case remove it Fig 26 MOUNTING 1 New seals are fitted in the cap and the sleeves The scraper ring pos 5 is mounted with the help of a tube that fits outside around the lip or special mandrel The cuff pos 9 on the sleeve is mounted with help of a round bar screw...

Page 33: ...MINIMAX Page 33 8 Screw the cap on and tighten ...

Page 34: ...installed 4 The cylinder can be uninstalled 5 New or repaired cylinders can be installed After mounting the cylinders are activated until a small amount of movement can be felt in the cylinders The cylinders are then activated in the opposite way until the cylinders are back in the starting position The cylinders are moved a few times in this way after which the cylinders are moved out in the oute...

Page 35: ...os 5 6 7 8 9 as well as the sleeve are removed 7 All parts are checked for chips burrs etc Check for rust around the scraper ring pos 5 in the cap If this is the case remove it Mounting 1 New seals pos 5 6 7 8 9 are fitted in the cap and the sleeve 2 The thread on the cap pos 3 and the cylinder tube pos 1 are lubricat ed with oil 3 The cap pos 3 is mounted on the piston rod 4 The sleeve pos 4 is m...

Page 36: ...way after which the cylinders are moved out in the outer positions a few times to air the system out There must never be people within the machine s operating radius Replacement of the gaskets for depth adjustment Fig 30 Cylinder 25 60 25 205 1 The cylinder is emptied of oil by moving the piston carefully back and forth 2 Move the piston into the centre position after which the end cap pos 3 is un...

Page 37: ... 3 The cap pos 3 is mounted on the piston rod 4 The sleeve pos 4 is mounted and the piston rod pos 2 is secured with Loctite Make sure the thread is completely clean and free of oil and other impurities before using Loctite Do not fill the oil within 12 hours of using Loctite 5 Lubricate the outermost seal on the part of the sleeve in contact with the cylinder tube as well as lubricating the inner...

Page 38: ... re moved 3 The castellated nut pos 19 is removed 4 The axle pos 2 can now be taken out 5 The bearings pos 17 18 are removed 6 The sealant ring pos 16 is removed Mounting 1 The outer rings of the bearings pos 17 18 are mounted in the hub casing pos 22 2 The sealant ring pos 16 is installed 3 The inner bearing ring pos 18 is mounted on the shaft pos 2 and the shaft is mounted in the hub casing 4 Th...

Page 39: ...s activated and the drum is tilted up onto the wheels 4 The rings can be pulled away from the drum If no crane is available the drum s folded cylinder can be easily activated and put in a position so that the bolts are loose and can be removed Mounting 1 The rings are placed in a position corresponding to the placement when the drum is unfolded 2 The drum is unfolded and tilted carefully down over...

Page 40: ...MINIMAX Page 40 from the drum 6 Mounting is carried out in re verse order The hydraulic system must not be activated when there are persons within the machine s operating radius ...

Page 41: ...ed towards the weight on the part in question It is therefore important that this part be supported or lifted up so there is no risk of collapse or overturning Hydraulic hoses and cylinders must be disconnected and any residual oil emptied out The oil is collected to avoid pollution Oil and hoses are sent for destruction All iron in the machinery can be sent for recycling ...

Page 42: ...50 13315 1 0 mm 13315 1 0 mm 91028 2080 X 700 Accumulator 1 0 L 25 Bars 91028 2080 X 700 Manometer 27398 Kovira valve single Tractor pump and valve Tractor pump and valve Important Float position Wichtig Fluss Stellung Important Float position position de flottement Tilting cylinder white Wing fold cylinder Red MINIMAX 950 ...

Page 43: ...IMAX Page 43 Additional Equipment Crackerboard Fig 35 MINIMAX 950 Lamelplanke Crackerboard Grøn Green Grün 13315 1 0 mm Tractor pump and valve 91792 25 60 25 X 205 91792 25 60 25 X 205 91792 25 60 25 X 205 ...

Page 44: ...MINIMAX Page 44 Spare parts ...

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