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DALBO MINIMAX 450, User Instructions

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DALBO MINIMAX 450 User Instructions Download Page 38

 
 
 

 

Page 38 

Additional Equipment - Changing the cylinder to the cracker board 

 

Fig. 28 

1.

 

MINIMAX is unfolded while rest-
ing on the ground. 

2.

 

The cracker board is lowered and 
the pressure is removed from the 
hydraulic system. 

3.

 

The hoses are disconnected from 
the cylinders. 

4.

 

Bolts,  cotter  pins  and  rivets (B) 
are removed. 

5.

 

A  new  or  repaired  cylinder (A)  is 
mounted. 

6.

 

Remember  to  install  the  cotter 
pins in the rivets. 

 

 

 

 

 

After mounting, the tilt cylinder is activated until a small amount of movement can 
be felt in the cylinder. The cylinder is then activated in the opposite direction until 
the cylinder is back at the starting position. The cylinder is moved in this way a few 
times, whereupon the cylinder is moved out to the outer positions a few times to 
air the system out. 

 

 

No individuals should ever be present within the tool’s action radius. 

 

Replacement of the gasket set for depth adjustment 
 Fig. 29 

 

Cylinder 25/60/25-205 

 
1

 

The cylinder is emptied of oil by carefully moving the piston back and forth. 

2

 

Move the piston to the middle position, then unscrew the end cap (pos. 3) 
from the cylinder tube (pos. 1). A special tool must be used to remove the 
cap. If the cap is really stuck, it may help to warm up the front of the upper 
cap. When the cap is unscrewed from the cylinder tube, pull the piston 
towards the cap. The piston rod can then be removed from the cylinder 
tube (pos. 1). 

3

 

The piston rod (pos. 2) that holds the sleeve (pos. 4) in place is removed. 

4

 

The sleeve (pos. 4) is removed from the piston rod (pos. 5). 

5

 

The cap (pos. 3) is pulled off the piston rod (pos. 5). 

A 

B 

B 

3 

1 

2 

4 

5 

Summary of Contents for MINIMAX 450

Page 1: ...MINIMAX User instructions Date of publication 01 2021 Date printed 01 2021 Language EN Type MINIMAX 450 830 Product no MINIMAX 450 830 Serial no 50949 xxxxx ...

Page 2: ... 2 ...

Page 3: ...umber A spare parts list is included at the back of this manual EU DECLARATION OF COMPLIANCE DALBO A S DK 7183 Randbøl declares herewith that the above machine is manufactured in accordance with the pro visions of directive 2006 42 EC which replaced directive 98 373 EC and change direc tives 91 368 ECC 93 44 ECC and 93 68 ECC on harmonisation of member state legis lation concerning health and safe...

Page 4: ...RRECT USE 12 TECHNICAL DATA 13 HOW TO READ THE 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 DRAWBAR 17 SETTINGS 18 TENSILE ADJUSTMENT 18 DRIVING AND OPERATION 20 UNFOLDING AND FOLDING 20 Unfolding 20 Folding 21 DRIVING SPEED 22 TROUBLESHOOTING 23 EXTRA EQUIPMENT 24 CRACKER BOARDS 24 ...

Page 5: ...g the side sections 33 Changing the tilt cylinder 36 Change of gasket set on the tilt cylinder 37 Additional Equipment Changing the cylinder to the cracker board 38 Replacement of the gasket set for depth adjustment 38 REMOVING MOUNTING WHEELS ON THE ROAD 40 REMOVING MOUNTING WHEELS ON THE GROUND 40 Replacing the bearings 41 DISMANTLING THE DRUM BODY 42 Replacement of the drum body on the side sec...

Page 6: ... 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 plastic...

Page 7: ...e 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 shall b...

Page 8: ...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 these...

Page 9: ...ntenance 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 dr...

Page 10: ... 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 accident...

Page 11: ...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 con nected Pay the maximu...

Page 12: ...he wheels of the tractor and machine from any pres ence 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 only...

Page 13: ...mbi 55 3740 4940 5095 Sections pcs 3 3 3 3 3 Hydraulic require ments 1 DV 1 EV1 X X X X X 1 DV for cracker boards X X X X X Gross weight of extra equipment kg Cracker boards 490 530 550 600 630 Air brakes 180 180 180 180 Hydraulic brakes 150 150 150 150 Axle load kg 0 73 x gross weight 0 72 x gross weight 0 72 x gross weight 0 71 x gross weight 0 71 x gross weight Support load kg 0 27 x gross weig...

Page 14: ...on 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 a platform truck If the drum needs to be lifted it is recommended that it is rigged with straps in the middle section and secured with a drawbar so that the machine is bal anced See page 9 section on Ge...

Page 15: ...owing to improve sprouting and push down stones Optionally MINIMAX can be fitted with hydraulic cracker boards The main application of the cracker board is to prepare the soil for sowing The vibrating effect of the teeth decomposes tubers processes and aligns the raw ploughed soil as well as the previously prepared ground If you do not wish to use the cracker board tilt it upward and the machine c...

Page 16: ...ds and the single acting output raises low ers tilts the drum If a cracker board is fitted a double acting outlet is required Table 2 Hose labels Cylinder name Colour Outlet Function Tilt cylinders White Single acting Lift the drum up on the wheels and down ward into working mode Folding Red Double acting Folds the side sections together out Check that the hydraulic hoses have not been crushed The...

Page 17: ...e 17 Drawbar Some countries require a special turn able drawbar like shown on the picture below Setup on this drawbar type must be done exactly the same way than described in section Setting up on page 18 ...

Page 18: ... order to achieve uniform pressure on the ground the bar must be adjusted cor rectly for the tractor con cerned Measured where the arrow is indicated in the picture Height under drawbar See table below Table 3 Drawbar height Ring Type 450 530 630 760 830 50 cm cambridge 50 cm 58 cm 58 cm 57 cm 57 cm 55 cm cambridge 53 cm 61 cm 61 cm 60 cm 60 cm 60 cm cambridge 63 cm 63 cm 62 cm 62 cm 53 cm crosski...

Page 19: ...Page 19 To ensure correct settings it is important that the machine is on a horizontal surface when the setting is set ...

Page 20: ...olding Unfolding and folding are conducted with the tractor in parked position Unfolding Fig 8 1 The side section is lifted up by the carriers A with the tilt cylinder marked White Fig 9 2 The cylinders for unfolding and folding marked Red are acti vated 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 unfoldin...

Page 21: ... and the drum is tilted away from the ground Fig 12 3 The foldable and unfoldable cylinders 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 Before transport by road it is very important that the machine is cleaned to such an extent that no earth stone or plant remains are spilled on pub lic roads A A ...

Page 22: ...ll also increase especially under dry conditions 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 work width and terrain as well as speed See Technical data table Table 4 Guide for power requirements in HP Working width cm all Power HP 120 200 ...

Page 23: ... Height Adjustment The middle section is tilting backwards Adjust the bar height downwards The outer parts of the side sections are pressing too much Too little pressure on the middle sec tion The hydraulic handle for folding out in is activated so that it is in the float position The bar is too low Adjust bar and middle section see Bar Height Adjustment The side sections are not following the ter...

Page 24: ... that they give after meeting resistance locally This ensures a strong level of flexibility in the cracker board as opposed to a regular board as the entire levelling process does not need to start over simply because of an obstacle Fig 13 Power Compared to a regular board the cracker board does not require as much power although a lot depends on the kind of work the cracker board is doing Table 5...

Page 25: ...m the teeth with their vibrating effect will be able to crush the tubers Fig 15 A deeper adjustment of the cracker board will give 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 cracker board to act as a dozer blade but rather to perform light tilling of the soil Since each tooth can move individually and thus ...

Page 26: ...olts B and secure with a counter nut so the mounting is sideways parallel to the drive and has approx 1 cm clearance in C Finally tighten D Fig 17 3 Mount the side sections ac cording to the drawing pro vided by the DALBO A S A 4 Mount the hydraulic cylin ders A Fig 18 5 Mount the middle hydraulic cylinder as shown A with the nipples facing down wards 6 Make sure that the plate B does not touch th...

Page 27: ...ction 8 The hoses are fastened to the hose holders arrow not all hose holders can be seen in the figure It is important to ventilate the system thoroughly in order to prevent personal injury For this reason the cylinders should be moved straight out into the outer positions a couple of times ...

Page 28: ...ey or bolt raise the support leg and set in working position B Remember to secure the lift arm balls with lynch pins or similar Remember to secure the supporting legs with a lynch pin or similar Adjust the lift arm so the draw bar height fits see Adjust ment of draw bar height section Hydraulic hoses and a lamp cord are fitted so that they are not damaged during operation A B ...

Page 29: ...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 21 A B C D E F Lubrication points Number of nipples Lubrication interval hours Images Tilt cylinders 2 8 A Rotation pin for tilt flap 3 8 B Cylinders for cracker boards 6 8 C Bearings 6 50 D Cylinders flap 630 x 60 Cambridge ...

Page 30: ...djustment of fittings is best done with the MINIMAX folded Fig 22 1 The bolts A are loosened and the fittings pushed together 2 The bolts in the stop rings are tightened and loosened in the same place on the axle a few times so that the bolts better grip onto the axle Wheels The wheel bearing must be adjusted once a year Also make sure you have the cor rect tyre pressure see tyres and table in the...

Page 31: ...e 31 Tyre pressure In the tables below you can see the load speed and tyre pressure relative to each other for the different tyre combinations 300 80 15 3 Starco 400 60 15 5 Alliance 10 0 75 15 3 Alliance ...

Page 32: ...ut Positioned in the lower holes replace the slides so that no wear occurs on the cracker board 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 remov...

Page 33: ...hat the machine cannot move or start accidentally For all repair work on the hydraulics always pay close attention to safety Before starting any 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 or per sonal injury Hydraulics C...

Page 34: ...rs are then activated in the opposite direction until the cylinders are back in the starting position The cylinders are moved in this way a few times The drum is then tilted up onto the wheels and the side sections move out completely into the outer positions to air out the system No individuals should ever be present within the tool s action radius ...

Page 35: ...ck for rust for mation around the scraper ring pos 5 in the cap If this is the case remove it Fig 25 MOUNTING 1 New seals are mounted in the cap and sleeve The scraper ring pos 5 is mounted with the help of a piece of tubing that fits externally around the lip or special mandrel The cuff pos 9 on the sleeve is mounted using a round bar screwdriver 2 The thread on the cap and cylinder tube are lubr...

Page 36: ...talled 4 The cylinder can be uninstalled 5 New or repaired cylinders can be installed After mounting the tilt cylinder is activated until a small amount of movement can be felt in the cylinder The cylinder is then activated in the opposite direction until the cylinder is back at the starting position The cylinder is moved in this way a few times whereupon the cylinder is moved out to the outer pos...

Page 37: ... pos 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 sleeve 2 The thread on the cap pos 3 and the cylinder tube pos 1 are lubricated with oil 3 The cap pos 3 is mounted on the piston rod 4 The sleeve pos 4 is inst...

Page 38: ... the cylinder is moved out to the outer positions a few times to air the system out No individuals should ever be present within the tool s action radius Replacement of the gasket set for depth adjustment Fig 29 Cylinder 25 60 25 205 1 The cylinder is emptied of oil by carefully moving the piston back and forth 2 Move the piston to the middle position then unscrew the end cap pos 3 from the cylind...

Page 39: ... sleeve pos 4 is mounted and the piston rod pos 2 is secured with Loctite Make sure the thread is absolutely clean and free of oil and other impurities before using Loctite Do not fill with oil within 12 hours of using Loctite 5 Lubricate the outermost seal on the sleeve that comes in contact with the cylinder tube and the cylinder tube internally with oil and push the piston into the middle posit...

Page 40: ...el nuts may loosen It is important that the lifting device is able to manage 75 of the machine s total weight In addition the machine must be properly braked and secured Fig 30 Removing mounting wheels on the ground To remove wheels unfold the drum with the rings resting on the base The wheels will not therefore touch the ground The wheel nuts are removed and the wheel can be replaced After instal...

Page 41: ... is installed 3 The inner bearing ring pos 18 is installed on the shaft pos 2 and the shaft is installed in the hub casing 4 The inner bearing ring pos 17 is installed on the shaft pos 2 5 The castellated nut is screwed onto the shaft pos 2 while the hub cas ing pos 22 is rotated The castellated nut is tightened to the slowly rotating hub casing Then loosen the castellated nut a quarter turn or un...

Page 42: ...ly until the bolts A are loose and can be removed 3 The tilt cylinder is activated and the drum is tilted up onto the wheels 4 Be aware that the hook for transport at the outer bearing plate can catch the axle when the drum is tilted up onto the wheels 5 The rings can be rolled away from the drum If no crane is available the drum s folded cylinder can be easily activated and put in a position so t...

Page 43: ...ards the wheels the drum rings sup port the base and the bolts are loose 3 Remove the bolts 4 The drum is tilted up onto the wheels 5 The rings can be rolled away from the drum 6 Mounting is carried out in the reverse order The hydraulic system must not be activated when there are persons within the machine s operating radius A ...

Page 44: ...ds the load on the part in question It is therefore important that this part be sup ported or lifted to avoid risk of collapse or overturning Hydraulic hoses and cylinders must be disconnected and any residual oil re moved The oil must be collected to avoid pollution Oil and hoses must be sent for destruction All iron parts to the machinery can be sent for recycling ...

Page 45: ...Page 45 Hydraulic diagram ...

Page 46: ...Page 46 ...

Page 47: ...Page 47 ...

Page 48: ...Page 48 Spare parts ...

Page 49: ...Page 49 ...

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