DALBO MaxiRoll 950 User manual

MaxiRoll
EN
Instruction Manual
950, 1030 cm

MaxiRoll
Type 950, 1030 cm
Congratulations on the purchase of your new MaxiRoll. For safety reasons and to
achieve optimum service from the product, please read the User Guide before use.
©Copyright 2008. All rights reserved, DAL-BO A/S
This product has:
Type no.:
Serial no.:
Month of manufactu-
re:
Net weight kg:
If contacting the manufacturer regarding spare parts or service, please state type and
serial number. A spare parts list is included at the back of this manual.
EU DECLARATION OF COMPLIANCE
DAL-BO A/S
DK-7183 Randbøl
declares herewith that the above machine is manufactured in accordance with the provi-
sions of directive 2006/42/EC, which replaced directive 98/37/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 safety requirements related to the construction and manu-
facture of machines.
This machine corresponds to the safety requirements in the European Safety Guide-
lines.
DAL-BO A/S
Date:
Managing Director Kaj Pedersen
CE

Table of Contents
SAFETY..........................................................................................................................6
GENERAL ......................................................................................................................6
HYDRAULICS.................................................................................................................7
ASSEMBLY ....................................................................................................................7
MAINTENANCE AND REPAIR ..........................................................................................7
ROAD TRANSPORT.........................................................................................................7
CORRECT USE................................................................................................................8
TECHNICAL DATA.....................................................................................................9
HOW TO USE THIS MANUAL ................................................................................10
DELIVERY ...................................................................................................................10
USES..............................................................................................................................11
CONNECTING AND DISCONNECTING ...............................................................12
CONNECTING...............................................................................................................12
HYDRAULICS...............................................................................................................12
DISCONNECTION..........................................................................................................13
SETTING UP................................................................................................................14
ADJUSTING DRAWBAR HEIGHT ....................................................................................14
Adjustable drawbar................................................................................................14
Adjusting mid-section.............................................................................................15
ADJUSTING FOLD STOP ................................................................................................16
OPERATION ...............................................................................................................17
EXTENDING AND RETRACTING.....................................................................................17
Extending ...............................................................................................................17
ADJUSTMENT OF HYDRAULIC WEIGHT TRANSFER ........................................................19
Excessive pressure .................................................................................................20
Insufficient pressure...............................................................................................20
OPERATING SPEED.......................................................................................................20
Power.....................................................................................................................20
TROUBLESHOOTING ..............................................................................................21
ACCESSORIES ...........................................................................................................22
CRACKERBOARD .........................................................................................................22
Power.....................................................................................................................22
Hose markings........................................................................................................23
Adjusting angle of tines..........................................................................................23
Fine adjustment of crackerboard sections.............................................................23
Operation...............................................................................................................24
Retrofitting.............................................................................................................25

Locking set .............................................................................................................26
MAINTENANCE.........................................................................................................27
LUBRICATION..............................................................................................................27
ADJUSTMENT...............................................................................................................28
Adjustment of rollers..............................................................................................28
Wheels ....................................................................................................................28
Tips.........................................................................................................................28
HYDRAULICS...............................................................................................................29
REPLACEMENT ANDREPAIRS .............................................................................30
HYDRAULICS...............................................................................................................30
Replacing extend cylinder for retracting side sections..........................................30
Replacing gasket set for extend/retract cylinder....................................................31
Assembly.................................................................................................................32
Replacing raise/lower cylinder..............................................................................32
Replacing gaskets on raise/lower cylinder ............................................................33
Assembly.................................................................................................................33
Replacing crackerboard depth-adjustment cylinder..............................................34
Replacing gasket set for depth adjustment.............................................................34
Assembly.................................................................................................................35
REMOVAL/FITTING WHEEL...........................................................................................35
Replacing wheel bearings......................................................................................36
REMOVING ROLLER AXLES ..........................................................................................36
Replacing side section axles...................................................................................36
Fitting axles with roller rings ................................................................................37
Replacing the centre axle.......................................................................................37
REPLACING AXLES,BEARINGS OR ROLLER RINGS.........................................................38
Crosskill ring..........................................................................................................38
SCRAPPING.................................................................................................................39
SPARE PARTS.............................................................................................................40

MaxiRoll
Page 6
Safety
This symbol appears in the instruction manual each time there is a safety
warning concerning your safety, the safety of others or functionality of the
machine. All safety instructions must be observed and made available to all
users of the machine.
General
Ensure you are familiar with all aspects of the machine before use
There are safety stickers on the machine containing important instructions
for the safety of yourself and others, and correct use of the machine.
Do not carry passengers during operation or transport.
Ensure there are no personnel within the machine's working radius before
operating. Operate machine only from inside the tractor.
When the machine is folded together, check the side sections are locked.
Check all control handles are secured against accidental operation.
Before leaving the tractor or making adjustments, performing maintenance
or repairs on the roller, extend fully and lower to ground, or maintain in
transport position, apply tractor handbrake, switch engine off and remove
ignition key to secure the machine against accidental operation.
Remember to secure support leg and lift arm (if relevant) with split rings.
Never leave driver's seat whilst machine is moving.
Always adapt speed to conditions.
Do not use machine unless all safety devices are in place. Defective safety
devices must be replaced immediately.

MaxiRoll
Page 7
Hydraulics
Lower machine fully for any repair work on the hydraulic system. Relieve
hydraulic pressure, switch engine off and remove ignition key.
Clean hydraulic connections thoroughly before reconnecting. When con-
necting hydraulic hoses to tractor hydraulics, ensure they are not under
pressure.
Bleed the hydraulic system thoroughly after any repairs.
Check hydraulic hoses regularly for defects such as cracks, splits, crimps,
wear or breaks. Defective hoses must be replaced immediately.
Avoid spilling oil on the ground. If oil is spilt, collect and deliver to a de-
struction point.
Clean hands thoroughly after contact with oil and grease. Change oil-
stained clothing immediately. Hydraulic oil can be harmful to the skin.
Hydraulic oil released under high pressure can penetrate the skin and
cause severe injury. In the event of injury, seek medical help immediately.
Assembly
Danger of crushing! Ensure no personnel are between implement and
tractor, or between the parts to be connected.
Maintenance and repair
Ensure machine is adequately supported or fully extended for all repair
and maintenance work. Ensure tractor and machine are properly braked,
engine stopped and ignition key removed.
Tighten all screw connections after a few hours use. Check all screw con-
nections regularly and tighten as required. Check all split pins and bolts to
avoid mechanical failure.
Dispose of oil, grease and filters in accordance with local environmental
protection rules.
Road transport
All safety and warning precautions mandatory by law must be fitted and
tested before transporting the machine on public roads. The driver is re-
sponsible for correct lighting and warning signs in accordance with traffic
regulations.

MaxiRoll
Page 8
Check with local traffic authorities whether transport on public roads is al-
lowed given the machine's dimensions.
When transporting, ensure permitted total weight for tractor is not exceed-
ed and that loading on tractor front axle is not less than 20% of tractor net
weight. If this is the case, use weights on tractor front
Correct use
Correct use of the machine includes observing the manufacturer's operat-
ing, maintenance and repair instructions, and that original spare parts are
always used.
The roller may only be used, maintained or repaired by personnel familiar
with it and who are aware of the risks that can be involved.
The manufacturer cannot be held liable for injury or damage arising from
modifications made to the machine performed without prior permission
from the manufacturer. Neither can the manufacturer be held liable for in-
jury or damage arising from incorrect use. Such liability rests solely with
the user.
Do not add extra weight to the machine

MaxiRoll
Page 9
Technical data
MaxiRoll
Size (cm)
950
1030
HP (recommen-
ded)
180-250
200-
220
Gross weight
kg:
Cambridge 50
5100
5200
Cambridge 55
5750
5900
Crosskill 60
5750
5900
Crosskill 53
4260
4450
Sections (pcs.)
5
5
Accessories
Crackerboard
(kg)
1125
-
Wheels
MaxiRoll 5 part: 400/60 x 15.5

MaxiRoll
Page 10
How to use this manual
The sequence of subject matter in this manual can seem illogical. Please refer
to the table of contents for page numbers for individual items.
The manual is divided into 5 main sections:
Safety
Starting routine and running
Accessories
Maintenance
Repairs
The following symbols represent:

Points which are important to functionality and service
life.
Points relevant to safety.
Delivery The machine is delivered complete on a trailer.
If lifting the roller, we recommend the use of straps on the mid-section and
drawbar to maintain balance.

MaxiRoll
Page 11
Uses
MaxiRoll is an extra-heavy roller designed specifically for the mounting of
extra equipment for soil preparation.
MaxiRoll is a three-piece roller, on which the sections are independent of each
other. Hydraulic weight transfer is standard on all models.
MaxiRoll 950/1030 has five axles.
Fig. 1
MaxiRoll 950
MaxiRoll is used prior to sowing to crush lumps and afterwards to prepare for
shooting and to break down stones. MaxiRoll can also be used for breaking up
a compressed soil surface in wheat fields or grassed areas.
Can be fitted with accessories, such as hydraulic crackerboard.
The main purpose of the crackerboard is preparation for sowing. The vibrating
effect of the teeth breaks up lumps, preparing and levelling ploughed and pre-
prepared fields. If the crackerboard is not required, it can be raised and Maxi-
Roll used exclusively as a roller.

MaxiRoll
Page 12
Connecting and disconnecting
Connecting
Fig. 2
Connect roller to the tractor's fixed
towbar, where drawbar (A) must fit
between the towbar forks.
Insert pin and raise leg.

Remember to secure towbar pin with split pin or the
like.
Remember to raise the support leg

If tractor towbar is too short, its lift arms can collide
with the roller's support leg if cornering sharply to the
left. Avoid by extending tractor towbar.
Hydraulics The roller requires as standard a double-acting and single-acting hydraulic
outlet, where the double-acting is used for extending and single-acting for
raising/lowering.
Table 1. Hose markings
Cylinder name
Colour
Outlet
Function
Raise/lower
cylinder
White
Single acting
Raises MaxiRoll onto its
wheels and down into work-
ing position.
Fold/weight
equalisation
Red
Double acting
Folds side sections up/out and
acts as weight equalisation
from mid-section to side sec-
tions.

Flow position is required on the outlet to which
fold/weight transfer is connected.
Check hydraulic hoses for crimping
A

MaxiRoll
Page 13
Disconnection The roller must be folded up (transport position) or extended before discon-
nection.
Lower support leg to lift roller drawbar from tractor towbar. Remove pin and
disconnect hydraulic hoses.
Remember to depressurise hoses before disconnecting
them.

MaxiRoll
Page 14
Setting up
The machine is supplied with factory settings, but fine adjustment will always
be required before use. Numerous adjustment options make the roller more
flexible and ensure maximum use.
Adjusting drawbar height
To achieve uniform rolling, the bar (A, Fig. 3) on the mid-section must be
parallel with the ground and the drawbar (B, Fig. 3) correctly positioned in re-
lation to the tractor. There are two adjustment options to achieve the optimum
position.
Fig. 3
Adjustable drawbar
Incorrect drawbar height can cause uneven operation, as the roller will not ap-
ply equal pressure for all sections.
Fig. 4
To achieve the correct drawbar
height, the drawbar eye can be ad-
justed relative to tractor towbar
height.
Stand MaxiRoll on support leg.
Slacken bolts (A) and adjust draw-
bar to tractor.

If MaxiRoll is fitted with a crackerboard, see ”Fine adjust-
ment of crackerboard sections” under ”Accessories”
A
B
A

MaxiRoll
Page 15
Adjusting mid-section
Fig. 5
Extend MaxiRoll fully (see
”Operation”). Check pipe (A, Fig. 3)
on the mid-section is horizontal
(parallel with the ground).
If it is not, adjust the bolts (A, Fig. 5).
Fig. 6
1. Slacken the lock bolt (A)
2. Adjust bolt (B) up/down
3. Tighten the lock bolt (A)
4. Check frame is horizontal
and that the drawbar height
is correct.
5. If the bolts (B) are not
aligned with the draw bar,
pull the tractor forward a
little
Fig. 7
A pendulum (A) is fitted to the
mid-section as an aid to adjust-
ment, which must be flush with the
non-adjustable part.

Always ensure machine is on a level surface to ensure cor-
rect setting.
A
A
B
A

MaxiRoll
Page 16
Adjusting fold stop
Fig. 8
To ensure correct positioning of the
side sections during transportation,
the side section backstop can be
adjusted
A

MaxiRoll
Page 17
Operation
Correct operation is vital for optimum use. This applies to working in the field
and for safety. Always ensure you are fully familiar with all safety aspects of
the machine.
Extending and retracting
Extending and retracting the machine must always be performed with tractor
parked.

Before extension and folding, check crackerboard is fully
raised to avoid teeth colliding (see "Accessories, Crack-
erboard")
Extending
Fig. 9
1Lift side sections from
transport hook (A) using
raise/lower cylinder (marked:
White).
Fig. 10
2Activate extend/retract cyl-
inder (marked: Red) to fully
extend side sections.
3Activate raise/lower cylinder
to lower roller to ground. Set
raise/lower cylinder in flow
position (see ”Setting up”).

Before starting rolling, ensure weight transfer is correctly
adjusted (see ”Adjustment of hydraulic weight transfer”).
A

MaxiRoll
Page 18
Relieve pressure from weight transfer to side sections (see ” Adjustment of
hydraulic weight transfer”).

If there is a crackerboard fitted, check it is fully raised
before starting folding (see "Accessories, Crackerboard,
Operation")
Fig. 11
1. Activate extend/retract cyl-
inders (marked: Red) to full
length, so that the outer side
sections (A) are raised a lit-
tle.
A

MaxiRoll
Page 19
Fig. 12
2 Activate raise/lower cylinder
(marked: white) to full
length and the roller is lifted
off the ground.
Fig. 13
3. Activate the extend/retract
cylinders once more, and
the side sections will retract
(extend/retract cylinders
will now be fully retracted).
4. Activate the raise/lower
cylinder and the roller
will be lowered into the
transport rests.
Adjustment of hydraulic weight transfer
Hydraulic weight transfer distributes the weight evenly between all roller sec-
tions.
1. Once the roller is extended, depressurise the extend/retract cylinder
(marked: Red), and then activate the cylinder control handle in the op-
posite direction (retract cylinder).
Fig. 14
2 After a moment, the the ma-
nometer will flicker. Pressure
will increase (on the plus side
of the cylinder, which will
extend) to about 15 bar
(A)
3Set cylinders to flow setting. Flow setting is necessary to achieve hy-
draulic weight transfer, allowing the sections to move independently
4The pressure for hydraulic weight transfer may need adjustment. It can
also be necessary to adjust pressure according to soil conditions.
A

MaxiRoll
Page 20
Excessive pressure
1Pressure on the side section outer rings will be too high. The rings will
be pressed too heavily into the soil leaving a clear groove after the side
sections.
2The mid-sections will not apply sufficient pressure, leaving the soil
higher and not as compressed as the sides.
Insufficient pressure
1The pressure on the side section outer rings will not be high enough to
press the outer rings sufficiently down to give an even finish.
2The mid-sections will compress too much, leaving the soil lower than
the sides.

To prolong service life and the final result in the field,
MaxiRoll must be set in flow setting when working
in the field.

Failure to do so is incorrect use and can cause the
frame to break in the worst scenario.
Check all the accumulators on the machine at least once
a year for leaks and to ensure that the precharge
pressure is set correctly. Contact an authorized Dal-Bo
dealer for more information.
Operating speed
An operating speed of 6-10 km/h is recommended, but always operate accord-
ing to conditions.
Increased speed will increase wear, particularly in dry conditions. The rings
can also be damaged if operating at excessive speeds in unfavourable condi-
tions.
Power
Power requirement will depend on soil type, terrain, speed and roller rings.
Table 2, Guide to power requirement in HP (with crackerboard)
Model (cm)
950
1030
HP
(recommended)
180-
250
200-
220