DALBO CULTILIFT 300 User manual

FRONTGRUBBER
Front-mounted grubber
EN
300/400/400H/600H cm

FRONTGRUBBER
Type 300/400/400H/600H cm
Congratulations on the purchase of your new front grubber. For safety reasons and to achieve
optimum service from the product, please read the User Guide before use.
©Copyright 2002. All rights reserved, DALBO A/S
This product has:
Type no.:
Serial no.:
Month of
manufacture:
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
DALBO A/S
DK-7183 Randbøl
declares herewith that the above machine is manufactured in accordance with the provisions
of directive 2006/42/EC, which replaced directive 98/37/EC and change directives
91/368/ECC, 93/44/ECC and 93/68/ECC on harmonisation of member state legislation con-
cerning health and safety requirements related to the construction and manufacture of ma-
chines.
This machine corresponds to the safety requirements in the European Safety Guidelines.
DALBO A/S
Date:
Carsten Jensen, CEO
CE

Table of Contents
SAFETY.......................................................................................................................................... 6
GENERAL ..................................................................................................................................................6
HYDRAULICS ..............................................................................................................................................7
MOUNTING ................................................................................................................................................7
MAINTENANCE AND REPAIR ..........................................................................................................................7
ROAD TRANSPORT .......................................................................................................................................8
CORRECT USE.............................................................................................................................................8
TECHNICAL DATA........................................................................................................................... 9
HOW TO USE THIS MANUAL.......................................................................................................... 10
USES ........................................................................................................................................... 11
CONNECTING AND DISCONNECTING ............................................................................................ 12
CONNECTING .......................................................................................................................................... 12
Lift arm angle ............................................................................................................................... 12
HYDRAULICS ...........................................................................................................................................12
DISCONNECTION...................................................................................................................................... 13
SETTING UP ................................................................................................................................. 14
ADJUSTING DEPTH ................................................................................................................................... 14
ADJUSTING CHAIN .................................................................................................................................... 15
ADJUSTING SIDEBOARD............................................................................................................................. 15
ADJUSTING PRESSURE OF HYDRAULIC STONE GUARD...................................................................................... 16
OPERATION ................................................................................................................................. 17
WORKING DEPTH ..................................................................................................................................... 17
OPERATING SPEED ................................................................................................................................... 17
Power............................................................................................................................................. 17
TROUBLESHOOTING.................................................................................................................... 18
MAINTENANCE ............................................................................................................................ 19
LUBRICATION .......................................................................................................................................... 19
HYDRAULICS ...........................................................................................................................................20
REPLACEMENT ANDREPAIRS....................................................................................................... 21
REPLACING STONE GUARD CYLINDER ..........................................................................................................21
Replacing gaskets on stone guard cylinder............................................................................ 22
Mounting....................................................................................................................................... 22
REPLACING WEAR PARTS........................................................................................................................... 22
SCRAPPING ................................................................................................................................. 24
SPARE PARTS .............................................................................................................................. 25

FRONTGRUBBER
Side 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 ma-
chine.
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 oper-
ating. Operate machine only from inside the tractor.
•Before leaving the tractor or making adjustments, performing maintenance or
repairs on the grubber, fully 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 the lift arm with a split pin.
•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 de-
vices must be replaced immediately.

FRONTGRUBBER
Side 7
Hydraulics
•Ensure there are no personnel within the machine's working radius when acti-
vating the hydraulic system to avoid danger of crushing.
•Lower machine fully for any repair work on the hydraulic system. Relieve hy-
draulic pressure, switch engine off and remove ignition key.
•Clean hydraulic connections thoroughly before reconnecting. When connecting
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 destruction
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 se-
vere injury. In the event of injury, seek medical help immediately.
Mounting
•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 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 connec-
tions 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 protec-
tion rules.

FRONTGRUBBER
Side 8
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 responsible for
correct lighting and warning signs in accordance with traffic regulations.
•Check with local traffic authorities whether transport on public roads is allowed
given the machine's dimensions.
•When transporting machine, ensure tractor total weight and axle pressure are
not exceeded.
Correct use
•Correct use of the machine includes observing the manufacturer's operating,
maintenance and repair instructions, and that original spare parts are always
used.
•The grubber 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 modifi-
cations made to the machine performed without prior permission from the
manufacturer. Neither can the manufacturer be held liable for injury or damage
arising from incorrect use. Such liability rests solely with the user.
•Do not add extra weight to the grubber.

FRONTGRUBBER
Side 9
Technical data
Front Grubber
Size (cm)
300
400
HP (recommended)
80-100
100-125
Gross weight kg:
1350
1610
Wheels (2 pcs.)
10.0/75 x 15.3
10.0/75 x 15.3
Working width (m)
3
4
Number of teeth
9
13

FRONTGRUBBER
Side 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 4 main sections:
•Safety
•Operation (Settings, Running and Operation)
•Maintenance
•Repairs
The following symbols represent:

Points which are important to functionality and service life.
Points relevant to safety.

FRONTGRUBBER
Side 11
Uses
The Front Grubber is a front-mounted universal implement which can be
used for a range of field tasks. In combination with e.g. a Maxi Disc on the
back of the tractor, two operations can be performed with one pass. Ideal
applications are on grass or where there are large quantities of plant resi-
due.
When sowing with various special sowing machines such as a rotary harrow
sowing set and towed disc cutting machines, the Front Grubber is particu-
larly effective at breaking up the soil before sowing, and loosening a plough
sole down to a depth of 30 cm.

FRONTGRUBBER
Side 12
Connecting and disconnecting
Connecting
Fig. 1
Fit lift arms first using lift pins (A).
Attach chain (supplied) to top mount.
Remember to secure attachment using split pins and check lift arm hook lock
mechanism is engaged.
Lift arm angle
Ensure that tractor lift arms achieve an angle a couple of degrees over- or at least
horizontal when implement is lowered to the ground. This will enable the implement
to roll over obstructions as the tractor will force it up at an angle and still retain con-
trol. Chain on top mount should be loose when implement is fully lowered.
Hydraulics
A single-acting hydraulic outlet is required on front of tractor to adjust the hydraulic
stone guard system.
A

FRONTGRUBBER
Side 13
Disconnection
Lower FRONTGRUBBER to ground before disconnecting. Disconnect hydraulic hoses
and lift arms. Disconnect light if relevant.
Remember to depressurise hoses before disconnecting them.Ball cock must be
closed before disconnection. Failure to do so will cause pressure loss. Machine will
drop to ground.

FRONTGRUBBER
Side 14
Setting up
The FRONTGRUBBER is supplied with factory settings, but fine adjustment will al-
ways be required before use. Numerous adjustment options make the machine
more flexible and ensure maximum use.

Basic setting will ensure the Front Grubber will run horizontally. This basic setting
is important to achieve an even field surface and uniform working depth.
Adjusting depth
Set depth using the drilled plates (A) on wheels and using tractor lift arms. Both sec-
tions of frame must be horizontal. A driver-operated electronic depth control mount-
ed on the tractor is recommended. Contact Dalbo for details.
Fig. 2
A

FRONTGRUBBER
Side 15
Adjusting chain
Fig. 3
Chain on top mount (A) should be
loose when implement is fully low-
ered. This will ensure uniform depth,
control over the machine and opti-
mum weight equalisation on tractor
front wheels.
Adjusting sideboard
Fig. 4
To ensure an even surface at the out-
side of the operating width, the grub-
ber is fitted with a sideboard (A),
which can be height-adjusted using a
spindle (B).
A
A
B

FRONTGRUBBER
Side 16
Adjusting pressure of hydraulic stone guard
Hydraulic system pressure must be adjusted according to soil type. Very hard soil
will require much higher pressure than sandy soils.
A pressure of max. 120 bar is recommended for most conditions. 120 bar. Remem-
ber to close ball cock on feeder hose when pressure has been adjusted.
Fig. 5

FRONTGRUBBER
Side 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.
Working depth
The Front Grubber can be set for a very light effect. Depth can be controlled very
precisely by the wheels and tractor lift arms. As such, it can be set for very light ef-
fect at a depth of only 5 cm approx. Working at this depth will only lightly break up
the soil. Never set depth at more than 30 cm. Exceeding this setting can damage the
machine.
Fig. 6
Ensure grubber works parallel to
ground when in operation.
Operating speed
An operating speed of 4-10 km/h is recommended, but always operate according to
conditions.
Increased speed will increase wear, particularly in dry conditions. The harrowing
teeth can also be damaged if operating at excessive speeds in unfavourable condi-
tions.
Power
Power requirement will depend on soil type, terrain and speed.

FRONTGRUBBER
Side 18
Troubleshooting
Fault
Cause
Remedy
Uneven working
depth
•Wheels not set
evenly
•Adjust wheels
•Front Grubber tips
backwards or for-
wards
•Adjust lift arm height
•Adjust wheels
Difficult to control
•Top mount chain
tight
•Loosen chain
•Working depth too
deep
•Raise machine

FRONTGRUBBER
Side 19
Maintenance
Good maintenance ensures long service life and optimum use. Grease nipples are
fitted where wear is heaviest.

Tighten all screw connections after first working day. Check all split pins and bolts
to avoid mechanical failure. Check hydraulic system for leaks.
Lubrication
Fig. 7
A
B
C
D
E
F
Lubrication points
Number of
nipples
Lubrication in-
tervals, hours
Illustration
Stone guard cylinder, upper
13/9
8
A
Stone guard cylinder, lower
13/9
8
B
Sideboard
6
50
C
Wheel bushing
2
8
D
Wheel bearings
4
50
E

Lubricate all lubrication points at least once annually.

FRONTGRUBBER
Side 20
Hydraulics
Check all hydraulic hoses for wear or cracks. Check all hoses for crimping.
Replace defective hydraulic hoses immediately. Broken hoses can cause injury or
damage to the implement.

Lubricate exposed rams with oil or pressure-resistant grease to avoid rust forming
when storing for long periods. Remember to remove before use.