HE-VA Combi-Disc Series User manual

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Contents
EC-Declaration of Conformity..........................................................................................................8
Delivery check.....................................................................................................................................9
Machine description...........................................................................................................................9
Range of applications.......................................................................................................................9
Technical specifications.................................................................................................................10
Safety instructions for Combi-Disc.................................................................................................11
Safety and Instructions on Hydraulics...........................................................................................12
Transport on public roads:..............................................................................................................12
Front axle load:...............................................................................................................................12
Labels on the machine......................................................................................................................13
Start-up of the machine ...................................................................................................................14
General information .......................................................................................................................14
Colour marking of hydraulic hoses................................................................................................14
Attachment.....................................................................................................................................14
Maintenance......................................................................................................................................15
Lubrication.....................................................................................................................................15
Mounting instructions......................................................................................................................17
Mounting of the square tube roller or V-profile roller...................................................................17
Mounting of the drawbar and wheel frame on trailed models .......................................................17
Setting and adjustment....................................................................................................................19
Draw adjustment ............................................................................................................................19
Tines...............................................................................................................................................19
Hydraulic automatic release system...............................................................................................20
Replacement of wearing point........................................................................................................21
Disc.................................................................................................................................................22
Scraper............................................................................................................................................22
Edge equipment..............................................................................................................................23
Material damper guard ...................................................................................................................24
Spare parts list..................................................................................................................................25
Drawbar..........................................................................................................................................25
Wheel frame...................................................................................................................................27
Light mounting...............................................................................................................................29
Front section...................................................................................................................................31
Parallel guide..................................................................................................................................33
Disc support....................................................................................................................................35
Rear section....................................................................................................................................39
Material damper guard ...................................................................................................................40
Roller bar........................................................................................................................................41
Edge equipment..............................................................................................................................43

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Hydraulics.........................................................................................................................................45
Wheel support ................................................................................................................................45
Hydraulic stone protection .............................................................................................................47
Rear section lifting.........................................................................................................................49
Disc adjustment..............................................................................................................................51
Diagrammes......................................................................................................................................53
El. depth stop..................................................................................................................................53
Light kit..........................................................................................................................................54
Notes ..................................................................................................................................................55

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EC-Declaration of Conformity
in accordance with the EU Machinery Directive 2006/42/EC
applicable as from December 29th 2009:
HE-VA ApS
N. A. Christensensvej 34,
DK-7900 Nykøbing Mors
Denmark
hereby confirms that the following machine has been manufactured
in accordance with the Council
Directive 2006/42/EC.
The declaration comprises the following machine:
Combi-Disc
3.0 –3.5 –4.0 m
No. : _____________
Nykøbing, 12. Aug 2015
Villy Christiansen
The undersigned is furthermore authorized to compile technical documentation for the above
machine.

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Delivery check
Upon delivery to the dealer/supplier as well as to the customer, check the Combi-Disc for possible
damages.
Machine description
Range of applications
HE-VA Combi-Disc is a multi-purpose machine available in 3.0 m, 3.5 m and 4,0 m working width.
As standard, the Combi-Disc is built in a strong frame construction. In front, the machine is
mounted with strong tines loosening the hard strata / plow pan simultaneously with a perfect
oxidation without pulling hard and inconvenient soil up to the surface. The working depth of the
tines is adjusted hydraulically from -10 cm to 40 cm. After the tines, the machine is mounted with 2
rows of Ø510 mm discs. The working depth of the discs are adjusted hydraulically too from -10 cm
to 13 cm. The placement of the discs after the tines results in the fact that the Combi-Disc, even
after a pass, is performing a perfect seed bed where the tines in front have loosened the soil, and the
following disc have mixed the soil without any mixing of hard and inconvenient soil. At the back,
the machine is mounted with a roller, which ensures a precise working depth –perfect consolidation
and crushes the clods. Different roller types and dimensions are available, and the Combi-Disc is
available as three-point mounted or trailed models.

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Technical specifications
Rigid models
3.0 m
3.5 m
4.0 m
Working width
3.00 m
3.50 m
4.00 m
Transport width
3.00 m
3.50 m
4.00 m
Wheel mounting (trailed model)
400/60x15 –14 Ply
Wheel pressure
4.9 BAR
Number of hydraulic outlets:
2 pcs double-acting + 1 pc single-acting
For trailed machines:
+ 1 pc double-acting
Oil type:
Hydro Texaco HD32
El. connection
12 volt
Working speed (recommended)
7 - 10 km/h
Max. HP
350 HP
Rollers
3.0 m
3.5 m
4.0 m
Square tube roller Ø550 mm
No of tines
No of disc
Weight kg - three-point mounted
Weight kg - trailed
Power requirement HP
5 pcs
22 pcs
2800 kg
4000 kg
160 –230 HP
6 pcs
26 pcs
3160 kg
4360 kg
190 –280 HP
7 pcs
30 pcs
3460 kg
4660 kg
220 –300 HP
V-profile roller Ø600 mm
No of tines
No of disc
Weight kg –three-point mounted
Weight kg - trailed
Power requirement HP
5 pcs
22 pcs
3420 kg
4620 kg
180 - 250 HP
6 pcs
26 pcs
3870 kg
5070 kg
210 –300 HP
7 pcs
30 pcs
4260 kg
5460 kg
240 –300 HP
V-profile roller Ø700 mm
No of tines
No of disc
Weight kg –three-point mounted
Weight kg - trailed
Power requirement HP
5 pcs
22 pcs
3600 kg
4800 kg
220 - 300 HP
6 pcs
26 pcs
4080 kg
5280 kg
240 - 300 HP
7 pcs
30 pcs
4500 kg
5700 kg
240 - 300 HP
Combi-Disc complies with DS/ISO 11001-1, three-point suspension.

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Safety instructions for Combi-Disc.
Do not start-up the machine if there are persons in exposed positions* within a hazardous area **
Persons in exposed positions: Any person who is wholly or partly within a hazardous area.
Hazardous area: On and under the machine within a distance of 10 m from the machine.
* Persons in exposed positions: Any person who is wholly or partly within a hazardous
area.
** Hazardous area: On and under the machine within a distance of 4 m from the machine
When persons are in exposed positions (e.g. in connection with adjustment, maintenance,
attachment and
uncoupling), the following conditions must be observed:
1. The machine must be lowered to firm ground.
2. The hydraulics must be relieved.
3. The tractor must be stopped and the key removed from the ignition switch.
4. The driver must ensure that no persons are in exposed positions during the operation.
Most accidents that happen in connection with the operation, transport and maintenance of
machines are
caused by non-compliance with the most elementary safety conditions.
Therefore it is vital that anybody working at the machine carefully complies with the safety
instructions
as well as other instructions applying to the machine.
The machine may only be operated, maintained and repaired by persons, who are familiar with this
work
and who are further familiar with the possible elements of danger with this particular machine.
CAREFUL! Rotating parts and loose-fitting clothing make up a dangerous combination!
Due to the risk of falling down, it is extremely hazardous to stand on the machine
frame during operation of the machine attached to a tractor.
IMPORTANT! Due to the risk of falling down, it is extremely hazardous to stand on the
machine frame during operation of the machine attached to a tractor.

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Safety and Instructions on Hydraulics
1. The maximum working pressure is 225 bar.
2. It is advisable to label the attachment parts at hydraulic connections between the tractor
and the tool in order to eliminate incorrect operation!
3. When checking for hydraulic leaks, use suitable safety wear (eye protectors, gloves, etc.)
High-pressure hydraulic oil may penetrate the skin and cause dangerous injuries.
In case of injury, consult a doctor immediately. RISK OF INFECTION!
4. Before operating the hydraulics, lower the machine to firm ground.
Relieve the hydraulics, stop the motor and remove the ignition key.
5. Check the hydraulic hoses on a regular basis, however, every six months as a minimum
due to any cracks, wear and tear, etc. Replace any defective hoses immediately.
The life of hydraulic hoses is maximum 5 years.
New hydraulic hoses must meet the manufacturer's requirements.
Transport on public roads:
Check before transport on public roads that the attachment of the machine at the tractor is in
accordance with the local rules and regulations in force (permitted total weight, permitted axle load,
transport width, lights, warning signs, etc.).
Front axle load:
After the attachment of the machine and at maximum load, the driving properties of the tractor must
be ensured. Check that the front axle is sufficiently loaded. As a minimum, the front axle load must
be 20% of the tractor weight. Permitted axle load and permitted total weight for the tractor must
always be observed.
.
NB ! The driving, controlling and braking properties are affected by the attached machine
combination

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Labels on the machine
You will find several labels on your Combi-Disc containing safety and practical instructions as regards the
correct application of the machine. Please study the instructions and point out to the user the importance of
the labels as well as the safety instructions in these Operating Instructions. Always keep the labels clean
and readable –if not they must be replaced.
Maximum torque in Nm. w/lubricated thread
Metric thread
Quality 8.8
Quality 10.9
Quality 12.9
M12
81
114
136
M14
128
181
217
M16
197
277
333
M18
275
386
463
M20
385
541
649
M22
518
728
874
M24
665
935
1120
Wheel bolt M18x1.5 fine thread
433 NM
Wheel bolt M22x1.5 fine thread
803 NM
Study the Operating Instructions
thoroughly before any operation of the
machine and observe all safety
instructions.
Plate with number and year of
manufacture.
Correct hydraulic pressure on the
release system.
Tighten up all bolts regularly. If this is
not performed, our guarantee
obligations will no longer apply.

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Start-up of the machine
General information
The machine requires 2 double-acting outlets (three-point mounted models).
The machine requires 3 double-acting outlets (trailed models).
Colour marking of hydraulic hoses
Hoses for depth adjustment of tines = black
Hoses for wheel on trailed machines = red
Hoses for automatic release system = yellow
Hoses for depth adjustment of discs = green
Attachment
Combi-Disc –three-point mounted models
1. Reverse the tractor to the machine and attach.
2. Connect all hydraulic hoses to the tractor outlets.
3. Lift the machine to maximum transport height.
4. Now adjust the working depth of the tines and the discs.
Combi-Disc –trailed models
1. Reverse the tractor to the machine.
2. Connect all hydraulic hoses to the tractor outlets.
3. Pressurise the drawbar - and the wheel cylinder (red) so that the machine drawbar is lifted to
the suitable height.
4. Then reverse the tractor and attach the machine.
5. Now lift the machine to maximum height and tilt the depth stop backwards towards the
drawbar cylinder.
6. Now adjust the working depth of the tines and discs.

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Maintenance
After the first 10 hours of operation, retighten the machine. Check hydraulic hoses, fittings
and cylinders for leaks and retighten. Please see the below schedule.
Ensure on a regular basis that all bolts are tightened.
Maximum torque in Nm. w/lubricated thread
Metric thread
Quality 8.8
Quality 10.9
Quality 12.9
M12
81
114
136
M14
128
181
217
M16
197
277
333
M18
275
386
463
M20
385
541
649
M22
518
728
874
M24
665
935
1120
Wheel bolt M18x1.5 fine thread
433 NM
Wheel bolt M22x1.5 fine thread
803 NM
Lubrication
The typical lubrication points are at the automatic release system, parallelogram for depth
adjustment, bearings for roller and wheel bearings. The lubrication points are to be lubricated after
every 10 working hours as well as after the cleaning in order to press out any water and dirt.
For lubrication, maintenance and repair, lower the Combi-Disc, put the brakes of the tractor on and
stop the motor.
Attention! However, the double sealed ball bearings in the roller should only be lubricated every
20 working hours and by 1-2 strokes so that the sealing rings are not pressed out. However, by 1 –2
strokes after cleaning in order to press out any water and dirt.
Important: Oil, type Hydro Texaco HD32 has been filled in the hydraulic system.

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Careful! XO The double-sealed ball bearings in the roller should only by
lubricated every 20 working hours and by 1-2 strokes so that the
sealing rings are not pressed out. However, by 1-2 strokes after the
cleaning in order to press out water and dirt.
Important! Oil, type Hydro Texaco HD32 has been filled in the hydraulic
system.

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Mounting instructions
Mounting of the square tube roller or V-profile roller
If the machine has been delivered disassembled, mount the roller behind
the machine before the start-up.
Mounting of the drawbar and wheel frame on trailed models
Mount the drawbar and the drawbar cylinder
in the lowest holes of the three-point
suspension.
2

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1. Mount the wheel frame bracket and wheel frame on the
back of the main frame.
2. Then mount the wheel frame cylinder between the main frame
and the wheel frame.
Attach the hydraulic hoses and fasten them in the parking device on the drawbar.
2
1
1
2
2

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Setting and adjustment
When starting-up the Combi-Disc in the field, it is very important that the machine is parallel with
the surface of the earth, the profile roller is at the rear and that the tractor is keeping the machine in
an exact working depth.
Draw adjustment
Three-point mounted models
For the three-point mounted models, it is important that the top link is
adjusted correctly.
Trailed models
It is important to adjust the drawbar cylinder correctly by means
of distance clips, which is placed on the drawbar box.
Height on the towing eye is approx. 500 mm
Tines
The working depth of the tines is adjusted hydraulically on the parallelogram, this means that the
working depth is changed without changing the working angle of the tines.
Parallelogram adjustment for depth adjustment.
The working angle of the tines can be changed by means of the spindles on top of the machine.

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Hydraulic automatic release system
1. Before each season it has to be controlled, that the gas pressure in the accumulator (Pos.1) is
90 bars. This requires special tools and can only be performed by an authorized dealer.
2. Befpre the start-up of the machine the hydraulic pressure in the closed hydraulic stone
protection system has to e controlled on the machine’s pressure gauge (Pos. 2). The pressure
has to be minimum 100 bar and must not exceed 160 bar.
3. IMPORTANT –the hydraulic pressure is to be controlled continuously and must never be
under 100 bar.
4. If there is a need to adjust the working pressure, follow the below instructions:
a. Mount the quick coupling of the hydraulic hose (Pos. 3) in the tractor’s oil outlet.
b. Turn on the ball valve (Pos. 4) and the working pressure can now be adjusted up or
down with the tractor’s oil outlet.
c. When the desired pressure is achieved, turn off the ball valve again (Pos. 4) and the
tractor’s hydraulic system is relieved before the quick coupling (Pos. 3) is
dismounted and placed in the parking device of the machine.
During the operation of the machine the tine is swinging automatically to the rear if it meets an
obstacle. In normal circumstances the tine will automatically return to the working position again
after having passed the obstacle. At extreme obstacles and/or soil conditions it might be necessary
to stop and eventually lift the machine from the soil.
It is important that no persons is near to the machine as the tine is returning to the
working position with high speed and might throw with soil and stones.
1
1
2
3
4

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Replacement of wearing point
Before working with the machine’s wearing points, the machine is to be
fastened. This can be performed by trestles under the main frame or by a
support of the roller.
The wearing point might fall off, when the bolt is removed –take care to avoid
foot and leg injuries.
1. Dismount M16x65 mm bolt (Pos. 1) by means of 2 pcs. 24 mm spanners.
2. The wearing point might fall off, when the bolt is removed –take care to avoid foot
and leg injuries.
3. Dismount the wearing point by pushing it forward. This might be difficult due to entrance of
soil, and it might be a good idea to use a hammer.
4. Mount the new standard wearing point, item no. 645000044 (Pos. 2) by pushing the wearing
point to the rear and then in its place.
5. Check the M16 x 65 mm bolt for eventual damages and replace it as required, item no.
690103190 + 690113008.
6. Mount the M16 x 65 mm bolt (Pos. 1), lubricate and tighten it with 20 Nm. Be careful not to
tighten too much –as the wearing point might be damaged.
1
2

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Disc
The working depth of the discs are adjusted
hydraulically too. The depth position is readable
on the scale (Pos. 1) (standard).
The sensor can be adjusted to the desired depth, where el. depth stop is mounted.
It is possible to over steer the electrical system by
turning off the switch mounted in the cabin, now the discs
can pass the sensor, thereby a deeper working depth is
achieved.
Scraper
The Combi-Disc has scrapers of
special steel among the rings on a V-
Profile roller.
To avoid unnecessary wear and to
obtain the best scraper effect it is
important to check the centring of the
scrapers every day.

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21
3
Edge equipment
1
Adjust the edge equipment for the
discs in the Combi-Disc so that the
excavated soil is collected.
Keep the discs away from the
ground to avoid bending when
turning.
Adjust the edge equipment for the
discs in the Combi-Disc so that the
excavated soil is collected.
Keep the discs away from the
ground to avoid bending when
turning.
Adjust the edge equipment for the
discs in the Combi-Disc so that the
excavated soil is collected.
Keep the discs away from the
ground to avoid bending when
turning.
Edge equipment can be adjusted at
three points:
1. Loosen two bolts –move the
arm out/in.
2. Use the spindle –it raises
and lowers the disc. Loosen
two bolts –raise/lower by
the spindle and retighten the
bolts.
3. Loosen one bolt –tilt the
disc more or less.