DODA SEPARATOR 2000 User guide

®
Via Sante Salmaso 18/20 46010 BUSCOLDO (MN) ITALY
Tel. [phone] - Fax. [phone]
http://www.doda.com Email: [email protected]
COSTRUZIONE MACCHINE AGRICOLE di
DODA ALDO & C. SNC

All data, pictures and performances mentioned in this manual
are only approximate.
The manufacturer reserves the right to make changes without
prior notice.

GENERAL INFORMATION
HOW TO USE THIS MANUAL
The inclusion of a general table of contents on page two enables the reader to locate the relevant topic immediately, making
it easier to consult the manual.
The chapters are organised sequentially based on topic, making it easier for the reader to find the desired information.
PURPOSE OF THE MANUAL
This manual was compiled by the manufacturer to provide the necessary information to all parties authorised to safely car-
ry out transport, handling, installation, maintenance, repair, dismantling, disposal or storage operations relating to the ma-
chine or parts thereof.
Information relating to the electric motor can be found in the Use and Maintenance Booklet for the motor, issued by the
manufacturer.
Failure to comply with the information provided may pose a risk to the health and safety of persons and may also cause
economic damage. The manual must be stored carefully to ensure that it can always be located and consulted in perfect
condition.
In the event of loss or damage, a replacement copy must be requested directly from DODA COSTRUZIONE MACCHINE
AGRICOLE di Doda Aldo & c. s.n.c.
DODA COSTRUZIONE MACCHINE AGRICOLE di Doda Aldo & c. s.n.c. reserves the right to change, supplement or
improve the manual; such changes shall not, however, constitute a reason to consider this copy inadequate.
WARRANTY GUIDELINES
Doda provides a 12 month warranty on its products, valid from the moment of commissioning but limited to an 18 month
period from the date of shipping.
The warranty shall not apply if the problem or fault in question results from the incorrect or unsuitable use of the product, or
if the aforementioned use does not correspond to that for which it was commissioned.
The warranty is limited to the repair or replacement of the product and/or the parts found to be defective, at the absolute
discretion of the manufacturer, and subject to inspection by the latter.
DODA will not pay additional costs for transport or labour associated with the replacement of the defective parts.
The machines to which the manual relates must be used in environments and for uses that correspond to those provided for
during the design phase.
Any improper use of the product is prohibited.
Any modification to or replacement of machine parts, without prior authorisation by the manufacturer, may constitute a risk
factor for accidents and, in this case, the manufacturer shall be absolved of all civil and criminal liability, and the warranty
shall be deemed void.
MANUFACTURER DETAILS
DODA COSTRUZIONE MACCHINE AGRICOLE di Doda Aldo & c. s.n.c.
Strada Sante Salmaso, 18/20 - Loc. Serraglio
46010 – Buscoldo di Curtatone (Mantova) ITALY

SYMBOLS USED IN THE MANUAL
MEANING NOTE SYMBOL
PROHIBITION
It is PROHIBITED to perform certain manoeuvres and operations
that could compromise the safety of the operator, the machine or
adjacent
parts/structures
DANGER Important DANGER messages relating to the safety
of the operator and the machine
ELECTRICAL
DANGER DANGER of an electrical nature
EX WARNING Particularly important warning relating to potentially explosive
atmospheres
WARNING This symbol draws attention to a particularly important
warning

DODA thanks you for having bought an item of its production range and invites you
to read this manual.
In it you find all necessary information for the correct use of the machine bought.
Therefore we recommend you to read it wholly and follow all instructions contained
in it.
Furthermore please keep it in a suitable place, so that it could remain unaltered.
The content of this manual can be changed without notice or additional obligations,
in case necessary changes or improvements to the units already delivered could be
necessary.
It is forbidden to copy or translate any part of this manual without previous
authorization.
GENERAL CONTENTS
CHAPTER
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
DESCRIPTION
Introduction
Loading and unloading of the machine
General instructions
Preliminary checks
Positioning and Transport
Functioning
Operating and Safety Rules
Maintenance
Stickers
Performance and Technical Data
Failures and remedies
PAGE
1
2
2
3
4 ÷ 8
9÷ 10
11
12 ÷ 18
19-20
20
21
EC DECLARATION OF CONFORMITY AS DEFINED BY DI-
RECTIVE 2006/42/EC AND FOLLOWING MODIFICATIONS

1. INTRODUCTION
The machine described in the following ”USE AND MAINTENANCE” booklet is a
roller press separator for slurry. It is a very simple but efficient machine for treating
industrial or farming or not homogeneous waste, when the fluid part has to be
separated from the solid one.
The mechanical system is based on compression and filtering of sewage with
subsequent separation of the fluids from the dry materials. The separator is supplied by
a SUPER chopping pump and powered by a little 2,5 HP motor. The whole structure is
made of stainless steel.
From the technological point of view, the concept adopted for all other DODA products
has been applied to this machine as well:
"Highest quality to obtain the maximum reliability and longest machine life"
Page 1
1) Liquid discharge pipe
2) Solid substance output chute
3) Scraper
4) Upper and side-protections
fig. 1
5) Electric gear unit
6) Inspection and inner cleaning door
7) Adjustable feet
8) Supports for transport fork lift
1
2
3
4
5
6
7
8

2. LOADING AND UNLOADING OF THE MACHINE
For transport, place a pallet at the machine
base and lift it with a fork lift. If a pallet is not
available, the lift truck must be provided with
at least 1.2 m long forks suitable, by paying
attention that they lean on points 8 fig. 1 If
the machine is hoisted by a crane, use to the
suitable rings E: open upper protection 4 fig.
1, loose nuts B fig. 2, lift rings E, insert a bar
into holes (at least 130 cm long and max Ø 4
cm), join the crane hooks to the bar. At the
end of this operation, fasten ring E again. Do
not solder the machine structure together with
the base permanently for any reason!
Page 2
fig. 3
fig. 4
WARNING: never move abruptly or bump stainless steel parts with the forks of the lift
truck.
WARNING: the machine must operate on the horizontal plane, as is indicated in the
stickers on the machine itself: open upper protection 4 fig. 1, rest the water level to the stay
rod A, adjust supporting feet until the best position is reached.
fig. 2
E
A
B
Before lifting, ensure that the structure is balanced!
Never stand under the suspended load when lifting, transporting or unloading the machine!
Do not make sudden manoeuvres, or knock the steel parts with the forks of the lift truck.
Never leave a suspended load unsupervised!

Page 3
fig. 5
DODA is in no way responsible for any electric connection. (please follow the instructions
on the motor plate and on the sticker showing the rotation direction).
3) Before starting the machine, check that the rotating driving parts are suitably protected,
as foreseen by their manufacturer.
4) If the protection of a rotating component is not provided, the user has to supply the
machine with it in conformity with the provisions of the law.
5) DODA takes no responsibility for modifications which could alter the characteristics of
the machine bought.
6) DODA machines must not be installed on structures which are not in conformity with
EC safety regulations foreseen by the Community Directives.
7) Before operating the machine it is indispensable to read carefully all directions in the
“Use and Maintenance” manual. In particular, be sure to have completely understood
the machine functioning.
8) The machine has been designed and manufactured for the treatment of water and slurry,
but not of chemical products. Therefore if these substances are treated with our ma-
chine, it could be damaged permanently.
The reduction gear is self-lubricating and there-
fore no maintenance is necessary. The pistons’ hy-
draulic system needs no maintenance as well. If
the hand of the pressure gauge C fig. 15 is often
lower than the 4.5 MPa foreseen, that means there
are leaks. To bring pressure back to the correct
working level: insert lever D fig. 15 into its spe-
cial housing, pump until hand reaches 4.5 MPa
Tank A fig. 15 contains 3 kg of oil. In case of fault
contact dealer.
Loading pressure must never be higher than
0,3 MPa at separator input.
4. PRELIMINARY CHECKS
The DODA separator can also be supplied with other products, such as tomatoes and
potatoes. Please contact manufacturer for any other employment.
1) Check that no component has been damaged during transport, in this case contact
immediately your dealer .
2) The power supply connection has to be carried out only by skilled workers and
according to DODA instructions (by connecting the cables of the electric motor to
the power supply or the pump to the tractor by means of the cardan shaft).
3. GENERAL INSTRUCTIONS

5. POSITIONING AND TRANSPORT
Before positioning the Separator arrange the proper structure on the tank edge.
The machine has to work in a horizontal position: open upper protection 4 fig. 1, put a wa-
ter level on the stay rod A fig. 2, adjust support feet 7 fig. 1 until the correct position is
reached.
The height of the plane, on which the feeding pump is set, has to be suitable for its head,
considering the loss of pressure due to friction due to the feeding pipe. A correct height of
the pipe prevents excessive accumulation of solid materials close to the machine. This as-
sures a better collection of the separated solid product with big sized machines (scrapers,
shovels, etc.).
1) Open electric board fig. 6 and connect the electric
supply cables in the suitable terminal board W fig.
7.
Check the main voltage inside switchboard (220
Volt only 3 phase or 380 Volt only 2 phase) fig.
5.It has to be suitable for the switchboard voltage.
2) To check if the rotation direction of the electric
motor is correct, keep "Manual- Automatic" knob
O tur ned on manual position.
3) Turn the main switch U knob from zero position
to one fig. 6 only for one second, then put it
again to zero (check if the rotation direction of the
electric motor is correct: see sticker on the back).
To avoid any damage to the machine efficiency,
the motor must never rotate in the wrong direction
for longer than two seconds.
O)"Manual - Automatic" knob.
P) Pump indicator lamp.
Q) Separator indicator lamp.
R) Washing indicator lamp.
S) Overheating indicator light
U) Main switch.
V)Timer.
Z)Heat regulator switch
W)Supply terminal board.
fig. 7
fig. 6
Page 4
OPQRS
U
V
Z
W

Page 5
Any electric connection must be done by skilled workers.
DODA assumes no responsibility for electric connections. Safety protec-
tions must not be removed in any case.
4) The delivery pipe (diameter 150) can be connected to the input A fig. 8 from the front
side or from the bottom, depending on which is the easier way to do it. Put a blind
flange on the not used plug.
5) The overflow pipe (diameter 150), set near the inlet, has to be connected to the plugs
B fig. 8. Also in this case use the easier accessible one and close the other with a
blind flange.
6) The separated slurry outlet (diameter 150) lies on the separator lower side at point C
fig. 9
fig. 8
WARNING: Pipe connections are not load-bearing, therefore the piping weight has not
to rest on the machine, but they have to be supported along their whole length.
7) Connect the water inlet pipe to the washing valve on the bottom of pipe D fig. 10.
fig. 10 WARNING: insert a drainage valve at
the input of this valve to avoid damage to
the solenoid valve.
The WASHING device comes into operation at
functioning end. The valve controls water flow
inside the separator. If the water pressure is low,
open the covers E - F fig. 11 to have a better
cleaning and to wash it manually. The screen can
be inspected also through doors G fig. 12. A man-
ually washing inside the machine can be carried
out also through these openings.
AB
D
fig. 9
C

Page 6
8) TIMER SETTING: synchronize and
arrange the timers for automatic machine
washing. The switchboard, (see detail V
fig. 7) consist of two regulators:
1) The first timer, which switches the
separator off, control the manure
emptying time of the machine after
feeding pump stop. The setting of
this timer has to be carried out imme-
diately after the first installation, ac-
cording to the time measured neces-
sary for emptying the non homogene-
ous slurry out of the tank.
2) The second timer comes into operation im-
mediately after the first one and it is useful
for a timed control of the water flow, which
washes the separator. Also for the setting of
this device, For a correct machine washing
take into account the time measured during
the first installation. If the feeding pump is
provided with a level probe, the two timers’
cycles start automatically after pump stop.
If the feeding pump is not supplied a level probe, the timers’ cycles has to be started man-
ually:
- switch the pump off ;
- put “Manual/Automatic” knob O fig. 6 on Manual position, with only one shift; then the
cycles programmed by the timers start.
fig. 14
fig. 13
fig. 11
E
F
fig. 12 G
PUMP SEPARATOR

Page 7
In both cases, if washing has not been satisfactory restart it simply by turning the “Manual/
Automatic” knob O fig. 6 on Manual position - with only one shift.
WARNING: If you want repeat the washing, reset temporarily the first timer to prevent
the machine works in vain .
Time-schedule is directly indicated on timers V fig. 7. Following figure 13, after the feed-
ing pump has stopped, the separator will go on working for ten seconds more (first timer);
then washing will come into operation for eight minutes (second timer).
- Check the pump rotation way and the degree of over heat protection (absorbed amper-
age). Then regulate the device illustrated in figure 14 (also see Z fig. 7) based on absorp-
tion of the feeding pump motor as well as on the separator motor.
- Position chopping pump feeding the separator in such a way that the pump body lies
15/20 cm far from the tank bottom.
- Regulate the feeding delivery of the pump to obtain a capacity adequate to the machine
working speed.
Before starting machine, control hydraulic pump pressure gauge C fig. 15, and check that
pistons B fig. 15 are under pressure.
For further information, see "Product Quality".

pag. 7
HIGH PRESSURE WASHING PLANT:
High pressure washing plant consists of 2 circuits with nozzles positioned inside the separa-
tor that through an external high pressure pump wash the area of the brush and the loading
tank.
The 2 circuits have at the entry a solenoid valve to perform separate washing cycles through
a single pump (pict. 13).
Each nozzle is completely adjustable to allow you to wash the necessary points with abso-
lute precision (pict. 14).
It is advisable, to have an effectiveness in the washing, to use a pump able to reach a
minimum pressure of 90 bar and a minimum flow of 40 l/min.
It is advisable, especially in areas with frost risk, to install a drainage valve that allows to empty the
washing circuit at the end of the cycle.
It is essential to install a suitable filter able to intercept solid particles in suspension possibly present
in the water.
fig. 13
fig. 14
High pressure inlet valve
Adjustable nozzle
Page 8

6. FUNCTIONING
WARNING: read section “GENERAL INSTRUCTIONS” before starting machine.
After arranging and checking the machine’ s stability during normal functioning you can
start utilising it.
In all versions of electrical motor, provide to check the correct rotation way, and connect
them to supply.
Rotate main switch U fig. 6 to position One and knob O to “Automatic”. Now, if the
feeding pump is provided with a level probe the pump feeding can start.
The non homogeneous wasted accumulation
starts input sensor that, in turn, starts the sepa-
rator. If the machine is no fed, it stops automat-
ically.
fig. 15
B
A
C
G
D
F
Page 9
In case you want to stop the cycle, in any time, turn knob O fig. 6 to Manual:
- The feeding pump stops
- The two-timer program starts.
WARNING: never operate the machine without manure

Page 10
If the machine is not provided with a level probe on the feeding pump, allowing to
start and stop the machine automatically, proceed as follows:
- turn main switch U fig. 6 to One
- turn knob O to “Automatic”
- start feeding pump
- when the non homogeneous wasted reaches the sensor inside the loading tank, the separa-
tor starts up.
- to stop the plant, turn knob O fig. 6 in central position
- stop the pump
turn knob O to Manual again: the liquid manure emptying and the machine washing cycles
will start up.
Fig. 16
PRODUCT QUALITY
To obtain a more or less solid separated product, operate the hydraulic pump A fig. 15 reg-
ulating the pressure of the two pistons B fig. 15.
The working pressure, reported on pressure gauge C, may range between 45 and 50 MPa
(or 700 and 800 PSI). This hydraulic pump is endowed with a compensating device keep-
ing oil pressure constant.
To increase pressure insert lever D into its housing and pump oil manually fig. 15.
To reduce oil pressure unscrew knob F.
If separator is not utilised for a long period remove pressure from pistons.
To introduce oil, unscrew plug G and top up. Max capacity 3 Kg.
L
I
H

7. OPERATING AND SAFETY RULES
1) During machine inspections, both during working phases and inspection ones, wear
always proper clothing (overalls, gloves, helmet, accident prevention shoes, fastened
clothes, etc.)
2) The machine has always to be used in a well lit place.
3) Since gases released by non homogeneous wasted are poisonous, check that:
- the work area is adequately ventilated;
- the machine is not used near in to flames.
4) Never inspect the liquid manure tank alone. If you loose your balance or if you feel
faint due to fumes, ask for help immediately.
5) If you do not need to work in a tank, cover it.
6) The machine must be operated by accountable adults, while the place must not be ac-
cessible to children.
7) Do not carry out operations or adjustments when the machine is in motion or when it
is connected to supply.
8) The machine has to be employed only if all necessary protections are correctly posi-
tioned, by following instructions indicated in the previous paragraphs to avoid possi-
ble contact with moving parts. Do not damage or remove those protections.
9) The machine can be set in motion only if it has already been filled up with oil (driving
pipes and gearbox).
10) Before starting work phases, be sure that the whole assembly is stable (machine and
tractor).
11) During maintenance be sure that the machine is perfectly standing and disconnected
from supply.
12) The trolley must not be used for road-transportation (if foreseen).
13) During operation, maintenance or adjustment, the rubber parts of the machine
(gaskets, etc.) have not to come into contact with oil, grease or oil derivatives.
14) Be sure that motor rotation is clockwise as indicated by the arrow on the motor (when
foreseen).
15) As regards machines provided with electrical supply, the connection has to be carried
out in a place protected from atmospheric precipitation.
16) If the delivery pipe is connected to pipes or hoses, check that the suitable fastening
joints are in perfect conditions; do not stop near them: hazard of bursting and tearing.
17) Work and keep the machine in a dry area, protected from atmospheric precipitation if
it is not used for a long time.
18) Do not go too close to front chute (detail 2 page 1) during machine work phases, to
avoid accidents.
19) Be sure that the machine is not placed on a inclined plane.
20) Do not climb over or lean out of separator screens; do not use ladders or similar tool
on machine platforms.
Page 11

8. MAINTENANCE
Before any maintenance operation, stop the machine and switch off the
electricity.
1) Grease rotary parts every 50 working hours (lubricators, piston articulated joints, gear
wheels, etc...).
2) At the end of its utilisation, wash the machine to prevent non homogeneous wasted from
solidifying; this could cause damages.
Page 12
fig. 17
As for all spare parts, address directly to
DODA dealer.
IMPORTANT!!
Switch off electricity before doing periodically
maintenance the following parts:
CHAINS
-Lift protection I fig. 16 and grease side driving
chains H on both sides.
ROLLERS
- Leaving protection open, clean upper rolls L
with water.
BRUSH
- Check that shaft F fig. 17 rotates when the machine is in operation. If this does not happen,
act on support G manually: loosen bolt H and rotate support in the arrow sense. This rota-
tion moves forward the strainer-cleaning brush by about a millimetre every five degrees of
the graduated scale. This brush will be completely worn out when 0° indicator is reached
with respect to reference E.
N.B.: there are two G supports, one opposite to the other, therefore they
must be adjusted perfectly on the same axis.
BRUSH REPLACEMENT
The brush is an important element to clean the strainer during machine work and washing
cycles. It is made up of a roll covered with steel wires and is subject to wear. So, can be nec-
essary to replace it once it is worn out.
HG
E
F

 


Page 13




fig. 18
fig. 19
Check that the brush is completely worn before replacing it:
- Indicators on support G graduated scale must be on 0° (brush worn out).
- open fig. 12 door and check that the steel wires are worn out (only the central roll must be
left).
It is very easy to replace the brush:
- lift protection I fig. 16.













fig. 20 Page 14
fig. 21
1) Unscrew bolts H supporting holders G fig. 18.
2) Unscrew bolts B at the end of shaft F on both sides fig. 19.
3) Remove holders G from the sides of the Separator fig. 20.
4) Open the pins on the flange M fig.20, by screwdriver C.
5) Unscrew screws that keep flange M tightened fig. 21.
6) On the opposite side, completely remove shaft F from the machine fig. 21.

WARNING:
before approaching the machine for any maintenance, switch off the elec-
tricity.
The worn brush falls onto the bottom of the screen.
- Open the door G fig. 12.
- Remove the old brush.
- Position the new brush inside the machine on the level of the holes of holder G.
- Insert shaft on the side from which it has been removed until you gift the correct position.
- Remove flange M and screw up hexagonal screws again.
- Close retainers of flange M onto hexagonal screws again.
- Insert both holders G.
- Tighten bolts at the ends of shaft F.
- Rotate holders in such a way that the 130° notch (of holder G) coincides with the refer-
ence point E fig. 17 on the side.
- Fasten holder G with bolts H.
Page 15
WARNING: only for March 2000 versions
When replacing the brush control bush R fig. 22. It must be mounted exactly like it was
before: the socket head screw P, which is out-of-centre to the bushing, must lie outside the
machine.
In all other models, where the socket head screw P is centred, the bushing can be mounted
in both ways.
ROTATION SENSOR
A special proximity switch controls brush ro-
tation S fig. 22. If, for any reason, (brush wear,
mechanical stop, etc.) the brush stops, the sep-
arator cannot work.
N.B.: In some models the rotation sensor
can be mounted on the side of the motor unit.
S
R
P
IMPORTANT: wash the brush at least once a week. Careful and complete washing of
the machine (rollers, screen, brush, inlet tank, sewage collection tank) at the end of each
working cycle extend separator life time with better performances.
fig. 22