sitrex ST 780 H Quick setup guide

ASSEMBLY, USE AND MAINTENANCE
ST 780 H
ROTARY TEDDER
05/2006

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WARRANTY
SITREX spa warrants new SITREX machinery at the time of delivery to the original purchaser
to be free from defects in material and workmanship if properly set up and operated in
accordance with this Operator’s anual.
SITREX undertakes to repair or replace free of charge any defective part which should be
returned by the purchaser (freight prepaid) and found to be defective by inspection authorized
by SITREX during the warranty period.
This warranty will be valid for 12 (twelve) months from the delivery of goods to the original
purchaser .
In case the customer is not in a position to return the defective part to the manufacturer , the
manufacturer cannot be held responsible for any cost due for repair or replacement of any part
of the machine , he will only supply the part(s) required for the repair and/or replacement.
The warranty is null and void when it is evident that the machine has been improperly used or
however repaired without authorization.
SITREX undertackes no responsability for any obligation or agreement reached by any
SITREX employers,agents or dealers, which are not in compliance whit the above warranty .
The manifacturer cannot be held responsible for the consequent damages. This warranty
substitutes any other warranthy , espress or implied , and any other manifacturer’s obligation.
CHAPTHER
1) GUIDE TO THE SIGNS
2) General summary of safety and accident-pre ention instrutions
3) PRODUCT IDENTIFICATION
4) DELIVERY AND ASSEMBLY
5) ADJUSTMENT, PREPARATION AND USE
6) TRANSPORT BY ROAD
7) USE IN THE FIELD
8) MAINTENANCE

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GUIDE TO THE SIGNS AND SYMBOLS USED THIS
MANUAL AND THEIR LOCATION ON THE MACHINE
IMPORTANT
These signs and symbols give information to the operator on how to make the best se of the machine so as to prolong
life, avoid damage, optimise work and, above all, to avoid inj ry to the operator and anyone within range of the
machine.
WARNING SIGNS
1) Before beginning operations, read the instr ction man al caref lly.
2) Before doing any maintenance or repair work, stop the machine at a s itable
spot. T rn off the tractor motor, apply the brake, remove the key from the
ignition and cons lt this man al.
3) This is a warning to se proper accident protection when carrying o t
maintenance and repairs
DANGER SIGNS
4) Risk of possible ejection of bl nt objects. Keep a safe distance from
the machine
5) Indicates that anyone coming within range of the moving tine arms will
be serio sly inj red.
Keep a safe distance from the machine.
6) Indicates that there is a risk of cr shing yo r hands. Keep yo r distance.
7) Indicates danger ca sed by accidental fall of s spended arms. Keep safe
distance.

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8) Indicates that it is dangero s to to ch the cardan (P.T.O.) shaft.
For all the other information regarding the cardan shaft, see the se and
maintenance booklet specifically for the cardan shaft which, together with
this man al, makes p the doc mentation on safety, se and maintenance of
the machine.
INDICATION SIGNS
9) Indicates a greasing point .
10) Shows the direction of rotation of the power takeoff and the maxim m n mber revol tions.
11) Indicates position of the tines on the rotors and their direction of rotation.
MANUAL SIGNS.
Indicates an impending dangero s sit ation which, if not avoided, will ca se
death or severe personal inj ry.
Indicates a potentially dangero s sit ation which, if not avoided, co ld ca se
death or severe personal inj ry, incl ding dangers which are present when
protection is removed.
indicates a potentially dangero s sit ation which, if not avoided, can provoke
less severe or minor inj ries.
DANGER
ATTENTION
CAUTION

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5

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PRODUCT IDENTIFICATION
MAIN PARTS
1) BRACKET
2) DRAWBAR
3) PARKING STAND
4) HYDRAULIC KIT
5) L.H. GUARD
6) RATCHET
7) AXLE
) R.H. GUARD
9) TINE ARM
10) TINE
11) GEARBOX
12) FRAME
13) TRANSPORT TYRES IDENTIFICATION PLATE
14) WORKING TYRES
15) CARDAN SHAFT
16) LIGHTING BRACKET
17) CYLINDER
1 ) CYLINDER
Rotors Arms for
Rotor
RPM
Rotors
RPM
Tractors
Tyres
Working
M aximum
Width
Transport
Width
Working
Width
Working
Width DIN
Power
Required
O perating
Speed
WEIGHT
6 6 130 350-450
16X6.50
8,05 Mt
3 Mt 7,8 Mt 7,5 Mt HP 70
16 Kmh
Kg 1120
max 540
8PLY 26’ 5” 10’ 25’ 7” 24’ 7” KW 50 10 MPH
bs 2470

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DELIVERY AND ASSEMBLY
Checking the machine on delivery
All parts are carefully checked before dispatch or delivery.
On receiving the machine, ensure that it has not been damaged during transport. If damage has
occurred, contact the dealer concerned.
Details of packing are given below.
UNPACKING THE MACHINE
Lift the machine using a forklift truck, crane or other suitable equipment of sufficient capacity after
first checking the weight of the configurations in the table given below.
Check the stability and positioning of the load on the forklift truck forks or crane hook.
Keep the load as low as possible during movement for maximum stability and to ensure that the
operator has maximum visibility.
If a forklift truck is used, ensure that the forks are positioned as wide apart as possible.
WEIGHT PACKING WEIGHT
KG 1250 1120
LBS 2750 2470
NOTE:
1) The packing consists mainly of wood, which should be disposed of according to the laws
in force in the country where the machine is used.
The plastic film should also be disposed of according to the laws in force in the country
where the machine is used.
2) When storing, it is permissible to stack 2-3 crates on top of each other. Make sure that
they are perfectly aligned cortically.
3) In the event of further transport, ensure that the machine when on the transporting
vehicle.

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Assembly instructions
Assembly is highly dangerous and must be carried out in strict accordance with the following instructions.
We recommend that qualified personnel perform assembly. We also recommend that assembly be carried out
in a flat, solid surface, open area with no people (particularly children) nearby who could be severely in ured
if they were to touch or move any parts of the machine.
Assemblers must provide suitable lifting mechanisms and supports for stabilizing the partially assembled
units, so as to prevent them from falling and causing damage or in ury. The steps for assembly are illustrated
in following. Depending on the experience of the assemblers and the tools available, it is not necessary that
the instructions be followed in the exact order given here, but the safety precautions described above must
always be followed carefully and scrupulously.
Assembly sequence:
Fig. 1 - Place the rotor axle (1) in a stable position and then mount the tyres support (6). Use the pivot (8)
and the Seeger circlips (18) to mount support (7) and (12) on to the support so they are facing in the direction
shown in the figure. Use the washer (10) and nut (11) to assemble the wheels with their guards (4) and (5) on
to the tandems. Make sure that, when the wheel brackets (14) are mounted on to the supports (13), the
bracket plate matches the plate divided into sectors for the various supports. Use the screw (15), the nut
(17) and the washer (16) to fasten the wheel bracket into position..

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The wheels should face in the direction shown in the drawing.
Fig. 2 - Use the pivot (3) and the elastic pin (13) to assemble the rotor group. Now assemble the transport
axle with the pivots (5). Use the grommet nuts (15) to fasten the wheels on to the rear axle.
After assembling the front drawbar and rear axle, mount the master cylinders (10) and (11). Use the two
pivots to fasten the axle cylinder, whereas the drawbar cylinder has first to be screwed on to the support
already assembled on the drawbar, and then the rear pivot is inserted.
Fasten the screwing block plate over the cylinder screw, as shown in the photo.

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Assemble the oleodynamic system so that the tubes are arranged as shown in the following photo.
Pipes should be released in this phase (the hose clamps must not be tightened ). After connecting machine to
tractor, lift the machine, place hoses so that they do not force and then tighten hose-clamps.

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In order to assemble the spring rods, proceed as follows:
open the machine in its working position and connect the oleodynamic system to the tractor.
Insert the spring rod into position and then raise the side arms. As the arm rises, it compresses the spring.
Use the hole in the tube to uncover the hole on the spring guide rod. Stop the cylinder and insert the elastic
pin through the hole in the rod so that the pin does not touch the tube. The following photos show the entire
sequence.

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Use the flat drawrod to assemble the road sign plate supports. Once assembled, the sign plates should be
parallel to the ground. If not, ad ust the support already assembled on the machine by unscrewing it and
moving it slightly in order to get the correct position.

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Assemble the guards whit screws 28 and 48 Attach the lateral guard 54 and 53 (LH)
to machine body using screws 28-46-48 nut 47 and washers 50.
In this step you will use:
Item 46 : 1 screws M10x45
Item 47 : 1 nuts M10
Item 48 : 2 screws M12x50
Item 50 : 4 washers ø13 (ø0.51”)
Assemble the cardan support.
Attach casing 1 to the central housing A and fasten using nuts 2.
Attach casing 3 to the support B and fasten using screw 4 and nuts 5.
Mounting cardan shaft 6

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DIAGRAM OF TINE ASSEMBLY
Tine bars 1 (R) are attached to rotors
A – C – E. Tine bars 2 (L) are attached
to rotors B - D – F.
Attach tine bars 1 – 2 (R-L) to the
respective rotors, placing holes H of
tine bars 1 –2 over the screws already
in place on the lower central part of
rotors A – B – C – D – E – F and
fasten with nuts 3.
Insert screws 4 in the holes G
indicated on rotors A – B – C – D – E
– F and in tine bars 1 – 2 (R – L) and
fasten with nuts 5.
Assembly is now completed.

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ADJUSTMENT, PREPARATION AND USE
Connection to the tractor is highly dangerous. Take great care and carry out the entire operation in
strict compliance with the following instructions.
Nobody should go near the area between the tractor and the machine.
Check that the tractor is in good running order. Check the engine oil, gearbox oil, brake fluid and
cooling water levels as well as the tyre pressures.
Refer to the tractor operator’s manual.
ATTACHMENT MACHINE TO THE TRACTOR
The attachment of pull-type machines to the tractor is very simple, as it is only necessary to couple
the drawbar hitch (3) to the tractor hitch using a pin of appropriate size, strength and shape. Always
use extreme care when reversing the tractor towards the machine.
The drawbar hitch (3) can be set in different positions, using pin (4) turning the hitch upside-down
from (A) to (B), to allow coupling to all tractor types.
If the two-point crosspiece is used, lock the drawbar hitch (3) using the optional screws (10).
Attention: do not use screws (10) if the machine is hitched to the drawbar.
During transport and working the parking stand (7) must be shifted from position “N” to position
“K”. This is done by removing clip (9) and pin (6) an moving stand (7) out of the parking position.
Fasten parking stand (7) into the transport position using pin ((6) and clip (9).
Once this procedure is completed, insert the quick-release coupling the tractor socket.

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At this point, work carefully with the hydraulic distributor to make sure that the frame is completely
lowered, and then adjust the height of the tines (H) above the ground. To change the distance
between the tines and the ground, turn looking (4) and rotating the self looking nut (5), the tilt of the
machine relative to the ground is adjusted.
It is advised to adjust the front tine so that it is 1 3/ ” from the ground.
If adjustment is too high, the forage will not be completely picked up and if it is too low, the forage
risks becoming dirty, the grass will be damaged and the double elastic tines will be worn down.
Before starting off for work, be sure that the machine is correctly assembled and in good operating
condition.

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Preparation for transport
To arrange machine for transport position, first it is necessary to operate movement of axle and
drawbar. Valves mounted on cylinders make it possible, first partial movement of axle and then
of drawbar. After this operation lift side rotors checking that safety hooks lock the relevant pins.