sitrex SR 420/11 H Guide

USE AND MAINTENANCE
SPARE PARTS LIST
SR 420/11 H
ROTARY RAKES
HYDRAULIC LIFT
Pull type
00

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Warranty
On delivery, check that the machine has not been damaged during transport
and that all the attachments are present. Claims must be made in writing to
the agent within 8 days of receipt.
The manufacturer warrants new 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 Manual.
The manufacturer 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 the manufacturer 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.
The manufacturer undertakes no responsibility for any obligation or
agreement reached by any employers, agents or dealers, which are not in
compliance whit the above warranty . The manufacturer cannot be held
responsible for the consequent damages. This warranty substitutes any other
warranty , express or implied , and any other manufacturer’s obligation.
CHAPTHER
1) GUIDE TO THE SIGNS
2) General summary of safety and accident-prevention instrutions
3) PRODUCT IDENTIFICATION
4) DELIVERY AND ASSEMBLY
5) ADJUSTMENT, PREPARATION AND USE INTRODUCTION
6) TRANSPORT BY ROAD
7) MAINTENANCE
8) SPARE PARTS LIST

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GUIDE TO THE SIGNS AND SYMBOLS USED THIS MANUAL AND THEI
LOCATION ON THE MACHINE
IMPORTANT
These signs and symbols give information to the operator on how to make the best use of the machine so as
to prolong life, avoid damage, optimise work and, above all, to avoid injury to the operator and anyone within
range of the machine.
WARNING SIGNS
1) Before beginning operations, read the instruction manual carefully.
2) Before doing any maintenance or repair work, stop the machine at a
suitable spot. Turn off the tractor motor, apply the brake, remove the key
from the ignition and consult this manual.
3) This is a warning to use proper accident protection when carrying out
maintenance and repairs
DANGER SIGNS
4) Risk of possible ejection of blunt objects. Keep a safe distance
from the machine
5) Indicates that anyone coming within range of the moving tine arms
will be seriously injured.
Keep a safe distance from the machine.

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6) Indicates that there is a risk of crushing your hands. Keep your
distance.
7) Indicates danger caused by accidental fall of suspended arms.
Keep safe distance.
8) Indicates that it is dangerous to touch the cardan (P.T.O.) shaft.
For all the other information regarding the cardan shaft, see the use
and maintenance booklet specifically for the cardan shaft which,
together with this manual, makes up the documentation on safety, use
and maintenance of the machine.
INDICATION SIGNS
9) Indicates a greasing point .
10) Shows the direction of rotation of the power takeoff and the
maximum number revolutions.
OIL LEVEL
11 Indicate a oil point.
MANUAL SIGNS.
Indicates an impending dangerous situation which, if not avoided, will
cause death or severe personal injury.
Indicates a potentially dangerous situation which, if not avoided, could
cause death or severe personal injury, including dangers which are
present when protection is removed.
indicates a potentially dangerous situation which, if not avoided, can
provoke less severe or minor injuries.
3) General Summary Of Safety And Accident-
DANGER
ATTENTION
CAUTION

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Prevention Instructions
Read all the directions carefully before using the machine. When in doubt, seek advice from the
manufacturers.
The manufacturing company declines all responsibility for non-compliance with the following safety and
accident-prevention instructions.
1- Pay attention to the danger signs and symbols in this manual and on the machine.
2- Do not touch moving parts.
3- All work on the machine (including adjustments) must always be carried out with the tractor immobilized
and the engine switched off.
4- On no account may persons or animals be carried on the machine.
5- Driving the tractor with the machine connected is absolutely forbidden to persons lacking suitable
experience, or who are in poor health, or who do not have a suitable driving license.
6- All accident-prevention measures recommended in this manual should be scrupulously observed.
7- Connecting the machine to the tractor creates a different weight distribution on the axles and so it is
essential to ensure that the tractor-machine combination is stable in all anticipated working conditions. It
is therefore necessary to have exact instructions from the tractor manufacturers. If such instructions are
not available, suitable tests should be conducted in safe conditions in order to assess stability.
8- Once the machine is connected, it can only be controlled through a cardan shaft complete with the
required overload protection and guard secured with the appropriate small chains. Be aware of the
rotational direction of the cardan shaft.
9- Before operating the tractor and machine, check that all transport and operational safety devices are
complete and working.
10- When driving on public roads, you should comply with the Highway Code regulations for the country
concerned.
11- Do not exceed the tractor axle maximum weight and the total mobile weight. Heed transport regulations.
12- Before starting work, familiarize yourself with the control devices and how they work.
13- Wear suitable clothes. Do not wear clothing which is loose or which could become entangled in rotating
or moving parts.
14- Connect the machine to a suitably powerful tractor by using an appropriate lifting unit and in accordance
with instructions.
15- Take maximum care when connecting and disconnecting the machine to and from the tractor.
16- The machine and any road transport attachments must bear the appropriate signs and symbols and
have suitable protection.
17- Never leave the driving seat when the tractor is running.
18- It is extremely important to appreciate that road holding, steering and braking may be significantly
affected with the machine attached.
19- When turning corners with the machine attached, be aware of the fact that the centrifugal force will alter
due to the change in the center of gravity.
20- Before engaging the power takeoff check the preset revolution speed. Do not change speed from 540
rpm to 1000 rpm.
21- Under no circumstances should anybody stand near the machine or any moving parts. It is the duty of
the operator to ensure that this requirement is respected.
22- Before leaving the tractor, lower the machine with the lifting unit, stop the engine, apply the parking
brake and remove the ignition key from the instrument panel.

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23- Under no circumstances should anybody go between the tractor and the machine (Fig. 1) when the
engine is running and the Cardan shaft is engaged, especially without first having applied the parking
brake and placed chocks against the wheels.
24- Before connecting or disconnecting the machine to or from the 3-point linkage, put the lifting unit lever
into the locked position.
25- The connection pins on the machine must match the connection sockets on the lifting unit.
26- During transport, secure the lateral lifting arms with the appropriate chains and tighteners.
27- When the machine is raised during road transport, put the tractor's hydraulic lifter lever into the locked
position.
28- Only use the Cardan shaft provided by the manufacturer and, in case of replacement, substitute it with
one having the same characteristics.
29- Regularly check all protection on the Cardan shaft. This should always be in excellent condition and
securely fixed.
30- It is important to ensure that the protection on the Cardan shaft is complete.
31- Connection and disconnection of the Cardan shaft must be carried out with the engine switched off.
32- Pay particular attention to the correct connection and safety of the Cardan shaft and the power takeoffs
on the machine and the tractor.
33- Prevent the cardan shaft protection from rotating using the chains supplied.
34- Before engaging the power takeoff, make sure that there are no people or animals in the vicinity and that
the selected engine speed corresponds to that permitted. Never go above the maximum permitted.
35- Do not engage the power takeoff when the engine is not running.
36- Always disengage the power takeoff when the Cardan shaft
is at too wide an angle (it should never be more than 35° see
fig) and when it is not in use.
37- Only clean and grease the Cardan shaft when the power
takeoff is disengaged, the engine is off, the parking brake is
applied and the ignition key is removed.
38- On disconnecting the Cardan shaft, replace the protective
hood on the power takeoff shaft.
39- Prolonged use of the machine can cause the drive boxes to
become hot. To avoid any risk of getting burnt, avoid touching
these areas both during use and some time afterwards.
40- Periodically check screws and nuts for tightness and grip.
Tighten if necessary.
41- When carrying out maintenance work or replacing the blades, raise the machine and rest on adequate
supports.

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42- Use the quantities of grease and oil advised.
43- Spare parts must meet the requirements as defined by the manufacturer. Use only original spare parts.
44- Safety decals must always be clearly visible. They must be kept clean and replaced if they become too
illegible (they can be ordered from the agent if necessary).
45- The instruction booklet must be available for the lifetime of the machine.

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PRODUCT IDENTIFICATION
MAIN PARTS
1) BRACKET
2) DRAWBAR
3) PARKING STAND
4) HYDRAULIC KIT
5) CRANK
6) RATCHET
7) FRAME
8) R.H. GUARD
9) TINE ARM
10) TINE
11) GEARBOX
12) AXLE
13) CYLINDER
14) TYRE ASSY
15) SWATHING DEFLECTOR
16) TELESCOPING TUBE
17) L.H. GUARD
18) LIGHTING BRACKET
IDENTIFICATION PLATE
RPM
TRACTOR
RPM
ROTORS
POWER
REQUIRED
WHEEL
TYPE
OPERATIN
G WIDTH
TRANSPORT
WIDTH
WEIGHT
MAX 540
55
HP 40
18X8.50
4,2Mt
2100
KG 700
KW 29
8PLY
165”
83”
LBS 1550

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LOCATION OF SIGNS AND SYMBOLS ON THE MACHINE
1) SEE DRAWING 1 P.4
2) SEE DRAWING 2 P.4
3) SEE DRAWING 3 P.4
4) SEE DRAWING 4 P.5
5) SEE DRAWING 5 P.5
6) SEE DRAWING 6 P.5
7) SEE DRAWING 7 P.5
8) SEE DRAWING 8 P.5
9) SEE DRAWING 9 P.6
10) SEE DRAWING 10 P.6
11) SEE DRAWING 11 P.6
12) IDENTIFICATION PLATE

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CHAPTER 4
DELIVERY AND ASSEMBLY
Checking the machine on delivery
All parts are carefully checked before dispacth 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.
WEIGT PACKING
WEIGHT
KG
765
LBS
1700
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 permissable to stack 2-3 crates on top of each othe.
Make sure that they are perfectly aligned certically.
3) In the event of further transport, ensure that the machine iwhen on the
transporting vehicle.
ASSEMBLY

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Assembly is highly dangerous and must be carried out in strict accordance
with the following instructions. We recommend that assembly be performed
by qualified personnel. We also recommend that assembly be carried out in a
flat, open area with no people (particularly children) nearby who could be
severely injured if they were to touch or move any parts of the machine.
Assembly sequence:
Attach the arms (2) to the housing (1), placing them over the pins (3). Fasten
the arms by inserting spring pins (4) into holes (A), and then insert the inside
spring pins (5).
Attach the cylinder-adjustment assembly (2) to the drawbar (1), fastening with
the spring pin

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Rest the main frame (2) on stands and then insert the wear bushings (5). Insert pin (3) into
hole (A) and fasten with the spring pin (42). Position the drawbar (1) so that pin (6) can be
inserted, and fasten pin (6) with the spring pin (7).
Attach grease nipples (17) to the axle (2). Next check to see that the wear bushings are in
place on the wheel tandems (5), and mount the tandems on the axles, inserting spacers (3)
and (6), in order to limit play (the longer part of the wheel tandem should face the tractor),
and fasten with the washer (7) and nut (8). Mount wheels (10) on the tandem pins, first
placing the large guard (9) and then the small guard (11), the washer (12) and tighten with
the nut (13). Mount the parking stand (14) to the mount on the drawbar (1), and fasten with
pin (15) and clip (16). The machine can now be placed on the ground.

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HYDRAULIC SYSTEM ASSEMBLY
Remove the guard on the central screw of the housing (1), then screw on the cylinder (6),
without touching the ring (2) or the lower toothed washer (4). When the cylinder is tight,
bend one of the tabs of the upper toothed washer (5) on the milled part of the cylinder so
as to fasten it. Loosen screw (7) and turn the curve (8) towards the tractor hitch, then
tighten screw (7) and nut (18). While doing this operation, the barrel of the cylinder could
be loosened from the head ring, so check at the end of the operation to make sure that it is
tight. Attach the hydraulic line (9), which can be recognized by the inner gasket on the
curve (8), passing it through hole (A). Next attach the T connector (10) with lines (11) and
(14), and fasten the lines into the working position using the three line clamps (13), without
pulling the lines tight; in the area where the main frame is joined to the drawbar, the line
must make an arch, so as to allow movement between the two parts. Check carefully to
make sure that the opening of the tilt adjustment cylinder does not pull on line (14). If it
does, lengthen the loose section between the two line clamps (13) that hold the lines in this
area. The short line (11) feeds the tilt adjustment cylinder and is attached by means of the
nipple (12) and washer (17). Attach the tap (15) and quick-release coupling (16) to the end
of line (14).

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Mount the safety hook (2) by inserting it into hole (A), and then place the spring (4) and
washer (5) over the pin, fastening in place with pin (6). Insert safety pin (7) in hole (B).
ATTENTION: Mount the high rubber pad (7) to the right outside hole with nuts (6),
taking also the plate (8); in the other holes the low rubber pads (5), in the left outside
hole fasten also clamp (2) with screw (3) and washer (4). Mount protection frame (11) to
the left support (10) using screws (12) and nuts (13), then insert the assembly into the
hole as shown in the illustration, fastening the protection frame with pin (17) and clamp
(14), and attach cap (20) to the end of the protection frame. Mount bracket (9) to the
plate (8) and then mount protection frame (16) to the right support (15) and insert the
assembly into the hole, following the same procedure used for the left side of the
machine.

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Mount safety hook (1) on to the pin (A) welded on to the frame, mount on safety hook
the screw (2) and nut (3). Mount spring (4) to help suspension between the pin and the
plate welded on the drawbar (see following diagram).
Adjust screws (M10 x 60 fully threaded) so that the safety hook turns partially and is
positioned vertically when the protection frame is horizontal.
Use brackets (22), screws (18) and (15) and nut (10) to mount plate carrier extension
(19) on to the left-hand protection frame. Also mount plate (14) on the outside of the
internal bracket, whereas plate (24) must be mounted on the inside of the external
bracket. In order to fasten the extension tighten screw (20) and lock (21). Use screws
(8) to mount signal frame (6) on to the frame (1).

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In order to mount swathing deflector (29) insert the slanting metal tabs (30) into the
external slots and the straight tabs into the central slots, and then rest the swathing
deflector on the inside of side frame (27) and place plate (28) on the outside; use screws
(32) and nuts (33) to fasten everything into place.
Now use screws (23) and (26) to mount this group on plate carrier extension (19).
Attach the universal joint casing (2) to mount (10) using screws (3), nuts (4) and washers
(5).

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Mount the grease nipple (1) on all pin.
Before assembling the rake arms, raise the protection frames and use hook 23 to
hold them up. If the machine has to be set up for work, mount detachable arms 44
on to the fixed arms 45 and fasten them with pin 43; the two holes on the
detachable arms are to adjust swath width. The maximum working width is obtained
by assembling the arm on the innermost hole. If the machine has to be prepared for
transport or for storage, mount the detachable arms in position (R) in holes (A) on
the frame.

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CHAPTER 5
ADJUSTMENT, PREPARATION AND USE
INTRODUCTION
Connection to the tractor is higly dangerous. Take great care and carry out the entire
operation in strict compliance with the following instruction.
Nobody should go near the area between the tractor and the machine.
Check that all warning and danger signs are in place and legible.
Check that the tractor is in good running order. Check the engine oil, gerbox oil, brake
fluid and cooling water levels as well as the tyre pressures.
Refer to the tractor operator’s manual.
CONNECTION TO THE TRACTOR
Connect the machine to the tractor, hitching it to the drawbar bar at point (1). If the
two-point crosspiece is used, lock the equalizers (10) using the optional screws (8)
and nuts (9). Attention: do not use screws (8) if the machine is hitched to the
drawbar. After the machine is hitched, loosen the parking stand (2) and remove pin
(3), then rotate the stand upward towards the back of the machine and insert pin (3) to
hold it in the resting position.
Once this procedure is completed, insert the quick-release coupling (4) into the tractor
socket and open the tap (the lever must be parallel with the line, as shown in the
illustration). At this point, work carefully with the hydraulic distributor to make sure that
the frame is completely lowered, then adjust the height of the tines above the ground.
To change the distance between the tines and the ground, turn screws (6). By rotating
the crank (7), the tilt of the machine relative to the ground is adjusted.

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CONNECTING THE CARDAN SHAFT
More detailed information may be found in the cardan shaft manual which, together with this manual, is an
essential part of the accident-prevention documentation.
It is your responsibility to read and comply with this documentation. If information given in this manual should
conflict with that given in the cardan shaft manual, you should follow the instructions given by the cardan
shaft manufacturer.
Fit the cardan shaft and check that the shaft is connected correctly both at the tractor end and at the machine
end. For more details, see the descriptions on the following pages.
If a safety system is provided, this should be fitted to the machine end, not to the tractor end.
During both transport and use, avoid conditions where the cardan transmission shaft is extended to the
maximum. In all working conditions, the telescopic tubes must overlap by at least 1/3 of their length ).
Conversely, when the cardan shaft is contracted to the maximum, there should still be a gap of approximately
50 mm (2") .
Take particular care when connecting the two cardan shaft end forks and make sure that they are fully
secured. This is achieved by inserting the safety pins and bolts (1) in the special slots (2) on the power
takeoff shafts on both the tractor and machine ends.
A loose shaft could come apart and cause considerable mechanical damage and serious injury to persons.