sitrex SM 3600 Quick setup guide

ASSEMBLY, USE AND MAINTENANCE
SPARE PARTS LIST
FLEX-WING MOWERS
SM 3600 - 4500 - 5200
2007/1

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TABLE OF CONTENT
CHAPTER 1 GENERAL INTRODUCTION - WARRANTY ................................................................... 3
1.1 INTRODUCTION___________________________________________________________________________________3
1.2 WARRANTEE_____________________________________________________________________________________3
CHAPTER 2 GUIDE TO THE SIGNS AND SYMBOLS USED IN THIS MANUAL AND THEIR LOCATION
ON THE MACHINE............................................................................................................. 4
2.1 SIGNS AND SYMBOLS _____________________________________________________________________________4
2.2 WARNING SIGNS__________________________________________________________________________________4
2.3 DANGER SIGNS___________________________________________________________________________________5
2.4 INDICATION SIGNS________________________________________________________________________________7
2.5 LOCATION OF SIGNS AND SYMBOLS ON THE MACHINE ________________________________________________8
CHAPTER 3 GENERAL SUMMARY OF SAFETY AND ACCIDENT - PREVENTION INSTRUCTIONS
.......................................................................................................................................... 10
3.1 GENERAL SUMMARY OF SAFETY AND ACCIDENT-PREVENTION INSTRUCTIONS __________________________10
CHAPTER 4 PRODUCT IDENTIFICATION .......................................................................................... 13
4.1 TECHNICAL DATA________________________________________________________________________________13
4.2 MAIN MACHINE PARTS____________________________________________________________________________13
CHAPTER 5 DELIVERY AND ASSEMBLY.......................................................................................... 14
5.1 CHECKING THE MACHINE ON DELIVERY ____________________________________________________________14
5.2 ASSEMBLY SEQUENCE ___________________________________________________________________________16
CHAPTER 6 ADJUSTMENT, PREPARATION AND USE.................................................................... 25
6.1 INTRODUCTION__________________________________________________________________________________25
6.2 MOUNTING TO THE TRACTOR _____________________________________________________________________25
6.3 CONNECTING THE CARDAN SHAFT_________________________________________________________________26
6.4 TRANSPORT BY ROAD____________________________________________________________________________27
6.5 GENERAL INSTRUCTIONS FOR FIELD USE___________________________________________________________28
6.6 GENERAL INSTRUCTIONS FOR USE ________________________________________________________________28
CHAPTER 7 MAINTENANCE ............................................................................................................... 36
7.1 MAINTENANCE DIRECTIONS_______________________________________________________________________36
7.2 REPAIR INSTRUCTIONS___________________________________________________________________________37
7.3 LAYING UP FOR EXTENDED PERIODS ______________________________________________________________37
7.4 MAINTENANCE AND TESTING______________________________________________________________________38
7.5 MAINTENANCE POINTS ___________________________________________________________________________39
7.6 CARDAN SHAFT MAINTENANCE____________________________________________________________________40
7.7 NOISE AND VIBRATION ___________________________________________________________________________41
7.8 SCRAPPING THE MACHINE________________________________________________________________________41
CHAPTER 8 SPARE PARTS ……………………………………………………………………………………42

GENERAL INTRODUCTION - WARRANTY
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CHAPTER 1
GENERAL INTRODUCTION - WARRANTY
1.1 INTRODUCTION
The user of the lawn mower (later referred to as the "machine") is responsible for his own safety as well as
that of the people in proximity of it.
It is therefore crucial that the user has detailed information on the use and maintenance of the machine and
on how to connect it correctly to a tractor.
This machine can operate only through a Cardan shaft attached to the power takeoff of an agricultural tractor
equipped with a draw-bar and a hydraulic system. This manual is intended both for the operator and those
responsible for maintenance. Essential instructions and procedures to follow during use and maintenance of
the machine are conveyed through drawings and text.
The user is responsible for ensuring that the machine is connected to the tractor and is operated in com-
pliance with current legal provisions.
The machine must only be operated and maintained by persons who have read this manual. The manual
should always be kept to hand. It is particularly important to read CHAPTER 3 on general safety instructions.
These instructions must always be heeded.
If you are in any doubt, contact the Assistance Center or your nearest dealer.
1.2 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 Ma-
nual.
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 repaired 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 with 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.
NOTE:
ALL WARRANTY WORK OR REPAIRS MUST BE APPROVED BY THE MANUFACTURER BEFORE WORK BEGIN.
ANY WORK OR REPAIRS MADE BEFORE APPROVAL MAY NOT BE COVERED UNDER WARRANTY.
PLEASE NOTIFY YOUR SALES & SERVICE DEPARTMENT OF THIS POLICY.

GUIDE TO THE SIGNS AND SYMBOLS USED IN THIS MANUAL AND THEIR LOCATION ON THE MACHINE
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CHAPTER 2
GUIDE TO THE SIGNS AND SYMBOLS USED IN THIS MANUAL
AND THEIR LOCATION ON THE MACHINE
2.1 SIGNS AND SYMBOLS
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, optimize work and, above all, to avoid injury to the operator and anyone within
range of the machine.
2.2 WARNING SIGNS
1. Before beginning operations, read the in-
struction manual carefully.
2. Prior to any maintenance work, adjust-
ments or repairs, stop the machine, set it
on the ground, turn off tractor and apply
parking brake. Remove key from ignition
and consult the instructions and main-
tenance manual.
3. This is a warning to use proper accident
protection when carrying out mainten-
ance and repairs
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GUIDE TO THE SIGNS AND SYMBOLS USED IN THIS MANUAL AND THEIR LOCATION ON THE MACHINE
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4. Warns the danger of cutting blade
5. This sign is a reminder to check the oil
level.
2.3 DANGER SIGNS
6. Indicates an impending dangerous situa-
tion which, if not avoided, will cause
death or severe personal injury.
7. General danger
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GUIDE TO THE SIGNS AND SYMBOLS USED IN THIS MANUAL AND THEIR LOCATION ON THE MACHINE
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8. This indicates a potential danger which, if
not avoided, could cause serious per-
sonal injury. It also indicates danger
when removing protective guards.
9. Indicates a potentially dangerous situa-
tion which, if not avoided, can provoke
less severe or minor injuries.
10. Risk of possible ejection of blunt objects.
Keep a safe distance from the machine.
11. This indicates the risk of cutting one's
foot. Keep at a safe distance.
12. This indicates the risk of cutting one's
hand. Keep at a safe distance.
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GUIDE TO THE SIGNS AND SYMBOLS USED IN THIS MANUAL AND THEIR LOCATION ON THE MACHINE
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13. Indicates that it is dangerous to touch the
Cardan shaft. For all 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 ma-
chine.
14. Indicates danger caused by accidental
fall of suspended arms. Keep safe dis-
tance
2.4 INDICATION SIGNS
15. This indicates the oil level
16. Indicates a greasing point.
17. Shows the direction of rotation of the power takeoff and
the maximum number of revolutions.
NOTE: All the signs and symbols so far shown appear in the
manual. Some of these are also on the machine: for their lo-
cation, the diagram on page 8.
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GUIDE TO THE SIGNS AND SYMBOLS USED IN THIS MANUAL AND THEIR LOCATION ON THE MACHINE
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2.5 LOCATION OF SIGNS AND SYMBOLS ON THE MACHINE
- Machine casing
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1) Serial number plate
2) See point 1 page 4
3) See point 2 page 4
4) See point 11 page 6
5) See point 12 page 6
6) See point 7 page 5
7) See point 10 page 6
8) See point 16 page 7
9) See point 15 page 7
10) See point 5 page 5
11) See point 17 page 7
12) Manufacturer decal
13) See point 4 page 5
14) Decal with model of machine

GUIDE TO THE SIGNS AND SYMBOLS USED IN THIS MANUAL AND THEIR LOCATION ON THE MACHINE
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- Machine
1) Serial number plate
2) See point 1 page 3
3) See point 2 page 3
4) See point 3 page 3
5) See point 5 page 4
6) See point 7 page 4
7) See point 14 page 6
8) See point 17 page 6
9) Manufacturer decal
10) Decal with model of machine

GENERAL SUMMARY OF SAFETY AND ACCIDENT - PREVENTION INSTRUCTIONS
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CHAPTER 3
GENERAL SUMMARY OF SAFETY AND ACCIDENT
- PREVENTION INSTRUCTIONS
3.1 GENERAL SUMMARY OF SAFETY AND ACCIDENT-PREVENTION
INSTRUCTIONS
Read all the directions carefully before using the machine. When in doubt, seek advice from the manufactur-
ers.
The manufacturing company declines all responsibility for non-compliance with the following safety and acci-
dent-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 expe-
rience, 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 es-
sential 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 re-
quired overload protection and guard secured with the appropriate small chains. Be aware of the rotation-
al 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 af-
fected with the machine attached.

GENERAL SUMMARY OF SAFETY AND ACCIDENT - PREVENTION INSTRUCTIONS
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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.
23- Under no circumstances should anybody go between the tractor and the machine (Fig. 3.1) 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 se-
curely 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
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GENERAL SUMMARY OF SAFETY AND ACCIDENT - PREVENTION INSTRUCTIONS
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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°Fig. 3.2) 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 tight-
ness and grip. Tighten if necessary.
41- When carrying out maintenance work or re-
placing the blades, raise the machine and rest
on adequate supports.
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
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CHAPTER 4
PRODUCT IDENTIFICATION
4.1 TECHNICAL DATA
The machine consists of three mowers mounted on a frame with lift arms to reduce overall dimensions dur-
ing transport. The oscillating mower arms enable the machine to adapt to ground conditions during work.
The 3600 version consists of two SM/120 and one SM/150, the 4500 model has two SM/150 and one
SM/180, and the 5200 version has two SM/180 and one SM/230. The largest cowl is mounted at the back in
all models. The technical specifications for each model are given in the table.
Model
Approximate
Weight
Lbs / kg
RPM
of
gearbox
Cu
t
ting
width
feet
Blade tip
speed
m/s
No.
Blades
Cutting height
Power
required
HP/kW
mm
inches
SM/3600 2600 / 1180 540* 12 70. 5 9 20 – 125 3/4" – 5" 30/22
SM/4500 2800 / 1270 540* 15 70. 5 9 20 – 125 3/4" – 5" 35/26
SM/5200 3100 / 1410 540* 17 70. 5 11 20 – 125 3/4" - 5" 40/30
4.2 MAIN MACHINE PARTS
ITEM Description ITEM Description
1 Machine casing 9 Gearbox
2 Drawbar 10 Wheel
3 Parking stand 11 Wheel
4 Frame 12 Cylinder
5 Bracket 13 Cardan shaft
6 Rear arm 14 Rope
7 Lateral arm 15 Hose
8 Axles Name plate
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CHAPTER 5
DELIVERY AND ASSEMBLY
5.1 CHECKING THE MACHINE
ON DELIVERY
All parts carefully checked before dispatch or deli-
very. On receiving
the machine,
ensure that it
not been damaged during transport. If damage has
occurred, contact the dealer concerned.
How the machine is lifted will depend on the model
and the type of packing. Details are given below.
The packing can vary from country to country de-
pending on transport requirements.
Lift the machine using a forklift truck, crane or oth-
er 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 move-
ment 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.
The manufacturer packages the machines accord-
ing to the following models:
Fig. 5.1: represents the standard packaging for
the lawn mower with rear grass ejector.
Fig. 5.2: represents the packaging for cart.
Packaging consists of a crate containing the load-
bearing frame, plus three pallets for the three
mowers. Alternatively, the three mowers can be packed in a single crate. The following table gives the weight
pallet for each mower, the weight of the frame (the machine without the mowers) and the gross weight of the
crate with the frame. The final column shows the weight of the three mowers when packed together in a sin-
gle crate.
PACKAGING TYPE MACHINE WEIGHT KG-LBS
120 150 180 230 Machine
Cart
Fig. 5.12
Single crate
Fig. 5.1 178-390 208-455 239-525 310 – 685 SM/3600
SM/4500
SM/5200
* Weight of crated machine
** Net weight of one machine each model
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Notes:
1) Slightly different packaging from those represented may occasionally be
used, depending on the methods of transport or handling.
2) 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.
3) When storing, it is permissible to stack 2-3 crates on top of each other. Make sure that they
are perfectly aligned vertically.
4) In the case of further transportation, make sure the machine is well secure on the transport
means.

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5.2 ASSEMBLY SEQUENCE
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, 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.
5.2.1
Keep the main casing 1
approx. 400/600 mm
above the ground, resting
it on suitable supports or
on the forks of a forklift.
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5.2.2
Fit the protective cap 2 to
the correct mounting on
the gearbox 1 using the
flat washers 3 and the
screws 4.
For this step you will use:
Item 2: n°2 - flat washers
D 8.5 (D 21/64)
Item 3: n° 2- screws
M8x16 (5/16x5/8)
5.2.3
Fit the axles 2 to the
main casing 1. To do this
you must initially remove
the central screws 6 and
the washers 4 & 5, which
attach the protective,
guard 3 to the main cas-
ing 1. Then fix the axles
2 to their correct mount-
ings on the main casing
1 using the flat washers
4, the notched washers
5 and the screws 6. For
this step you will use:
Item 4: n° 6 - flat wash-
ers D 15 (D 19/32)
Item 5: n° 6 - notched
washers D 15 (19/32)
Item 6: n° 6 - screws
M14x95
(D 19/32x3"3/4)
Warning: The gear
boxes have already been assembled on the cowls. The side cowls contain the lateral power take-
off (on the right or left-hand side according to which side it has been assembled on), whereas the
box on the rear cowl is assembled as shown in the picture. The side cowls have normal axles (as
shown in the picture), whereas the rear cowl axle uses bushings with hexagonal holes on the front
of the machine. The reason for this is that the wheel must be firmly held facing forwards in order to
guarantee the machine better forward movement. When the rear cowl is an SM/150, the axles are
straight, whereas the axles for the SM/180 and SM/230 converge towards the centre of the ma-
chine in order to decrease their overall dimensions.
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5.2.4
Fit the wheel units 2 to their correct mountings on the axles 1. Connect
the shim 3 (D 30/40x12 - D 1"3/16x1"9/16x1/2") to the axle on wheel unit 2. The shim is selected according
to the required cutting height (see page 31), therefore what we are describing is an example.
Next, the wheel unit 2,
onto which the shim 3 has
been secured, must be
connected to the correct
seat on the axles 1. Now
fasten onto the axle of the
wheel unit 2 the shims:
item 4 (D 30/40x32 - D
1"3/16x1"9/16x1x1”1/4)
item 5 (D 30/40x25 -D
1"3/16x1"9/16x1") n°3 pz
item 6 (D 30/40x6 - D
1"3/16x1"9/16x1/4)
item 7 (D 30/40x2 - D
1"3/16x1"9/16x5/64).
At this stage secure eve-
rything with the split pins
8. Fit the grease nipples 9
to the correct positions on
the axles 1.
For this step you will use:
Item 8: n°4 - split pins
D 8 (5/16)
Item 9: n° 4 - grease nip-
ples M6 (15/64)
For the rear mower, repeat the assembly instructions given above but assemble the wheel clamp with the
hexagonal pintle on the front part. Assemble the bushings with an enlarged hole on to the pintle.
5.2.5
Use the screws 3 (M16x45)
and the nuts 4 (M16) to fas-
ten the draw-bar 1 to the
main frame 2. The screws
must be inserted as shown
in the diagram.
Use the screws 6 (M16x140)
and the nuts 4 (M16) to fas-
ten the rear crosspiece 9 to
the main frame with plate 10.
Use the same type of screws
to assemble the wheel arms.
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5.2.6 Use the cap nuts (M16x1.5) to fasten the wheels to the frame. Assemble the support foot and use the
machine pin to fasten into position. The machine is now stable and can be rested on a firm, flat surface.
5.2.7 Mount the entire drive gear on the frame according to the diagram and assemble the short shields (20)
on the box. After having fastened the shafts with the joint 83 and 22 into position by means of screw 84 / 22
and nut 51 / 15, protect them with the casings 15 and 23. The rear support plate 24 is fastened to the rear
plate by means of a 30mm diameter pin holding the articulated rear arm, as well as by the screws 25. The
screws should be tightened only after the arm has been assembled and not when the plate is put into posi-
tion.