CROSSJET AC 92-18 User manual

GB User‘s manual
DBedienungsanleitung
AC92-18
AC92-20
AC92-23 4x4
FManuel d’utilisation
IT Manuale di istruzioni NL Gebruikershandleiding
ES Manual de usuario
PL Instrukcja obsługi

2
1.2
1
7
5
4
6
3
2
1.3.1
TYPE N°: AJ-102
ENGINE: B 3 6 9
YEAR OF PRODUCTION: xxxx
WEIGHT: 299kg
FABRICATION: Seco GROUP a.s., BRANCH PLANT 02
Jicin , Jungmannova 11
Czech Republic
&S 2 HP VANGUARD (1 . KW)
MADE IN EUROPE
1
2
3
4
5
6
7
8
9
CE CONFORMITY: 2006/42/EC;2004/108/EC
2000/14/EC;2002/88/EC
1.3.2a
100 dB

3
1.3.2b
MAX
18o
1.3.2c
1.3.2d

4
3.1
23
5
4
1
3.3a

5
3.3b
2
1
3.3c

6
3.3d
4.1 3
4
5
6
7
8
2
1

7
6.3.13
AC 92-18(20) AC 92-23 4x4
MIN
MAX
6.4
50
50
5050
50 50
50
10
50

8
FOREWORD
Dear customer,
Thank you for purchasing this riding mower from Seco GROUP a.s., a company renowned both in Europe and
internationally as a manufacturer of quality machines and accessories for the maintenance of grass areas.
This user’s manual includes instructions about the safe assembly, operation and maintenance of your machine.
Study this user‘s manual carefully. Follow the instructions contained in this user‘s manual
precisely so that operating the machine is easier and that it is used optimally and has a long
lifetime. Do not use the machine until you have thoroughly read all instructions,
restrictions and recommendations contained in this user’s manual.
Keep the user‘s manual for future use. This user‘s manual needs to be considered a part of
the riding mower that must be included with the tractor in the event that it is sold.
If anything is unclear or you have questions, do not hesitate to contact one of our more that
100 authorised, professionally-equipped service centres located all over Europe, where trained and
tested experts will be ready to assist you.
SYMBOLS USED IN THIS USER‘S MANUAL
SYMBOL MEANING
These symbols mean „ATTENTION” and “WARNING”, they inform you about things that
may damage your machine and/or cause serious injury to the user.
This symbol indicates an important instruction, property, procedure or issue, which you
need to be aware of and adhere to during assembly, operation and maintenance of the
machine.
This symbol indicates useful information relating to the machine or to its accessories.
The symbol is a reference to an image in the front part of the user‘s manual. It is always
accompanied by the number of the image.
This symbol is a reference to another chapter in this or another user‘s manual and most
often it is shown together with the number of the chapter to which it refers.
REFERENCES TO DIRECTIONS
Left and right side Front and rear side
LR
RF
L = Left side, R = Right side R = Rear side, F = Front side

9
1. TECHNICAL INFORMATION
1.1 USE
The machine model AC92-18(20) or AC92-23 4x4 under the brand name CROSSJET is a dual-axle
terrain riding mower designed for mowing maintained and unmaintained grass-covered level and
sloped areas up to an incline of 18°(32%), that are free of foreign objects (stones, fallen branches,
bones, hard items, etc.). It can be used to mow multi-year vegetation, intertwined with raspberries,
blackberries and various other weeds.
Any use of this riding mower, which is not described in this user’s manual and which
goes beyond the use here described is considered to be in contradiction to its
intended purpose or use. The manufacturer of the machine is not responsible for damages
arising from such use; the risk is borne by its user. The user is also responsible for adhering
to the conditions prescribed by the manufacturer for the operation, maintenance and repairs
of this machine, which may only be used, maintained and repaired by persons that
know these conditions and have been informed about possible dangers.
Only accessories, which have been approved by the manufacturer may be connected
to the machine. The use of other accessories will result in the warranty being
immediately void.
1.2 MAIN PARTS OF THE RIDING MOWER
Riding mower models AC 92-18, AC 92-20 or AC 92-23 4x4 consist of the following basic sections:
1.2
(1) Hood with storage space
The hood is a combination of plastic and metal covers, which contain the storage space for
the battery.
(2) Frame with a bumper
The frame with the bumper serve as a bearing element for most of the main parts of the
machine.
(3) Front axle with wheels including steering*
The front axle enables the wheels to turn. The wheels are turned by the steering wheel by
means of a comb mechanism.
The AC 92-23 4x4 machine is equipped with front-wheel drive. All-wheel drive is activated
automatically, with power distributed to the individual axles depending on the current
traction conditions and the travel mode (forward or reverse).
(4) Mower deck
The mower deck mows the grass. It is located under the machine. It consists of a cover,
main plate, blade holders and two massive mowing blades. The deck is powered by the
machine’s engine through an electromagnetic clutch and a V-belt.
(5) Engine, gear box including rear-wheel drive via a by-pass
The four-stroke petrol engine is mounted to the frame in the rear part of the machine. The gear
box with hydrostatic power transmission serves to change gears while driving. The by-pass lever is
located on the machine’s rear plate. It serves to activate and disable the gear box for the rear wheels.
(6) Folding frame of the machine
The folding frame is intended to prevent the machine from rolling over by 180° if for any
reason it loses stability and rolls on to its side.
(7) Driver’s location
The comfortable seat enables easy access to all control elements on the machine. The seat
used ensures safe and comfortable operation.
*ATTENTION: The AC92-23 4x4 machine does not enable for construction reasons the
disconnection of the front axle drive – the hydraulic system is not equipped with a by-
pass valve, which significantly limits the option of moving the machine when the engine
is not running. During such movement the front axle is significantly overloaded and may
be damaged. The by-pass lever on this machine is primarily used to bleed the hydrostatic
system. The machine must not be used (gear shifted into drive) if the by-pass lever is in the
disengaged position - there is a danger of damage to the transmissions!!

10
1.3 PRODUCT IDENTIFICATION LABEL AND OTHER LABELS WITH
SYMBOLS USED ON THE MACHINE
1.3.1 PRODUCT IDENTIFICATION LABEL
Every riding mower is marked with a product identification label, located underneath the seat. It can
be accessed by lifting the seat.
1.3.1
1. Machine model
2. Engine model
3. Year of production
4. Weight
5. Name and address of the manufacturer
6. EC codes used to assess the product’s compliance
7. Compliance mark of the product
8. Logo of the manufacturer
9. Guaranteed noise level according to directive 2000/14/EC
The seller will write down the serial number on the other side of the front page of this
manual when handing over the machine.
1.3.2 OTHER LABELS AND THEIR MEANINGS
The following labels and stickers are attached to the machine:
Labels on the mowing deck:
1.3.2a
Danger Do not step
on
Rotating
tools
100 dB
Guaranteed
noise level
Labels on the fairing under the seat:
1.3.2b
Danger
Do not
touch
during
operation
Follow the
manual when
repairing
Do not leave
the machine
when driving
Caution,
deflected
objects
Read the
manual
Do not mow
near other
people
Do not
take on
passengers
Do not drive
perpendicular
to the slope
Keep
unauthorised
persons at a
safe distance
MAX
18o
Maximum
working
incline

11
Labels on the rear side of the machine:
1.3.2c
Careful
Hot
surface!
Danger of
burns
Labels at the travel direction lever:
1.3.2d
Choke
Cruise control
0Cruise control activated
1Cruise control deactivated
Fast
Slow
FTravel forward
NNeutral
RTravel in reverse
It is strictly forbidden to remove or damage labels and symbols attached to the
accessory. In the event of damage or illegibility of the label, please contact the supplier or
machine manufacturer and request a replacement.

12
1.4 TECHNICAL PARAMETERS
BASIC PARAMETERS UNITS AC 92-18 (20) AC 92-23 4x4
Dimensions of the machine
(length x width x height) [mm] 2310 x 1010 x 1510 2310 x 1050 x 1510
Wheelbase
Front
[mm]
814 814
Rear 780 790
Weight of the machine [kg] 317 350
Speed forward / reverse [km/h] 0-8.5 / 0-4.5 0-9 / 0-5
Mowing height [mm] 50-100
Mowing width [mm] 920
Wheel dimensions
Front
["]
16x6.5-8 16x6.5-8
Rear 20x10.0-8 20x10.0-8
Fuel tank capacity [l] 12
Fuel type --- Lead-free petrol Natural 95
Guaranteed emission level of
acoustic power LWA
[dB] <100
Declared emission level of acoustic
pressure at the place of operation
LpAd according to EN ISO 11201 [dB] <100
Type of battery --- 12V 24aH 12V 32aH
* - for specific values see the table on the next page.

13
Engine Revolutions ±100
(min-1)
Declared emission level
of acoustic pressure at
the place of operation
LpAd (dB) according to
EN ISO 836+A1/A2,
Annex H and EN ISO 11201
Vibration acceleration aggregate value (m.s-2)
according to EN 836+A1/A2, annex G
seat steering
wheel floor
BS18 3000 88.4 0.23 2.38 1.61
total vibrations av
according to
EN 1032
vibrations transferred to
the arm ahv
according to EN 1033
BS20 3000 90 0.56 < 2.5
BS23 3000 91 1.5 < 2.5

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2. WORK SAFETY AND HEALTH
Riding mowers models Ac 92-18, AC 92-20 and AC 92-23 4x4 under the brand name CROSSJET are
manufactured according to valid European safety norms. The machine’s manufacturer confirms this
fact in the Statement of compliance, which is included at the end of this user’s manual ( 10).
If this machine is used properly and according to the user’s manual, it is very safe.
In the event that work safety is not adhered to and all warnings in this manual are
not respected, this riding mower may cut off hands, legs or deflect objects and
so may cause serious injury or death to persons, damage or destructions of the
machine or one of its parts or accessories.
2.1 SAFETY INSTRUCTIONS
The person primarily responsible for their own safety and the safety of others during the operation
of the riding mower is its user. The manufacturer takes no responsibility for the injury of persons or
damage to the machine and ecological damage resulting from the machine not being used and operated
in accordance with all safety instructions included in this user’s manual.
2.1.1 GENERAL SAFETY INSTRUCTIONS
!This machine may only be driven by a person over 18 years of age that has read this user’s manual.
!The user of the machine is responsible for the safety of persons in the vicinity of the working area of
the machine.
!It is not permitted to perform any technical modifications to the machine and its accessories without
the manufacturer’s written consent. Unauthorised modifications may lead to hazardous work safety
conditions and void the warranty.
!Adhere to all requirements relating to fire safety ( 2.4).
!Do not remove safety stickers or labels from the machine.
!Do not stay in the vicinity of the machine or under it, if it is lifted and is not sufficiently secured
against falling or tipping over in the lifted position.
!Always turn off the mowing deck and engine and take the key out of the ignition, when:
you are cleaning the machine
you are removing accumulated grass from the mowing deck
you have driven over a foreign object and it is necessary to check whether the machine has been damaged
or it is necessary to remedy the damage
the machine is vibrating with unusual force and it is necessary to identify the cause of the vibrations
you are repairing the engine or other moving parts (also disconnect cables from the spark plugs)
2.1.2 BEFORE USING THE MACHINE
!Do not use the riding mower if it is damaged or if any of its protective elements are missing. All covers
and other protective elements must always be in their place. Therefore, do not remove or put out of
operation any of the machine’s protective elements. Regularly check that these elements are working
correctly.
!Do not work with the machine after consuming alcohol, drugs or medication affecting your perception.
!Do not work with the machine if you suffer from dizziness, fainting or if you are weakened or distracted
in any other way.
!Before putting the machine into operation thoroughly learn about all the control elements and ensure
that you can control them in such a way that if necessary you can immediately stop or turn off the
engine.
!Do not adjust the engine regulator or the engine speed limiter.
!Before you start working with the machine, remove from the surface of the area you will be mowing,
all stones, pieces of wood, wire, bones, fallen branches and other items, which could be deflected
during the mowing process.

15
!Remove all defects before further use. Before starting work thoroughly check that the belts are
tensioned, the blades are sharp and that the area inside the mowing deck is clear.
2.1.3 WHILE OPERATING THE MACHINE
!As this machine is intended for mowing grass on unmaintained areas where the operator may not
always have full visibility and knowledge of the condition of the area being mowed (trenches or holes),
the machine is equipped with a folding frame.
!The machine must not be used for work on slopes with an incline greater than 18° (32%), and when
using the 4x4-drive on slopes with an incline greater than 20°(32%).
!Transport of other passengers, animals or loads directly on the machine is forbidden. Transport of
loads is only permitted on trailers approved by the machine’s manufacturer.
!Even when leaving the machine for a short time, always remove the key from the ignition.
!If you are driving the machine away from the work area where you are mowing, always disengage the
mowing deck and lift it to the transport position.
!Do not mow near piles of material, holes or banks. The riding mower may suddenly roll over if the
wheel goes over the edge of a hole, trench or an edge that may collapse.
!When working, avoid concrete supports, tree stumps, garden bed and footpath kerbs, which must
not come into contact with the blades and so cause damage to the mowing deck and the machine’s
mechanism.
!In the event of an impact into a rigid object, stop and turn off the mowing deck and engine and
inspect the entire machine, particularly the steering mechanism. If necessary perform repairs before
starting up the engine again.
!Whenever possible avoid using the machine in wet grass. Reduced traction may lead to skidding.
!Avoid obstacles (e.g. sudden change in the incline of a slope, trenches, etc.) on which the machine
could roll over.
!If mowing is disengaged, the mowing deck must always be in the transport position.
!Do not attempt to maintain the stability of the machine by stepping on the ground.
!Only use the machine in daylight hours or with good artificial lighting.
!Driving the machine on public roads is not permitted.
!When operating the machine do not wear loose clothing and short pants, use solid fully-closed
footwear. Never operate the machine when wearing sandals or barefoot.
!Do not leave the engine running in closed areas. The exhaust fumes contain substances that are
odourless but are fatally poisonous.
!Do not put your hands or legs underneath the mowing deck cover. Never put any part of your body
near the rotating or moving parts of the machine.
!Do not start the engine without an exhaust.
!Usually the noise emitted during mowing does not exceed the acoustic pressure and acoustic power
values specified in this user’s manual ( 1.4). In certain cases, however, it may under certain
conditions and due to the condition of the terrain exceed the specified noise levels for a short time.
!The machine manufacturer recommends the use of hearing protection when operating the machine
because stressing the hearing organ with an excessive noise level or long term effects of noise may
lead to permanent hearing damage.
!Always pay full attention to driving and other activities performed with the machine. The most common
causes of loss of control over the machine are for example:
Loss of wheel traction.
Excessive speed, not adjusting speed to current conditions and terrain properties.
Sudden breaking where the wheels lock up.
Using the machine for purposes for which is was not designed.

16
2.1.4 AFTER FINISHING WORK WITH THE MACHINE
!Always maintain the machine and its accessories clean and in good technical condition.
!The rotating blades are sharp and may cause injuries. Whenever handing the blades always use
protective gloves or wrap the blades.
!Regularly check the nuts and bolts securing the blades so that they are tightened with the appropriate
amount of torque ( 6.3.6).
!Pay special attention to lock nuts. After the nut is loosened a second time its locking capability is
reduced and therefore it needs to be replaced with a new one.
!Regularly inspect all components and if necessary replace those that need to be replaced based on
the manufacturer’s recommendations.
2.2 SAFETY INSTRUCTIONS FOR WORK ON SLOPES
Slopes are the main cause of accidents, loss of control over the machine or subsequent roll-overs,
which may lead to serious injuries or death. Mowing on slopes always requires an increased level of
attention. If you are not sure, or it exceeds your ability, do not mow on slopes.
!Riding mowers can be used on slopes with a maximum incline up to 18° (32%) and when 4x4-drive
is used on slopes with a maximum incline of 20°(32%) and only in the direction of the fall line, i.e.
upwards or downwards. More information 5.5.4.
!When changing direction increased care is needed. Do not turn on a slope unless it is absolutely
necessary.
!Watch out for holes, roots, uneven terrain. Uneven terrain may cause the machine to turn over. High
grass may conceal hidden obstacles. Therefore, remove all foreign objects from the area where you
wish to mow in advance.
!Select such a speed so that you do not need to stop when on a hill.
!Be very careful when attaching various hitch attachments. It may lead to a reduced stability of the
machine.
!Perform all movements on a slope slowly and smoothly. Do not make sudden changes to speed or
direction.
!Avoid starting up or stopping on a slope. In the event that the wheels lose traction, turn off the power
to the blades and drive slowly down the hill.
!Start driving very carefully and slowly when on a slope so that the machine does not “skip”. Always
reduce the machine’s driving speed before a slope, and especially when driving down a hill lower the
driving speed to minimum to take advantage of the braking effect of the transmission. This braking
effect is significantly higher on the AC 92-23 4x4 machine.
2.3 CHILD SAFETY
If the riding mower operator is not prepared for the presence of children then a tragic accident may
happen. The movement of a riding mower attracts the attention of children. Never assume that children
will remain in the location where you last saw them.
!Do not allow children without supervision in areas where you are mowing grass.
!Always be prepared - if children approach you then turn off the machine.
!Before and while reversing look behind you and at the ground.
!Never transport children, they may fall and seriously injure themselves, or they may dangerously
interfere with the riding mower controls. Never allow children to operate the machine.
!Pay increased attention in places with limited visibility (near trees, bushes, walls, etc.).

17
2.4. FIRE SAFETY
When reversing the riding mower it is necessary to adhere to fundamentals and regulations for
work safety and fire protection relating to work with this type of machine.
!Regularly remove flammable substances (dry grass, leaves, etc.) from the area around the exhaust,
engine, battery and anywhere, where they could come into contact with petrol or oil and subsequently
catch on fire and so result in a fire on the machine.
!Allow the riding mower engine to cool down before parking it in a closed location.
!Pay increased attention when working with petrol, oil and other flammable substances. These are
very flammable substances, the fumes of which are explosive. Do not smoke during this work. Never
unscrew the petrol tank cap and refill with petrol while the engine is running, if the engine is hot or if
the machine is in a closed location.
!Check the petrol lines before using and do not fill the petrol all the way up to the bottleneck of the
tank. The heat generated by the engine, sun and the expansion of the fuel may lead to the petrol
overflowing and a subsequent fire.
!For storing flammable substances use containers designed for this purpose. Never store a canister
with petrol or the machine inside a building near any source of heat.
!Pay increased attention when working with the battery. The gas inside the battery is highly explosive,
therefore do not smoke in the vicinity of the battery and do not use an open flame so as to avoid
serious injuries.

18
3. PREPARING FOR THE MACHINE FOR OPERATION
3.1 UNPACKING AND INSPECTING THE CONTENTS
The riding mower is supplied wrapped and in crate packaging. For transportation reasons some machine
assemblies are disassembled in the production plant and it is necessary to install them before putting
the machine into operation. The unpacking and preparation for operation is performed by the seller
within the scope of the pre-sale service.
Inspect immediately after delivery that the packed machine has not been damaged. In
the event of damage inform the carrier. If the complaint is not lodged in time, no potential
demands can be claimed.
Check that the machine model is the same as you ordered. In the event of an irregularity do
not unpack the machine and immediately report this discrepancy to the supplier.
3.1
1. Crate packaging
2. Seat
3. Folding frame
4. Steering wheel
5. Documentation (located underneath the hood)
Using a suitable tool (e.g. crowbar or hammer, etc.) remove the crate (1) and the packaging on the
machine.
Visually inspect the machine and assemblies for damage that may have occurred during transport.
Unpack all separatelz packed assemblies and inspect them.
The basic package includes:
Riding mower
Seat (2)
Folding frame in the folded state (3)
Steering wheel (4)
Documentation (5) (packed parts list, user’s manual for the riding mower, user’s manual for the
engine, user’s manual for the battery, service log book)
3.2 DISPOSAL OF THE PACKAGING
After unpacking the machine ensure that the packaging material is properly
disposed of or recycled. The disposal must conform to relevant waste disposal laws
valid in the user‘s country.
Disposal may be performed by a specialised company.
3.3 ASSEMBLY OF THE SEPARATELY PACKED ASSEMBLIES
Due to the technical nature of this task the machine is prepared for operation by the seller
of your riding mower (according to the following instructions).
Before starting installation, remove all covering, protective and fastening materials.
a) Install the seat springs:
Tilt out the seat.
 Unscrew the bolts holding down the seating spring under the bracket. Then install
the springs so that they are above the bracket.
Set the appropriate distance of the seat from the steering wheel by pressing the seat
positioning lever which is a part of the seat.
3.3a

19
Under no circumstances should you sit on the seat before installing the seat springs into a
working state! A collision with the hood could occur and damage it.
b) Install the steering wheel:
Using a hammer and a suitable rod, knock out the pin (2), which is inserted in the
shaft hole (1).
The steering wheel is set it two height positions, which are set by two holes in the
steering wheel shaft. Select the optimal steering wheel position, attach it on to the
shaft (1) and turn it so that the holes in the steering wheel and the shaft align.
Reinsert the pin into the hole and knock it in using a hammer.
3.3b
c) Set the folding frame to the correct position:
Using the quick coupler levers set the folding frame to the vertical position. 3.3c
d) Connect the battery:
Open the storage area in the hood and loosen the bolts on the battery pole terminals.
Black wire Place on the (+) pole of the battery and secure in place with the bolt.
Brown wire Place on the (-) pole of the battery and secure in place with the bolt.
3.3d
Connecting the wires in opposite to that described above will damage the machine.
When disconnecting the battery, always disconnect the negative (–) pole of the battery first.
When putting the battery into operation and when performing maintenance on it, proceed
according to the instructions in the user’s manual for the battery. Also follow all safety
instructions contained therein.
Now prepare the machine for the first start up according to the following chapter.
3.4 CHECKS PRIOR TO STARTING UP
Due to the technical nature of this task the machine is put into operation by the seller of your riding
mower (according to the manufacturer’s instructions).
3.4.1 CHECKING THE MOTOR OIL
The tractor must be in a horizontal position before the oil level can be checked. The cap of the filling
opening is located on the engine covers at the rear side of the machine. Screw out the oil dipstick, wipe
it dry, reinsert it and screw in. Then again screw it out and take the oil level reading.
Oil level dipstick:
(1) - (ADD) low oil level
(2) - (FULL) maximum oil level
The oil level must be between the two marks on the dipstick. If it is not, fill up with motor oil so that it
reaches the “FULL” mark. The motor oil type is indicated in the user’s manual of the engine.
The oil level must be checked before every work session.
3.4.2 CHECKING THE BATTERY
Check the battery charge level according to the user’s manual of the battery.

20
3.4.3 FILLING THE FUEL TANK WITH FUEL
For safety reasons the riding mower is transported without fuel and before the first start up it is
necessary to fill it up. The fuel tank is located at the rear of the machine and has a capacity of 12 l of
fuel.
Use only petrol with the octane number specified in the user‘s manual of the engine, i.e.
lead-free petrol NATURAL 95. Defects caused by the use of incorrect fuel are not covered
by the warranty!
Only fill the fuel tank with the engine turned off and when the engine is cold. Fill up the fuel
tank in a well ventilated location.
When handling fuel, do not eat, smoke or use an open flame.
For filling use a funnel designed for refilling fuel.
Ensure that fuel is not spilled when refilling. Spilled fuel can very easily catch on fire. If fuel
does spill, thoroughly wipe dry.
Store fuels out of the reach of children.
Procedure for filling up:
Open the fuel tank cap. Open it slowly because there may be overpressure
in the fuel tank caused by petrol vapours.
Insert a funnel into the fuel tank opening and start to pour the fuel from
the canister.
After filling up the fuel tank always wipe dry the area around the fuel tank
opening as well as the fuel tank opening itself. It is good to check the
condition of the fuel lines.
3.4.4 CHECKING THE AIR PRESSURE IN THE TYRES
Before putting the machine into operation, check the air pressure in the
tyres.
The air pressure in the front tyres must be 150 kPa.
The air pressure in the rear tyres must be 80 kPa.
The difference between the individual tyres may be ± 10 KPa.
150 kPa
80 kPa
Do not exceed the maximum pressure marked on the tyres that
are being used.
3.4.5 CHECKING THE OIL LEVEL IN THE HYDRAULIC CIRCUIT (APPLIES TO MODEL
AC 92-23 4X4)
The machine is supplied with a bled hydraulic circuit and with an equalisation tank with the prescribed
amount of oil. The oil level in the tank may decline during transport.
The equalisation tank is located in the rear part of the machine under the engine cover.
Check that the oil level is between the two marks on the dipstick of the closing cap, if necessary fill up
with the necessary amount of the prescribed oil.
Wipe clean the area around the tank opening and the tank opening itself. Also regularly clean the
entire tank, because any dirt in the oil reduces the lifespan of the oil filter and may possibly cause a
malfunction.
The system is fully bled during the first couple of hours of driving the machine – we recommend that
you “run the machine in” with a mild load for 1 to 2 hours.