AS MOTOR AS-751 RC User manual

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OPERATOR’S MANUAL
SERVICE BOOK
AS-751 RC
Applies to model AS-751 RC with type/serial number: 028617……

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1INTRODUCTION................................................................................................................. 4
1.1 IMPORTANT .................................................................................................................... 4
1.2 INCORRECT USE .............................................................................................................. 4
1.3 IDENTIFICATION OF THE MACHINE .................................................................................. 5
1.4 ORDERING SPARE PARTS:................................................................................................ 5
2SAFETY REGULATIONS................................................................................................... 6
3SAFETY PRECAUTIONS DURING MAINTENANCE AND ADJUSTMENTS ............. 8
4SPECIFICATIONS ............................................................................................................. 10
4.1 SPECIFICATIONS............................................................................................................ 10
4.2 NOISE TEST................................................................................................................... 10
4.3 EU DECLARATION OF CONFORMITY............................................................................. 11
5EXPLANATIONS FOR THE WARNING SIGNS ON THE MACHINE......................... 12
6CONSTRUCTION OF THE MACHINE............................................................................ 13
6.1 MOWER ........................................................................................................................ 14
6.2 TRACKS ........................................................................................................................ 15
6.3 MOTOR AND HYDRAULICS ............................................................................................ 15
7RECOMMENDED OPERATING INSTRUCTIONS ........................................................ 16
8STEERING.......................................................................................................................... 18
8.1 CONTROL BOXES .......................................................................................................... 18
8.2 REMOTE CONTROL NBB............................................................................................... 19
9AS-751 RC SAFETY SYSTEM ......................................................................................... 21
10 PREPARING THE MACHINE .......................................................................................... 22
10.1 DELIVERY OF THE MACHINE TO THE DEALER ................................................................ 22
10.2 CONTROL OF MOTOR OIL LEVEL.................................................................................... 22
10.3 CONTROL OF HYDRAULIC OIL LEVEL ............................................................................ 23
10.4 CONTROL OF AIR FILTER ............................................................................................... 24
10.5 PREPARATION OF THE BATTERY.................................................................................... 25
10.6 FUEL TANK ................................................................................................................... 26
11 OPERATION OF THE MACHINE.................................................................................... 27
11.1 USING A NEW MACHINE ................................................................................................ 27
11.2 CONTROLS TO BE CARRIED OUT BEFORE START ............................................................ 27
11.3 START OF THE MACHINE. .............................................................................................. 28
11.4 STOP OF THE MACHINE.................................................................................................. 29
11.5 START/STOP OF MOWER ................................................................................................ 30
11.6 MOWING HEIGHT .......................................................................................................... 31
11.7 OPERATING THE MACHINE ............................................................................................ 32
11.8 PROGRAMMING OF POSITION 0...................................................................................... 33
11.9 CHANGE OF FREQUENCY............................................................................................... 33
11.10 TEACHMODE STRAIGHT DRIVING. ............................................................................. 34
11.11 FACTORY SETTINGS.................................................................................................. 34
11.12 TRANSPORT OF THE MACHINE................................................................................... 35

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11.13 TOWING OF THE MACHINE ........................................................................................ 35
11.14 LIFTING OF THE MACHINE......................................................................................... 36
11.15 DESCRIPTION OF TILT SENSOR................................................................................... 36
12 SERVICE AND MAINTENANCE .................................................................................... 37
12.1 LUBRICATION OF THE MACHINE.................................................................................... 37
12.2 CHANGE OF TRANSMISSION OIL AND FILTER ................................................................. 39
12.3 CHANGE OF MOTOR OIL ................................................................................................ 40
12.4 TIGHTENING AND MAINTENANCE OF DRIVE BELTS........................................................ 40
12.5 CHANGE OF FLAILS ....................................................................................................... 43
12.6 TIGHTENING OF THE TRACKS ........................................................................................ 44
12.7 MOUNTING OF SPIKES................................................................................................... 45
12.8 CLEANING OF THE MACHINE......................................................................................... 46
12.9 TORQUE MOMENTS ....................................................................................................... 46
13 FAULT LOCALISATION.................................................................................................. 47
14 MAINTENANCE AFTER THE SEASON......................................................................... 48
15 GUARANTEE STIPULATIONS FOR THE AS-751 RC.................................................. 48

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Congratulations on your new AS-751 RC
This manual is prepared in order to help you with the correct use, adjustments and maintenance
of your new machine.
Please read this manual carefully before any attempt is made to run or work with this machine –
in particular the sections regarding safety.
The indications right and left in the manual and in spare parts lists are the machine seen from
behind in the driving direction.
1INTRODUCTION
1.1 Important
The AS-751 RC is a remotely controlled flail mower. The life of the equipment depends on how
maintenance and services are carried out.
The operator’s manual supplied with the machine must always be available for the operator.
Before any attempt is made to run or work with the machine, the manual must be studied
carefully, in particular those sections dealing with safety stipulations (sections 2 and 3).
Only persons above 18 years of age who are acquainted with the safety stipulations for the
machine are allowed to operate the machine.
In case your manual gets damaged or is lost, please request a new manual at your local dealer.
The manufacturer’s responsibility for possible losses or damages will be cancelled, if any
constructional changes are made to the machine.
The machine is designed for cutting grass, low vegetation and one year old bushes on level
grounds as well as on inclinations sloping maximum 58 degrees. For inclinations sloping more
than 25 degrees it is a precondition that the surface is dry.
1.2 Incorrect use
The machine must not be used on surfaces, where glass, stones, metal pieces, or other foreign
bodies might appear. Such objects can be thrown out or cause damages to the mower. Do not
use the machine unless you are acquainted with the terrain and especially the whereabouts of
unwanted stubs, water holes, swamps or soil with a poor bearing.
The machine must not be used on inclinations over 25 degrees when it is raining or misty or if
the surface is wet.
Do not use the machine for vegetations that are more than 1 year old. If you do, the plants can
damage the machine. It is important to keep a safety distance of minimum 15 m to all persons
and animals.
The machine must not be used for pulling purposes or for transportation of people. It is not
allowed to use the machine on public roads. It is not allowed to modify the construction of the

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machine. The manufacturer is not responsible for any loss or damages whatsoever resulting
from such changes.
1.3 Identification of the machine
Manufacturer: Timan A/S
Fabriksvej 13
DK-6980 Tim, Denmark
Model: AS-751 RC
Identification number: type –serial –machine number
Example: 410040 –00 –1001 or 028617…..
1.4 Ordering spare parts:
Your dealer is of course interested in helping you with the maintenance of your machine and
will be glad to assist you in getting the greatest benefit out of it. After you have read this manual
carefully through, you will find that you can carry some of the servicing out yourself. But when
spare parts or more comprehensive service work are needed, you should turn to your dealer,
where you have bought the machine, or to a local, authorized service workshop.
In order to expedite the delivery of spare parts and to avoid mistakes please submit the
following information:
The identification number of the machine: ________________________________
The number and units required of the spare part
Dispatch mode
The machine sign is placed behind the black control box in the left side of the machine.
Look for the identification number and write it on the line above and also on the front page of
the catalogue.
Location of the machine sign at the AS-751 RC

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2SAFETY REGULATIONS
WHENEVER YOU SEE THIS SIGN IN THIS BOOK YOUR SAFETY IS
CONCERNED!
It is the responsibility of the user that the guards are mounted and the available safety equipment
and all safety regulations are employed and observed.
Careful operation is the best guarantee against accidents. Please read this chapter thoroughly
through, before taking the machine in use. All operators, irrespective of their experience, must
read this manual before they use the machine. It is the responsibility of the owner to inform all
operators about secure handling.
Only persons above 18 years of age, who have acquainted themselves with the machine and the
manual, are allowed to operate the machine. The remote control is regarded as a part of the
machine.
The safety regulations are for your safety - therefore PLEASE REMEMBER:
1. Inform everyone, who is to work with or near the machine, about the safety regulations.
2. Do not start the machine until everyone is aware of your intention.
3. Never start the machine until all safety guards have been mounted and closed. Replace or
repair missing or damaged guards immediately.
4. Make sure that everyone near the machine keeps a distance of minimum 15 m to the
machine, when the machine is started and is working.
5. Stop the motor with the remote control and wait until the machine is completely statio-
nary. Engage the emergency stop contact of the machine and remove the key from the
emergency stop contact before cleaning, lubrication, adjustment or repair of the machine.
6. No persons, including operators, are allowed to sit on the machine as passengers.
7. Never leave the machine without stopping the motor and engaging the emergency stop of
the machine and removing the key, so the machine cannot be started by accident.
8. Always wear a face shield when work is carried out with the machine.
9. Keep the machine free of objects, which may block its functions.
10. Never wear loose clothing while working with the machine and keep a safe distance from
rotating parts.
11. Be ware of warm surfaces and exhaust gases; they could pose risks of getting burnt.

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12. Keep your hands away from the working parts of the machine.
13. Keep the motor area free of dust and dirt in order to reduce the risk of fire.
14. Always have the machine within your range of vision and be ready to react if there are
holes or irregularities in the terrain.
15. Always handle the remote control with due care. The operator must therefore always
stand on even ground and have a good view of the machine.
16. Never let open fire come near the petrol and oil tanks during filling.
17. Never let the motor run in closed rooms. The exhaust gases are dangerous and potentially
fatal.
18. Never let the machine run in places where it could skid or tip over. Let it run slowly on
slopes. Special care must be taken when it runs on wet surfaces.
19. Never use the machine when you are under the influence of alcohol, medicine or similar
drugs, or if you are tired.
20. Always remove the area to be mowed from all foreign objects, such as stones, cones,
sticks, glass or wires and other objects, which might get caught and thrown out by the
flails or can damage the machine.
21. When operating the machine for the first time this should take place on a flat and even
surface. The operator must wait to run the machine on slopes or hilly terrain until he is
well acquainted with its functions.
22. Do not run close to waterholes, holes, dams or other places in the terrain, which might
give in to the machine’s weight. There is an increased risk of tipping over, when the
ground is loose or moist.
23. Do not use the machine if there is less than 30% fuel in the fuel tank because of the risk of
running dry.
24. Do not use the mower when the visibility is diminished (twilight, fog, heavy rain etc.)
Never run the machine behind obstacles like for instance house corners, behind trees or
bushes, in vegetation hiding the machine. Keep a good look out where the machine runs.
25. Please note that if you run the machine below overhead lines, the radio signal might get
lost. The machine will then stop the motor and all its movements.
26. In windy weather the operator should choose a place to stand away from the stream of
exhaust gases, dust and cut-off grass coming from the machine.

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27. Fuel filling must always take place with the motor stopped. Do not start the motor, if fuel
has been spilt. If it is necessary to tank up during work, wait until the motor has cooled
down.
28. Always stop the motor before you leave the machine. This is done through engaging the
red emergency stop button at the control panel and removing the key. Never leave the
sender on the machine, keep it in a safe place and away from other persons.
3SAFETY PRECAUTIONS DURING MAINTENANCE AND ADJUSTMENTS
1. Before attempting to carry out any kind of adjustment or maintenance on the machine, the
motor must be stopped. Engage the emergency stop button of the machine and remove the
key from the emergency stop button (to prevent unauthorized persons from starting the
motor.)
2. Make sure that all parts of the machine are stationary before carrying out maintenance or
adjustments.
3. Hydraulic system:
a. Only persons who are familiar with hydraulic systems (including the risk on contact
with hydraulic fluid, especially under pressure) are allowed to carry out repair and
maintenance of the hydraulic system of the machine.
b. The excess-pressure valves are set by the factory must not be adjusted without
previous agreement with the dealer, importer or service department at A/S.
c. Claims for damages after incorrect use or maintenance/repair will not be accepted.
d. Check the proper condition of the hoses before every use (if frayed, worn, twisted
etc.) and replace any damaged part immediately.
NB: Never attempt to find leaks in the hydraulic system with your hands –hydraulic
fluid under high pressure coming from minor leaks can be invisible, and such a fine
oil jet under high pressure can damage your hand; instead a piece of wood, carton or
the like should be used.
4. Batteries:
The batteries contain a sulphuric acid electrolyte, which can cause serious burns and
produce explosive gases. Avoid getting this liquid on your skin, into your eyes or on your
clothing. Do not swallow the liquid. The necessary measures mentioned below must be
observed:
a. Never be near open fire when checking the level of the electrolyte. Keep sparks,
flames and lit cigarettes away.

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b. Be careful not to produce sparks with the cable terminal, when charging the battery
or starting the engine with an auxiliary battery.
c. Protect your eyes, when working near the batteries.
d. Provide for good ventilation during charging or work in closed rooms.
Should you by accident get electrolyte on your skin, into your eyes or you swallow it, you
must start the following treatment:
Skin: Wash with cold water.
Eyes: Wash with cold water and consult medical aid immediately.
Internal: Consult medical aid immediately.
5. During welding at the AS-751 RC:
Always remove the positive from the battery of the machine and engage the emergency
stop button of the machine and remove the key from the emergency stop button.
6. Always replace any safety guard, which has been removed to make an adjustment or to
carry out routine maintenance. Always ensure that all nuts, bolts, screws, etc. are correctly
tightened after making adjustments. Please see the section 'Torque Moment'. The first
control is to be carried out after 8 hours’ of operation. Account for all tools before
replacing guards or before starting the machine.
7. Make sure that all persons are clear of machinery and visible to the operator before
starting the machine.
8. Use only original A/S’ spare parts.
9. Stop working and clean the machinery from dust regularly in order to prevent overheating
of the machine.

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4SPECIFICATIONS
4.1 Specifications
Model
AS-751 RC
Motor
Briggs and Stratton
Number of cylinders
1
Cylinder volume
420ccm
HP /kW
13/9,56
Maximum rpm.
3600
Cooling system
Air cooling
Fuel tank
6,5L
Transmission
Double piston pumps Sauer Danfoss
Wheel motors
Orbit motor Sauer Danfoss
Speed
0-6 km/h
Electric system
12 volt
Flails
32 stk. L-flails / 32 Y-flails
Coupling
12 V electromagnetic
Dimensions and weight:
Length
1877 mm
Width
865 mm
Height
600 mm
Turning radius
0
Overall weight
345 kg
Noise level
107 dB(A)
4.2 Noise test
To AS-751 RC is made a noise measurement. This measurement is diminished outdoors on a
level with the lawn mower activated and the engine operating at maximum revolutions.
Measurements are made according to DS / EN 10094
Noise level is measured to LwA = 107 dB with a measurement accuracy of + / - 2 dB
Noise level 15 m from the machines are intended to LA15m = 75.2 dB

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4.3 EU Declaration of Conformity
EU Declaration of Conformity
2006/42/EU App. II A
Manufacturer:
Name
Timan A/S
Address
Fabriksvej 13
Postal code and town
DK-6980 Tim
Technical dossier compiled by (authorized by the manufacturer):
Name
Henning Pedersen
Address
Fabriksvej 13
Postal code and town
DK-6980 Tim
hereby declare that the machine model:
-AS-751 RC with the type number 410040 and 410080
was manufactured in conformity with the provisions in the following EU COUNCIL
DIRECTIVES:
-2006/42/EC Machine Directive
-2006/95/EC Low-voltage Directive
-2004/108/EC EMC Directive
-1999/5/EC R & TTE Directive
under the employment of the following harmonizing standards:
-DS/EN 745 –1999 Safety Flail Mower
and the below mentioned national standards and technical specifications:
Signer:
Position:
Place:
Date:
Henning Pedersen
Technical Manager
Tim
1/1/2018
Signature

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5EXPLANATIONS FOR THE WARNING SIGNS ON THE MACHINE
Every measure is taken during the development of the machine in order to secure the
operator against all safety risks. In special operating situations the machine can nevertheless
pose a risk. The machine is therefore provided with warning signs in order to reduce the
risks and it is important to pay attention to the potential risks indicated by the warning signs.
Please read the explanations for the symbols carefully and learn what they are indicating.
Keep the warning signs clean and replace them immediately, if the get damaged or lost.
a. b. c. d. e. f.
g. h. i. j
a. WARNING: Read the manual carefully before utilizing the machine.
b. WARNING: Before service is carried out on the machine you must stop the
machine, engage the emergency stop button, and remove the key from the
contact. Follow the instructions given in the manual.
c. WARNING: It is not allowed to have passengers or to sit on the machine, when
it is running
d. WARNING: A 15 m safety distance must be kept to the operator and to other
persons and animals. There is a danger of getting hit by thrown-out fragments.
e. WARNING: Rotating vertical flail bar. Keep hands and feet at a safe distance –
then can be damaged.

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f. WARNING: The operator must always be on the side of the machine, never in
front of it. If he does, fragments thrown out by the mower can hit him.
When driving on slopes, the operator must not be downhill where the machine
could hit him, if it turns over.
g. WARNING: Never drive on slopes that are steeper then 58 deg. If you do, the
motor will not be sufficiently lubricated and get damaged. The machine is also at
great risk of turning over.
h. WARNING: Always use a face shield to protect your face against thrown-out
particles.
i. WARNING: Danger of trapping hands or feet. Do not put your hands or feet
into the tracks.
j. WARNING: Mower weighs 50kg. when it is raised into service position must it
always be done by 2 persons.
6CONSTRUCTION OF THE MACHINE
The flail mower is designed as a remotely controlled self-propelled unit.
The main parts of the machine are:
1. Mower
2. Tracks
3. Motor and hydraulics
1) 2) 3)

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6.1 Mower
At the front of the machine the flail mower is fitted. It is powered by the Honda motor through
belts.
The mower is mounted to the chassis on arms such that the mower can move up and down
independent of the chassis of the machine. When the mower is in working position, two
supporting arms lock the vertical movement of the mower and prevent it from exceeding 15
degrees. The supporting arms are spring suspended in order to shift some of the mower’s
weight to the chassis. This reduces the friction between the mower and the ground, when the
machine is turned.
Supporting arms Lever for lifting the mower Mower in service position
The mower is raised, when flails need to be replaced
or for carrying out service of the mower. To raise the
mower, move the lever forwards and then lift it off
the supporting arms. In the top position a holding
mechanism will lock the arms of the mower in its
service position. To return the mower into its
working position again, raise the mower slightly and
at the same time push the lever forwards. This will
disengage the holding mechanism, and the mower
can be lowered.
The machine is mounted with a safety sensor that prevents the mower from being started, when
it is in service position.
The mower weighs 50 kg. Two persons should
always carry out lifting and lowering the mower.
Safety sensor
Forwards

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6.2 Tracks
The chassis of the machine is provided with two
hydraulically powered tracks.
The tracks are suspended at the front of the chassis and
connected through a triangle with its turning point
about the centre of the chassis at the rear end of the
machine.
The tracks can move independently of one another, and
thereby 100% ground contact of the machine is always
ensured, even when driving on uneven ground.
When driving in hilly terrain where the soil is loose,
rubber spikes can be obtained for the tracks as optional
equipment. Thereby the grip of the tracks on slopes will
be increased. Look at chapter 11.2
6.3 Motor and hydraulics
The machine is equipped with a 13 hp air-cooled Briggs and Stratton, which powers the
hydraulic pump and the flail mower through a belt drive. In the driving line between mower and
motor there is an electromagnetic coupling with springs that automatically disconnect the
mower, if the current disappears. The coupling is engaged and disengaged with the remote
control.
At the rear end of the machine a suction box is mounted, through which the motor sucks its
cooling air.
The hydraulic pump is provided with a fan blade that directs cold air around the pump housing
to prevent excessive heating of the hydraulics. A hydraulic oil cooler is also mounted in the
suction box.
The speed and direction of the machine is regulated by the quantity of oil that each of the
hydraulic motors for the tracks gets from the pump. The oil quantity given by the pump to each
of the two hydraulic motors is decided by two servomotors, which are connected to the speed
control alarm of the pump. These servomotors are controlled with the remote control.
Triangle
Turning point

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7RECOMMENDED OPERATING INSTRUCTIONS
The diagrams below show the basic grass cutting methods in different types of terrain. The
operator must, however, each time assess these methods.
During different terrain and weather conditions another method might be better to use than these
suggestions. It is the responsibility of the operator to choose the most suitable method. In any
case it is absolutely necessary to keep all safety regulations stipulated in this manual.
The operator must
never be in front of the
flail mower when it is
running. There he it at
risk of getting hit by
thrown-out fragments.
The operator must
never be downhill in
relation to the mower
unless a safety dist-
ance of minimum 12
m is kept from where
the inclinations starts.
The operator could be
hit by the machine, if
it turns over.
For the operation on
slopes with inclinations
between 0 and 35 degrees
crosswise driving is
recommended. At the
ends the machine is
turned 180 degrees to the
driving direction. The
operator must stand as
shown in the drawing.

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When driving on inclinations between 35 and 58 degrees it is recommended to drive crosswise
on slopes.
At the ends the front of the machine is turned toward the hill and at the same run forward and
then reversed straight back. Then it is moved forward again to complete the turning.
The operator must stand in one of the positions shown in the above drawing.
It is important that the operator is concentrated and cautious to possible dangers or changes in
the terrain when mowing with the machine on slopes. Experiences have shown that it is
important to:
-avoid sudden accelerations, quick turnings and hard breakings;
-drive at a slow speed, i.e. below 50 % at the remote control;
-avoid driving in cut-off material, because there the machine can skid;
-be cautious when driving from sunlit to shaded areas, because the
ground might be damp there;
-avoid holes and loose ground.
If the operator needs to stop the machine on a slope, the machine must always be placed with
the tracks crosshwise on the hill. This will prevent the machine from moving down the slope.

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8STEERING
8.1 Control boxes
The AS-751 RC is equipped with two control boxes.
Important: The boxes must in no circumstances be washed. If the boxes get damaged, all parts
involved must be replaced at once.
The box in the left side of the machine is the NBB control box. With this box the machine’s
coupling, two servo-motors of the hydraulic pump’s speed control arms, tilt sensor, revolutions
of the Honda motor, start and stop of the Honda motor and the horn are steered. The box is
maintenance free and must not be opened without previous agreement with A/S.
The box in the right side of the machine is the Timan control box. This box contains emergency
stop, hour counter, fuses and relays, ignition light and current for the NBB control box.
Look in app. 1
IMPORTANT! Never replace fuses with fuses of a higher amp value. Always investigate the
cause and rectify the problem, before a new fuse is inserted. The top fuse is F1, the lowest is F4.
F1 Steering box (10 A)
F2 NBB steering (15 A)
F3 Charge plug (7,5 A)
K2
K4
K1
Relays:
K1: Relay for bonding strip 12V 70 amps
K2: Relay for fuel ignition (IGN) / fuel spool (Fs coil)
K4: Relay for hour counter and charge light
Control box in the left side
Control box in the right side

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8.2 Remote control NBB
Before the machine is started, it is important that the operator has acquainted himself thoroughly
in the steering of the machine with the remote control.
The functions are described in detail in section 11.
a) Proportional joystick for driving forward/reversing.
b) Proportional joystick for turning right/left.
c) Turning potentiometer for selection of maximum speed.
d) Emergency stop. This button stops the motor and puts the forward drive neutral. The
contact is activated through turning the button clockwise so it jumps out.
e) Diode field. During normal operation a blinking dot appears. If a blinking L shows up,
the batteries in the remote control are close to being empty and need to be replaced.
Please see below.
f) Horn.
g) Start: the motor starts when this button is activated.
h) Start of mower.
i) Stop of mower.
j) Start flash light
k) Button for programming.
l) Stop flash light
m) Trimming button.
n) Frequency button.
a)
c)
d)
f)
b)
i)
j)
k)
l)
m)
e)
g)
h)
n)

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The battery can be replaced after slackening the finger screw and removing the lid in the rear
end of the remote control.
Normal operation –a red blinking light appears.
When a blinking L appears, the batteries are nearly empty –there is approx. 30
minutes of driving time left.
Batteries: Two rechargeable 1,2 V AA NiMH or two 1,5V AA batteries are to be used.
Batteies operation time is between 20-30 hour.