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AS-751 RC SAFETY SYSTEM 

 
The AS-751 RC flail mower is remotely controlled. This means that the operator will at times 
be away from the machine. In order to increase the safety for the operator and other persons, the 
machine is provided with a safety system, which can be activated both manually and 
automatically.   
 
 

 
 
If the emergency stop is activated automatically, or if the emergency stop of the remote control 
is activated, the following happens: 
  

-

 

The motor stops.  

-

 

The forward drive is put neutral.  

-

 

The coupling of the mower remains engaged, until the motor stands 
still. 
 

When the emergency stop of the machine is activated, the power to all electric components will 
be cut and cause the machine to stop. 
 

If the mower gets out of reach of the radio signal  Emergency stop is activated automatically 
If the radio signal is disturbed  

Emergency stop is activated automatically 

Another machine is using the same radio 
frequency  

Emergency stop is automatically engaged  

If dangerous situations occur  

Activate the emergency stop at the machine  

  

Activate the emergency stop of the remote 
control 

Flail mower is lifted into service position 

Safety precautions will prevent the 

Radio link between receiver and sender is not 
established 

motor from starting 

Defective fuses 

 

Emergency stop activated on remote control or 
machine 

 

Summary of Contents for AS-751 RC

Page 1: ...Page 1 49 OPERATOR S MANUAL SERVICE BOOK AS 751 RC Applies to model AS 751 RC with type serial number 028617 ...

Page 2: ... CONTROL BOXES 18 8 2 REMOTE CONTROL NBB 19 9 AS 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 BEFOR...

Page 3: ...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 ...

Page 4: ...anual 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 ...

Page 5: ...rough 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 ...

Page 6: ...ntil 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 n...

Page 7: ...d 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 giv...

Page 8: ...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 c...

Page 9: ...tive 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 contr...

Page 10: ... 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 E...

Page 11: ...e 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 nati...

Page 12: ...icating 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 ...

Page 13: ...e 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 6 CONSTRUCTION OF THE MACHINE ...

Page 14: ...rned 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 ...

Page 15: ...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 wit...

Page 16: ...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 th...

Page 17: ...ous 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...

Page 18: ...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 T...

Page 19: ...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 thi...

Page 20: ...r 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 ...

Page 21: ...tor stands still When the emergency stop of the machine is activated the power to all electric components will be cut and cause the machine to stop If the mower gets out of reach of the radio signal Emergency stop is activated automatically If the radio signal is disturbed Emergency stop is activated automatically Another machine is using the same radio frequency Emergency stop is automatically en...

Page 22: ...measure the oil level accurately if the motor is leaning Check the oil level in the motor before it is started or more than five minutes after it is stopped The location of the oil gauge dipstick is shown in the picture It is important that the oil level is always on maximum level because otherwise there is a danger that the motor will lack oil when driving is carried out on slopes Important Check...

Page 23: ... level surface It is important that the motor is stopped when the oil level is checked The hydraulic oil must always stand to the dent in the oil gauge dipstick Top up with oil if the level is too low Make sure that no water or dirt gets into the oil Always clean the area around the oil gauge before it is unscrewed Pour the oil slowly and carefully Remove any spilt oil immediately The hydraulic oi...

Page 24: ...lter 5 Inspect both filters E and D and replace if they are damaged 6 Clean both filters if they are to be used again The filters must always be changed as stated in the service manual Clean the paper filter through striking it lightly with a hard object so that dirt falls out of the element or through blowing compressed air of maximum 30 psi through the filter element from the inside out Never tr...

Page 25: ... however some evaporation can take place and the battery should then be replenished with distilled water When work is carried out on the battery the main switch emergency stop must always be engaged and locked Never disconnect the cables from the battery when the motor is running It might damage the generator if they are Only use a 12 volt battery for starting aid The machine s battery can be rech...

Page 26: ...ntilated area and with the engine stopped If the motor has been running it is important to let it cool off before fuel filling Warning Petrol is very flammable and explosive be ware of the risk of getting burnt or serious injured Open fire during filling is strictly prohibited It is important not to spill any fuel during filling because the painting and certain types of plastic can be damaged A ho...

Page 27: ...r an optimum output and lifetime of the machine The following precautions should therefore be taken Running in period Change motor oil and hydraulic oil filter after the first 20 hours of operation 11 2 Controls to be carried out before start 1 Check if there is enough petrol in the fuel tank octane 86 or higher 2 Check the hydraulic oil level must stand to the mark at the oil gauge dipstick 3 Che...

Page 28: ... minimum 2 min This particularly applies in very cold weather Important The motor must never run more than 5 sec from the self starter because it will heat and can then be damaged Before a new attempt to start the motor again at least 10 sec have to pass Warning Keep a distance to the machine when it is started Emergency stop main switch Ignition lamp 1 Turn the emergency stop main switch A small ...

Page 29: ... will start beeping after 10 sec The machine begins to beep to remind the operator that he should remove the ignition of the machine and as a safety precaution to prevent unauthorized persons from starting the machine If the motor has been working under heavy strain it is important to let the motor run idle for 2 min before stopping it Warning Stop the motor immediately 1 if the motor revolutions ...

Page 30: ...s could damage the coupling Always connect the mower on an area with short grass and then drive it to the higher vegetation Warning Keep a good safety distance to the machine when the mower is started Never start the mower if there are other persons around Respect the safety distance of 15 m from the mower The mower can throw fragments out in front of it Before starting the mover set the engenine ...

Page 31: ...t once if they get damaged because otherwise there is an increased risk of fragments being thrown out in front of the mower On the left side of the mower there is a sticker indicating cutting heights on a scale between 1 and 7 The table shows the cutting heights for Y flails and playing field flails respectively It is a precondition that the mower is standing on a hard flat and even surface when t...

Page 32: ...er than maximum speed From 0 60 the tracks will run in opposite directions when joystick 2 is activated 100 From 60 to 100 one track will stop on full activation with joystick 2 Should the machine turn somewhat to the right or left during the operation this can be adjusted though turning the trimming button 4 Turn the button counter clockwise if the machine runs towards the right side The position...

Page 33: ...Repeat this in steps until the left belt is standing still Then press button 4 and the setting is saved 4 For adjusting the right track move joystick 2 to the right and then release it 5 Then joystick 3 is activated in steps Move the joystick from position 0 and all the way forward if the track is reversing and then release it If the track is running forward the joystick should be moved back Repea...

Page 34: ... and trim the straight running with the trim bottom so the machine runs straight 3 Release the Joystik push the PR bottom for 3 sec and PR lights in the display 4 Hold joystick 1 backwards and while keeping it backwards turn the trim bottom to zero position 5 Release joystick 1 and push button S4 and button S5 for accepting the change 6 Push the emergency bottom turning the machine off The machine...

Page 35: ...e to tow the machine if the machine s hydraulics should fail to work or if the motor cannot start Then the guard above the pump is to be dismounted and the two towing bolts are each turned twice with a single end wrench The machine can then be pushed by hand After the towing tighten the towing bolts again with 14Nm Towing screw right pump Towing screw left pump Please note There are two bolts in t...

Page 36: ...urposes 1 Protection of the motor The motor is approved and tested for driving on slopes of maximum 58 degrees If the motor runs at an inclination above 58 degrees the motor will loose its lubrication capacity and break down 2 Protection of the machine against tipping over The sensor functions through a pendulum that is activating a contact When the contact has been active for more than 1 sec the ...

Page 37: ...A S recommends special grease from Statoil Greaseway CaH 92 intended for slide bearings Bushings To be lubricated every 20 operating hours Under the machine front right side 3 pcs Under the machine front left side 3 pcs Behind the machine under the triangle 1 pce Pendulum Contact ...

Page 38: ...d left side respectively Ball bearings A S recommends the use of grease from Statoil Uniway LI 62 intended for ball bearings Bearings in the mower Lubricate every 8 operating hours Flanged bearings in driving shaft Lubricate every 8 operating hours ...

Page 39: ...y the arrow and tilt the branch guard to the back 2 Dismount the guard over the hydraulic oil tank 3 Change the oil filter Remember to lubricate the seal with oil before the new filter is mounted 4 Loosen the plug and drain the oil out Tighten the plug again after draining 5 Refill with approx 6 litres of 10W40 oil Start the machine and let it run for approx 2 min then top up with oil 1 2 3 4 5 ...

Page 40: ...fore measuring takes place 2 The tension tester is placed on top of the belt and between the pulleys The pointer is pressed down into the scale 3 The tension tester must only be used with one finger 4 Activate the tension tester with a slowly increasing pressure until a click is heard felt Stop pressing at once 5 Remove the tension tester from the belt and the tension can be read at the intersecti...

Page 41: ...pling If it isn t adjust with the nuts Then check the belt tension 5 Retighten the motor bolts and the lock nuts Tightening of belt between motor and hydraulic pump Tightening of the belt is carried out the following way 1 Slacken the two bolts that are holding the pump 2 Slacken the lock nut on the adjusting bolt 3 Adjust the nut on the adjusting bolt until the correct belt tension is obtained 4 ...

Page 42: ...each side 2 Slacken the lock nuts on the adjusting bolts 3 Adjust the nut on the adjusting bolt until the correct belt tension is obtained 4 Check with a guide rail if the pulley of the mower is parallel with the coupling Adjust with the nuts if it isn t Then check the belt tension 5 Retighten the bolts and lock nuts for the mower Adjusting bolt Bolts for mower Guide rail ...

Page 43: ...igns of wearing When flails are replaced always also replace the suspension bolts and the lock nuts for the shackles The picture shows a new and a worn playfield flail During replacement always also check the shackle Replace bolts and lock nuts Always replace the flails before they are too worn New flails give the nicest mowing result Adjust the mower s height after the conditions and never allow ...

Page 44: ...s carried out with a measuring tape placed at the middle carrying roller where the value 210 mm is read Then press on top of the track right above the middle track roller and read the value on the measuring tape With a correctly tightened track the value is then 180mm Adjust as follows if the track is too slack 1 Slacken the lock nuts 2 Slacken the rear locking bolt 3 Screw the adjusting screw in ...

Page 45: ...r the tracks as optional equipment The spikes are mounted between every four track pattern as shown in the picture Push the fitting in from both sides of the track and tighten the bolt One spike kit includes 14 inner spikes with fittings 14 outer spikes with fittings 14 pcs M10x25 bolts 28 pcs M10 discs 14 pcs M10 lock nuts ...

Page 46: ...ng the day is important Important The machine must not be cleaned with high pressure because then there is a great risk of damaging the bearings and the electric components 12 9 Torque moments A correct tightening of the bolts and screws of the machine is important in order to prevent that its vibrations slacken them Please see the below table Bolt type 8 8 qual M3 M4 M5 M6 M8 M10 M12 M16 M20 Mome...

Page 47: ...amaged p 39 Replace belt Mower vibrates Defective bearings Replace bearings in mower Dirt on flail bar Clean flail bar Flail missing p 42 Mount new flail Worn flail p 42 Mount new flails Machine has not enough Damaged hydraulic pump Replace pump pulling power Drive belt is slack p 42 Tighten belt Hydraulic motor defective Replace hydraulic motor Oil is overheated p 45 Clean cooler rear grate and g...

Page 48: ...1 Any parts which turn out to be unfit for use or are found to have considerably reduced performance due to circumstances before the handover in particular poor quality of manufacture or material will be repaired or exchanged free of charge at the option and reasonable estimation of the supplier The supplier is to be informed immediately in writing when such defects are observed Exchanged parts be...

Page 49: ...ay have to make available Other costs are the responsibility of the customer Claim reports that are incorrectly completed will not be processed Repairs are to be carried out immediately and not later than 14 days from the date of the damage Claim reports not received by the importer eight days after the execution of the repair at the latest will not be approved Claim parts returned on the request ...

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