EMAK Riding Mower F72 Operators Manual
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EN 27 HOW TO USE THE MACHINE The circuit automatically resets after a few seconds but the cause of the fault should be ascertained and dealt with to avoid re-activating the protection device. To avoid activating the protection device: –do not reverse the cables on the battery terminals; –do not use the machine without its battery or damage may be caused to the charging regulator; –be careful to not cause short-circuits. E ND OF MOWING When you have finished mowing, disengage the blade and ride the machine with the cut- ting deck in the highest position. Stop the machine, engage the parking brake and turn off the engine by turning the ignition key to «OFF». When the engine is stopped, close the fuel cock (1) (where fitted). To avoid backfire, put the accelerator in the «SLOW» position for 20 seconds before stopping the engine. Always take out the ignition key if leaving the machine unattended! To keep the battery charged, do not leave the key in the «ON» position when the engine is not running. 5.4 CLEANING AND STORAGE C LEANING After each mowing, clean the outside of the machine, empty the grass-catcher and shake it to remove residual grass and earth. Clean the plastic parts of the body with a damp sponge using water and deter- gent, taking care not to wet the engine, the electrical parts or the electronic card located under the dashboard. Never use hose-nozzles or harsh detergents for cleaning the body and engine! IMPORTANT IMPORTANT !WARNING! !WARNING! IMPORTANT 1
WASHING THE INSIDE OF THE CUTTING DECK The machine has to be put on firm ground with the stone-guard or grass-catcher in position. Washing the inside of the cutting deck and the collector channel is done by attaching a water hose to the connector (1) and running water through for a few minutes, with: –the operator seated; –the engine running; –the drive in neutral; –the blade engaged. When washing, the cutting deck should be in the fully lowered position. Take off the grass- catcher, empty and rinse it, and then put it in a position to assist quick drying. S TORAGE AND INACTIVITY FOR LONG PERIODS If the machine is likely to be unused for a long period (more than 1 month), dis- connect the cables from the battery and follow the instructions in the engine manual. Lubricate all joints as directed in chapter 6. Carefully remove any dry grass cuttings which may have collected around the engine or silencer to prevent their catching fire the next time the machine is used! Empty the fuel tank by disconnecting the tube situ- ated at the inlet of the fuel filter (1) and follow the instructions in the engine booklet. The battery must be kept in a cool and dry place. Before a long storage period (more than 1 month), always charge the battery, and then recharge before using again (chapter 6). The next time the machine is used, check that there are no fuel leaks from the tubes, fuel cock or carburettor. IMPORTANT !WARNING! EN 28HOW TO USE THE MACHINE 1 1
6. MAINTENANCE Before cleaning, maintenance or repair work, take out the ignition key and read the relevant instructions. Wear suitable clothing and strong gloves. Never get rid of used oil, fuel or other pollutants in unautho- rised places! A CCESS TO MECHANICAL PARTS Lift the engine cover (1) to access the engine and mechanical parts below it. To do so: –put the machine on level ground, bring the cut- ting deck into the highest position and put blocks (2) of around 65 - 70 mm beneath the edge to hold up the deck during the following stages. For mechanical drive models: –engage the parking brake; For hydrostatic drive models: –put the drive release lever into the «ENGAGED» position (see chap. 4, n° 23), since it is necessary for the parking brake to be disengaged to ensure that the speed change lever has enough movement; –remove the grass-catcher or stone-guard; –unscrew the knob on the lever (3) and put the lever into neutral «N» (For mechanical drive models), or in «R» (For hydrostatic drive models); –open the access hatch (4) and unscrew the nut (5) with a 13 mm spanner; –release the lever (6) so that the deck rests on the blocks and keep the lever ➤ ➤ ➤ ➤ IMPORTANT !WARNING! EN 29 MAINTENANCE 1346 2 10 8 7 5 6
moved sideways so that it is not in any of the notches. Hold the base of the seat (7) and tip the cover back. On closing: –check that the collector channel (8) is properly fit- ted onto its support (9) and resting on the right- hand guide; –put the lever (3) into the «R» position and lower the cover (1) to the height of the levers (3) and (6); –first put the lever (6) into its housing followed by lever (3). Lower the cover in line with the fasten- ing screw. When the cover (1) has been lowered check that: –he channel exit (8) is correctly lined up with the opening in the rear plate (10) and that it is resting on the support (11). Then: –fully tighten the fixing nut (5); –put the lever (6) into the notch at position «7»; –take the blocks (2) away, and reassemble the knob on the lever (3) and the access hatch (4). E NGINE Follow the instructions in the engine booklet. Drain the engine oil by unscrewing the oil fill plug (1) and using the syringe supplied. Fit the pipe (2) onto the syringe (3) and insert it right into the hole. Drain all the engine oil, repeating if nec- essary until there is no oil left in the engine. REAR AXLE These are permanently lubricated with grease that does not need changing. !WARNING! EN 30MAINTENANCE 8 911 10 8 1 2 3
BATTERY To ensure long life to the battery it is essential to keep it carefully maintained. The machine battery must always be charged: –before using the machine for the first time after purchase; –before leaving the machine for a prolonged period of disuse; –before starting up the machine after a prolonged period of disuse. –Carefully read and comply with the procedure for recharging described in the booklet coming with the battery. If the procedure is not followed or the battery is not charged, irreparable damage could be caused to the elements inside the battery. –A flat battery must be recharged as soon as possible. Recharging must be done using a battery charger at con- stant voltage.Other recharging systems can irreversibly damage the battery. The machine has a connector (1) for recharg- ing, to be connected to the corresponding connector of the special “CB01” maintenance battery-charger supplied ( if included)or available on request (chapter 8). This connector must only be used for connection to the “CB01” main- tenance battery-charger. For its use: –follow the instructions given in the relative instruction booklet, –follow the instructions given in the battery booklet. R EPLACING A FUSE The machine is fitted with fuses (1) with differ- ent capacities and functions. Specifically: –10 A fuse = protects the main and power cir- cuits of the electronic board. When it blows, the machine stops and the dashboard light IMPORTANT ➤ IMPORTANT EN 31 MAINTENANCE 1 1
switches off. –25 A fuse = protects the battery charger circuit. When it blows, the battery gradually runs out and the machine will have problems starting. The fuse capacity is indicated on the fuse. A blown fuse must always be replaced by one of the same type and ampere rating, and never one of a different rating. If you cannot find the cause of the protection devices activation, consult a Licensed Service Centre. C HANGING WHEELS Stop the machine on a flat surface and put blocks under a load-bearing part of the frame on the side that the wheel is to be changed. The wheels are held by a snap ring (1) which can be taken off with a screwdriv- er. The rear wheels are directly coupled to the axle shafts and fastened by a key that forms part of the wheels hub. Before re-fitting a wheel, smear some grease on the axle and carefully re-fit the snap ring and washer (2). Should you substitute one or both rear wheels, ensure that they are of the same diameter, and check that cutting deck is horizontal to pre- vent an uneven cut. C HANGING AND REPAIRING TYRES Tyres are of the «Tubeless» type and therefore all puncture repairs will have to be carried out by a tyre-repair expert in accordance with the methods for this kind of tyres. NOTE IMPORTANT EN 32MAINTENANCE 21
CHANGING BELTS The motion from the engine to the rear axle and from the motor to the blade is obtained by two “V” belts, whose duration largely depends on how the machine is used. Replacing belts is quite complicated because of dismantling and adjustments and must only be carried out by a Licensed Service Centre. Belts must always be replaced as soon as they are seen to be worn! ALWAYS USE MANUFACTURER’S GENUINE SPARE BELTS! C UTTING DECK ADJUSTMENT The cutting deck should be properly adjusted to obtain a good cut. Height adjustments to the cutting deck are made through three link- ages. Such adjustments are to be made on a flat surface after having ensured that the tyre pressures are correct. For achieving good results from cutting, the front part should always be 2 - 4 mm lower than the rear. To adjust the cutting deck so that it is parallel with the ground: –put one 26 mm block (1) under the edge of the deck and one 32 mm block (2) under the rear edge, then put the lifting lever into the notch at position «1»; –loosen the nuts (3 - 5 - 7) and the locknuts (4 - 6 - 8) so that the deck is resting firmly on the blocks; –turn the nut (3) until the right-hand rear part of the deck starts to rise, and then tighten the relative locknut (4); NOTE NOTE EN 33 MAINTENANCE 2 3 4 5 8 6 7 1
–screw down the nut (5) on the rod until the right-hand front part of the deck begins to rise, and then tighten the relative locknut (6); –screw the nut (7) on the front left support until the deck in that area begins to rise, and then tighten the nut (8) If you are unable to get the cutting deck parallel, consult a Licensed Service Centre. B RAKE ADJUSTMENT The adjustment will need to be made while the parking brake is engaged. For mechanical drive models: For hydrostatic drive models (Peerless): Loosen the nut (1) which holds on the bracket (2) and turn the nut (3) until the length of the spring (4) is 46 - 48 mm inside the washers. When the adjustment has been made, tighten the nut (1). For hydrostatic drive models (Tuff-Torq): Turn the nut (5) until the length of the spring (6) is 45 - 47 mm inside the washers. Do not screw to below these values to avoid overloading the brake unit. A DJUSTING DRIVE ENGAGEMENT For mechanical drive models: If you should notice that forward drive power has dropped, you can adjust the regulating screw (1) which is accessible through the hatchway beneath the seat. Undoing the screw and then lengthening the spring (2) will increase the drive ability. The best length for the spring is 86 mm mea- sured from the outer ends of the spring. Once the adjustment has been made, tighten the locknuts (3). Excessive spring tension may cause too sudden engagement of the clutch, resulting in the machine tipping up.➤ IMPORTANT ➤ ➤ ➤ EN 34MAINTENANCE 2 86 mm 31 1 2 346 - 48 mm4 45 - 47 mm 65
ADJUSTMENT TO BLADE ENGAGEMENT AND BRAKE If there seem to be problems in engaging the blade or the time for stopping after disen- gagement is over 5 seconds, adjust the spring tension (1). To make this adjustment, loosen the nuts (2) and screw or unscrew them on the control rod (3) in order to obtain a distance of 77-79 mm between the bracket (4) and the inside of the washer (5), with the blade engaged and the cutting height adjustment lever at position “1”. When the adjustment has been made, screw the nuts (2) back on. For hydrostatic drive models: A DJUSTING THE SPEED CHANGE LEVER The speed change lever has a clutch device which keeps it in the position selected during forward movement and which returns the lever to neutral when brake is operated. If the lever does not stay in position during working and has difficulty in returning to neutral, the adjuster nut (1) will need to be registered to restore normal functioning. S HARPENING THE BLADE Check that the blade is sharpened properly and firmly fixed to the bracket. – A badly sharpened blade pulls at the grass and causes the lawn to turn yellow. – A loose blade causes unusual vibrations and can be dangerous. All operations on the blade (dismantling, sharpening, balancing, remounting and/or replacing) require a certain familiarity and special tools. For safety reasons, go to a specialized centre if you do not have the right tools or experience. !WARNING! ➤ EN 35 MAINTENANCE 1 A77 - 79 mm2 345 1
To remove the blade, hold it firmly wearing strong gloves and undo the central screw (1). Sharpen the two cutting edges using a medium grade grinding wheel and check the balance by holding the blade up with a round 18 mm diameter bar inserted in the central hole. To ensure that it works properly without unusual vibrations any imbalance between the two parts of the blade must be below one gram. This can be easily ascertained by putting a one gram weight on the lightest end of the blade. If it tends to go below the bal- anced position it means that the balance is correct, while if it stays up then the other end will have to be made lighter. A damaged or bent blade must always be replaced; never try to repair it! ALWAYS USE MANUFACTURERS GENUINE SPARE BLADES ! When re-fitting the blade, always follow the indicated sequence, making sure that the blade’s wings are facing towards the interior of the cutting deck and that the concave part of the cup spring (1) is pressing against the blade. Tighten the fixing screw (2) using a torque wrench set to 45-50 Nm. If the shaft hub (3) came off when disman- tling the blade, make sure that the key (4) is firmly in its right position. !WARNING! !WARNING! EN 36MAINTENANCE 1 2 1 2 43 Ø 18 mm 1 g 1 g 1 g WRONG! RIGHT! 1