Operator′s manual M48 Pro M53 S Pro Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.
KEY TO SYMBOLS Key to symbols WARNING! The machine can be a dangerous tool if used incorrectly or carelessly, which can cause serious or fatal injury to the operator or others. Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. Switch off the engine by releasing the engine brake handle before carrying out any checks or maintenance. Steps before using a new lawn mower • Please read the operator’s manual carefully.
CONTENTS Contents KEY TO SYMBOLS Key to symbols ............................................................. Steps before using a new lawn mower ........................ CONTENTS Contents ...................................................................... SAFETY INSTRUCTIONS Personal protection ...................................................... Machine′s safety equipment ........................................ Checking, maintaining and servicing the machine′s safety equipment ......................
SAFETY INSTRUCTIONS Personal protection ! Engine brake handle • Vibration damping system • Muffler • Cutting equipment WARNING! You must use personal protection whenever you use the machine. • Hearing protection • Gloves must be worn when required, for example when fitting, inspecting or cleaning cutting attachments • • Always wear heavy, long pants. Do not wear shorts, sandals or go barefoot. Cutting cover and protective cover • Wear sturdy, non-slip boots or shoes.
SAFETY INSTRUCTIONS This model also has a vibration damper fitted on the handlebar unit to further reduce vibrations. The machine′s vibration damping system reduces the transfer of vibration between the engine unit/cutting equipment and the machine′s handle unit. ! WARNING! Overexposure to vibration can lead to circulatory damage or nerve damage in people who have impaired circulation. Contact your doctor if you experience symptoms of overexposure to vibration.
SAFETY INSTRUCTIONS Muffler General safety precautions Never use a machine that has a faulty muffler. • A lawn mower is only designed to mow lawns. The only accessories you can use with this engine unit are the cutters we recommend in the Technical data chapter. • Never use the machine if you are tired, if you have drunk alcohol, or if you are taking medication that could affect your vision, your judgement or your co-ordination. Regularly check that the muffler is securely attached to the machine.
SAFETY INSTRUCTIONS 4 Check that the muffler is securely attached and not damaged. 5 Check that all parts of the lawn mower are tightened correctly and that they are not damaged or missing. 6 Check that the cutter is undamaged and not cracked. Replace the cutter if necessary. 7 Clean the air filter. Replace if necessary. • Move the machine at least 3 m from the refuelling point before starting it.
SAFETY INSTRUCTIONS • Never lift up the lawn mower or carry it around when the engine is running. If you must lift the lawn mower, first switch off the engine and disconnect the ignition lead from the spark plug. • Do not use the machine in bad weather, such as dense fog, heavy rain, strong wind, intense cold, etc. Working in bad weather is tiring and often brings added risks, such as icy ground. • Make sure you can move and stand safely.
SAFETY INSTRUCTIONS Adjusting the cutting height Shut down the engine before changing the cutting height. Set the cutting height using the cutting height control on the right-hand side of the lawn mower.
WHAT IS WHAT? 21 1 19 13 8 18 2 3 5 24 12 4 20 11 15 6 17 7 16 9 22 10 14 What is what on the lawn mower? M53 S Pro 1 Handle / handlebar 2 Engine brake handle 3 Starter handle 4 Clutch lever 5 Throttle control/choke control 6 Air filter 7 Cutting height control 8 Fuel tank 9 Oil tank 10 Muffler 11 Fuel tap 12 Spark plug 13 Lower handlebar 14 Protective cover 15 Gear housing 16 Drive belt 17 Cutting cover 18 Cutter bolt 19 Cutter/cutting equipment 20 Engine shaft 21 Vibration d
WHAT IS WHAT? What is what on the lawn mower? M48 Pro 1 Handle / handlebar 2 Engine brake handle 3 Starter handle 4 Vibration damper 5 Throttle control/choke control 6 Oil tank 7 Muffler 8 Cutting height control 9 Spark plug 10 Lower handlebar 11 Cutting cover 12 Fuel tap 13 Air filter 14 Fuel tank 15 Cutter bolt 16 Spring washer 17 Cutter/cutting equipment 18 Engine shaft 19 Combination spanner 20 Operator′s manual English – 11
ASSEMBLY Fitting the handlebar Take care not to damage the cables and wires when you fold up the handlebar. M48 Pro Always empty the fuel tank before you place the lawn mower on its side. Dismantling • Unscrew the bolt holding the cutter. • Remove the bolt, washer and spring washer. • Remove the cutter. Lift up the handlebar until the handlebar's upper tubular construction comes directly opposite to the handlebar's lower section. Tighten the knob correctly.
FUEL HANDLING Fuel ! Fuelling WARNING! Always ensure there is adequate ventilation when handling fuel. ! WARNING! Taking the following precautions, will lessen the risk of fire: Do not smoke or place hot objects near fuel. Petrol • Use good quality unleaded or leaded petrol. • Use fuel with a low octane grade. • If the machine is not used for some time the fuel tank should be emptied and cleaned. Engine oil Check the oil level before starting the lawn mower.
STARTING AND STOPPING Starting and stopping Starting On the M53 S Pro model disengage the drive on the wheel by moving the clutch lever forward. ! WARNING! Note the following before starting: Do not start a lawn mower unless the cutter and all covers are fitted correctly. Otherwise the cutter could come loose and cause personal injuries. Pull the engine brake handle against the upper handlebar with your left hand. Always move the machine away from the refuelling area before starting.
STARTING AND STOPPING Drive The model M53 S Pro is a self-propelled machine with the drive on the front wheels. To use the drive on the wheel pull the clutch lever towards you. Stopping On the M53 S Pro model disengage the drive on the wheel by moving the clutch lever forward. Set the throttle control in the idling position. Stop the engine by releasing the engine brake handle. Close the fuel tap.
MAINTENANCE Spark plug ! WARNING! Make sure the cutting attachment has stopped before cleaning, carrying out repairs or an inspection. Disconnect the HT lead from the spark plug. Air filter ! WARNING! The muffler gets very hot in use and remains so for a short time afterwards. Do not touch the muffler if it is hot! If the machine is low on power, difficult to start or runs poorly at idle speed: always check the spark plug first before taking any further action.
MAINTENANCE Cutter ! WARNING! Always wear heavy-duty gloves when repairing the cutting attachment. The blades are very sharp and can easily cause cuts. It is important to have a sharp and correctly balanced cutter. Loosen the bolt holding the cutter and leave the cutter at a service workshop at least once a year for grinding and balancing. An appropriate time to do this is after the mowing season has finished. • Drain the oil by tipping the engine so that the oil runs out through the filler pipe.
MAINTENANCE Drive and gearbox Weekly maintenance M53 S Pro 1 2 4 3 Ensure the wheels and wheel axles are clean and free from leaves, grass, etc. It is also important to keep clean around the drive gearbox. • • Remove the protective cover by unscrewing the screws. Now guide the protective cover out under the stay and over the drive axle. 1 Change the engine oil. 2 Lubricate the cutting height system 3 Clean the spark plug. Check that the electrode gap is 0.70.8 mm.
TECHNICAL DATA M48 Pro M53 S Pro 160 160 Engine Cylinder displacement, cm3 Cylinder bore, mm 64 64 Stroke, mm 50 50 Power, kW/ rpm 4,1/3600 4,1/3600 Ignition system Type of ignition system Transistor Transistor Spark plug NGK - BPR6ES NGK - BPR6ES Electrode gap, mm 0,7 - 0,8 0,7 - 0,8 Fuel tank capacity, litre 1,1 1,1 Oil tank capacity, litre 0,55 0,55 Engine oil Service classification SG - SJ; SAE 10W -30 Service classification SG - SJ; SAE 10W -30 30,0 35,0 Sound power level
TECHNICAL DATA EC-declaration of conformity (Applies to Europe only) Höörs Plåt, Box 76, SE-243 22 Höör, Sweden, tel: +46-413-29600, declares under sole responsibility that the lawn mowers Husqvarna M48 Pro and M53 S Pro from the serial numbers 030600001 and onwards comply with the requirements of the COUNCIL’S DIRECTIVE: of May 3, 1989 ”relating to electromagnetic compatibility” 89/336/EEC, and applicable supplements. of May 8, 2000 ”relating to the noise emissions in the environment” 2000/14/EC.
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