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 Other symbols/decals on the machine refer to special certification requirements for certain markets. 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. Always wear protective gloves. Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. Always wear: • Regular cleaning is required. Visual check.
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 Vibration damping system Your machine is equipped with a vibration damping system that is designed to minimize vibration and make operation easier. Checking, maintaining and servicing the machine′s safety equipment The handlebar system's steel tube and the cutting cover are designed to minimise the vibrations from the engine. This model also has a vibration damper fitted on the handlebar unit to further reduce vibrations.
SAFETY INSTRUCTIONS Vibration damping system The washer and cup spring should always be replaced when changing the cutter or cutter bracket. Check regularly that the vibration damping element is free from cracks. ! The handlebar system's steel tube and the cutting cover are designed to minimise the vibrations from the engine. Make sure the cutting cover is not damaged and that there are no visible defects such as cracks. General safety precautions • A lawn mower is only designed to mow lawns.
SAFETY INSTRUCTIONS Before use: Fuel safety (Refuelling/Storage.) ! 1 Check that the engine brake works correctly and is undamaged. See the instructions under the heading Checking the braking effect. 2 Check that all handles and controls are undamaged and free of oil. 3 Check that the anti vibration system works and is not damaged. 4 Check that the muffler is securely attached and not damaged.
SAFETY INSTRUCTIONS General working instructions WARNING! This section describes basic safety precautions for working with the lawn mower. This information is never a substitute for professional skills and experience. If you get into a situation where you feel unsure about how to progress, stop and seek expert advice. Contact your dealer, service agent or an experienced lawn mower user.
SAFETY INSTRUCTIONS • Never run with the machine when it is running. You should always walk with the lawn mower. • To raise the cutting height move the lever to the left and then backward. Cutting height Shut down the engine before changing the cutting height. The cutting height adjustment is spring assisted. The cutting height can be adjusted in five different steps. Do not set the cutting height too low as there is a risk that the cutters might hit slopes with unevenness.
WHAT IS WHAT? What is what on the lawn mower? M48 Pro 1 Handle / handlebar 2 Vibration damper 3 Engine brake handle 4 Starter handle 5 Throttle control/choke control 6 Cutting height control 7 Fuel tank 8 Muffler 9 Spark plug 10 Lower handlebar 11 Oil tank 12 Fuel tap 13 Air filter 14 Cutting cover 15 Cutter/cutting equipment 16 Cutter bolt 17 Cup spring 18 Cutter bracket 19 Engine shaft 20 Operator′s manual 10 – English
WHAT IS WHAT? 2 1 19 12 3 13 20 4 6 5 21 11 23 14 22 15 16 18 7 17 24 8 9 10 What is what on the lawn mower? M53 S Pro 1 Handle / handlebar 2 Vibration damper 3 Engine brake handle 4 Throttle control/choke control 5 Starter handle 6 Clutch lever 7 Cutting height control 8 Fuel tank 9 Muffler 10 Protective cover 11 Spark plug 12 Lower handlebar 13 Oil tank 14 Fuel tap 15 Air filter 16 Cutting cover 17 Drive belt 18 Gear housing 19 Cutter/cutting equipment 20 Cutter bolt 21 C
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 bolt, washer and cup spring. • 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 Only use recommended engine oil. See the Technical data section. Fuelling ! WARNING! Always ensure there is adequate ventilation when handling fuel. Petrol ! WARNING! Taking the following precautions, will lessen the risk of fire: • Use good quality unleaded or leaded petrol. Do not smoke or place hot objects near fuel. • Use fuel with a low octane grade. Always shut off the engine before refuelling.
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 Set the throttle control in the idling position. Stop the engine by releasing the engine brake handle. On model M53 S Pro the drive is also disengaged when you release the engine brake handle. Close the fuel tap.
MAINTENANCE Maintenance ! When reassembling, make sure that the filter completely seals against the filter holder. 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 Spark plug ! The air filter must be regularly cleaned to remove dust and dirt in order to avoid: • Carburettor malfunctions • Starting problems • Loss of engine power • Unnecessary wear to engine parts.
MAINTENANCE Cutter ! WARNING! Always wear heavy-duty gloves when repairing the cutting attachment. The blades are very sharp and can easily cause cuts. • Unscrew the oil filler cap. • Drain the oil by tipping the engine so that the oil runs out through the filler pipe. • Ask where you can dispose of surplus engine oil at your local petrol station. • Fill with new engine oil of a good quality. See the Technical data section. • Check the oil level with the dipstick on the oil filler cap.
MAINTENANCE Drive and gearbox Weekly maintenance M53 S Pro 1 2 3 4 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. • Clean the gearbox with a brush. Also check that the drive belt and belt pulley are undamaged, for example, no cracks.
TECHNICAL DATA Technical data M48 Pro M53 S Pro 160 160 Engine Cylinder displacement, cm3 Cylinder bore, mm 64 64 Stroke, mm 50 50 Power, kW 4,1 4,1 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; Service classification SG - SJ; SAE 10W -30 SAE 10W -30 Fuel and lubrication system
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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