Engine Model: RS100 and RSC100 engines SELF-HELP PROBLEM SOLVING and MAINTENANCE for PETROL LAWNMOWERS These engines are fitted to the following recent products: • HP 414 • SP 414 Contents 1 Safety Precautions ...................................................................................................... 2 2 Fuel, Oil, Air Filter and Spark Plug Requirements.................................................... 6 3 Routine Engine Maintenance .........................................................
Engine Model: RS100 and RSC100 engines 1 Safety Precautions Your lawnmower should be used with due care and attention. Symbols have therefore been placed on various parts of the machine to remind you of the main precautions to be taken. Their meaning is explained below. You are also asked to read the safety precautions listed below. 1. Warning: Read the instruction manual before using the machine. 2. Beware of thrown objects: Keep other people at a safe distance whilst working. 3.
Engine Model: RS100 and RSC100 engines the engine is switched off. PREPARATION: 1. While mowing, always wear sturdy footwear and long trousers. Do not operate the equipment when bare foot or wearing open sandals. Avoid loose clothing that may snag on moving parts. 2. Thoroughly inspect the area where the equipment is to be used and remove all objects which may be thrown by the machine or damage the cutter assembly and the engine (stones, sticks, metal wire, bones, etc). 3.
Engine Model: RS100 and RSC100 engines 16. Do not put your hands or feet near or under rotating parts. Keep clear of the discharge opening at all times. 17. Never pick up or carry a lawnmower while the engine is running. 18.
Engine Model: RS100 and RSC100 engines • • Wear strong working gloves; Grasp the machine at the points that offer a safe grip, taking account of the weight and its distribution; • Use an appropriate number of people for the weight of the machine and the characteristics of the vehicle or the place where it has to be placed or collected. 2. During transport, fasten the machine securely with ropes or chains. Page 5 of 32 Mountfield100cc Selfhelp Guide 2011, Issue 1.
Engine Model: RS100 and RSC100 engines 2 Fuel, Oil, Air Filter and Spark Plug Requirements FUEL – these are 4-stroke petrol engines. The correct fuel is ordinary unleaded petrol. NOTE: The RV150 and SV150 engines have dual fuel capability and so biofuels may be used without additional adjustment to the engine. Fuel capacity: • RS100 engine – 0.8 litre • RSC100 engines – 0.8 litre Do not overfill the fuel tank – fill the tank until the fuel level reaches the internal ledge of the filler neck.
Engine Model: RS100 and RSC100 engines 3 Routine Engine Maintenance Regular and careful maintenance is essential to preserve the original performance and safety level of the engine. Always store the mower in a dry place. TESTING FOR A SPARK (this job requires 2 people) 1. Stand the machine on a firm surface and set the height adjusters to the lowest setting for added safety. 2. Remove the H.T. lead (2 in the diagram) – a push/pull fit. 3. Unscrew the spark plug with a genuine spark plug spanner. 4.
Engine Model: RS100 and RSC100 engines CHANGING ENGINE OIL Check the engine oil before each use. Engine Oil These small four stroke engines hold up to 0.45 litre of oil. Any oil shortages can cause premature wear or serious damage to the engine. So too will using the incorrect grade of oil or not changing oil in accordance with the manufacturer’s recommendations.
Engine Model: RS100 and RSC100 engines ENGINE MANUFACTURER’S RECOMMENDATIONS: As a guide, the information below has been copied from the engine manufacturer’s user manual: RS100 and RSC100 engines: NB: Please refer to the engine manufacturer’s manual for specific information. Page 9 of 32 Mountfield100cc Selfhelp Guide 2011, Issue 1.
Engine Model: RS100 and RSC100 engines 4 Starting the Engine The correct way to start the mower: Check the engine oil, and there is sufficient clean/fresh petrol in the fuel tank. 1. Ensure the machine is on a firm level surface (path, patio or short grass). Check the underside is clear from old lawn debris. If you have to tilt the mower, do this backwards only. Before checking the underside, make sure to remove the HT Cap (sparkplug cap). 2. Check the H.T.
Engine Model: RS100 and RSC100 engines QUICK TROUBLESHOOTING GUIDE: Problem: Likely Cause: Engine is • No fuel difficult to • Stale fuel or build-ups in fuel start tank • Spark plug disconnected A: • Dirty plug or incorrect gap • Air lock • Operator Presence Control (OPC) Cable stretched Solution: • Check and top up (see A) • Drain old fuel, re-fill with fresh fuel (see A) • Check the spark plug cap is firmly fitted on the spark plug (see B) • Check the spark plug (see B) • Bleed air from fuel supp
Engine Model: RS100 and RSC100 engines B: Spark plug: 1. Check the H.T. lead (spark plug cap) is correctly fitted to the spark plug. To test for a spark see 2-6 below. 2. Stand the machine on a firm surface and set the height adjusters to the lowest setting for added safety. 3. Remove the H.T. lead (2 in the diagram). 4. Unscrew the spark plug with a genuine spark plug spanner. 5. Fit the plug back into the end of the H.T.
Engine Model: RS100 and RSC100 engines D: Adjusting the Operator Presence Control cable: 1. With time the OPC cable may stretch and not fully engage switch which allows the electrical feed to the spark plug. This is the cable which runs down from the top bar on the main handle. 2. Follow the OPC cable down to the back left hand corner of the engine where the lever moves when the OPC is depressed.
Engine Model: RS100 and RSC100 engines 5 Very High Revs from the Engine QUICK TROUBLESHOOTING GUIDE: Problem: Likely Cause: Engine revs are very • Debris caught in the high, the stone guard throttle springs flap is blown up the in the air off the grassbox, • Damaged throttle or the mower is regulator linkage, or ‘running away’ (on selfother unspecified propelled models) throttle problems A: Removing debris from the throttle linkage: 1. A From the back of the mower come around to the side on the lett.
Engine Model: RS100 and RSC100 engines 6 Engine Starts and Smokes Heavily QUICK TROUBLESHOOTING GUIDE: Problem: Likely Cause: White, blue or • Over-filled with oil grey smoke from • Mower has been tipped incorrectly exhaust Oil coming from exhaust • • Over-filled with oil Mower has been tipped incorrectly Solution: • Reduce oil (see A) • Remove oil from cylinder (see B) • • Reduce oil (see A) Remove oil from cylinder (see B) A: Do not overfill the engine with oil.
Engine Model: RS100 and RSC100 engines Oil capacity is 0.45 litre 2. The filter is located on the left hand side of the engine (viewed from the back). A sponge filter should be just sticky to the touch with oil. If very oily, clean the foam filter in hot soapy water, dry and lightly oil it. Squeeze to remove any excess oil. A paper air filter which has been contaminated by oil needs to be replaced with a new paper filter. 3. Remove and clean the spark plug completely. ONLY USE A GENUINE SPARKPLUG SPANNER.
Engine Model: RS100 and RSC100 engines 7 Engine Cutting Out or Running Unevenly QUICK TROUBLESHOOTING GUIDE: Problem: Likely Cause: Engine hunts • Fuel cap too tight briefly and stops Engine hunts continuously A: • • Dirt in fuel supply Air drawn into the engine from a faulty manifold Solution: • Loosen cap (see A) • • Replace fuel (See B) Refer to dealer The fuel tank on these gravity-fed engines breathes through the thread on the fuel cap. An air lock may be created if the fuel cap is too tight.
Engine Model: RS100 and RSC100 engines 8 Pull Cord Not Pulling or Snatching Back QUICK TROUBLESHOOTING GUIDE: Problem: Likely Cause: Pull cord will not • OPC not engaged pull • Blade rotation is impeded Cord snatches back Solution: • Hold OPC in (see A) • Free blade (see B and D) • “Hydraulic Lock” • • Blade is unbalanced or damaged • Remove oil from cylinder (See C) (See D and E) and refer to dealer A: The Operator Presence Control (OPC) safety bar/lever must be held fully in to the main handle
Engine Model: RS100 and RSC100 engines D: The engine pull cord may snatch back when pulled if the machine is not on a flat and firm surface, or the blade and/or its mounting boss are damaged or fitted insecurely. . E: 1. Ensure the machine is situated on a firm level surface (path, patio or short grass). Check the underside of the machine is clear from old lawn debris. If you have to tilt the mower, do this backwards only.
Engine Model: RS100 and RSC100 engines 9 Cutting and Collecting Grass, Vibration QUICK TROUBLESHOOTING GUIDE: Problem: Likely Cause: Mower will not • Technique is incorrect cut grass • Grass is too long or wet properly • Problem with the blade or blade mounting Mower vibrates excessively • • Mower will not collect grass properly A • • • Solution: • See A • See A • See B Problem with the blade or blade mounting The engine mounting is loose • See B • See B Technique is incorrect Grass is too long
Engine Model: RS100 and RSC100 engines Follow these simple steps for the best mulching results, and remember that to obtain the perfect cutting height you need to work down from the maximum height setting in steps until you reach your ideal height. 1. Remember the one third rule – never remove more than one third of the length of the blade of grass whenever you mow. This is good advice no matter what type of mower you use! 2.
Engine Model: RS100 and RSC100 engines Excessive vibration can indicate damage to the blade, or blade mounting, or that the engine is loose Check the blade bolt is tight. WARNING: Mark the blade before attempting to remove it. This will enable you to replace it the correct way up. Check the blade mount. The mount has two lugs one either side of the blade securing bolt. If these have sheered then the blade can move.
Engine Model: RS100 and RSC100 engines C Build-Up of Grass Clippings Underneath or Lack of Airflow When cutting grass make sure you are using the machine on full throttle (if one is fitted). Raising the height of cut increases airflow and assists grass collection. This is especially so if the grass is damp. Reducing the height of cut in stages to achieve the desired level is a sound strategy. 1. Ensure there is no build up of grass underneath the casing.
Engine Model: RS100 and RSC100 engines lead (spark plug cap) and restart the engine.
Engine Model: RS100 and RSC100 engines c) If the above steps do not return the tension to the cable and restore the drive, the cause of the problem may be the belt has come off the drive pulleys (see Section B) or the clutch cable has broken or become detached (see a service dealer). Find your local ServiceLink centre at www.servicelink.org.uk B REPLACING THE BELT To replace the belt on these machines, it will involve tipping the machine to gain access to the belt.
Engine Model: RS100 and RSC100 engines 4. Raise the stone guard flap, tip the mower BACKWARDS with the handle hanging over the edge of the bench – it will stand upright like this 5. Mark the blade so that after removing it you can replace it the correct way 6. Unscrew the blade (normal thread so turn the spanner anti-clockwise to unfasten) 7.
Engine Model: RS100 and RSC100 engines 11 Transportation and Handling The correct way to gain access underneath the mower: Before checking the underside, make sure to remove the HT Cap (sparkplug cap). ALWAYS lift from the front of the mower so that the front wheels are raised, and the handles touch the ground at the rear. Do not tip the mower sideways or forward (like one might lift a wheelbarrow) as this can flood the air filter, exhaust and even the cylinder with engine fluids.
Engine Model: RS100 and RSC100 engines 12 Maintenance and Storage Regular and careful maintenance is essential to preserve original performance and safety levels of the engine. Always store the mower in a dry place. Please also refer to the Engine Routine Maintenance information for additional help. Key maintenance and storage information (all engines): 1. Keep all nuts, bolts and screws tight to ensure the equipment is in safe working condition.
Engine Model: RS100 and RSC100 engines 13 Guarantee, Spare Parts, Repairs MOWER MODEL: HP414 SP414 GUARANTEE PERIOD: 1 year from the date of purchase If the machine is used commercially the guarantee period is 90 days from the date of purchase. If your product fails due to a defect in materials or workmanship during the guarantee period it will be repaired or replaced at no charge provided all repairs are carried out by an authorised service dealer.
Engine Model: RS100 and RSC100 engines Repairs Your local ServiceLink centre can be found at www.servicelink.org.uk Notes: Page 30 of 32 Mountfield100cc Selfhelp Guide 2011, Issue 1.
Engine Model: RS100 and RSC100 engines Notes: Page 31 of 32 Mountfield100cc Selfhelp Guide 2011, Issue 1.
Engine Model: RS100 and RSC100 engines Notes: Page 32 of 32 Mountfield100cc Selfhelp Guide 2011, Issue 1.
