Do you have a question about the Harrier 41 and is the answer not in the manual?
Questions and answers
Olliver Southgate
March 11, 2025
Speed variation on Harrier 4q self propelled mower, not working. How can I adjust? It runs at tortoise pace at all settings of the variator control.
1 comments:
Mr. Anderson
March 11, 2025
To adjust the speed variation on a Hayter Harrier 41 self-propelled mower that only runs at a slow pace, set the throttle to the fast position. If the mower still does not self-propel properly, check if the clutch is out of adjustment and adjust the clutch cable if necessary. Also, inspect the drive belt for damage and replace it if needed.
MAIN FEATURES Main Features Air Cleaner Fuel Filler Cap Oil Filler Cap and Dipstick Handlebar Securing Knob Engine Start-Grip Throttle Control. Engine Stop lever. Handlebar Ground Drive Clutch Lever (411 & 412 Only) 10 Variable Speed Control (412 Only) 11 Grassbag Assembly 12 Height of Cut Adjuster 13 Serial No.
INTRODUCTION Thank you for purchasing a Hayter mower. The following pages are designed to help you gain safe and efficient service from your mower. IMPORTANT: This ‘Owners Handbook’ should be regarded as part of the mower as it gives essential information regarding mower safety, operation, maintenance and specifications. Read and understand this handbook prior to operating your mower for the first time.
LIMITED WARRANTY Hayter Limited warrants to the original user/purchaser that this unit shall be free from defects in material and workmanship under normal use and service for a period of three years from the date of purchase. The manufacturer of the engines furnish their own warranty and services are provided through their authorised network (Refer to "Engine Warranty Statement").
SAFETY PRECAUTIONS Safety Alert Symbol This safety alert symbol indicates important safety messages. When you see this symbol be alert to the possibility of injury. Carefully read the following and inform others. Your mower is perfectly safe if used correctly. Failure to observe the following precautions may result in serious injury.
SAFETY PRECAUTIONS Preparation - Always use fresh fuel. Stale fuel can block the carburettor and cause leakage. - Replace fuel tank and oil tank caps securely. A damaged cutterblade or loose fixing bolt are major hazards. Before use, always visually inspect the cutting mechanism to ensure that it is in good condition.
Maintenance & Storage Safety Alert - Be aware to the possibility of injury. Carefully read the Owners Handbook before using the machine. Engine Stop Height of Cut Adjustment (Symbol) (Symbol) STOP 305113 SAFETY PRECAUTIONS Safety Symbols Danger of severing toes or fin- gers in cutting mechanism.
ASSEMBLING THE MOWER Delivery Checklist Remove the mower from the packaging and check that the following items have been supplied correctly. If any items are missing contact, your local Hayter dealer. 1. Engine Handbook. 2. Warranty Reg. Card. 3. Grassbag. 4.
BEFORE Prevent Engine Damage To prevent engine damage the engine is shipped without oil or petrol. The engine must be filled with the correct grade of oil and petrol before starting the engine. Always use high quality detergent oil classified SAE 30 oil. Never use additives with recommended oil.
OPERATING THE MOWER Controls Operate all control levers several times and ensure that the cables move freely. Check that the engine stop and ground drive clutch levers return freely to their rest position when released. Whilst operating the engine throttle mechanism slight resistance should be felt when moving the lever to the ‘choke’...
OPERATING MOWER Electric Start (412 Only) - Stand behind the mower and hold the handlebar together with the engine stop lever. Turn the ignition key in a clockwise direc- tion and hold in position to crank the engine. When the engine starts release the key and move the throttle to the fast position after starting a cold engine.
OPERATING THE MOWER Slopes To prevent engine damage do not use the mower on slopes greater than 20 degrees. Height of Cut Move the height of cut lever sideways to disengage it from the locking notch, then push forwards to lower or pull backwards to raise the height of cut.
OPERATING MOWER Without Grass Collection Remove the grassbag and operate the mower with the rear deflector in the closed position. Heavy Growth Areas of heavy growth should be mown without collecting the clip- pings. If collection is required, first mow the area without the grass- bag at the maximum height of cut setting.
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LAWN CARE CALENDAR To be used as a guide only. January There is very little work to do this month apart from brushing away leaves. Keep off the grass if frozen or waterlogged. February Rake the grass thoroughly. Spike the lawn to aerate and stimulate soil organisms and root growth and apply lawn sand if necessary.
LAWN CARE CALENDAR August Keep mowing regularly and watering as necessary. Fill any cracks caused by drought with a mixture of sharp sand and soil. In dry weath- er conditions leave the grass longer to help retain ground moisture. September Raise the height of cut to allow the grass to thicken and protect the roots from the winter frost and snow.
MAINTENANCE SCHEDULE After the very first hour check clutch adjustment. See page 1.22. After the very first five hours change the engine oil. Follow the hourly or calendar intervals, whichever occurs first. More frequent service will be required if working for prolonged periods under dusty, dry conditions, or when airborne debris is present or after extensive operation cutting tall, dry grass.
To prevent accidents stop the engine disconnect the spark plug lead before attempting to carry out maintenance procedures on the mower. Air Filter Fuel Cap Start Grip Oil Cap/ Dipstick Exhaust Guard Spark Plug / Lead Throttle Cable Adjustment Loosen casing clamp screw (1) and move the governor lever (2) in the direction of screw (1) as far as posible.
MAINTENANCE MOWER Oil Service Check the oil level daily before starting the engine and ensure that the correct oil level is maintained. Refer to-‘Before Starting the Mower’ for oil checking and filling instructions. Change the engine oil after the first 5 hours of operation and thereafter according to the ‘Maintenance Schedule’:- Air Cleaner Service To service the air cleaner, loosen screw (1) and remove cover (2).
MOWER MAINTENANCE Spark Plug Service Use only Briggs & Stratton spark tester (1) to check for a spark as shown in the diagram. Replace the spark plug every 100 hours or every season, whichever occurs first. A spark plug wrench is available from any authorised Briggs &...
MOWER MAINTENANCE Deck Housing Remove grass debris from the top and underside of the deck housing immediately after use. Fertilisers and top dressings are particularly corrosive. Thoroughly clean the mower deck immediately after use on treat- ed grass and store well away from corrosive materials. Securing Nuts &...
MOWER MAINTENANCE Lubrication Lubricate the wheels, pivot points and linkages with engine oil every 25 operating hours. Apply a good quality medium grease to the inner control cables at the point of entry and exit from their outer casing. Cutterblade Removal Drain the fuel by running the engine until the fuel tank is empty and the engine stops.
MOWER MAINTENANCE Cutterblade Assembly Assemble the cutterblade with the turned up edges facing towards the engine. Secure the cutterblade using the bolt (1), spring washer (2), and distance piece (3) and tighten to a torque of 54Nm Cutterblade Sharpening 30 -45 A slightly worn cutterblade may be re-sharpened.
MOWER MAINTENANCE Storage To store the handlebar unscrew the 2 small securing knobs sufficient- ly to allow it to be pivoted forwards to rest against the mower. Take care to ensure that the control cables do not become snagged at the pivot point and depress the engine stop lever to prevent it being dam- aged through contact with the engine spark plug.
MOWER MAINTENANCE Battery charging (412 only) - PREVENT ACCIDENTS: ALWAYS charge the bat- tery in a well ventilated area. NEVER charge the battery near naked flames or direct heat. ALWAYS switch off the mains electricity supply before discon- necting the charger from the battery. ALWAYS use the battery charger supplied with the mower.
PROBLEM Engine will not turn over Engine smokes Engine runs then stops Engine will not start Engine runs rough TROUBLE SHOOTING POSSIBLE FAULT Engine stop lever released. Incorrect oil level. Obstruction under deck. Battery discharged (412 Only) Excess oil level. Air cleaner cartridge oil soaked or blocked.
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TROUBLE SHOOTING PROBLEM Engine vibrates excessively Uneven cut Discharge chute blocks Mower is hard to push Mower will not self propel (Autodrive Only) Poor grass collection 1.28 POSSIBLE FAULT Mounting bolts loose. Cutterblade bolt loose. Cutterblade out of balance. Bent crankshaft. Undulating ground conditions Cutterblade worn Cutterblade out of balance...
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Do you have a question about the Harrier 41 and is the answer not in the manual?
Questions and answers
Speed variation on Harrier 4q self propelled mower, not working. How can I adjust? It runs at tortoise pace at all settings of the variator control.
To adjust the speed variation on a Hayter Harrier 41 self-propelled mower that only runs at a slow pace, set the throttle to the fast position. If the mower still does not self-propel properly, check if the clutch is out of adjustment and adjust the clutch cable if necessary. Also, inspect the drive belt for damage and replace it if needed.
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