Walk-Behind Lawn Mowers
Throttle Cable Adjustment
Loosen casing clamp screw (1) and move the governor lever (2) in the direction of screw (1) as far as possible. Move the throttle control to the choke position. Tighten casing clamp screw.
Should only be made by an authorised Briggs & Stratton dealer. Under no circumstances should the engine be adjusted to run at a speed in excess of that shown on the Declaration of Conformity.
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':-
- Drain fuel by running the engine until the fuel tank is empty.
- Remove the spark plug lead.
- Allow the engine to cool.
- Drain the oil while the engine is warm. (Not hot)
- Tip the mower over on to its left hand side thus ensuring that the air cleaner is kept uppermost to prevent engine damage.
- Remove the oil filler dipstick and drain the oil into a suitable container.
- Refill with new oil of the recommended SAE viscosity grade. (Refer to-'Before Starting the Mower').
Air Cleaner Service
To service the air cleaner, remove screw (1) and remove cover (2). Carefully remove foam element (3) and wash in a solution of liquid detergent and water. Allow to air dry thoroughly before fitting or wrap in a cloth and squeeze dry. If very dirty, replace. Saturate with clean engine oil and squeeze out excess. After servicing, re-assemble the air cleaner and fasten securely. To service the air cleaner, loosen the two screws (1) and remove cover (2). Carefully remove pre-cleaner (3) and cartridge (4) wash in a solution of liquid detergent and water. Allow to dry thoroughly before fitting.
If very dirty, replace.
- Do not use petroleum solvents.
- Do not use pressurised air.
- Do not oil the cartridge.
After servicing, install the pre-cleaner and cartridge in the assembly base (5). Replace the cover and securely tighten the screw to the base.
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 & Stratton service dealer. Check the spark plug gap with a feeler gauge.
Keeping the Engine Clean
Remove all grass and debris from the engine including the exhaust/exhaust guard, the air ways in the top cowl and the surrounding deck areas on a daily basis after use. Never spray the engine with water during cleaning. Water can contaminate the fuel. Always clean with a brush or compressed air.
Grass and debris may clog the engine's air cooling system especially after prolonged operation while cutting tall, dry grass. The internal cooling fins and surfaces may require cleaning to prevent overheating and engine damage. We recommended that this service be carried out by an authorised Briggs and Stratton dealer.
Clutch & Lubrication
Clutch Cable Adjustment
- Stop the engine.
- Pull the machine backwards at the same time progressively engage the clutch lever until the rear rollers lock, at this point the clutch lever should be 60mm from the handlebar. Refer to Fig 1.
- If the distance between the clutch lever and handlebar is less than 60mm regulate the engagement position with the black plastic cable adjuster. Refer to Fig 2 to regain the 60mm distance.
Note this is a temporary adjustment and at the nearest opportunity a service should be carried out to ensure the spring on the clutch cable attached to the gearbox clutch. This adjustment should be done using the metal adjuster at the control with the plastic adjuster reset fully wound in. When the spring is set tighten the inner lock nut to secure position.
Petrol Mower Maintenance Schedule
To prevent accidents stop the engine and disconnect the spark plug lead before attempting to carry out maintenance procedures on the mower.
- After the very first hour check clutch adjustment.
- 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.
- Check the oil level.
- Remove grass debris from around the engine, exhaust/exhaust guard and air ways in the top cowl and underside of the deck housing.
- Remove grass debris from the grass-bag and check for signs of damage.
- Check the condition of guards and safety devices and cutter-blades.
25Hrs or Every Season
- Change the engine oil if continuously operating under heavy load or high ambient temperature.
- Service the air cleaner.Lubricate wheels, pivot points and linkages and grease the inner control cables at point of entry and exit from their outer casing.
- Check the clutch cable adjustment.
- Sharpen the cutter-blade.
50Hrs or Every Season
- Change the engine oil.
100Hrs or Every Season
- Clean the engine cooling system. Clean more often under dusty conditions or when airborne debris is present or after prolonged operation whilst cutting tall, dry grass.
- Replace the spark plug.
Motor (Electric Only)
The motor is maintenance free.
Switch Control Unit (Electric Only)
The switch control unit is maintenance free.
Remove grass debris from the grass-bag immediately after use and check its condition for signs of damage.
To prevent accidents replace a damaged grass-bag immediately.
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 treated grass and store well away from corrosive materials.
Securing Nuts & Bolts
Regularly check that all securing nuts and bolts are tight. Replace missing or damaged items immediately.
Cutterblade Removal (Petrol)
Drain the fuel by running the engine until the fuel tank is empty and the engine stops. Remove the spark plug lead and allow the engine to cool. Turn the mower on its left hand side and ensure that the air cleaner side of the engine is uppermost. Firmly grip the end of the cutter blade with the gloved hand and remove the bolt, spring washer and distance piece securing the cutter blade with a 9/16" A/F spanner.
To prevent accidents never work on the cutter blade unless the spark plug lead has been removed. The cutter blade has sharp edges. ALWAYS wear strong gloves to protect your hands when working on the cutter blade. DO NOT rotate tools towards the cutting edges to avoid the risk of injury should the tool slip. ALWAYS use genuine Grizzly replacement parts.
The condition of the cutter blade and its mounting arrangement should be checked regularly for signs of wear or damage. Ensure that the cutter blade is not bent or cracked.
A damaged cutter blade that is out of balance will vibrate excessively and may break. DO NOT use an unbalanced cutter blade.
Regularly check that the bolt securing the cutter blade is tightened to the specified torque of 54Nm.
Replace the cutter blade every 2 years of sooner if excessively worn or damaged.
To prevent injury it is wise to seek assistance when turning the mower on its side.
Cutter Blade Removal (Electric)
Turn the mower on its side.
Firmly grip the end of the cutter blade (2) with a gloved hand and remove bolt (1). When replacing ensure that the new cutter blade is the correct way up with the turned edges facing towards the motor before locating onto the two carrier pins. Secure the cutter blade fixing nylon bolt and tighten to the specified torque of 20Nm.
The cutter blade has sharp edges. ALWAYS wear strong gloves to protect your hands when working on the cutter blade. DO NOT rotate tools towards the cutting edges to avoid the risk of injury should the tool slip. ALWAYS use genuine Grizzly replacement parts.
The condition of the cutter blade and its mounting arrangement should be checked regularly for signs of wear or damage. Ensure that the cutter blade is not bent or cracked. A damaged cutter blade that is out of balance will vibrate excessively and may break. DO NOT use an unbalanced cutter blade.
Regularly check that the bolt securing the cutter blade is tightened to the specified torque of 20Nm.
Replace the cutter blade every 2 years or sooner if excessively worn or damaged. To prevent injury it is wise to seek assistance when turning the mower on its side.
Cutter Blade Assembly(Electric)
To prevent accidents never reuse the fixing screws.
Cutter Blade Assembly(Petrol)
Cutter Blade Sharpening
A slightly worn cutter blade may be re-sharpened. Both blade edges must be sharpened equally to ensure balance. Sharpen the cutter blade every 25 mowing hours or more frequently if conditions require. Remove the cutter blade from the mower and clean using a brush and water. Inspect the cutter blade for signs of damage.
Sharpen both cutting edges with a flat file to restore performance.
Ensure that the cutter blade is balanced. Use a screw driver with a round shaft to support the cutter blade through its centre hole. Hold the cutter blade horizontal and then release. A balanced cutter blade will remain horizontal.
If the cutter blade is not balanced the heavy end will rotate downwards. Sharpen the heavy end until the cutter blade is correctly balanced.
PREVENT ACCIDENTS: ALWAYS charge the battery in a well ventilated area.
NEVER charge the battery near naked flames or direct heat.
ALWAYS switch off the mains electricity supply before disconnecting the charger from the battery.
ALWAYS use the battery charger supplied with the mower.
Battery charging should not be necessary during normal use. The engine operation will automatically charge the battery. If the mower is stored for a long period recharging the battery may be necessary to permit electric starting.
Charge the battery only when necessary.
To recharge the battery:
Disconnect the battery lead from the product lead and then connect the battery lead to the charger.
Connect the charger plug to the mains electricity supply and switch on to charge the battery for a fourteen hour period.
Switch off the mains electricity supply and disconnect the charger plug.
Disconnect the battery lead from the charger and then connect the battery lead to the product lead.
IMPORTANT - PREVENT DAMAGE: NEVER connect the battery charger to the engine lead as this will cause the charger to be permanently damaged. Chargers damaged in this manner will not be replaced under warranty.
CAUTION - PREVENT ENVIRONMENTAL DAMAGE: The battery and charger have a separate collection mark. This indicates that for disposal of the battery and battery charger they must be taken to an authorised disposal site. They must not be disposed of with general waste.
- These products should not be disposed of as unsorted municipal waste.
- They should be taken to a designated collection point or recycling centre and handled according to national laws in the area.
- The consumer has a critical role in returning waste electronic/electrical equipment for recycling and disposal.
- Recycling keeps these products out of the municipal waste stream.
- The crossed-out bin symbol is a reminder to follow these points.
- Please contact your local authority or local dealer and ask for further details regarding the correct method of disposal.