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the dipstick is rested on the filler pipe, the oil level must be between the min and max 
marks on the dipstick.

2.  Start the engine and allow it to run briefly.
3.  Stop the engine, wait one minute and check the oil level. Top up if necessary.

NOTE! 

See more in engine manual.

Replacing the blade

WARNING!

- Before you remove the grass collection bag, stop the engine and wait until the blade 
stops completely.
- You will need garden gloves (not provided) and a spanner wrench to remove the 
blade.
- Always handle the blade with care- sharp edges could cause injury USE GLOVES.
- Don’t hold the blade by hand directly.

Renew your metal blade after 50Hrs mowing or 2yrs which ever is sooner regardless of
condition.

Regularly check your blade. If the cut of your grass is poor, the blade might be blunt. 
Damaged blades not only result in a bad cut, they cause excessive vibration and 
uneconomical running of the engine. If the blade has worn excessively and become pitted 
and blunt, it should be replaced or sharpened.

1.  Tip the machine slightly towards the oil filler pipe and reach under the deck. 
2.  Hold the blade and unscrew the blade bolt counterclockwise using a spanner wrench. 

Remove the washer and the blade. 

STORING AND MAINTENANCE

Fig 17

STORING AND MAINTENANCE

3.  Inspect the blade adaptor on any signs of damage. 
4.  Fit a new blade, locate the blade on the two studs on the blade flange and then replace 

the washer and bolts. 

5.  Check the washer is still slightly domed to keep the pressure on the bold to stop it 

unwinding, keeping the blade firmly secure. Then replace the washer (right way around!) 
and bolts. 

6.  Make sure the blade is correctly located, and then firmly tighten the bolt. Do not over 

tighten. The up turn of the blade must project into the motor compartment. 

NOTE!

 The blade carrier is designed to break under heavy blade impact to protect 

the machine. if this happens also replace the blade carrier. This can be purchased 
from www.yardforce.co.uk 
If you are unsure about performing this operation call our helpline or go to an 
authorised dealer to change the blade for you.
Spare blades can be purchased via www.yardforce.co.uk

Storing the Lawnmower for Short Periods

The lawnmower can be stored for short periods of time (less than 15 days) without performing 
any storage maintenance. Before placing the lawnmower into storage always carry out the 
following:
1.  Allow the engine to fully cool.
2.  Ensure the grass bag is empty.
3.  Clean all debris from under the mower deck.
4.  Store the lawnmower on flat and level surface with the mower upright.
5.  Store in a safe place which is not accessible by children or people who are not familiar 

with operation.

Storing the Lawnmower for Extended Periods

If the lawnmower is to be place into storage for more than 15 days, storage maintenance 
must be performed on the lawnmower. If the following steps are not carried out, when you 
next operate the lawnmower it may not start correctly and may need to be serviced.

CAUTION: 

Do not empty the petrol tank in enclosed areas, near fire or when smoking. 

Petrol fumes can cause explosions and fire

.

1.  Empty the petrol tank with a petrol suction pump if available.
2.  Start the engine and let it run until any remaining petrol has been used up.
3.  Change the oil at the end of every season. To do so, remove the used engine oil from a 

warm engine and refill with fresh oil.

4.  Clean the cooling fins of the cylinder and the housing.
5.  Be sure to clean the entire machine to protect the paint.
6.  Store the machine in a well-ventilated place.

Summary of Contents for Y2GMB46SCM0

Page 1: ...GMB46SCM0 PETROL LAWNMOWER 140cc 46cm Service centre SUMEC UK Unit A B Escrick Business Park Escrick York YO19 6FD Helpline 01904 727513 Email support yardforce co uk www yardforce co uk Original Operating Manual ...

Page 2: ...ation 13 Storing and Maintenance 19 Troubleshooting 24 Declaration of Conformity 25 Read this manual carefully prior to assembling and operating the lawnmower It is dangerous to operate this product without being familiar with these instructions Keep this manual in a safe place and have it ready for future reference Y2GMB46SCM0 Operating Manual ...

Page 3: ...rass bag handle E Mulching plug F Mannal G Accessories WARNING If any parts are damaged or missing do not operate this tool until the missing parts are replaced Failure to heed this warning could result in serious personal injury NOTE Always recycle the packaging in accordance with local recycling schemes WARNING This item requires a two person lift to remove from the packaging Make sure that you ...

Page 4: ...efore using the lawnmower read the instruction manual carefully This particularly applies for the safety notes Failure to heed this instruction manual may result in severe injury or damage to the lawnmower The instruction manual is based on the standards and rules in force in the European Union Store the instruction manual for future use If you pass the lawnmower on to third parties please ensure ...

Page 5: ... the engine but move the machine away from the area of spillage and avoid creating any source of ignition until petrol vapours have dissipated replace all fuel tank and container caps securely Replace faulty silencers Prior to use visually inspect to see that the blade blade bolts and cutter assembly are not worn or damaged Replace worn or damaged blades and bolts in sets to preserve balance Keep ...

Page 6: ... all moving parts have come to a complete stop before refueling ENVIRONMENTAL PROTECTION Dispose of soiled maintenance material and operating material at the appropriate collection point Recycle packaging material metal and plastics SAFETY INFORMATION Install the handle 1 Attach the lower handle onto the unit by using one bolt and one handle tensioning knob on each side see Fig 3 2 Install the upp...

Page 7: ...supplied are used to fix the cable to the lower handle see Fig 5 Fig 5 Fig 7 ASSEMBLY 3 Lift the safety flap with one hand and hook in the grass bag see Fig 7 8 4 Release the safety flap to secure the grass bag in position Fig 8 Install the mulching plug see Fig 9 1 Remove the grass bag 2 Push the plastic mulching plug Into the discharge chute 3 Release the flap it will close back to cover the mul...

Page 8: ...must be filled with the correct grade of oil and petrol before starting the engine NOTE Running the engine with a low oil level will cause engine damage It is recommend that high detergent premium quality 4 stroke engine oil used Using non detergent oil can shorten the engine s service life and using 2 stroke oil will damage the engine CAUTION Always use high quality detergent oil classified SAE30...

Page 9: ...e engine Failure to do so will result in irreparable damage to the engine and invalidate your warranty START STOP the engine WARNING The blade begins to rotate as soon as the engine is started NOTE Do not operate the machine in enclosed or poorly ventilated areas as the exhaust gas contains toxic substance Keep hands feet hair and clothing away from all the moving parts of the machine The exhaust ...

Page 10: ...ning The rotating blade can cause serious injuries 1 Select your required setting 2 Start the engine and allow it run 3 Keep a firm grip on the upper handle with engine stop start lever and drive lever clutch lever closed and walk along with it self propelling to start mowing Good practice advice 1 Walk never run with the mower be very careful when mowing uneven or rough ground 2 Mow across slopes...

Page 11: ...ris to become dry and hard on any of the mower surfaces 4 Dried grass remnants and dirt may impair the mowing operation 5 Check that the grass chute is free of any residual grass 6 Remove any such residue 7 Check the underside of the lawn mower and the blade mount For this purpose tilt the lawn mower onto its left side opposite the oil filler neck Maintenance of the spark plug 1 Once the engine ha...

Page 12: ...ly tighten the bolt Do not over tighten The up turn of the blade must project into the motor compartment NOTE The blade carrier is designed to break under heavy blade impact to protect the machine if this happens also replace the blade carrier This can be purchased from www yardforce co uk If you are unsure about performing this operation call our helpline or go to an authorised dealer to change t...

Page 13: ...been purchased within the warranty period as described under point 1 from the retailer that it was originally bought from Please keep your receipt safe or staple it to the back of this manual for future reference 3 Our warranty covers problems caused by material or manufacturing defects and will result in the repair of these defects or replacement of the device with a like for like or similar arti...

Page 14: ... that any improper repairs will also invalidate the warranty and additional costs may be incurred Use only genuine spare parts Only these spare parts are designed and suitable for the product The use of other spare parts not only voids the warranty you can also endanger yourself and your environment Fault malfunction Cause Remedy Loud while running machine vibrates heavily Screws are loose Check s...

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