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Customer Helpline 

0845 450 5299

www.gardenservicecentre.co.uk

Customer Helpline 

0845 450 5299

www.gardenservicecentre.co.uk

Maintenance

Maintenance 

Step 4  - Changing the Oil

Step 2 - Cleaning or Replacing Spark Plug

2a Once the engine has cooled, pull off the spark plug boot with a twist. Remove the spark 

plug using the socket spanner supplied.
2b Clean the plug with a wire brush.

Tilt the lawnmower towards the oil filler, have a container ready to catch the oil and remove the 

dipstick. Once the oil has been emptied, replace the dipstick and wipe clean any spillages.

Refill with 600ml SAE30 oil or equivalent ie SAE5W/30, SAE10W/30). When the dipstick is rested 

on the filler pipe (i.e. not screwed in place), the oil level must be between the min and max marks 

on the dipstick.

See “Filling with Engine Oil’’. Do not overfill.

Start the engine and allow it run briefly.

Stop the engine, wait one minute and check the oil level. Top up if necessary.

NOTE! See more in Engine Manual.

Step 5  - Blades

For safety reasons you should only ever have your blade sharpened, balanced and mounted by 

an authorized service workshop. For optimum results it is recommended that the blade should be 

inspected once a year.

NOTE!

 

For engine maintainance, see more details in Operating Manual.

0.7-0.8 mm

2c

2c Using a feeler gauge set the gap to 0.75mm.
2d Install the spark plug carefully by hand, to avoid cross-threading.
2e After the spark plug is seated, tighten with the spanner to compress the washer.

Step 3 - Cleaning or Replacing Air Filter

WARNING! 

Never run the engine without the air filter element installed.

3a Unclip the air filter cover and remove the sponge filter element. 

To avoid objects falling into the air tank, replace the air filter cover. Wash the filter element in 

warm soap water, rinse and allow drying naturally.

3b After cleaning, it needs to be moistened with oil then squeezed dry. The oil film in the 

foam can prevent debris and dust from entering the engine.

2a

2b

underneath and the blade mount.

 

To do so, tip the lawn mower onto its left side (the opposite side to the oil filling socket). Dirt and 

grass is easiest to remove immediately after you have finished mowing the grass.

1b Check that the grass chute is free of any residual grass. Remove any such residue.

Step 1  - Cleaning (continued)

Summary of Contents for 7305368

Page 1: ...450 5299 prior to returning product to store Assembly Manual Challenge Xtreme 40cm Petrol Self Propelled Lawnmower C o m p l e t e P r o d u c t S u p p o r t A f t e r s a l e s S e r v i c e XSZ40...

Page 2: ...in a safe place following assembly for reference at a later date WARNING Always ensure anyone intending to operate this lawnmower is fully conversant with the contents of this assembly manual prior t...

Page 3: ...arefully remove all packaging Take care not to lose any instructions which may be affixed to the parts These provide important information which will be required while assembling the lawnmower 2 Keep...

Page 4: ...Make sure the rope guide is on right hand side with the 90 bend on top of the handle when you stand behind the mower CAUTION Make sure the lower and upper handles are firmly connected Step 3 Assembly...

Page 5: ...45 450 5299 prior to returning product to store Operation and Maintenance Manual Challenge Xtreme 40cm Petrol Self Propelled Lawnmower C o m p l e t e P r o d u c t S u p p o r t A f t e r s a l e s S...

Page 6: ...15 Step 1 Cleaning 15 Step 2 Clean or Replace Spark Plug 16 Step 3 Clean Replace Air filter 16 Step 4 Changing the Oil 17 Step 5 Blades 17 Troubleshooting 18 Technical Data 19 Disposal 19 Guarantee 2...

Page 7: ...ve guards or without safety devices for example deflectors and or grass catchers in place l Do not change the engine governor settings or over speed the engine m Start the engine carefully according t...

Page 8: ...to make any of these adjustments while the engine is running CAUTION Always use high quality detergent oil classified SAE30 oil or equivalent eg 5W 30 Often termed as 4 Stroke lawn mower oil Never use...

Page 9: ...gine must be filled with the correct grade of oil and petrol before starting the engine WARNING Refuel in a well ventilated area with the engine stopped Do not smoke or allow flames or sparks in the a...

Page 10: ...g to compress the washer C Pull the stop start bar towards the upper handle D Operate the starter as described above 2c Operating the Lawnmower Step 3 Mowing WARNING Always observe the strictest safet...

Page 11: ...ed of any blockage WARNING Before you remove the grass collection bag stop the engine and wait until the blade stops completely WARNING You will need garden gloves not provided and a spanner wrench to...

Page 12: ...ions and fire 2a Empty the petrol tank with a petrol suction pump if available 2b Start the engine and let it run until any remaining petrol has been used up 2c Change the oil at the end of every seas...

Page 13: ...ade sharpened balanced and mounted by an authorized service workshop For optimum results it is recommended that the blade should be inspected once a year NOTE For engine maintainance see more details...

Page 14: ...burn you The following table provides solutions to common problems encountered with the lawnmower Fault Possible Cause Solution Loud while running machine vibrates heavily Screws are loose Blade fast...

Page 15: ...extension of the guarantee period and no new guarantee will become active for the work performed or parts fitted This also applies when an on site Service is used 5 Please keep your sales receipt in...

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