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 Use of safety gloves is imperative while performing adjustment or repair of the machine 

Only use original spare parts (see Trenchex Power Products Ltd. webside). 

 

Stop the engine and disconnect and earth the spark plug before any  

repairing or maintenance operations. 

 

20 

MAINTENANCE 

 
 

Complicated operations –not listed here below- must be carried out by a specialized technical 
assistance centre. 

Regular and careful maintenance is essential for keeping the safety level and original performance of 
the machine unchanged in time. 

When tipping the lawnmower for access to carryout repairs, empty the f uel tank. Never tip the lawnmower 
more than 90degrees in any direction and never leave the mower tipped for any length of time as oil can 
drip into the air cleaner of the engine, thus causing a starting 
problem. 

A-

 

Oil service 

Check  the  oil  level  daily  before  starting  the  engine  and  ensure  the  correct  oil  level  is  maintained.  Change  the 

engine oil after 8 hrs of operation and then every 50 hrs or every season depending on usage. 

B-

 

Spark plug 

The spark plug should be changed every 100 hours or every season depending on use. Check the plug before each 
use and plug gap reset once a season. Refer to the engine manual for the correct plug type and gap specifications. 

C-

 

Air cleaner 

The air cleaner must be changed. Clean every few hours under extremely dry and dusty conditions as poor 
performance and flooding usually indicate the air cleaner should be cleaned / changed. 

D-

 

Engine cleaning 

Clean the engine regularly with a dry brush or cloth. Ensure you keep the blower housing area free from debris, 
grass and dust to allow proper air circulation when is essential for engine performance. Also ensure you remove a 

ll grass, dirt and debris from the muffler area. . 

1.

 

Remove the oil dipstick 

2.

 

Remove the pater air filter to avoid it seaking up petrol. 

Summary of Contents for LK 41 B&S

Page 1: ...41 99 cc OHV LK41SP 99 cc OHV LK46SP 139 cc OHV LK56SPHWSM 173 cc OHV mod TZ41PB BS450E TZ46SB 139 TZ46PB BS450E TZ46SB BS450E TZ51SF BS625EX TZ51SF 173 TZ41PB 99 TZ41SB 99 TZ46SB 139 TZ56SF 173 READ...

Page 2: ......

Page 3: ...uired for assembly Assembly of the handle Cutting height adjustment Operating 16 Grass box assembly Grass box removal How to fix the mulching plug Operating without a grass collecting box Side dischar...

Page 4: ...se and extreme caution should be exercised at all times A lawnmower motor is a machine designed to cut and collect depending on equipment grass from private ornamental gardens Any other use not expres...

Page 5: ...ative during operation or while performing an adjustment or repair to the machine to protect eyes from foreign objects that could be thrown from the machine in any direction Also wear steel toe capped...

Page 6: ...is running Do not smoke near the machine All cigarettes and other sources of ignition must be removed from the area OPERATION WARNING DANGER Do not operate the engine in a confined space where danger...

Page 7: ...d operating the lawn mower If lawn mower starts to vibrate abnormally check immediately Stop the engine and disconnect the spark plug wire make sure that all moving parts have come to a complete stop...

Page 8: ...Steel Net weight 20 kg 30 50 kg 22 kg 26 kg A Weighted emission Sound Pressure Level or equivalent at the operator s working place determined in accordance with ISO 5395 1 2013 A1 2018 Annex F 80 8 d...

Page 9: ...29 kg 35 kg 21 kg 25 kg A Weighted emission Sound Pressure Level or equivalent at the operator s working place determined in accordance with ISO 5395 1 2013 A1 2018 Annex F 84 dB A 84 1 dB A 82 2 dB A...

Page 10: ...kg 25 kg 30 50 kg 41 kg A Weighted emission Sound Pressure Level or equivalent at the operator s working place determined in accordance with ISO 5395 1 2013 A1 2018 Annex F 82 2 dB A 82 2 dB A 82 dB A...

Page 11: ...rs and long sleeved shirts when operating the machine 8 WARNING Oil tank and fuel tank are clearly seperated This lawnmower is sold without fuel and oil Ensure machine is oiled and fuelled before star...

Page 12: ...function if the mower has this function optional depending on models push the traction lever against the handle and keep it in this position The mower starts to move forward To stop the self propellin...

Page 13: ...Lower handle 8 Grass collecting box 9 Self propelling cable not valid for LK41 LK46 10 Back wheel 11 Cutting deck 12 Heights adjustment arm 13 Front wheel 14 Air filter 15 Primer 16 Spark plug and cap...

Page 14: ...including the instruction manuals and tools where applicable and and store safely for future reference Cut along the corners of the carton and lay flat Remove any packing material and roll or slide t...

Page 15: ...the upper handle Raise the complete handlebar whilst depressing both levers to release the starter handle taking care not to crease the control cables at the pivot point Attach the control cables to...

Page 16: ...ever is situated above the right rear wheel To adjust the cutting height pull the height adjustment lever out and away from the lawnmower and move forward or backwards into another slot depending whet...

Page 17: ...g Lift the rear flap deflector and remove the grass collector from its place Release the rear flap deflector Empty the collection bag C How to fix the mulching plug only for model LK51SPHWSM LK56SPHWS...

Page 18: ...or is always folded against the deck E Side discharge only for model LK51SPHWSM LK56SPHWSM Lift the side discharge shutter on the cutting deck Attach the side discharge shutter in place in the hooks p...

Page 19: ...d primer on the front left side of the air filter 3 Attach the spark plug ensuring the metal cap is fastened securely to the metal tip on the spark plug 4 The flywheel brake lever operators presence c...

Page 20: ...ontinues to rotate after the engine is switched off WARNING The OPC handle is a safety device Never attempt to bypass its operations The blade will be rotating when the engine is running D Self propel...

Page 21: ...heck the oil level daily before starting the engine and ensure the correct oil level is maintained Change the engine oil after 8 hrs of operation and then every 50 hrs or every season depending on usa...

Page 22: ...rer warrants the product against faulty materials and workmanship for a period of 2 years from the date of first purchase The warranty is only valid when the product is used in domestic situations com...

Page 23: ...ry model TZ51SF 173 References TOT911314 TOT911497 Cutting 510 mm LK 41 99 cc OHV equipped with engine 99 cc Factory model TZ41PB 99 References TOT911413 Cutting 410mm LK 41 SP 99 cc OHV equipped with...

Page 24: ...ise power level LWA m 93 9 dB A Guaranteed noise power level LWA g 96 dB A For model LK 51 SP HW SM B S TZ51SF BS625EX Measured noise power level LWA m 95 6 dB A Guaranteed noise power level LWA g 98...

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