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Bäumr-AG Petrol Powered Lawn Mowers 

E&OE 

©2017 Bäumr-AG 

General Fuel Safety 

Petrol/fuel/gasoline is extremely 
flammable – keep clear of 
naked flames or other ignition 
sources. 

  Do not spill fuel. If you spill fuel, wipe it 

from equipment immediately – if fuel 
gets on your clothing, change them 
immediately 

  Do not smoke near fuel. 

  Always shut off the engine before 

refuelling. 

  Do not refuel a hot engine. 

  Open the fuel cap carefully to allow any 

pressure build-up in the tank to release 
slowly. 

  Always refuel in well ventilated areas. 

  Always check for fuel leakage. If fuel 

leakage is found, do not start or run the 
engine until all leaks are fixed. 

General Electrical Safety 

  Inspect electrical equipment, extension 

cords, power bars, and electrical fittings 
for damage or wear before each use. 
Repair or replace damaged equipment 
immediately. 

  Ensure all power sources conform to 

equipment voltage requirements and are 
disconnected before connecting or 
disconnecting equipment. 

  When wiring electrically powered 

equipment, follow all electrical and 
safety codes. 

  Wherever possible, use a residual 

current device (RCD). 

  Electrically grounded equipment must 

have an approved cord and plug and be 
connected to a grounded outlet. 

  Do not bypass the on/off switch and 

operate equipment by connecting and 
disconnecting the power cord. 

  Do not use equipment that has exposed 

wiring, damaged switches, covers or 
guards. 

  Do not use electrical equipment in wet 

conditions or damp locations. 

  Do not use electrical cords to lift, move 

or carry equipment. 

  Do not tie electrical cords in tight knots 

and ensure electrical cords do not 
present trip hazards. 

General Service Information 

  Have the equipment serviced or repaired 

at authorized service centers by 
qualified personnel only. 

  Replacement parts must be original 

equipment manufacturer (OEM) to help 
ensure that equipment safety is 
maintained. 

  Do not attempt any maintenance or 

repair work not described in this 
instruction manual. 

  After use, the equipment and 

components may still be hot – allow the 
equipment to cool and disconnect spark 
plugs and/or electrical power sources 
and/or batteries from it before making 
adjustments, changing accessories or 
performing repair or maintenance. 

  Do not make adjustments while the 

equipment is running. 

  Perform all service related activities 

under suitable conditions, such as a 
workshop etc. 

  Replace worn, damaged or missing 

warning/safety labels immediately. 

  Do not clean equipment with solvents, 

flammable liquids or harsh abrasives. 

 

  DANGER   

Running combustion engines in confined areas 

CAN KILL IN MINUTES. Engine exhaust fumes 

contain carbon-monoxide – a deadly gas that you 

cannot smell or see. 

 

 

 

NEVER run a combustion engine in confined areas 

EVEN IF windows and doors are open. ONLY run 

petrol engines OUTDOORS and away from doors, 

windows and vents.

 

Do not operate the equipment in hazardous locations, 
such as where there may be a risk of fire or explosions 
from flammable liquids, gases or dust. 

Do not operate the equipment in confined areas where 
exhaust gases, smoke or fumes could reach dangerous 
concentrations. 

Do not refuel a combustion engine while it is running, on 
or hot. 

Never smoke while refuelling combustion engines or 
handling flammable substances. 

For generators, the electrical output is potentially lethal 
and must only be connected to a fixed electrical 
installation by an appropriately licensed person. 

Be aware that the equipment may include hazardous 
components, such as blades, hot surfaces and moving 
parts. 

Handle any flammable substance with extreme caution. 

 

Summary of Contents for 660EX/MOWPSH6NDBMRADJF

Page 1: ...RE REFERENCE Products covered by this manual may vary in appearance assembly inclusions specifications description and packaging The product is NOT supplied with engine oil although traces of oil from the manufacturing process may be present It is essential to add adequate engine oil of the correct type to the engine before use see Checking and Changing Engine Oil Failure to add engine oil will vo...

Page 2: ... not intended for use by persons with reduced physical sensory or mental capabilities You must wear appropriate protective equipment when operating servicing or when in the operating area of the equipment to help protect from serious injury including eye injury inhalation of toxic fumes burns and hearing loss Always wear eye protection Protective equipment such as respirators non skid safety shoes...

Page 3: ... serviced or repaired at authorized service centers by qualified personnel only Replacement parts must be original equipment manufacturer OEM to help ensure that equipment safety is maintained Do not attempt any maintenance or repair work not described in this instruction manual After use the equipment and components may still be hot allow the equipment to cool and disconnect spark plugs and or el...

Page 4: ...r 12 Adjusting Cutting Height 13 Using the Grass Catcher 13 Using the Mulching Attachment 13 Using the Side Discharge Attachment 14 Using the Self Propel Function 14 Using the Deck Wash Function 14 Mowing Guidelines 15 Maintenance 16 Maintenance Schedule 16 Checking and Changing Engine Oil 17 Checking Cleaning or Replacing the Air Filter 18 Air Filter Inspection and Cleaning 18 Spark Plug 19 Spark...

Page 5: ...0EX MOWPSH6NDBMRADJF 16 139cc 4 Stroke 670EX MOWPSH6KSBMRADJF 16 139cc 4 Stroke Electric Start 690SX Series II MOWPSHBMRA6DW 16 139cc 4 Stroke Self Propelled 700SX Series II MOWPSHBMRA6CH 16 139cc 4 Stroke Self Propelled 750SX MOWPSHBMRA8CD 18 165cc 4 Stroke Self Propelled 760SX Series II MOWPSHBMRA9CH 19 165cc 4 Stroke Self Propelled ...

Page 6: ...Mowers E OE 2017 Bäumr AG 6 770SX Series II MOWPSHBMRA9BS 19 140cc 4 Stroke Self Propelled 880SX Series II MOWPSHBMRA1CH MOWPSHBMRB1CG 21 218cc 4 Stroke Self Propelled 890SX Series II MOWPSHBMRA1BS 21 163cc 4 Stroke Self Propelled ...

Page 7: ...ection shows typical major components common to most 4 stroke petrol powered lawn mowers the position of some components may also vary between models No Name No Name 1 Deck 13 Air Filter Cover filter inside 2 Fuel Filler and Tank 14 Engine Safety Bar where applicable 3 Handle 15 Fuel Primer where applicable 4 Choke or Throttle or Engine On Off Control 16 Side Discharge Chute where applicable 5 Exh...

Page 8: ...rs D out to unlock them and unfold the handle then push the levers back into the locked position On some models that do not have adjustment the top handle sections are attached directly to the lower sections using screws and nuts similarly to the procedure below 3 Ensure that any cables wires are running along the top of the handle then place the ends of the handle in position with the mounting br...

Page 9: ...e refuelling Adequately fill the fuel tank with the correct fuel type Use non ethanol unleaded petrol higher RON values will provide best engine performance Do not use old or contaminated fuel To fill or top up fuel 1 Place the machine in an upright position on a flat and level surface 2 Clean the machine around the fuel filler so that no dirt or other material enters the engine when the cap is re...

Page 10: ... If the machine is equipped with a choke or cold or cold start throttle setting and the engine is cold place the throttle in that position If the engine is warm or the ambient temperature is high place the throttle somewhere in the run region generally just off the stop position is good If the machine has no choke place the throttle in the start or run position 3 IGNITION If the machine has an eng...

Page 11: ...el mixture becomes If the engine is being permanently operated at high altitude it is recommended to have an authorized service center make the necessary carburettor adjustments If the engine is used occasionally at altitude not extreme altitudes no adjustments should be required however a slight decrease in engine performance can be expected Temperature If the engine is being used in extremely co...

Page 12: ...icient speed to provide the desired cutting action This may vary on the type of grass grass height and density etc After use it is recommended to clean the mower of excessive grass cuttings dirt etc Some models feature a deck wash which can be used to simplify cleaning the underside of the mower deck The lawn mower may have additional features to just cutting grass For example mulching side discha...

Page 13: ... hold it in this position 2 Insert the catcher B with open end toward the mower and hook the catcher fingers C onto the mounting points D then lower the rear guard so it rests on the top of the grass catcher To remove the grass catcher lift the bottom edge of the rear guard then lift the grass catcher to unhook it from the mower Once unhooked pull the grass catcher out and lower the rear guard Usi...

Page 14: ...drive activation bar is pulled in the drive gears will engage which can make it difficult to move the mower It is recommended to release the drive activation bar when changing direction reversing etc To activate the self propel function hold the drive activation bar against the handle B To deactivate the function release the bar Using the Deck Wash Function Some models may have a deck wash functio...

Page 15: ... Avoid overly steep slopes when mowing and when mowing on an incline mow across the face of the incline not up and down it Do not start self propelled models where applicable with the drive mechanism engaged Use caution when reversing or pulling the equipment towards you and changing direction After stopping the engine always allow all moving components blades etc to stop moving before moving lift...

Page 16: ...uired Proper care and maintenance ensures best performance and longest service life The maintenance schedule below specifies preventative maintenance checks and necessary maintenance tasks and how often they should be performed Harsh operating environments such as extreme temperatures dust etc may necessitate more frequent maintenance Maintenance frequencies are based on general factors including ...

Page 17: ...l enters the engine when the cap is removed 3 Remove the oil filler cap dipstick rotate left until fully unscrewed or for bayonet style caps unlocked then a Wipe the dipstick clean with a piece of cloth or paper b Insert the dipstick back into the oil filler but do not screw lock it in c Remove and inspect the dipstick the oil level is determined by where oil can be seen on it Depending on model t...

Page 18: ...ping the filter element against a hard surface and brushing the pleats using a soft brush may also help remove debris from the filter For foam filters place a few drops of clean engine oil on the filter then squeeze it a few times to spread the oil through the filter material and remove any excess oil It is recommended to clean the air filter cover and air intake assembly of any dirt cuttings etc ...

Page 19: ...g slid between the electrodes B this means the measurement is fairly accurate 2 Adjust the gap to within specification see Specifications If the gap needs to be reduced gently tap the electrode as required If the gap needs to be increased use pliers to gently pull the electrode as required 3 Measure the gap again and ensure it is within the specified range before re installing the spark plug Spark...

Page 20: ...d Clean and check the grass catcher for any damage replace damaged parts Allow the grass catcher to dry thoroughly before storing to prevent mildew or deterioration of the catcher netting where applicable Ensure that all control cables levers switches etc are clean and operate normally and smoothly Transportation and Storage Always ensure that the machine is cool enough to touch before transportin...

Page 21: ...ls that do not have spigots on the handle mounting brackets ensure the handle is installed against the outer face of the mounting brackets Difficulty starting the engine Possible Fault Action Lack of fuel Check that there is fuel in the tank and the fuel system is primed if applicable To further check if fuel is reaching the carburettor remove the carburettor drain plug and check if fuel drains En...

Page 22: ...duced engine speed power during use Possible Fault Action Blocked air filter Check and clean air filter Carbon build up in engine and or entry to exhaust silencer Remove the engine cylinder head and clean any carbon from the combustion chamber For the exhaust silencer remove it and clean any carbon deposits from the exhaust entry port Carbon build up on spark plug Remove the spark plug and clean a...

Page 23: ...der Fuel Non ethanol unleaded petrol higher RON values provide best performance Oil Type SAE 10W 30 automotive engine oil recommended for general use Oil Capacity Approximately 0 47l always check level 165cc Engines Type 4 stroke single cylinder Fuel Non ethanol unleaded petrol higher RON values provide best performance Spark Plug F7TC F7RTC Spark Plug Gap 0 7 to 0 8mm 0 028 to 0 032 Valve Clearan...

Page 24: ...n or replace with the date as required Note For Briggs Stratton engines refer any engine warranty claims servicing or repairs to an official Briggs Stratton dealer Date Date Date Date Date Replace Engine Oil Replace Spark Plug Replace Air Filter Replace Fuel Filter Replace Fuel Lines Clean Fuel Tank Check Adjust Valve Clearance De coke Combustion Chamber Date Date Date Date Date Replace Engine Oil...

Page 25: ...ur specific application or your description of the application Be sure to attain third party approval for your application from a qualified specialist before use regardless of prior assurances by the retailer or its representatives This product is not intended for use where fail safe operation is required As with any product take an automobile aircraft computer or ball point pen for example there ...

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