20 Most Recent Black & Decker Black and Decker Mm575 18" Mulching Lawn Hog Electric Lawn Mower Questions & Answers

Before you start removing covers and panels unplug the mower. Turn the mower over and carefully try to spin the blade by hand. Your checking to where the issue is most likely to be. Does the motor sound different when you pull the Start trigger? If it sounds a lot faster than normal, it could be an issue between the motor and gearbox. Does the blade spin really easily and feel like it's not bolted down? Does the blade not turn at all like it's 'locked' or 'jammed'? - A loose or floppy blade is commonly the centre mount bolt for the blade is loose or the blade isn't seated correctly. - A 'locked' blade could be a gearbox or a motor issue.

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You've either broke the motors housing moving the motor out of alignment or the impact on the blade has snapped the drive belt by the sudden torque or it's been jerked off by the sudden stop of the blade it's been yanked off the drive pulleys and the nose is the motor running free with no blade resistance you will need to open up and inspect the drive belt assembley system the blade drive shaft pulley access area and the motor access area to either replace the broken belt or refit the belt if it's not been chewed or damaged by the free spinning motor pulley the smoke it was proberbly the belt rubbing against the motors drive pulley or wrapping up around it burning it through friction Or your broke the motors drive shaft HOUSING allowing the driving motor and pulley to become misaligned dropping drive belt off The motor funny noise if a banging around sound then is was the still running motor pulley is bouncing around and rubbing against the deck ect. Causing the smoke if this has happened the impact with the stone has caused a kickback effect on the motor twisting it out of its housing breaking it's secure mounts meaning the decks motor is loose the housing has gone, the MOWER extremely dangerous as the motor can at the speed it's running at 3000rpm it will chew thought the rest of the deck in a matter of seconds throwing and ripping itself from the machine sending chunks of broken deck and the motor flying in all DIRECTION possibly causing injuries to any one within range and as the wires rip apart and a possible nasty and even fatal electric shock please for your own safety do not use the lawnmower Until it's been inspected by qualified personnelIt is highly unsafe and should either be repaired or replaced which ever the cheaper Advice to check the area your cutting esp when using a high impact resistant plastic deck lawnmower for hidden foreign objects large and small stones as the small ones can be thrown by the blade like a "bullet"! small toys esp metal cars etcetra will make excellent shrapnel and cut the fabric grass box to ribbion it's also you if directly in the debris path Also not good for your lawnmowers blade or deckPavement slabs are defiantly known as the silent MOWER DESTROYER YOU can't hear it, as you aproch you can't see it before it's too late, there's a Loud bang the MOWER stops that exact same instant and the MOWER IS NOW KNOWN AS BROKEN "!Esp on petrol mowers slabs tend to stop the MOWER dead bending the crank shaft the mowers with a slightly bentccrank will jump Round like it's on steroids or vibrate so badly it will shake itself apart as well as leaving a, very odd sensation in your arms Deposits from animals are just nasty to clean off the deck and wheels so I clear them up too if THERE are any just in case

does it have gas?

Do you need a new motor or is it just the brushes which need replaced? Firstly unplug the machine and disassemble the motor or gain access to the brushes, found on either side of the motor at one end only. Remove the brushes (they usually unscrew behind the black caps), if they are burnt or look badly worn or are less than 5-8mm in length, replace them. The BRUSH is the black carbon rectangle of hard material at the end of the brass spring. New brushes are often 25-30mm in length as a guide. Based on that information you then decide if new brushes or a new motor is the answer. A quick tip; If you remove the motor and clamp it safely, connect the correct voltage to the motor lead and switch on long enough to establish if it is working and running freely. If you cannot find the parts locally, try www.4ourhouse.co uk.

Take off the black plastic hood (4 screws), clean debris and check connections to, and condition of, shunted brushes. They're available from B&D parts for a few bucks.

Is the gas tank is empty. Old gas can also lead to problems starting, There is a product you can add for old gas issues see your DIY or hardware store this happens often if you have last season's gas in your mower, drain your fuel tank and fill with fresh gas. some other thoughts might be Loose, Dirty or Disconnected Spark Plug Check it out, clean off debris, re-connect and tighten. Dirty Air Filter Clean or replace. Fuel Not Reaching the Engine Tap the side of the carburetor to help the flow of gas. If this doesn't work, you might need a new fuel filter.

if there are no adjustments at the rear wheels install new wheels to accommodate mowing hieght

Not easy to explain. suggest next door neighbour may help. Don't guess, the result could be nasty.

check the cord for cuts then check the safty engagement on the handle and make sure it disengages to cut thats about all you can do turn blade make sure turn freely not plug in after you will have to take it in

Steve it sounds like the brushes located at the top of the motor. They need replacing.

being electric, I tend to think maybe the electric plug may be in the receptacle backwards.

You can use a pipe wrench on the shaft and a regular wrench on the nut. Disconnect your spark plug and tip the mower onto it's left side. You will have to use your left hand to go down through the mower shoot to hold the pipe wrench and your right hand to unbolt the the blade attaching bolt, it should come off immediately.
Remember you may have to purchase a new blade holder, since your problem shouldn't occur if your blade holder was OK. GOOD LUCK.