Question about Mtd Yard - Man 160cc, 21" Self - Propelled Lawn Mower

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My yardman self propelled rear wheel drive mower has stopped has started locking wheels(rear) when I try to pull it backwards. I have taken gearbox apart looking for chipped gears,didn't see anything but didn't wash out grease and replace, maybe should have, checked chain box, noticed lots of gray powder, either graphite or metal powder from axile wear maybe....Still locks up???

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Posted on Jan 02, 2017

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SOURCE: Wheels do not freely roll backwards

SOUNDS LIKE THE PINONS ARE ON BACKWARDS. THE KEY SHOULD SLIDE OFF THE PINIONS WHEN PULLED BACK AND LOCK WHEN ENGAGED. YOU HAVE THE OPPOSITE PROBLEM OR ITS BACKWARDS!

Posted on Oct 16, 2008

  • 7 Answers

SOURCE: yardman push mower self propell not working

check to see if it is belt or gear driven

Posted on May 02, 2009

  • 59 Answers

SOURCE: Have honda harmony 11 HR 216 that stopped being

it has a belt look under the mower

Posted on Jun 26, 2009

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SOURCE: Yard Man 21" Mower Pull Cord Won't Retract

You will find the retractable spring is broken you can go to any lawn mower shop and buy a replace me, also Wal mart and others you will have to wind it up till rope is tight then hook to the flywheel where the slot is. cost about $10.00 also lube the center hub bearing with wd 40

Posted on Jul 16, 2009

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1 Answer

The right rear wheel intermittently locks up on my lawnmower when going forward stopping forward movement temporarily, until I move it backwards to "unlock" it. Any ideas?


There is an excellent 3 part video that may help you to fix this problem. Please see the 2nd and 3rd videos:
https://youtu.be/Vk_tpjKlbjM
https://youtu.be/DdiewLxTQDc
Things you can try:
(1) Remove casing over rear wheel drive assembly and perform a test run to assure all parts are moving as expected
(2) Lubricate the shafts with lightweight motor oil where the shaft penetrates into the gear box of each wheel
(3) Remove each rear wheel, inspect gears for damage and free movement. Grease up each drive gear and the shaft.
(4) Inspect gears on each wheel for damage.
(5) If none of the above fixes the problem, try swapping out the front wheels to the rear wheels provided the front wheels can accommodate the gearing on the rear wheels
(6) If this doesn't work try replacing the small gear assembly on the right rear wheel
These steps are illustrated in the videos.
Good luck and hope this helps.

Oct 11, 2016 | John Deere JA65 Self Propelled Mower

1 Answer

Why do my rear wheels lock up pulling machine backwards?.


your drive will driver dogs are full of dirt you need to remove both wheels and clean the dirt out the dogs are spring loaded be ready for parts to spring out maybe depends on how much dirt

Jul 05, 2014 | Troy Bilt 5.5hp Self Propelled Mower

2 Answers

Self propell not working right


Leave aside all the puffery about 3-1 and such, you described a front wheel drive (pull) walk-behind (FWD), but are asking why the rear wheels won't propel. When you push down the hand grip the front wheels should spin free. Whan you lower from wheels by releasing pressure on hand grips, turning wheels lowered to ground should propel the mower along with its unpowered rear wheels now turning be ground contact. Reminder, never, ever lift rear drive wheels of any mower off the ground while walking behind with engine running:
  1. You could be struck by blade propelled object.
  2. You could pull mower and spinning blade backward onto your feet.
  3. You could lose balance and be pulled forward in a fall.
Contemporary FWD mowers are recognized by a black chain housing on deck top leading from engine to left front of deck. RWD propelling chains are situated underneath deck so cannot be seen from above.

Jun 25, 2014 | Troy-Bilt 12AVB29Q711 TB260 21-Inch 160cc...

2 Answers

Drive wheels won't freewheel when pulling mower backwards,


pull off what looks like hub caps and check the wheel clutches

Apr 02, 2012 | Garden

2 Answers

Craftsman mower #247.887760 rear drive. rear wheels lock-up when you try to pull mower backwards


The rear wheels are locked to the drive train. To pull or push the mower, you must pull out the release probably at the back of the mower, near the transmission.
Gary

Jul 10, 2011 | Craftsman Garden

1 Answer

I bought a self propelled Toro mower and it is hard to pull backwards. I removed the plastic toe guard and that did not help. I also have a White "brand" self propelled and it is easy to pull backwards.


The self propel system uses a type of racheting pinion drive that sometimes gets greased up and wont release like it should.

You would need to remove the wheels and pinions and look at the shaft ends for a key, a ball and a spring. This is the "pawl" that locks the wheels going forward and rachets when the wheels go backwards.

Clean up the parts of all the aluminum colored grease and reoil with something lighter. 3 in 1 would do nicely. Reassemble.

Now the next time you start going backwards and it jams...just push the mower forwards slightly without engaging the drive and see if the unit doesnt free itself.

Good luck and be careful!

Jul 19, 2010 | Toro Garden

1 Answer

Self propelled stops working well mowing, I


turn it off,let the drive handle go,pull mower backwards.does it lock the back wheels?if you push it forward,can you hear a clicking noise from the wheels?you should do.lift mower,spin back wheel,should either lock,or click,depending which way you spin it.they have spring loaded pawls that drive the wheel.usually easy to fix.usually dirt,or too much grease.take wheels off,have a look

Jul 04, 2010 | Troy Bilt 5.5hp Self Propelled Mower

2 Answers

Front wheels lock up when pull mower backwards


Typically self-propelled mowers are propelled using the front wheels, which only turn forward. Pulling the mower back while the front wheels are turning will damage the drive gears. It's best to raise the front wheels slightly off the ground before pulling back.

Mar 24, 2010 | Troy Bilt 5.5hp Self Propelled Mower

1 Answer

What is causing slipping of rear right wheel on


most likely the gears that are inside the wheel hubs.

Jul 09, 2009 | Garden

1 Answer

Wheels do not freely roll backwards


SOUNDS LIKE THE PINONS ARE ON BACKWARDS. THE KEY SHOULD SLIDE OFF THE PINIONS WHEN PULLED BACK AND LOCK WHEN ENGAGED. YOU HAVE THE OPPOSITE PROBLEM OR ITS BACKWARDS!

Sep 04, 2008 | Mtd 22" White Outdoor Self Propelled High...

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