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Engaging blades kills engine

#1

C

CharlesHowse

Hi, Charles from TN here.
My Ariens A21AH2 is giving me a big headache. Several years ago I disabled the seat safety switch and it ran perfectly for a long time.
A week or so ago I replaced the drive belt. No problems with the routing, just took a little while.

My grandson was mowing 2 days ago and suddenly the blades quit spinning, and the motor started backfiring and missing, and finally quit.
Apparently, in the time between disabling the seat switch and 2 days ago, the cable from the seat switch (which I had tucked into the battery compartment) had slipped out of there and down into the belt and gears just below, and was cut and mangled, connector and wires both gone.
There's nothing wrong with the belt or deck, I disconnected the belt to double-check., but the engaging the blades kills the engine.
Got's to be related to a safety switch, I'd say.

I assume that's the issue with the blades not starting, what's left of the seat switch is sending a ground to the magneto as a safety measure.

I've been on YouTube all day yesterday and today, and haven't found a fix.
How can I verify and repair/disable this issue?

Thanks,
Charles


#2

B

Born2Mow

How old is your grandson ?


#3

C

CharlesHowse

Born2Mow said:
How old is your grandson ?
Click to expand...
Is your question relative to my question?


#4

B

Born2Mow

No one here is going to help you defeat safety measures that help protect young and innocent operators like your grandson. Most any profession your grandson might dream of, from policeman to surgeon, would be completely ended by the loss of just 2 fingers. And mower accidents happen to children almost 25 times every day.

Try reading some of the stats on this web page.... https://www.whackyourweeds.com/lawn-mower-accident-statistics/


#5

B

bertsmobile1

Charles,
With all due respect & not trying to be agressive .

We are here to help people with their lawn equipment to make their lives easier
Not to assist people injuring themselves or others .
IF you want assistance then please just answer the questions.
As a rule no one here will tell any one how to bypass the mowers safety system .
The logic behind this is if you do not have sufficient understanding about how the system works then you should not be trying to dissable it .

There is NEVER a justified reason to disable a seat switch .
I do not agree with the reasoning behind most of the safety devices and firmly believe that people should be allowed to chop their fingers off , loose hands & feet .
Then everyone would know that a mower is a dangerous tool & not a toy for the kids to play with because everyone would know some one missing a lump of their anatomy.
See I believe in evolution so idiots should suffer the consequences of their own stupidity and the inferiour should be allowed to perish .

The only problem is it is often the innocent who end up suffering, like the children who side of dads / grandads lap then put a foot on top of the pulley cause the guard has been removed then have the belts & pulleys rip their bare foot to bits.

From what you have written I for one imagine that your grandson is less than the 40 kg ( or there abouts ) needed to trip the seat switch or is so short that he has to sit on the very edge of the seat in order to reach the pedals
In either case it is unsafe for him to be operating the mower.
Down here farmers can get 5 years gaol and / or loose custody of their children if a child under 12 is allowed to operate any piece of farm equipment.
And they are seriously talking about extending this to quad bikes & motorcycles due to the number of kids under 12 seriously injured or killed using this gear every year.
This has already been done for horse riding.
A child ( under 12 ) must have a proper fitting childs saddle & must always be within the sight of a responsible adult when on a horse .


#6

S

slomo

1.Fix ALL of the safety switches. Put the machine back like it was off the dealers floor.




This one, accidentally backed over with mower. Blades are supposed to disengage in REVERSE.


slomo


#7

StarTech

StarTech

We would need the 9-11 digit model from the serial number tag to even look up the equipment. I only found three cross link models with the A21AH2 desingnation and I don't know if either one of the is even the right one.

936073 (960460054-00) 42" Automatic Tractor
936073 (960460054-01) 42" Automatic Tractor
936073 (960460054-02) 42" Automatic Tractor

All three of the above uses the same rear harness. Ariens PN 21548384 (Husqvarna PN 532400449) and it is relative low cost depend which one you purchase and install. At https://www.searspartsdirect.com it is only $20 plus shipping currently.
1624879609035.png


#8

B

Born2Mow

bertsmobile1 said:
Charles,
With all due respect & not trying to be aggressive.
Click to expand...
You think I'm aggressive, just wait until DFACS knocks on your door with the police in tow. Those people are more aggressive than the IRS. I know, I used to work with them.

All I'm asking is that you re-think your safety measures for the sake of your grandson. Not my grandson, YOURS.


#9

StarTech

StarTech

Born2Mow said:
You think I'm aggressive, just wait until DFACS knocks on your door with the police in tow. Those people are more aggressive than the IRS. I know, I used to work with them.

All I'm asking is that you re-think your safety measures for the sake of your grandson. Not my grandson, YOURS.
Click to expand...
Apparently they have never heard of me killing and BBQ one of my kids here in Tennessee but of course it is just poopulation control. Yes I said poopulation control as I get tired of all their poop. And I got a BBQ schedule for the 4th so I just now trying to fiqure which kid it is going the be this year.


#10

Q

qmark

bertsmobile1 said:
Charles,
With all due respect & not trying to be agressive .

We are here to help people with their lawn equipment to make their lives easier
Not to assist people injuring themselves or others .
IF you want assistance then please just answer the questions.
As a rule no one here will tell any one how to bypass the mowers safety system .
The logic behind this is if you do not have sufficient understanding about how the system works then you should not be trying to dissable it .

There is NEVER a justified reason to disable a seat switch .
I do not agree with the reasoning behind most of the safety devices and firmly believe that people should be allowed to chop their fingers off , loose hands & feet .
Then everyone would know that a mower is a dangerous tool & not a toy for the kids to play with because everyone would know some one missing a lump of their anatomy.
See I believe in evolution so idiots should suffer the consequences of their own stupidity and the inferiour should be allowed to perish .

The only problem is it is often the innocent who end up suffering, like the children who side of dads / grandads lap then put a foot on top of the pulley cause the guard has been removed then have the belts & pulleys rip their bare foot to bits.

From what you have written I for one imagine that your grandson is less than the 40 kg ( or there abouts ) needed to trip the seat switch or is so short that he has to sit on the very edge of the seat in order to reach the pedals
In either case it is unsafe for him to be operating the mower.
Down here farmers can get 5 years gaol and / or loose custody of their children if a child under 12 is allowed to operate any piece of farm equipment.
And they are seriously talking about extending this to quad bikes & motorcycles due to the number of kids under 12 seriously injured or killed using this gear every year.
This has already been done for horse riding.
A child ( under 12 ) must have a proper fitting childs saddle & must always be within the sight of a responsible adult when on a horse .
Click to expand...
Where are you with these rules?


#11

N

nobot

Good grief. The man never said his grandson was a child. Did you consider that he could be 70 years old, with a 30 year old grandson?


#12

N

nobot

Don't misunderstand me. I believe in the safety measures, that they are there with good reason. But if the grandson is 30 years old, he's old enough to make up his mind about losing appendages. The grandson may be 12 years old. My point is: Don't jump to conclusions.


#13

cpurvis

cpurvis

CharlesHowse said:
Hi, Charles from TN here.
My Ariens A21AH2 is giving me a big headache. Several years ago I disabled the seat safety switch and it ran perfectly for a long time.
A week or so ago I replaced the drive belt. No problems with the routing, just took a little while.

My grandson was mowing 2 days ago and suddenly the blades quit spinning, and the motor started backfiring and missing, and finally quit.
Apparently, in the time between disabling the seat switch and 2 days ago, the cable from the seat switch (which I had tucked into the battery compartment) had slipped out of there and down into the belt and gears just below, and was cut and mangled, connector and wires both gone.
There's nothing wrong with the belt or deck, I disconnected the belt to double-check., but the engaging the blades kills the engine.
Got's to be related to a safety switch, I'd say.

I assume that's the issue with the blades not starting, what's left of the seat switch is sending a ground to the magneto as a safety measure.

I've been on YouTube all day yesterday and today, and haven't found a fix.
How can I verify and repair/disable this issue?

Thanks,
Charles
Click to expand...
Can you get a new wiring harness for the mower? It may not be much fun to install but that would restore it to working condition.

If that's not in the cards, a wiring diagram, some wire and connectors and sweat will get you back up and running but I wouldn't know how to tell you how to do that without the machine right in front of me.

I don't see bypassing the safety switches as any more dangerous than having the kid operate a piece of old, or even new, equipment that has none of that safety equipment on it.


#14

B

bertsmobile1

nobot said:
Don't misunderstand me. I believe in the safety measures, that they are there with good reason. But if the grandson is 30 years old, he's old enough to make up his mind about losing appendages. The grandson may be 12 years old. My point is: Don't jump to conclusions.
Click to expand...
No body jumped to any conclusions .
That is exactly why he was asked in the first response " how old is your grandson"
However the reply was basically " None of your business"
From which one could easily jump to the conclusion he was trying to hide the fact the grandson was a small child who should not be operating a ride on mower .

You might also like to notice that Charles never responded to the thread again .
You can draw what ever conclusions from that you wish to


#15

N

nobot

It's nobody, and it truly is none of your business. Your question is outside the scope of this forum. Help the man fix his mower. Your easily jumped to conclusion is just speculation, period. It does nothing but allow you to create some drama and to be condescending and judgmental. I don't blame the guy a bit for not responding. Let's fix some mowers.


#16

M

mmoffitt

Yes! Safety first with whatever you are doing!


#17

B

bertsmobile1

nobot said:
It's nobody, and it truly is none of your business. Your question is outside the scope of this forum. Help the man fix his mower. Your easily jumped to conclusion is just speculation, period. It does nothing but allow you to create some drama and to be condescending and judgmental. I don't blame the guy a bit for not responding. Let's fix some mowers.
Click to expand...
You are welcome to proffer what ever advice you feel appropriate
As Charles did not provide the information asked then I have no intention of offering any more to him
And this happens regardless.
If I ask for some information & it is not given then I stop providing any help no matter what the problem is or the circumstances are.
And I did not ask for the grandkids age
And I am not making a song & dance about it
And Star in post # 7 told Charles what he thought the replacement harness part number was and where to get it.
For which you might have noticed no thanks were given

From that point there was no need for any further comment .
But for some reason others seem to think it is their duty to take offence on Charles's behalf

And Today I fixed 3 mowers with my own hands plus offered FREE help to 11 more on this forum .
How many have you done ?


#18

StarTech

StarTech

qmark said:
Where are you with these rules?
Click to expand...
From what I gather Bert is in Australia or somewhere in that area of the world. Just not sure, never asked him.


#19

StarTech

StarTech

And yes I did my research and found the possible harness which costs less than the individual parts. But OP never posted the actual model number which is different than the layman version that was posted.

And no I am not instructing anyone on how to bypass safety measures. I do it for testing here with extreme caution but I restore the safeties after testing. In this case I have not even found the seat switch connector housing separately anywhere yet plus you would need the wire terminals and the proper crimping tools. The pair crimpers (2 each) that I have that does the factory style crimps cost me $70 each and I even had one of the dies modified for doing the male Delphi terminals that I work with here.

And personally YouTube videos will get you in trouble if you view the wrong ones.

And believe me equipment operators and owners do very stupid things like the one that duct taped his walk behind mower's blade on. I would have never thought someone would be that dumb until I personally seen it. And yes I have seen a 10 yr old operating a massive farm tractor in Alabama years ago.


#20

N

nobot

This isn't a competition, to me. If you want to toot your own horn, Bert, go ahead. I imagine we're all proud of you for your accomplishments. That's speculation, but not an accusation. I have offered advice to a couple of people - I'm no expert at this, and have never claimed to be one. If I feel like I might be able to help someone, I write something. I found it offensive and outside the scope of this forum (more speculation) that the OP was getting grief about his grandson - that's all. I agree completely that safety is a primary concern in life. I'm all for protecting the innocent, too. It appeared to me that the OP was being shamed and guilted unnecessarily because of someone's speculation, and I thought it detracted from the spirit of the forum I want to be a member of. If I have offended anyone, so be it. I feel that accusations based on speculation and assumption lack substance, so I spoke up, figuratively. Again: Let's fix some (more - go, Bert!) mowers. Truth be told, my original intent was to get a laugh about the absurd idea that some innocent 30 year old grandson might hurt himself because of his grandfather's neglect. Sue me.


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