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Toro SS 4225 starter p/n 1339828 repair manual

#1

G

grc212

My starter on my Toro SS4225 can't turn the engine over (weak). Engine is free but putting 12V to the starter removed from engine bendix doesn't extend. I'm looking for a repair man for starter or an exploded view of disassembled starter. I see toro has superseded the starter with p/n 136-7880. I'm wanting to take apart and clean and lube the starter but don't want to destroy it in the process. TYIA


#2

StarTech

StarTech

Are you referring to the Kawasaki FR600 direct drive starter or it the solenoid version? The Denso solenoid shift version is a lot hard to disassembly and even the Kawasaki FR600 service doesn't cover it very well. Now the direct direct version is covered fair well in the service manual.

I just took apart the Denso solenoid shift version the hardest part was removing the retaining without it going flying across the shop but it will be the same for the direct drive too.


#3

R

Rivets

I’m pretty sure that this starter is going to be for a Toro engineered engine built by Loncin. If I’m correct there are NO replacement parts available for this starter, except for the starter drive. If the starter really spins, but the bendix doesn’t kick out, you may just have to replace the drive and not tear into the starter. Because there are no other parts available, I wouldn’t advise you to take it apart. I’ve rebuilt a few of these starters, and have found a few used parts in my I should save this cabinet, but most times it is cheaper to replace than repair. My recommendation is to see if your local Toro shop would try to replace the drive, but if it failed to solve the problem you would purchase a new starter through them. Just my opinion.


#4

B

bertsmobile1

And buy a starter from a real mower parts retailer not of ebay, amazon or craigs.
Just about all of them are fake and will only last a short time before failing .
Got a 44 gallon drum 1/2 full of dead Chinese "EXTRA HIGH POWER " & "HIGH POWER LONG" B & S starters.
All they did was consume a drastically large amount of power, wreaking havock with batteries & charging systems till the soft soldered communicators fell apart shorting out he starter and taking the solenoids with it .


#5

StarTech

StarTech

That is why we need to the actual model and serial.

1626134328654.png
74706 came with a Kawasaki FR600V
74721 came with a Kohler 7000
74722 came with a Kawasaki FR600V
74726 came with a 2P77F
74726TA came with a 2P77F

So there is no way to sure until we had the actual model and serial numbers.


#6

G

grc212

StarTech said:
That is why we need to the actual model and serial.

View attachment 57395
74706 came with a Kawasaki FR600V
74721 came with a Kohler 7000
74722 came with a Kawasaki FR600V
74726 came with a 2P77F
74726TA came with a 2P77F

So there is no way to sure until we had the actual model and serial numbers.
Click to expand...
1626141762528.png
S/N 402271470. I have the 22.5 hp Toro(Loncin)engine. I put the starter on the bench it appears that the motor doesn't spool up fast enough to overcome the spring on the drive, compressing the spring manually the drive will engage so I will be headed to the Toro dealer for new starter. I had luck in the past taking apart B/S starters clean up and work good but not this Chinese one...


#7

StarTech

StarTech

Looking at that inertia starter. It would not be too bad to disassemble although, the starter pinion has to come off and that retaining ring is a pain to get off. Two things could be wrong either starter pinion fiction pad is worn out or the top motor bushing is worn out. Pinion and starter repair kit for pinion replacement are available but the bushing is not. I see quite a few Kohler starters with both of these issues. Most times the pinion fiction is the reason the pinion doesn't moves up. Where the bushing usually causes a dragging motor. If you taking the main motor apart just be careful of the brush springs popping out.

I just took a Denso solenoid shift starter apart this week without a manual and it is back working again. Just take your time and pay attention to the disassembly.

Starter repair kit only contains the following items which are right above the pinion.
1626173794682.png


#8

R

Rivets

Just a suggestion, but an opportunity for a learning experience. If you are purchasing a new starter, save the old one. Tear it down when you have time and see if you can find a problem and reassemble. Most common problem I’ve found is commutator is carboned up and brushes worn. Reassembly is a bit tricky and patience is needed.


#9

StarTech

StarTech

Rivets said:
Just a suggestion, but an opportunity for a learning experience. If you are purchasing a new starter, save the old one. Tear it down when you have time and see if you can find a problem and reassemble. Most common problem I’ve found is commutator is carboned up and brushes worn. Reassembly is a bit tricky and patience is needed.
Click to expand...
This is how I self taught myself most of these repairs. Everything you learn can be applied to later repairs.

It is like me getting a whole truck load of broken 2 cycles. At first I had no idea how a two worked but I did my research and hands on training/ I got about half of them repaired and sold.

Being good at sloving jigsaw puzzles helps.


#10

R

Rivets

I’ve been doing this for to many years and when it can’t be repaired I restock my “I think I should save this” cabinets and covered parts trays. (Everything is categorized and labeled, as at my age I‘ve forgotten more than I know) Not only a learning experience, but these used parts have bailed out many who come to me for a part NLA or too $$$.


#11

StarTech

StarTech

Rivets said:
I’ve been doing this for to many years and when it can’t be repaired I restock my “I think I should save this” cabinets and covered parts trays. (Everything is categorized and labeled, as at my age I‘ve forgotten more than I know) Not only a learning experience, but these used parts have bailed out many who come to me for a part NLA or too $$$.
Click to expand...
Like you over the last 40 yrs I have forgotten things (most times they are stored back in the cobwebs of my mind) that are no long needed so I have refer to my records at times. As I gotten older putting things in a bin system and having shop software inventory to keep track where things are stored becomes more important every year.

I really gotten to the point that I depend on my Adminsoft Auto Manager software. Some have a mind like a steel trap but I don't. There is no way I remember where every part is stored of the over 2000 different parts on hand.

1626182485958.png


#12

G

grc212

StarTech said:
Looking at that inertia starter. It would not be too bad to disassemble although, the starter pinion has to come off and that retaining ring is a pain to get off. Two things could be wrong either starter pinion fiction pad is worn out or the top motor bushing is worn out. Pinion and starter repair kit for pinion replacement are available but the bushing is not. I see quite a few Kohler starters with both of these issues. Most times the pinion fiction is the reason the pinion doesn't moves up. Where the bushing usually causes a dragging motor. If you taking the main motor apart just be careful of the brush springs popping out.

I just took a Denso solenoid shift starter apart this week without a manual and it is back working again. Just take your time and pay attention to the disassembly.

Starter repair kit only contains the following items which are right above the pinion.
View attachment 57402
Click to expand...
I took the starter apart, brushes and commutator looked good, there is no wear lines on the brushes so they were all worn the same and you were correct about the brush springs and having patience. I had to chase springs several times and found them each time. I called it a "clean living" moment. This bushing you speak of is on the drive end? I destroyed the dust cover on removal so I have a space in my "healing drawer" in my tool box for later on.


#13

G

Gord Baker

First try lubricating the Bendix (spring return) drive. Grooves in shaft. . When you try to start, the gear should spin out to the end and starter rotate freely. Release the key and the bendix spring should return it to park.


#14

G

grc212

Thanks everyone for the input, new starter and upgraded battery did the trick, all is good in the Fla panhandle...


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