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Rebuilt the SL710 ratchet long post

Chris Adams

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I’ve had a couple threads on SL710 ratchets and this is a follow up.

This is long and will only be interesting to anyone who has/wants to buy, a cheap older Snap-On ratchet on E-bay or wherever and may want to rebuild it themselves;


Why rebuild a ratchet that has a ‘lifetime warranty’?
Because if you buy it on e-bay, pawn shop, brother in law, whatever, the local Snap-On guy may or may not warranty it.
Plus, if you don’t work in a shop you have to contact/locate a Snap-On guy. Then chase him down. Then talk him into fixing it.
Then hope he has the parts, he probably won’t. Then track him down for the rebuilt part maybe a month later.
The cost of chasing him down exceeds the cost of the parts anyway.

Another big problem, most warranty requests are greeted with “There’s nothing wrong with it” or “It’s supposed to be like that”.

I got both on this ratchet.

So after a LOT of help and encouragement from forum members, I was able to order the correct rebuild kit for my ratchet.

Snap-On assistance on line, while prompt and very nice, gave me the wrong part number to order. Wrong, in the sense it was different, more teeth. It would have worked.
I didn’t need to use it, because wrenchr (thanks again) on our forum found me the right number.


Ordering the kit (two actually, I’m rebuilding another ratchet as well) was very easy.
Snap-On has a good website and excellent follow up links to track your parts.

Prices were great.
10.00 for a complete rebuild kit for each ratchet. Plus tax, no shipping.
At that price chasing down a Snap-On truck was not justifiable.
And wasting a drivers time on a warranty job is also not justifiable since again, this was purchased used.

Besides, I like to do my own work.

The kit comes with the new ‘bottle cap’ dust cover from the back, a new bushing that presses into the back holding the dust cover in place and giving the gear drive a smooth strong place to rotate within.

Taking the old Snap-On down is two screws.
Then, to press the dust cover and bushing out I used a 14 MM long impact socket and my vice. I could have driven it out with a seal/bushing tool but the vice with socket was easier.

I padded the vice jaws with wood as it took too much force to get by with my rubber pads.
The bushing has little teeth on it around the edges.
There wasn’t enough wear on the old bushing to need to replace it, but the dust cover looked so bad I replaced them both anyway.

The pin for the reverse selector you drift out with a small pin punch.
I don’t care for that design, because you can not just pull the lever for cleaning the spring and ball assembly.

After pulling the pawl and ball bearing/spring assembly I gave the stripped ratchet a thorough cleaning. There was a lot of crud down inside the spring hole. 4 Q-tips and cleaning solvent were needed.
The replacement check ball was not a ball, but a hemisphere on a shaft that pops into the tapered coil spring. This helps keep the unit together during installation.
This is a definite improvement over the original ball and spring.


Putting the pawl in is the hardest part, of course. The spring wants to shoot the ball replacement piece across the room, and there is even less room in the SL710 than most ratchets.

After trying with screwdrivers, thin metal blades, etc. I figured it out. You put the pawl in UPSIDE DOWN.
Lots of room on the top, goes right in with the spring held down.

Then using a thin strong screwdriver you depress the ball and spring down into the hole and then rotate the pawl around till it is right.

It takes all of a minute and no more picking up the end piece from the floor.

When putting the pawl in place, be sure you turn it the right way.
One end has a big square hole, the other a small round hole.
The big square goes in first. This is obvious but if you are having problems with the check ball you can turn the pawl around in your hand and might start putting it in backwards. I didn’t but I could see that it would be easy. Then you would have to pull it out do it right.

Putting the reverse lever in was a chore. The square hole is smaller than the cast metal square end on the lever. They want it in there tight.

Be sure you get it in the right way. You could put it in one flat out and you then couldn’t adjust it.
Drop the gear in and be sure the lever is pointing the right way because it is a ‘put in once’ part.


Using wooden pads on my vice I pressed the lever in.
Warning; you have to be careful as the small round end of the shaft can catch on a lip in the pawl and not go through the small hole correctly.
Then it would snap or distort inside the pawl.

I pushed it part way with the vice, then using a small brass dead blow hammer I tapped on the pawl till the pin stuck out.
I then used a small round seal installer (you could use a small socket) to tap the pawl down till the tip on the lever was sticking out about an 1/8 of an inch.

Then I peened it till it was round and flat, securing the lever in the pawl.

A little oil and drop in the gear. Put the new screws in place and
TA DA, it’s done.
The ratchet feels like new, as it should with all moving parts replaced.

The original problem with this ratchet was the square-drive ball would not release the sockets without great force.
Cleaning it, oiling it, soaking it in solvent for three days, pushing the ball in deep with a press, all did not help.
The new square drive check ball works perfectly. Holds the socket securely but you can pull it off with no major work.

Just a note;
The pawl for the 24 tooth gear has only one catch tooth on each side.
The 32 pawl for the 32 gear has two catch teeth on each side. Testing with the 32 gear from my other SL710 I found the ratchet will work with the ‘wrong’ pawl, but the single tooth one looks sturdier.
 
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Merkava_4

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Then I peened it till it was round and flat, securing the lever in the pawl.

Is that end of the lever hollow or solid? It seems like I remember it being hollow and you had to peen it with a large center punch. What did you use to peen it with?
 
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Chris Adams

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Solid on the 710. I put a dimple in the end with a very small punch then used a slightly larger punch then a flat punch. Tried to keep it neat, I didn't want a smeared over look.
 

Merkava_4

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What's the purpose of putting a dimple on the end of it before flattening it out?

Also, you said you started out with a small punch and then went to a larger punch and then went to a flat punch. What was the 1st and 2nd punch? Were they a small center punch and then a larger center punch?
 
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Chris Adams

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I didn't want it to flair over to one side.
The little F70m I rebuilt today had the pin smooshed to the side. It looked pretty Mickey Mouse.

I put a dimple in the very center of the end, then a bigger dimple. Then I smacked it with a flat punch, then flattening it with a body hammer. I wanted it to be round, flared, not pushed over.

Some guys can tap on a slender aluminum rod and pound it down an inch keeping it straight.
I can't.
Gotta use lots of tools to get where someone else could get with a flat rock...

Still, the ratchet works nicely now. So does the F70m. About the same job but no bottle cap, and the reverse lever is held in by a pin, rather than being one piece.
I notice the exact same instructions with each kit.

Oh, and putting the pawl in upside down worked great here also. Less than a minute to put the spring/ball/pawl in.
 

Merkava_4

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DSCN1468.jpg


DSCN1470.jpg


When the guy rebuilt mine he left some kind of a sharp edge on the end of the lever after he peened it. I took a Dremel sanding disc to it to smooth it out.
 

wrenchr

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He also put the dust cover in cocked, I have a 3/8 rebuilt and the dealer was complaining how he does not like these. When I checked it later he did not put the bushing in. !@#$ lol
 
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Chris Adams

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When the bushing is pushed in all the way there is no way the dust cap should rotate. That sucker goes in there hard.

My selector peening doesn't look as clean as Merkava_4's. May later if I use the dremmel...
but probably not.
At least my dust cap is on straight:p


Rebuilding the little F70M was actually harder.
When I pressed the bushing into the back it was very reluctant to go.
And there is almost no clearance on the new gear where it goes into the bushing. I had to oil it before it felt right. But I've used it since and it works great.

May take a picture of each of them, but Merkava_4's camera work would make mine look pretty bad, so I might skip it.
Or talk my wife into taking it with her big camera...
 

Merkava_4

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F-70-M 3/8 Snap-On ratchet. I rebuilt it today. Old ratchet, small, works pretty nice with the new parts in it.

Wow, that must be really old because all I could find in my 1990 catalog was an FM70A :dunno:

I had to partially disassemble mine because I didn't like the grease the dealer used; he just used some red air tool injection grease. I got all of that out of there and installed my own favorite Sta-lube SL3311 grease. :)
 

Merkava_4

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Check out this page - not in English but lots of pics - with these old Snap On ratchets:

Thanks for the link! I see the F-70-M now; is that a compact 3/8'' body?

Edit: I looked at it again and it seems to be the regular 3/8'' drive body and not the compact; which would be a 3/8'' drive in a 1/4'' drive body.
 
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eschoendorff

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Thanks for the link! I see the F-70-M now; is that a compact 3/8'' body?

Edit: I looked at it again and it seems to be the regular 3/8'' drive body and not the compact; which would be a 3/8'' drive in a 1/4'' drive body.

I have a Snap On 3/8 in a 1/4 body and the 1/4 body and teh 1/4 body is noticeably smaller....
 
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Chris Adams

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The Japanese picture is of my ratchet.
Not chromed, it has a dark finish.
I guess it's from the low 50's.

Works great with the new kit.

The one on e-bay has been wire wheeled all over.I wonder if it once had chrome?
The stock finish on mine is very smooth, like a bluing.
Still a decent ratchet and very small, for a Snap-On.
 

Merkava_4

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DSCN1512.jpg


You guys got me worried by saying my bottle cap is not supposed to rotate; so I decided to pull the gear out and take a look. The bushing appears to be perfectly flush with the top of the recess; is it supposed to sink down further?
 

eschoendorff

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DSCN1512.jpg


You guys got me worried by saying my bottle cap is not supposed to rotate; so I decided to pull the gear out and take a look. The bushing appears to be perfectly flush with the top of the recess; is it supposed to sink down further?

Honestly, I wouldn't worry about it. So it rotates - so what? It's not like it's an engine that'll spin up to 6000rpm. *If it were me* I would just use the ratchet and not worry about it.
 
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Chris Adams

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Why worry about it?
I'm sure it's tight enough to keep dirt out. And they aren't water/solvent proof anyway.

On both my ratchets the gear (bushing) is flush, but that makes the dustcover tight. Maybe your dust cover is slightly thinner or the head slightly thicker?
A couple thousandths of an inch would do it.
 

Merkava_4

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eschoendorff
Chris Adams

Thank You guys for the reassurance. I straightened the bottle cap by hand and reassembled the ratchet. I guess I'll see how long it stays straight. The ratchet operates perfectly fine though.
 

eschoendorff

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eschoendorff
Chris Adams

Thank You guys for the reassurance. I straightened the bottle cap by hand and reassembled the ratchet. I guess I'll see how long it stays straight. The ratchet operates perfectly fine though.

And I'd bet money that it will for the next 20 or so years.....
 

BKillian

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I rebuilt this old 1967 ratchet, what all colors are available for the dust cover. All I could find was black. Anyone know why some Snap-on ratchets of this era are missing a date stamp?
Snap-on019.jpg

Snap-on018.jpg
 
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Chris Adams

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Between the on off.

Hi wrenchr, On the date codes, my older Sl710 has a 4 nice clean print where the 7 is on his ratchet. Made in 64? No code there on my newer SL710. Where would the code be on it?
And between the on and off on my old F-70-M there is a mark looks like a stylized capital I. I thought that was just a divider mark. Could it be a 1 as in 1951?
Thanks
 

lbgradwell

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On the date codes, my older Sl710 has a 4 nice clean print where the 7 is on his ratchet. Made in 64? No code there on my newer SL710. Where would the code be on it?
And between the on and off on my old F-70-M there is a mark looks like a stylized capital I. I thought that was just a divider mark. Could it be a 1 as in 1951?

Could be! Have a look here to see for sure!
 
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Chris Adams

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It's on there somewhere, Chris; I have a ratchet where the mark is on the "shaft" of the tool. At a glance, it could be mistaken for a impact mark.

Well, even with a 6 inch magnifying glass I got nothing. But boy, looking that close even a shiny ratchet has lots of scraps, minor dings, even gouges that you don't see normally.

The older SL710 as oposed to this SL 710 is actually from 1984, based on the chart. Heck, it's a spring chicken compared to the 1951 3/8.
 
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