¿ªÔÆÌåÓý

Date

Re: Reversing gear problem

 

Been there, done that....?? The shaft (46) runs in a "bearing" , the hole in the fixed cover, or drive belt cover as LMS calls it.? The shaft is frozen in the cover, and both should be replaced.?


Re: Reversing gear problem

Pete Mclaughlin
 

¿ªÔÆÌåÓý

Thanks Warren, ?i got the Arceurotrade drawing and parts list. ?And thanks Gagetbuilder your drawings for the Dog clutch show there is a 0.270 diameter shaft inside the part #26 shaft as ?i suspected there had to be even though the expanded drawings do not show this internal shaft. ?
Apparently the grease finally dried out on this internal shaft so the part #26 shaft seized and stopped my lathe.

?Now come the fun part of getting the seized shaft off the internal shaft.


Thanks for the help
Pete McLaughlin


On Aug 2, 2017, at 11:18 AM, Warren LeMay notebook@... [7x12minilathe] <7x12minilathe@...> wrote:

?

This is the same drawing I have except for the European style poser plug (and it's a better copy).

Warren L


On 8/2/2017 1:40 PM, DAVID WILLIAMS d.i.williams@... [7x12minilathe] wrote:
?
Dear Pete,

????On my Arceurotrade A1 sized exploded drawing it shows the following starting at the Fixed cover:-

Desc. ? ? ? ? ? ? ? ? ? ? ? ?Part no.

Fixed cover ? ? ? ? ????? ? ?42
Lever Quadrant ? ? ? ? ? ?36
Retaining ring 12 ? ? ? ? 22 ? ( It says there are 3 of them.I assume the 2 others in different parts of the lathe)
Gear 45T ? ? ? ? ? ? ? ? ? ? 45
Parallel Key 3 x 8 ? ?????47
Shaft ? ? ? ? ? ? ? ? ? ? ? ?????46
Key ? ? ? ? ? ? ? ? ? ? ? ? ????322
Mount ? ? ? ? ? ? ? ? ? ? ? ????48 This seems to show a bearing as part of the shaft.
Gearwheel Z20 ? ? ? ? ? ?50 ? ?(It again says 2.?) ?I assume the other one is in another parts of the lathe - on the quadrant.)
Washer M6 ? ? ? ? ? ? ? ? ?51
Screw M6*8 ? ? ? ? ? ? ? ? 52 ? ? (It again says 4.?I assume there are 3 others in other parts of the lathe

The 2 screws (49) holding the mount (48) in place are M5*18.

? ? Go to??This is on the Arceurotrade site in the UK. They sell Seig rather than Real Bull(?) so it should be helpful. You can blow up this drawing.

? ? Best regards,

? ? David

? ? (Nr. Oxford)



From: "Pete Mclaughlin pete_mclaughlin_93555@... [7x12minilathe]" <7x12minilathe@...>
To: 7x12minilathe@...
Sent: Wednesday, 2 August 2017, 16:30
Subject: Re: [7x12minilathe] Reversing gear problem

?
Hi Warren
?In my manual for the 33684 model of the Harbor Freight lathe the shaft #46 goes through the 45 tooth gear part number 45 then through what looks like a washer #22 then through the quadrant plate #36 and ends in the backing plate made of pot metal where it looks like it is peaned to hold it in a fixed non rotating hold in that plate. ?The quadrant plate and 45 tooth gear should turn independently on that shaft #46.

I was hoping someone on the list could confirm this or point out the error of my observation. ?If i am right i will have to replace the shaft, gear and backing plate after i rip the existing shaft out of the backing plate which will destroy then but salvage the quadrant plate and washer.

I hate to destroy something if there is a better way to fix this seized gear.


Thanks for the help
Pete McLaughli n

Sent from my iPad

On Aug 2, 2017, at 2:08 AM, Warren LeMay notebook@... [7x12minilathe] <7x12minilathe@...> wrote:

?
Pete, I dont have a 7x10 but have collected up the HF manuals and after looking at three of them, it appears that the gear in question comes off with that "brass" bearing mount (Drawing # 48 if you have the manual) that is just in front of it.? That gear seems to be mounted on a short shaft that connects it to the smaller gear in front of the retainer.? Both gears are keyed to the shaft.
I suspect what you see peened over on the back side is the pivot for the forward/reverse quadrant (Part #36 called handle mount).
I'm not even sure the gear shaft goes into the casting.
From here, it looks like it would be easy enough to pull the change gears and the mount, and see if the offending gear comes with it.
From the description you gave for the failure, my best guess would be the bearing in the mount failed.? I believe Little Machine Shop lists all of those parts.
......again, best guess from the manuals.......
Warren L


On 8/2/2017 12:39 AM, Pete Mclaughlin pete_mclaughlin_93555@... [7x12minilathe] wrote:
?
The reversing gears on my 7x10 harbor freight lathe33684 have seized. Specifically the black 45 tooth gear shown in this picture.


Does this gear just pull off or is there a sleeve on this shaft the should come off first?

The shaft seems to be pressed into the potmetal frame behind the gear and peaned so it should not come off.

Any help would be appreciated.

Thanks
Pete McLaughlin


Virus-free.





Re: C2 or C3 ?

 

¿ªÔÆÌåÓý

Oh, and that the C2 has a DC motor and the C3 has the brush-less.

Warren L


On 8/2/2017 4:59 PM, Chris Albertson albertson.chris@... [7x12minilathe] wrote:

?
Go to the Sieg web site and look up the specs on a Sieg C3 and compare to what you have.? If they match then you likely have a Sieg C3.



On Wed, Aug 2, 2017 at 1:47 PM, old_toolmaker@... [7x12minilathe] <7x12minilathe@...> wrote:
?

This may seem a silly question.
I think my Micro Mark 7 x 16 is a C3 but I can't find anything in my documentation that would confirm that and I don't find any markings on the lathe bed.
How does one verify the version? I have no immediate need to know but am just curious.

Dick




--

Chris Albertson
Redondo Beach, California

Virus-free.


Re: C2 or C3 ?

 

¿ªÔÆÌåÓý

And while we're at it, and before I answer you with a rumor instead of a fact, I've heard the C2s from MM are painted red, and they switched to the gray paint on the C3.

However, I never ran that into the ground.? I bought the red one on closeout and at this time, dont even know if it is a true 14 or 16.? The manual is moot on the topic.

So many rumors, so little time Dick....
Warren L

On 8/2/2017 4:47 PM, old_toolmaker@... [7x12minilathe] wrote:

?

This may seem a silly question.
I think my Micro Mark 7 x 16 is a C3 but I can't find anything in my documentation that would confirm that and I don't find any markings on the lathe bed.
How does one verify the version? I have no immediate need to know but am just curious.

Dick


Virus-free.


Re: C2 or C3 ?

Chris Albertson
 

Go to the Sieg web site and look up the specs on a Sieg C3 and compare to what you have.? If they match then you likely have a Sieg C3.



On Wed, Aug 2, 2017 at 1:47 PM, old_toolmaker@... [7x12minilathe] <7x12minilathe@...> wrote:
?

This may seem a silly question.
I think my Micro Mark 7 x 16 is a C3 but I can't find anything in my documentation that would confirm that and I don't find any markings on the lathe bed.
How does one verify the version? I have no immediate need to know but am just curious.

Dick




--

Chris Albertson
Redondo Beach, California


C2 or C3 ?

 

This may seem a silly question.
I think my Micro Mark 7 x 16 is a C3 but I can't find anything in my documentation that would confirm that and I don't find any markings on the lathe bed.
How does one verify the version? I have no immediate need to know but am just curious.

Dick


Re: Reversing gear problem

 

¿ªÔÆÌåÓý

This is the same drawing I have except for the European style poser plug (and it's a better copy).

Warren L


On 8/2/2017 1:40 PM, DAVID WILLIAMS d.i.williams@... [7x12minilathe] wrote:

?
Dear Pete,

????On my Arceurotrade A1 sized exploded drawing it shows the following starting at the Fixed cover:-

Desc. ? ? ? ? ? ? ? ? ? ? ? ?Part no.

Fixed cover ? ? ? ? ????? ? ?42
Lever Quadrant ? ? ? ? ? ?36
Retaining ring 12 ? ? ? ? 22 ? ( It says there are 3 of them.I assume the 2 others in different parts of the lathe)
Gear 45T ? ? ? ? ? ? ? ? ? ? 45
Parallel Key 3 x 8 ? ?????47
Shaft ? ? ? ? ? ? ? ? ? ? ? ?????46
Key ? ? ? ? ? ? ? ? ? ? ? ? ????322
Mount ? ? ? ? ? ? ? ? ? ? ? ????48 This seems to show a bearing as part of the shaft.
Gearwheel Z20 ? ? ? ? ? ?50 ? ?(It again says 2.?) ?I assume the other one is in another parts of the lathe - on the quadrant.)
Washer M6 ? ? ? ? ? ? ? ? ?51
Screw M6*8 ? ? ? ? ? ? ? ? 52 ? ? (It again says 4.?I assume there are 3 others in other parts of the lathe

The 2 screws (49) holding the mount (48) in place are M5*18.

? ? Go to??This is on the Arceurotrade site in the UK. They sell Seig rather than Real Bull(?) so it should be helpful. You can blow up this drawing.

? ? Best regards,

? ? David

? ? (Nr. Oxford)



From: "Pete Mclaughlin pete_mclaughlin_93555@... [7x12minilathe]" <7x12minilathe@...>
To: 7x12minilathe@...
Sent: Wednesday, 2 August 2017, 16:30
Subject: Re: [7x12minilathe] Reversing gear problem

?
Hi Warren
?In my manual for the 33684 model of the Harbor Freight lathe the shaft #46 goes through the 45 tooth gear part number 45 then through what looks like a washer #22 then through the quadrant plate #36 and ends in the backing plate made of pot metal where it looks like it is peaned to hold it in a fixed non rotating hold in that plate. ?The quadrant plate and 45 tooth gear should turn independently on that shaft #46.

I was hoping someone on the list could confirm this or point out the error of my observation. ?If i am right i will have to replace the shaft, gear and backing plate after i rip the existing shaft out of the backing plate which will destroy then but salvage the quadrant plate and washer.

I hate to destroy something if there is a better way to fix this seized gear.


Thanks for the help
Pete McLaughli n

Sent from my iPad

On Aug 2, 2017, at 2:08 AM, Warren LeMay notebook@... [7x12minilathe] <7x12minilathe@...> wrote:

?
Pete, I dont have a 7x10 but have collected up the HF manuals and after looking at three of them, it appears that the gear in question comes off with that "brass" bearing mount (Drawing # 48 if you have the manual) that is just in front of it.? That gear seems to be mounted on a short shaft that connects it to the smaller gear in front of the retainer.? Both gears are keyed to the shaft.
I suspect what you see peened over on the back side is the pivot for the forward/reverse quadrant (Part #36 called handle mount).
I'm not even sure the gear shaft goes into the casting.
From here, it looks like it would be easy enough to pull the change gears and the mount, and see if the offending gear comes with it.
From the description you gave for the failure, my best guess would be the bearing in the mount failed.? I believe Little Machine Shop lists all of those parts.
......again, best guess from the manuals.......
Warren L


On 8/2/2017 12:39 AM, Pete Mclaughlin pete_mclaughlin_93555@... [7x12minilathe] wrote:
?
The reversing gears on my 7x10 harbor freight lathe33684 have seized. Specifically the black 45 tooth gear shown in this picture.


Does this gear just pull off or is there a sleeve on this shaft the should come off first?

The shaft seems to be pressed into the potmetal frame behind the gear and peaned so it should not come off.

Any help would be appreciated.

Thanks
Pete McLaughlin


Virus-free.





Re: Reversing gear problem

 

As Warren says, the shaft can be removed after you take the bracket (two screws) off.? This shaft is the one that gets replaced to add a dog clutch so you may find the pictures in the description helpful, see:

John


Re: Reversing gear problem

 

Dear Pete,

????On my Arceurotrade A1 sized exploded drawing it shows the following starting at the Fixed cover:-

Desc. ? ? ? ? ? ? ? ? ? ? ? ?Part no.

Fixed cover ? ? ? ? ????? ? ?42
Lever Quadrant ? ? ? ? ? ?36
Retaining ring 12 ? ? ? ? 22 ? ( It says there are 3 of them.I assume the 2 others in different parts of the lathe)
Gear 45T ? ? ? ? ? ? ? ? ? ? 45
Parallel Key 3 x 8 ? ?????47
Shaft ? ? ? ? ? ? ? ? ? ? ? ?????46
Key ? ? ? ? ? ? ? ? ? ? ? ? ????322
Mount ? ? ? ? ? ? ? ? ? ? ? ????48 This seems to show a bearing as part of the shaft.
Gearwheel Z20 ? ? ? ? ? ?50 ? ?(It again says 2.?) ?I assume the other one is in another parts of the lathe - on the quadrant.)
Washer M6 ? ? ? ? ? ? ? ? ?51
Screw M6*8 ? ? ? ? ? ? ? ? 52 ? ? (It again says 4.?I assume there are 3 others in other parts of the lathe

The 2 screws (49) holding the mount (48) in place are M5*18.

? ? Go to??This is on the Arceurotrade site in the UK. They sell Seig rather than Real Bull(?) so it should be helpful. You can blow up this drawing.

? ? Best regards,

? ? David

? ? (Nr. Oxford)



From: "Pete Mclaughlin pete_mclaughlin_93555@... [7x12minilathe]" <7x12minilathe@...>
To: 7x12minilathe@...
Sent: Wednesday, 2 August 2017, 16:30
Subject: Re: [7x12minilathe] Reversing gear problem

?
Hi Warren
?In my manual for the 33684 model of the Harbor Freight lathe the shaft #46 goes through the 45 tooth gear part number 45 then through what looks like a washer #22 then through the quadrant plate #36 and ends in the backing plate made of pot metal where it looks like it is peaned to hold it in a fixed non rotating hold in that plate. ?The quadrant plate and 45 tooth gear should turn independently on that shaft #46.

I was hoping someone on the list could confirm this or point out the error of my observation. ?If i am right i will have to replace the shaft, gear and backing plate after i rip the existing shaft out of the backing plate which will destroy then but salvage the quadrant plate and washer.

I hate to destroy something if there is a better way to fix this seized gear.


Thanks for the help
Pete McLaughli n


On Aug 2, 2017, at 2:08 AM, Warren LeMay notebook@... [7x12minilathe] <7x12minilathe@...> wrote:

?
Pete, I dont have a 7x10 but have collected up the HF manuals and after looking at three of them, it appears that the gear in question comes off with that "brass" bearing mount (Drawing # 48 if you have the manual) that is just in front of it.? That gear seems to be mounted on a short shaft that connects it to the smaller gear in front of the retainer.? Both gears are keyed to the shaft.
I suspect what you see peened over on the back side is the pivot for the forward/reverse quadrant (Part #36 called handle mount).
I'm not even sure the gear shaft goes into the casting.
From here, it looks like it would be easy enough to pull the change gears and the mount, and see if the offending gear comes with it.
From the description you gave for the failure, my best guess would be the bearing in the mount failed.? I believe Little Machine Shop lists all of those parts.
......again, best guess from the manuals.......
Warren L


On 8/2/2017 12:39 AM, Pete Mclaughlin pete_mclaughlin_93555@... [7x12minilathe] wrote:
?
The reversing gears on my 7x10 harbor freight lathe33684 have seized. Specifically the black 45 tooth gear shown in this picture.


Does this gear just pull off or is there a sleeve on this shaft the should come off first?

The shaft seems to be pressed into the potmetal frame behind the gear and peaned so it should not come off.

Any help would be appreciated.

Thanks
Pete McLaughlin


Virus-free.




Re: Reversing gear problem

 

¿ªÔÆÌåÓý

OK, that didn't work - If you want the PDF, email me direct (notebook@...) and I will send the PDF by reply to.? That yahoo address is coming up invalid.

Warren L


On 8/2/2017 1:26 PM, Warren LeMay notebook@... [7x12minilathe] wrote:

?

Pete, I just (attempted to anyway) sent you the exploded drawing out of my book direct to your email.? I think the peened shaft is really holding only the quadrant and the gear in question (which does NOT move with the quadrant) will come off with Part #48.

It looks to me like the idler shaft within 48 actually aligns with the quadrant pivot and may well be about the same diameter.? If you think about it, look at your drawing and see if the gears have keys (Part # 47).? It would be impossible to have Gear 45 keyed to Shaft #46 and have it peened into the housing.? It would have been seized from time of assembly.

I still suspect if you pull the change gears and pull Mount 48 (2 screws) Gear 45 will come with it and it's the mount/shaft that is stuck (Part 48 to Part 46).

If our drawings don't match, bets are off.? This same arrangement was continued in later models.? Sooo, someone (maybe Chris at LMS) could tell you if you can use the later parts to 'upgrade' the unit.

Warren L


On 8/2/2017 11:29 AM, Pete Mclaughlin pete_mclaughlin_93555@... [7x12minilathe] wrote:
?
Hi Warren
?In my manual for the 33684 model of the Harbor Freight lathe the shaft #46 goes through the 45 tooth gear part number 45 then through what looks like a washer #22 then through the quadrant plate #36 and ends in the backing plate made of pot metal where it looks like it is peaned to hold it in a fixed non rotating hold in that plate. ?The quadrant plate and 45 tooth gear should turn independently on that shaft #46.

I was hoping someone on the list could confirm this or point out the error of my observation. ?If i am right i will have to replace the shaft, gear and backing plate after i rip the existing shaft out of the backing plate which will destroy then but salvage the quadrant plate and washer.

I hate to destroy something if there is a better way to fix this seized gear.


Thanks for the help
Pete McLaughlin


On Aug 2, 2017, at 2:08 AM, Warren LeMay notebook@... [7x12minilathe] <7x12minilathe@...> wrote:

?

Pete, I dont have a 7x10 but have collected up the HF manuals and after looking at three of them, it appears that the gear in question comes off with that "brass" bearing mount (Drawing # 48 if you have the manual) that is just in front of it.? That gear seems to be mounted on a short shaft that connects it to the smaller gear in front of the retainer.? Both gears are keyed to the shaft.

I suspect what you see peened over on the back side is the pivot for the forward/reverse quadrant (Part #36 called handle mount).

I'm not even sure the gear shaft goes into the casting.

From here, it looks like it would be easy enough to pull the change gears and the mount, and see if the offending gear comes with it.

From the description you gave for the failure, my best guess would be the bearing in the mount failed.? I believe Little Machine Shop lists all of those parts.

......again, best guess from the manuals.......

Warren L



On 8/2/2017 12:39 AM, Pete Mclaughlin pete_mclaughlin_93555@... [7x12minilathe] wrote:
?
The reversing gears on my 7x10 harbor freight lathe33684 have seized. Specifically the black 45 tooth gear shown in this picture.


Does this gear just pull off or is there a sleeve on this shaft the should come off first?

The shaft seems to be pressed into the potmetal frame behind the gear and peaned so it should not come off.

Any help would be appreciated.

Thanks
Pete McLaughlin


Virus-free.




Re: Reversing gear problem

 

¿ªÔÆÌåÓý

Pete, I just (attempted to anyway) sent you the exploded drawing out of my book direct to your email.? I think the peened shaft is really holding only the quadrant and the gear in question (which does NOT move with the quadrant) will come off with Part #48.

It looks to me like the idler shaft within 48 actually aligns with the quadrant pivot and may well be about the same diameter.? If you think about it, look at your drawing and see if the gears have keys (Part # 47).? It would be impossible to have Gear 45 keyed to Shaft #46 and have it peened into the housing.? It would have been seized from time of assembly.

I still suspect if you pull the change gears and pull Mount 48 (2 screws) Gear 45 will come with it and it's the mount/shaft that is stuck (Part 48 to Part 46).

If our drawings don't match, bets are off.? This same arrangement was continued in later models.? Sooo, someone (maybe Chris at LMS) could tell you if you can use the later parts to 'upgrade' the unit.

Warren L


On 8/2/2017 11:29 AM, Pete Mclaughlin pete_mclaughlin_93555@... [7x12minilathe] wrote:

?
Hi Warren
?In my manual for the 33684 model of the Harbor Freight lathe the shaft #46 goes through the 45 tooth gear part number 45 then through what looks like a washer #22 then through the quadrant plate #36 and ends in the backing plate made of pot metal where it looks like it is peaned to hold it in a fixed non rotating hold in that plate. ?The quadrant plate and 45 tooth gear should turn independently on that shaft #46.

I was hoping someone on the list could confirm this or point out the error of my observation. ?If i am right i will have to replace the shaft, gear and backing plate after i rip the existing shaft out of the backing plate which will destroy then but salvage the quadrant plate and washer.

I hate to destroy something if there is a better way to fix this seized gear.


Thanks for the help
Pete McLaughlin


On Aug 2, 2017, at 2:08 AM, Warren LeMay notebook@... [7x12minilathe] <7x12minilathe@...> wrote:

?

Pete, I dont have a 7x10 but have collected up the HF manuals and after looking at three of them, it appears that the gear in question comes off with that "brass" bearing mount (Drawing # 48 if you have the manual) that is just in front of it.? That gear seems to be mounted on a short shaft that connects it to the smaller gear in front of the retainer.? Both gears are keyed to the shaft.

I suspect what you see peened over on the back side is the pivot for the forward/reverse quadrant (Part #36 called handle mount).

I'm not even sure the gear shaft goes into the casting.

From here, it looks like it would be easy enough to pull the change gears and the mount, and see if the offending gear comes with it.

From the description you gave for the failure, my best guess would be the bearing in the mount failed.? I believe Little Machine Shop lists all of those parts.

......again, best guess from the manuals.......

Warren L



On 8/2/2017 12:39 AM, Pete Mclaughlin pete_mclaughlin_93555@... [7x12minilathe] wrote:
?
The reversing gears on my 7x10 harbor freight lathe33684 have seized. Specifically the black 45 tooth gear shown in this picture.


Does this gear just pull off or is there a sleeve on this shaft the should come off first?

The shaft seems to be pressed into the potmetal frame behind the gear and peaned so it should not come off.

Any help would be appreciated.

Thanks
Pete McLaughlin


Virus-free.



Re: Reversing gear problem

Pete Mclaughlin
 

¿ªÔÆÌåÓý

Hi Warren
?In my manual for the 33684 model of the Harbor Freight lathe the shaft #46 goes through the 45 tooth gear part number 45 then through what looks like a washer #22 then through the quadrant plate #36 and ends in the backing plate made of pot metal where it looks like it is peaned to hold it in a fixed non rotating hold in that plate. ?The quadrant plate and 45 tooth gear should turn independently on that shaft #46.

I was hoping someone on the list could confirm this or point out the error of my observation. ?If i am right i will have to replace the shaft, gear and backing plate after i rip the existing shaft out of the backing plate which will destroy then but salvage the quadrant plate and washer.

I hate to destroy something if there is a better way to fix this seized gear.


Thanks for the help
Pete McLaughlin


On Aug 2, 2017, at 2:08 AM, Warren LeMay notebook@... [7x12minilathe] <7x12minilathe@...> wrote:

?

Pete, I dont have a 7x10 but have collected up the HF manuals and after looking at three of them, it appears that the gear in question comes off with that "brass" bearing mount (Drawing # 48 if you have the manual) that is just in front of it.? That gear seems to be mounted on a short shaft that connects it to the smaller gear in front of the retainer.? Both gears are keyed to the shaft.

I suspect what you see peened over on the back side is the pivot for the forward/reverse quadrant (Part #36 called handle mount).

I'm not even sure the gear shaft goes into the casting.

From here, it looks like it would be easy enough to pull the change gears and the mount, and see if the offending gear comes with it.

From the description you gave for the failure, my best guess would be the bearing in the mount failed.? I believe Little Machine Shop lists all of those parts.

......again, best guess from the manuals.......

Warren L



On 8/2/2017 12:39 AM, Pete Mclaughlin pete_mclaughlin_93555@... [7x12minilathe] wrote:
?
The reversing gears on my 7x10 harbor freight lathe33684 have seized. Specifically the black 45 tooth gear shown in this picture.


Does this gear just pull off or is there a sleeve on this shaft the should come off first?

The shaft seems to be pressed into the potmetal frame behind the gear and peaned so it should not come off.

Any help would be appreciated.

Thanks
Pete McLaughlin


Virus-free.


make magazine multi-tool from a grinder

 

I just received my weekly make magazine newsletter and it has a link to?a set of videos that?Tuomas?Soikkeli made on how he turns a Bosch angle grinder into a guided cutter, chop saw, bench grinder, polisher, pipe cutter (which can handle pipe from 50-125mm diameter), circular saw, and more.


I wouldn't do it myself, but It looks pretty cool so I thought others on this list might like it.



?

Paul Conti --

USA



Re: Reversing gear problem

 

¿ªÔÆÌåÓý

Pete, I dont have a 7x10 but have collected up the HF manuals and after looking at three of them, it appears that the gear in question comes off with that "brass" bearing mount (Drawing # 48 if you have the manual) that is just in front of it.? That gear seems to be mounted on a short shaft that connects it to the smaller gear in front of the retainer.? Both gears are keyed to the shaft.

I suspect what you see peened over on the back side is the pivot for the forward/reverse quadrant (Part #36 called handle mount).

I'm not even sure the gear shaft goes into the casting.

From here, it looks like it would be easy enough to pull the change gears and the mount, and see if the offending gear comes with it.

From the description you gave for the failure, my best guess would be the bearing in the mount failed.? I believe Little Machine Shop lists all of those parts.

......again, best guess from the manuals.......

Warren L



On 8/2/2017 12:39 AM, Pete Mclaughlin pete_mclaughlin_93555@... [7x12minilathe] wrote:

?
The reversing gears on my 7x10 harbor freight lathe33684 have seized. Specifically the black 45 tooth gear shown in this picture.


Does this gear just pull off or is there a sleeve on this shaft the should come off first?

The shaft seems to be pressed into the potmetal frame behind the gear and peaned so it should not come off.

Any help would be appreciated.

Thanks
Pete McLaughlin


Virus-free.


Re: Reversing gear problem

 

The shaft should pull out of the pot metal frame easily. It sounds like that is the part that is seized. The 45 tooth gear is held in place by a external snap ring. The change gear, shaft and 45 tooth gear rotate as a unit in the pot metal frame and half moon shaped carrier. Some how your going to need to get the shaft out of the pot metal frame and smooth out the frame and the shaft so the shaft turns freely. Paul M


Reversing gear problem

Pete Mclaughlin
 

¿ªÔÆÌåÓý

The reversing gears on my 7x10 harbor freight lathe33684 have seized. Specifically the black 45 tooth gear shown in this picture.


Does this gear just pull off or is there a sleeve on this shaft the should come off first?

The shaft seems to be pressed into the potmetal frame behind the gear and peaned so it should not come off.

Any help would be appreciated.

Thanks
Pete McLaughlin


Re: Pics and files

 

>Yes, I assumed he just flip flopped them.

Indeed I did! Sorry about that. -though I'll probably still refer to them as "those ones you can't search"? ;-)


Re: Pics and files

 

This may be of interest re: PDFs.
We recently, maybe 10-11 months ago, bought a very high end office printer/scanner, since we scan over 5000 pages/week and keep/db/archive them all.

The new printer scans at 60 pages per minutes from both sides of A4 paper at once-300-600 dpi.
We use 300 dpi full colour for everything.

The most important discovery.
The printer uses a dedicated hw processor to compress PDF files.
Its a pipeline, and hw scanning, printing, and compressing are complely independent processes than run in parallel.

The new printer make a 30-40 page document, scanned at 300 dpi, full colour, about 3-4 MB in size.
SW-compressed PDF files, 30 pages, 300 dpi, are typically about 20-30 MB.
So the best tech. makes PDF files 10x smaller, at better quality !!

Tested with exact same 2 docs, via sw and hw.

Quality is at least as good, perhaps better, with the new hw scanning/compressing, vs sw compressed pdf files.
These are typically deeds, legal docs etc. of low amount of photos.

I tested this with a typical acid-test.
High-speed scan a file to pdf, print it, compare to original.
It looks near-original.


Second-Best part.
We got the 12.000€ printer free of charge !
from the distributor, and pay about 2 cents/page in costs, full-colour printout costs.
We only pay for pages used, and nothing for the hw.

Total costs == 300€ /month, vs 500€ in the past by using an HP 3000 series network printer, full set of consumables, every month.
This includes all consumables, printer, service, support etc.
Yes, we paid nothing for the printer, and have a 3 or 4 year contract.

The scanner attachment is a special expensive add-on, was worth maybe 1500-3000€, and Very Good for us.
The single-pass top-bottom scan means no paper jams, ever, and amazing speed.

Iirc a Minolta top end model, re-badged something for the german market, official dealer and service, specialist printer retailer.

A curious, valuable, feature is you can manual-scan docs, while the printer is printing and sorting to == 10 hoppers at the same time.
Likewise, loading paper ink, staples etc. does not affect scanning at all.

So for == 15 people using it, scanning has zero impact on print workflow.
Volume doubled, time saved scanning == 77 hours / month, costs dropped 40%, filesizes dropped 90%, quality improved.

And we can print really neat presentations, stapled, with top-bottom covers on specialty gloss paper, for 10x less cost than print service, in maybe 12 minutes for 50 sets of 30 pages.
Seldom used, but sometimes very valuable.

On 31/07/2017 22:46, Ian Newman ian_new@... [7x12minilathe] wrote:
Hi Ralph,

<SNIP>
If you have a .pdf why do you need a image?
</SNIP>

The issue arose due to a desire a use a photo hosting site.

All the best,
Ian
--
-hanermo (cnc designs)


Re: Pics and files

 

¿ªÔÆÌåÓý

Yes, I assumed he just flip flopped them.



From: 7x12minilathe@... [mailto:7x12minilathe@...]
Sent: Monday, July 31, 2017 7:02 PM
To: 7x12minilathe
Subject: Re: [7x12minilathe] Re: Pics and files

?



On Mon, Jul 31, 2017 at 3:59 PM, soffee83@... [7x12minilathe] <7x12minilathe@...> wrote:
?

Thanks for that PDF info Michael. I had always assumed somehow that those "vector" types you describe were just stuff that was too old to originate in digital form and thus had been scanned rather than converted and formatted to PDF.?

You have it backwards.? Perhaps a typo.

raster files contain pixels
vector files contain letters, the same ia with a word processing files,, you can edit and copy past.

?The above applies to both text and graphic parts of the files. ? Drawings can be made of editable lines and text.? Typically technical drawing or diagrams are like this but many times are is cartoon artwork.

And yes.? When you can a book you get a RASTER file but then it is easy to use OCR software to process the file into a vector type.

With someway like Adobe Acrobat you can convert one to there other and convert in either direction. ? ?Other software allows this too. ? If using a Mac t comes with Preview and it can convert between different image formats


Re: Pics and files

Chris Albertson
 



On Mon, Jul 31, 2017 at 3:59 PM, soffee83@... [7x12minilathe] <7x12minilathe@...> wrote:
?

Thanks for that PDF info Michael. I had always assumed somehow that those "vector" types you describe were just stuff that was too old to originate in digital form and thus had been scanned rather than converted and formatted to PDF.?

You have it backwards.? Perhaps a typo.

raster files contain pixels
vector files contain letters, the same ia with a word processing files,, you can edit and copy past.

?The above applies to both text and graphic parts of the files. ? Drawings can be made of editable lines and text.? Typically technical drawing or diagrams are like this but many times are is cartoon artwork.

And yes.? When you can a book you get a RASTER file but then it is easy to use OCR software to process the file into a vector type.

With someway like Adobe Acrobat you can convert one to there other and convert in either direction. ? ?Other software allows this too. ? If using a Mac t comes with Preview and it can convert between different image formats