New Belts but Cassette Clutch needs more Grip 
Author Message
 New Belts but Cassette Clutch needs more Grip

I have installed new drive belts in a mini-boom-box cassette player to
fix an 'eating tapes' problem but the player's clutch still slips too
easily to FF and rewind tapes correctly. I have disassembled the clutch
and it amounts to two plastic disks with a soft, fibrous washer between
them. Is there anything to increase the grip here in a controlled
manner? Rosin and "phono non slip" have come to mind but I don't know
what's appropriate.

Sent via Deja.com http://www.***.com/
Before you buy.



Tue, 25 Feb 2003 05:11:50 GMT
 New Belts but Cassette Clutch needs more Grip
The proper solution is to order a new clutch assy.   I once had an
older unit that it was not available anymore.  I went and got some
felt material from a material shop for dressmakers.  This worked very
well.

Normaly, I would get a proper replacment from the manufacture reps.

--

Jerry Greenberg

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I have installed new drive belts in a mini-boom-box cassette player to
fix an 'eating tapes' problem but the player's clutch still slips too
easily to FF and rewind tapes correctly. I have disassembled the
clutch
and it amounts to two plastic disks with a soft, fibrous washer
between
them. Is there anything to increase the grip here in a controlled
manner? Rosin and "phono non slip" have come to mind but I don't know
what's appropriate.

Sent via Deja.com http://www.deja.com/
Before you buy.



Tue, 25 Feb 2003 10:26:50 GMT
 New Belts but Cassette Clutch needs more Grip
I would use my Dremel tool and roughen the two
surfaces that press against the pad. The felt washer
won't be able to slip as easily.

Denny B


Quote:
> I have installed new drive belts in a mini-boom-box cassette player to
> fix an 'eating tapes' problem but the player's clutch still slips too
> easily to FF and rewind tapes correctly. I have disassembled the clutch
> and it amounts to two plastic disks with a soft, fibrous washer between
> them. Is there anything to increase the grip here in a controlled
> manner? Rosin and "phono non slip" have come to mind but I don't know
> what's appropriate.

> Sent via Deja.com http://www.deja.com/
> Before you buy.



Tue, 25 Feb 2003 11:35:36 GMT
 New Belts but Cassette Clutch needs more Grip


Quote:
> I would use my Dremel tool and roughen the two
> surfaces that press against the pad. The felt washer
> won't be able to slip as easily.

That's a definite no-no! Those surfaces need to be very smooth or detonation
coef will skyrocket.
I suggest you "brush up" that fibrous washer a little bit using knife or any
other tool.
And make sure there is no oil or grease on it or on the disks. Then find
spring which applies pressure to clutch and try carefully adjust it. Well,
sometimes it's not the clutch that slips, so check before adjusting
anything.

HTH
Eugene



Tue, 25 Feb 2003 18:23:21 GMT
 New Belts but Cassette Clutch needs more Grip

Quote:

>I have installed new drive belts in a mini-boom-box cassette
player to
>fix an 'eating tapes' problem but the player's clutch still slips
too
>easily to FF and rewind tapes correctly. I have disassembled the
clutch
>and it amounts to two plastic disks with a soft, fibrous washer
between
>them. Is there anything to increase the grip here in a controlled
>manner? Rosin and "phono non slip" have come to mind but I don't
know
>what's appropriate.

>Sent via Deja.com http://www.deja.com/
>Before you buy.

There are clutch felt pad kits available for vcr clutches. These
pads have adhesive backing and can be cut to size for audio
cassette mechanisms. Try replacing the pad.


Tue, 25 Feb 2003 19:42:15 GMT
 New Belts but Cassette Clutch needs more Grip
In many cassette decks I've seen, FF and Rewind do not make use of the
fibrous clutch.  The fibrous clutch is used during Play, on the take-up
side, with just enough tension to wind the tape coming from the
capstan/pinch roller (which is what is actually pulling the tape off the
supply reel).  For the higher speed winding when the pinch roller is not
normally engaged, the take up spindle tension is dependent on a more direct
link to the motor, either by a gear
(generally problem free but occasionally noisy), or through the idler
clutch.  The idler is often difficult to
see unless the deck is removed from the front panel of the boom box.  It's a
small plastic wheel on a moving arm, about 1/2 to 5/8 inch diameter, with a
solid {*filter*} "tire" around the outside.  When the tire wears, or the outer
surface dries out, it loses its grip.  Also, there is usually a small spring
that pulls on the idler arm -- make sure this is not missing, or lost when
replacing the tire.

Michael Caplan CET


Quote:
> I have installed new drive belts in a mini-boom-box cassette player to
> fix an 'eating tapes' problem but the player's clutch still slips too
> easily to FF and rewind tapes correctly. I have disassembled the clutch
> and it amounts to two plastic disks with a soft, fibrous washer between
> them. Is there anything to increase the grip here in a controlled
> manner? Rosin and "phono non slip" have come to mind but I don't know
> what's appropriate.

> Sent via Deja.com http://www.***.com/
> Before you buy.



Tue, 25 Feb 2003 20:24:40 GMT
 New Belts but Cassette Clutch needs more Grip
After years and years of always changing belts and tires i discovered
that one can check {*filter*} belts and tires and tell if they have their normal
"spring" if they do i just resurface the belts and tires with a sandpaper
cylinder in my Dremel tool "very very very carefully" i also check surfaces
of
metal pulleys. On account of bad design and slippage, that is why many
mechanisms
use "tooth belts" The better mechanisms have always had more elaborate
gripping
than the "elcheapos"
I am still waiting for the first unit to be returned where i have roughened
the surface of
a clutch.
I prefer not to continuously be changing parts where i don't have to.

thanks
Denny B


Quote:


> >I have installed new drive belts in a mini-boom-box cassette
> player to
> >fix an 'eating tapes' problem but the player's clutch still slips
> too
> >easily to FF and rewind tapes correctly. I have disassembled the
> clutch
> >and it amounts to two plastic disks with a soft, fibrous washer
> between
> >them. Is there anything to increase the grip here in a controlled
> >manner? Rosin and "phono non slip" have come to mind but I don't
> know
> >what's appropriate.

> >Sent via Deja.com http://www.***.com/
> >Before you buy.

> There are clutch felt pad kits available for vcr clutches. These
> pads have adhesive backing and can be cut to size for audio
> cassette mechanisms. Try replacing the pad.



Tue, 25 Feb 2003 21:26:55 GMT
 New Belts but Cassette Clutch needs more Grip

Quote:

>...
It's a
> small plastic wheel on a moving arm, about 1/2 to 5/8 inch diameter, with a
> solid {*filter*} "tire" around the outside.  When the tire wears, or the outer
> surface dries out, it loses its grip.  Also, there is usually a small spring
> that pulls on the idler arm -- make sure this is not missing, or lost when
> replacing the tire.

> Michael Caplan CET

        Where can you buy replacement tires for cassette clutches?
VCR-sized tires are available from several sources, the only place
Ive seen the small ones was Premium Parts, who carried the full PRB
line. I don't think they are in business anymore, haven't seen any ads
in ES&T or got a catalog in a long time, and the local distributor won't
special-order PRB.
  I have a couple of nice home stereo type cassette decks I've
refurbished, but they have low takeup torque. I really need to fix this
before I can sell them.

Mike
WB2MEP



Sat, 01 Mar 2003 00:31:06 GMT
 New Belts but Cassette Clutch needs more Grip
hi.. i believe PRB has ben acquired by Russell Industries (a.k.a. Russell
EVG which i think is from a previous acquisition of Electro-Voice). You

http://www.***.com/

The PRB line includes an extensive inventory of belts and tires listed in a
large cross reference. Listings in this guide include all sorts of equipment
from many manufacturers.. drive belts for old floppy drives, for example.

You will need to supply them with the equipment brand/model numbers, and you
might need to supply the dimensions of the original parts. This would
probably require you to measure the inside diameter/circumference, cross
sectional thickness (ID to OD) and top-to-bottom thickness in thousandths of
an inch or millimeters.

While most of their small tires are economically priced, don't be surprised
if some of them are in the $10 dollar price range. I think it's a matter of
less popular items costing more.

cheers
WB
.................

Quote:


>>...
>It's a
>> small plastic wheel on a moving arm, about 1/2 to 5/8 inch diameter, with
a
>> solid {*filter*} "tire" around the outside.  When the tire wears, or the
outer
>> surface dries out, it loses its grip.  Also, there is usually a small
spring
>> that pulls on the idler arm -- make sure this is not missing, or lost
when
>> replacing the tire.

>> Michael Caplan CET

> Where can you buy replacement tires for cassette clutches?
>VCR-sized tires are available from several sources, the only place
>Ive seen the small ones was Premium Parts, who carried the full PRB
>line. I don't think they are in business anymore, haven't seen any ads
>in ES&T or got a catalog in a long time, and the local distributor won't
>special-order PRB.
>  I have a couple of nice home stereo type cassette decks I've
>refurbished, but they have low takeup torque. I really need to fix this
>before I can sell them.

>Mike
>WB2MEP



Sat, 01 Mar 2003 03:44:06 GMT
 New Belts but Cassette Clutch needs more Grip
WB.

I've been to the PRB website, and all I can say is I hope that's only
a partial listing.  I have the big red catalog & substitution guides
from a couple years ago, and the website list sonly a fraction of what's
in the paper catalogs.  

I've already had the idlers off on one deck and made the measurements,
and determined which tires I need, but they didn't add up to the minimum
order amount Premium Parts wanted, so I put the project off to the side.

I'll have to do the same with the other deck (recently discovered torque
problem), and bring the measurements to work, where my PC is...

Thanks,

Mike
WB2MEP

Quote:

> hi.. i believe PRB has ben acquired by Russell Industries (a.k.a. Russell
> EVG which i think is from a previous acquisition of Electro-Voice). You

> http://www.prbline.com/

> While most of their small tires are economically priced, don't be surprised
> if some of them are in the $10 dollar price range. I think it's a matter of
> less popular items costing more.

> cheers
> WB



Sun, 02 Mar 2003 00:42:11 GMT
 New Belts but Cassette Clutch needs more Grip
WB.

I've been to the PRB website, and all I can say is I hope that's only
a partial listing.  I have the big red catalog & substitution guides
from a couple years ago, and the website list sonly a fraction of what's
in the paper catalogs.  

I've already had the idlers off on one deck and made the measurements,
and determined which tires I need, but they didn't add up to the minimum
order amount Premium Parts wanted, so I put the project off to the side.

I'll have to do the same with the other deck (recently discovered torque
problem), and bring the measurements to work, where my PC is...

Thanks,

Mike
WB2MEP

Quote:

> hi.. i believe PRB has ben acquired by Russell Industries (a.k.a. Russell
> EVG which i think is from a previous acquisition of Electro-Voice). You

> http://www.prbline.com/

> While most of their small tires are economically priced, don't be surprised
> if some of them are in the $10 dollar price range. I think it's a matter of
> less popular items costing more.

> cheers
> WB



Sun, 02 Mar 2003 00:42:34 GMT
 New Belts but Cassette Clutch needs more Grip
WB.

I've been to the PRB website, and all I can say is I hope that's only
a partial listing.  I have the big red catalog & substitution guides
from a couple years ago, and the website list sonly a fraction of what's
in the paper catalogs.  

I've already had the idlers off on one deck and made the measurements,
and determined which tires I need, but they didn't add up to the minimum
order amount Premium Parts wanted, so I put the project off to the side.

I'll have to do the same with the other deck (recently discovered torque
problem), and bring the measurements to work, where my PC is...

Thanks,

Mike
WB2MEP

Quote:

> hi.. i believe PRB has ben acquired by Russell Industries (a.k.a. Russell
> EVG which i think is from a previous acquisition of Electro-Voice). You

> http://www.prbline.com/

> While most of their small tires are economically priced, don't be surprised
> if some of them are in the $10 dollar price range. I think it's a matter of
> less popular items costing more.

> cheers
> WB



Sun, 02 Mar 2003 00:43:10 GMT
 New Belts but Cassette Clutch needs more Grip
WB.

I've been to the PRB website, and all I can say is I hope that's only
a partial listing.  I have the big red catalog & substitution guides
from a couple years ago, and the website list sonly a fraction of what's
in the paper catalogs.  

I've already had the idlers off on one deck and made the measurements,
and determined which tires I need, but they didn't add up to the minimum
order amount Premium Parts wanted, so I put the project off to the side.

I'll have to do the same with the other deck (recently discovered torque
problem), and bring the measurements to work, where my PC is...

Thanks,

Mike
WB2MEP

Quote:

> hi.. i believe PRB has ben acquired by Russell Industries (a.k.a. Russell
> EVG which i think is from a previous acquisition of Electro-Voice). You

> http://www.prbline.com/

> While most of their small tires are economically priced, don't be surprised
> if some of them are in the $10 dollar price range. I think it's a matter of
> less popular items costing more.

> cheers
> WB



Sun, 02 Mar 2003 00:43:20 GMT
 New Belts but Cassette Clutch needs more Grip
WB.

I've been to the PRB website, and all I can say is I hope that's only
a partial listing.  I have the big red catalog & substitution guides
from a couple years ago, and the website list sonly a fraction of what's
in the paper catalogs.  

I've already had the idlers off on one deck and made the measurements,
and determined which tires I need, but they didn't add up to the minimum
order amount Premium Parts wanted, so I put the project off to the side.

I'll have to do the same with the other deck (recently discovered torque
problem), and bring the measurements to work, where my PC is...

Thanks,

Mike
WB2MEP

Quote:

> hi.. i believe PRB has ben acquired by Russell Industries (a.k.a. Russell
> EVG which i think is from a previous acquisition of Electro-Voice). You

> http://www.prbline.com/

> While most of their small tires are economically priced, don't be surprised
> if some of them are in the $10 dollar price range. I think it's a matter of
> less popular items costing more.

> cheers
> WB



Sun, 02 Mar 2003 00:42:47 GMT
 New Belts but Cassette Clutch needs more Grip

Sorry about the multiple posts.  I was trying to "reply to group and
sender" and got a server error when I hit send.  I thought the message
never went out.  I then sent with "reply to group" and it went.

Mike A



Sun, 02 Mar 2003 03:00:00 GMT
 
 [ 15 post ] 

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