I posted yesterday about where to get new knives for the Rockwell
jointer 37-315 that I am restoreing. Thanks to all who pushed me in
the right direction.
As experinced woodworkers might have geussed that before the knives
can be replaced you need to get them off the cutter head. That is
easier said than done. I need help un-freezing the nuts that hold the
knives in place. As soon as I came to a stuck nut I stopped in fear
that I would strip them.
Thanks again to the people that have been helping me out through out
this process.
Dan Murray
On 30 Jul 2004 00:44:24 -0700, [email protected] (Dan Murray) wrote:
>David <[email protected]> wrote in message news:<[email protected]>...
>> which way are you trying to turn them??
>>
>> David
>
>I loosened several easily by pulling the 8mm wrench towards me as I
>stood on the operator side of the Jointer. I stopped when some nuts
>froze.
>
>
>Dan
The thing that helped me the most was to take a large hammer to the
side of the thickest 8mm wrench I could find that would still fit in
the slot in the planer head. Whacking the side on an anvil closed up
the wrench until it was a very tight fit on the nut. That let me but
more torque on the nut without fear of rounding it.
Regards,
Ed
David <[email protected]> wrote in message news:<[email protected]>...
> which way are you trying to turn them??
>
> David
I loosened several easily by pulling the 8mm wrench towards me as I
stood on the operator side of the Jointer. I stopped when some nuts
froze.
Dan
If you do opt for the torch, try dripping candle wax around them. It saved
my butt when working on the axle of a tractor once. It really works too!
"Gary" <[email protected]> wrote in message
news:[email protected]...
> I've had good luck over the years with liquid wrench. Tapping the head
> with a punch and hammer (lightly) sometimes helps. Last resort - you
> might try heat (torch)
If you try to apply heat to the bolt head it will work to expand the
bolt and cause it to freeze even more. You want to heat up the area
around the bolt but not the bolt itself. Sometimes that is easier said
than done. I would go for the lubricants first. But be aware that if
you do use them you should not put a flame anywhere near them later on.
I would use a six-point socket on the bolt rather than a wrench. You
can add a breaker bar and apply tremendous torque if you need to. Be
sure you rap the bolthead with a hammer several times after applying
your lubricant.
Gary wrote:
> I've had good luck over the years with liquid wrench. Tapping the head
> with a punch and hammer (lightly) sometimes helps. Last resort - you
> might try heat (torch)
which way are you trying to turn them??
David
Dan Murray wrote:
> I posted yesterday about where to get new knives for the Rockwell
> jointer 37-315 that I am restoreing. Thanks to all who pushed me in
> the right direction.
>
> As experinced woodworkers might have geussed that before the knives
> can be replaced you need to get them off the cutter head. That is
> easier said than done. I need help un-freezing the nuts that hold the
> knives in place. As soon as I came to a stuck nut I stopped in fear
> that I would strip them.
>
> Thanks again to the people that have been helping me out through out
> this process.
>
>
> Dan Murray
DIYGUY <[email protected]> writes:
>If you try to apply heat to the bolt head it will work to expand the
>bolt and cause it to freeze even more. You want to heat up the area
>around the bolt but not the bolt itself. Sometimes that is easier said
>than done. I would go for the lubricants first. But be aware that if
>you do use them you should not put a flame anywhere near them later on.
>
>I would use a six-point socket on the bolt rather than a wrench. You
>can add a breaker bar and apply tremendous torque if you need to. Be
>sure you rap the bolthead with a hammer several times after applying
>your lubricant.
And how, exactly, do you get a six-point socket over the jackscrews?
scott
PB Blaster from any parts store and many Home Centers.
Soak it all night for the first try.
A jointer head is a really bad place to screw up...
Dan Murray wrote:
> As experinced woodworkers might have geussed that before the knives
> can be replaced you need to get them off the cutter head. That is
> easier said than done.