Parker Majestic #2 surface grinder

[DavidR8]

The Parker has landed.
Took some effort to move it with my 2-ton engine hoist but it went smoothly.

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[DavidR8]

Took some time tonight to start cleaning up the P-M.
Pulled the chuck so I could see the condition of the bed. It looks awful but it’s just dried oil.

The chuck has a funky actuation shaft so I wanted to investigate that and take pictures for the Walker folks so they can ID what’s required for a handle.

It came apart very easily. The inside is coated in petrified grease.
There’s virtually no wear on the internals or the lever, the fit on the stub on the chuck and the pin on the shaft is nice and snug. Just need to figure out how to remove the heaps of goo.

Also pulled the table stops and middle limit thing (no idea what it’s actual name is), gave it a good wire brushing and vacuuming.
I don't plan on repainting the machine but this top surface will get painted so it's easier to clean.

 

[DavidR8]

I heard from the Walker chuck folks today.
The chuck has somewhat mysterious provenance. The block on the side must be a shop-made addition as is the square actuation drive.
Advice is to clean all the goo out of the inside but to not separate the magnetic pack due to the risk of injury and damage to the components.
I'm to add .25" of 90w gear oil to the base and seal it up with Loctite 77.
I'll have to either make a handle or re-make the square drive because it's a wobble-fest now.
One minor question...how do I measure a hole to size a roll pin?

 

[brino]

I'm to add .25" of 90w gear oil to the base and seal it up with Loctite 77.

I love it, inches of oil; that is much easier to measure than oz. or mL....I have a scale in my pocket!

I mean, you have the CAD files right? So you know the volume intimately.
Tell me that!

-brino

 

[DavidR8]

Almost done modelling it now for the good of other 1960's vintage Walker chuck owners!
I dropped it on my mouse and squished it...so small delay for that

 

[lis2323]

Hey David. I have a selection of roll pins if you need.

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[DavidR8]

Thanks @lis2323 I might take you up on that as I don't have one the correct size.

 

[lis2323]

Easiest way is take them all home to get the right fit and bring the rest back.


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[DavidR8]

Easiest way is take them all home to get the right fit and bring the rest back.


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I will be in touch!

 

[sdelivery]

I heard from the Walker chuck folks today.
The chuck has somewhat mysterious provenance. The block on the side must be a shop-made addition as is the square actuation drive.
Advice is to clean all the goo out of the inside but to not separate the magnetic pack due to the risk of injury and damage to the components.
I'm to add .25" of 90w gear oil to the base and seal it up with Loctite 77.
I'll have to either make a handle or re-make the square drive because it's a wobble-fest now.
One minor question...how do I measure a hole to size a roll pin?

The oil helps to cool and insulate the magnets wiring.
Measure the hole and the roll pin will be a few thousandths larger