25lbs little giant power hammer rebuild

[BenoitL]

I picked up this little power hammer that needed a home. It was made in 1912 is well used and needs a total rebuild to work. It came with some new parts but it will need all the babbit bearing re poured and lots of minor fixes. I like a brake on a mechanical hammer so i started with making the brake support connected to the linkage that will contact the flywheel. I also trued up the flywheel to get better contact.

 

[140mower]

I'm going to enjoy following this thread. Just a little bit jealous........

 

[wmetfab]

Way to go man. They are beautiful machines

 

[trevj]

Geez, that thing is almost new, as Little Giant hammers go! Nice!

I have a Jardine 25 Lb hammer, made under license from Little Giant, in Winnipeg Manitoba.

Somewhere in my shi... stuff...!... I have a copy of the rebuild book by Kern, which, if you don't have, you should.

And, my standard two cents for limiting bloodshed, build a grenade screen for between the operator and the hammer spring. The face (and possibly life!) that it saves, may be that of someone you care deeply about! The springs do eventually degrade, and when they blow, it can be just a harmless event, or, life changing!

 

[Dan Dubeau]

Nice hammer. Looking forward to see it hitting again.

 

[BenoitL]

I made up a tapered mandrel and poured the bearing in the drive pulley. Chucked it up and bored out the babbit. The clutch facing had been wallowed out on two sides from the clutch only catching in one position and needed to be trued. The diameter of the main drive shaft is 1 5/8 so i turned a mandrel to pour those bearings with.

 

[BenoitL]

Geez, that thing is almost new, as Little Giant hammers go! Nice!

I have a Jardine 25 Lb hammer, made under license from Little Giant, in Winnipeg Manitoba.

Somewhere in my shi... stuff...!... I have a copy of the rebuild book by Kern, which, if you don't have, you should.

And, my standard two cents for limiting bloodshed, build a grenade screen for between the operator and the hammer spring. The face (and possibly life!) that it saves, may be that of someone you care deeply about! The springs do eventually degrade, and when they blow, it can be just a harmless event, or, life changing!

Hi Trevj

The jardine hammers are nice and take most of the same parts.

I have never seen that rebuild book before so ill have to check it out.

Definitely gonna put a guard in front. Just not sure of the design yet. I don't want something that gets in the way of adjusting the pitman.

 

[trevj]

Hi Trevj

The jardine hammers are nice and take most of the same parts.

I have never seen that rebuild book before so ill have to check it out.

Definitely gonna put a guard in front. Just not sure of the design yet. I don't want something that gets in the way of adjusting the pitman.

I have met a couple guys that had very ugly accidents with the springs blowing out. Worth putting a grenade screen up! Not a good place!

https://www.smokstak.com/forum/threads/rebuilding-little-giant-power-hammers.88106/ is worth a look!

 

[BenoitL]

Poured the babbit for the main bearings. Using the mandrel, collars, spacers, and damming compound to make the mold. After a little cleanup and scraping its good as new.

 

[Tom O]

Nice what did you use to dam up the ends?

 

[BenoitL]

I used the Babbittrite Damming Compound that came from little giant. Still worked well even though its 14 years old.

 

[140mower]

....... a little bit jealous of the platen you are working on. Nice work on the pour.

 

[Martin w]

Very nice! How much Babbit does it take to do a pour like that?
Martin

 

[BenoitL]

Very nice! How much Babbit does it take to do a pour like that?
Martin

It took 2-4.5 lbs ingots to make all the bearings and that includes using the old bearings.

 

[BenoitL]

I made all the minor repairs on the little parts, cleaned then all up and painted the lot.

 

[BenoitL]

Started the assembly on the little giant. I mounted the hammer on a wooden platform to raise the working height and allow me to move the hammer around.