Mackissic chipper shredder restoration

[ebinmaine 78,003]

5 minutes ago, sqrlgtr said:

I may have missed it but is that regal red paint?

 

 

Rust-Oleum 2x Apple Red Gloss. It's a little brighter red than the Wheel Horse colors.

Same color as

My 1975 C160 Automatic.

 

 

It's actually a pretty close match to one of the colors Mackissic used on their own equipment.

[ebinmaine 78,003]

I got a few minutes to get back into this bearing swap today. 

 

Here's the two I ordered. 

 

 

The one on the left is what I knew I needed. 

The right side is a different brand and part number but appeared usable. 

Curiosity got the better of me so I wanted to see it. 

Both are USA made New Old Stock. 

 

Good thing I got two... because one was bad. Possible shipping damage. ?

 

See how the inner bearing is knocked outta plane...

 

 

I unbolted the side again and removed the bad (old) bearing. 

Got it all bolted back together. 

 

 

Then I adjusted the side chipper anvil. 

1/16" clearance. 

 

 

Added grease to the replacement bearing. 

Went to grease the oldest bearing... (original green paint??) But the grease zerk was broken. I knew that but had forgotten. 

I found a set of ez outs last year. Put them to work. 

 

 

 

 

 I'll stop by the hardware store next chance I can. 

 

 

[gwest_ca-(File Mod) 12,092]

That is a self-aligning bearing. The outside is spherical so you could turn it 90 degrees in the housing to remove it.

If the mounting locations on each side were not identical a straight shaft would align the bearings to operate correctly.

[ebinmaine 78,003]

1 minute ago, gwest_ca said:

That is a self-aligning bearing. The outside is spherical so you could turn it 90 degrees in the housing to remove it.

If the mounting locations on each side were not identical a straight shaft would align the bearings to operate correctly.

 

Quite true for a normal operating unit. 

This one was unwrapped and bone dry  when it arrived. It has some surface rust on the outside and the rotation of the bearing feels rough. 

It won't take grease and won't straighten. 

Unfortunately it appears this one's been stored dry too long and damaged beyond use. 

 

[Handy Don 16,119]

19 minutes ago, ebinmaine said:

Unfortunately it appears this one's been stored dry too long and damaged beyond use. 

 

If you are unable to return it, I’d consider dosing with penetrant and letting it sit for a few weeks and if it comes free, dose it with a light machine oil so you can exercise it while feeling for significant bearing issues. It might be handy, if you can revive it, as a backup spare.

[Wayne0 1,543]

[ebinmaine 78,003]

I stopped by the hardware store and grabbed some new grease zerks in 2 sizes. 

I know there's some larger ones  around here but these are always welcome as spares. 

 

 

 

New fitting in place. 

Extra dose of nice new red grease. 

I over filled it while rotating the shaft so the old gunk would be emptied as much as possible. 

 

 

 

 

[ebinmaine 78,003]

Here's what I came up with for an idler setup. 

 

I used L brackets I'd ordered for the Two Stage Tall Chute snowblower last year. 

 

 

 

 

 

 

 

 

I pulled the digital tach out and checked the engine upper RPM limit. 

It was set quite low. I knew it getting quiet. 5 years ago I had it just over 3000 RPM. This morning it was at about 2500, 2600. 

Didn't really matter not having any engine driven implements on. 

 

I corrected that. 

 

Engine RPM max:

Unloaded. 3300, 3325

Chipper engaged. 3275, 3295

 

Chipper RPM. 2475, 2500

 

Chipper could be a couple hundred rpm higher but we'll test it this way and see how it does. 

Likely leave it. 

 

 

I put all the decals on this morning. 

 

 

[Moparfanforever 926]

Looks great!! Pat yourself on the back for the quality job you did on it. 

 

[ebinmaine 78,003]

9 minutes ago, Moparfanforever said:

Looks great!! Pat yourself on the back for the quality job you did on it. 

 

 

 

Thanks! 

 

I'll have a video posted soon. 

 

Definitely needs the interior screen. Otherwise works excellent! 

 

 

[ebinmaine 78,003]

 

[ebinmaine 78,003]

We've been giving this ole beast some serious exercise lately. 

Time to adjust the belt and side knife plate already.  

 

 

[19richie66 17,848]

I need one of these in my life. Missed out on two of them. One day. 

[ebinmaine 78,003]

1 minute ago, 19richie66 said:

I need one of these in my life. Missed out on two of them. One day. 

 

You really do. Such an excellent implement. 

 

They pop up occasionally.  

[peter lena 9,815]

@OoPEZoO  looking right at it ?  first  flat belt  idler pulley after  chipper  blade set up  ?  would bet its lubrication heat / stress , failure ! self explanatory , tiny sealed bearing , unknown lube , violent incremental  bearing / belt stoppage, starts the typical  BELT WAVE OF RELATED STOPAGE . look up a similar  pulley  with a , larger bearing , with wide rubber side grease shields , carefully remove shields , small pocket flat screwdriver , small flat putty knife , wipe out . carb cleaner  flush  , lucas x-tra HD  green chassis grease ? hand pack , 550 deg  flash point , polyurea rated , stays with bearing , all my decks , pto,s , related , long past failures , were ELIMINATED with this lube , you know what  doesn't  work , make the change , would also  plan a mod to long unsupported , belt runs , that  heavy  loading power wave , is showing you the way . looks like a basic fix to me , pete   

[ebinmaine 78,003]

20 hours ago, ebinmaine said:

adjust the belt

 

38 minutes ago, peter lena said:

@OoPEZoO  looking right at it ?  first  flat belt  idler pulley after  chipper  blade set up  ?  would bet its lubrication heat / stress , failure ! self explanatory , tiny sealed bearing , unknown lube , violent incremental  bearing / belt stoppage, starts the typical  BELT WAVE OF RELATED STOPAGE . look up a similar  pulley  with a , larger bearing , with wide rubber side grease shields , carefully remove shields , small pocket flat screwdriver , small flat putty knife , wipe out . carb cleaner  flush  , lucas x-tra HD  green chassis grease ? hand pack , 550 deg  flash point , polyurea rated , stays with bearing , all my decks , pto,s , related , long past failures , were ELIMINATED with this lube , you know what  doesn't  work , make the change , would also  plan a mod to long unsupported , belt runs , that  heavy  loading power wave , is showing you the way . looks like a basic fix to me , pete   

 

 

 

On this particular application I have two options. 

A. Replace the idler pulley with a larger one. 

B. Larger (wider) belt.  

 

Yesterday between the sessions of chipping I adjusted the belt but found it is maxed out. 

I could also move the idler down so it's making a longer reach but that has potential problems involving the axle.  

 

The existing belt is 1/2 x 86. 

I've ordered a 5/8 x 88. 

More to come...