Photo Index - Hammond Machinery Builders, Inc. - ND-10 1HP-3PH-10 inch

Machinery Photo Index

Manufactured/Badged by:
Hammond Machinery Builders, Inc.
Kalamazoo, MI

True Manufacturer:
Hammond Machinery Builders, Inc., Kalamazoo, MI

Machine Specifications
Machine Class:	Metal Working Machinery
Machine Type:	Grinder, Bench
Machine Size:	10'
Submitted By:	Steven Miccio

Machine Specifications
Description/Model:	ND-10 1HP-3PH-10 inch
Date of Manufacturer:	1945
Serial Number:	995
Last Updated	12/9/2021 1:12:21 PM

Comments:

Machine Info: There are a few catalogs out there you can find by search "Hammond of Kalamazoo Nd-10". This will give you more information then i probably know. From what i have learned there are two models of this machine, the OK and the ND. The "OK" from what I can gather just means its the "okay" version and this version has no built in dust collection. The "ND" stands for "No Dust" because it has built in dust collection. The ND models do vary in styling because of their size and manufacturing years, some units have different venting for the blower or have soft tubes collecting the grinder housing to the blower.

Backstory:
I purchased this machine from and auto restoration shop that was going out of business. Needed a forklift to get it out as this machine weights about 600 pounds. After bringing it home and testing it I decided I wanted to to a full restoration on the grinder because it seemed to have 100% of its parts. After stripping a majority of the auto grade paint, most of which was done improperly,

Color:
I found the original color which was this light green color. After doing some research and finding some old catalogs I determined that the original machine was actually green and had some white accents. After I had finished stripping all of the paint from the machine I got it all primed and painted, separating which parts I wanted green and which parts I wanted white.

Mechanical Restoration:
From there I went ahead and deal with some of the mechanical issues I wanted to resolve. I replaced the original shielded bearings for sealed bearings to avoid fine dust getting into the bearings. I managed to find the correct size bearings using the Accurate Bearing PDF provided by OWWM. The correct dimensions are 25mm x 62mm x 25.4mm. Options for bearings are either 63305 2RS or W305 -2RS. I cleaned up the inside of the motor grinder and reassembled it. DO NOT SIT THE LEAD WIRES UNDER THE MOTOR HOUSING, you will crack the old wire casing and will need to heat shrink them or have the leads redone. As for the blower motor, I couldn't figure out the best way to remove the bearings so I just cleaned them out as best I could and repacked them with some grease.

Wiring:
The wiring on this machine was a bit difficult but one you have a clean understanding it becomes pretty simple. I recommend sketching out the original wiring you see and then trying to mimic it. For me however the previous owners had done some weird modifications. There is a transformer on the side of this unit to run the lights to take it from 230v to 115v, however, they ended up hardwiring a 115v wiring into the transformer. I tested the transformer and it worked perfectly so I rewired the unit to use the existing transformer. As for the original fused switch, it was too far gone and I wanted to have something with some original tags. Luckily for me, I managed to find a free switch that was exactly the same on FB marketplace! So I swapped the old for the "new" and wired it all up. Something that I found while disassembling this unit is you would need to disconnect a bunch of wiring to be able to pull it apart, so I decided to try and make the unit more modular. I added aviation plugs on both the dust collection and the grinder motors so if I need to pull one of them apart I could do it with ease.

Mobile Base: I have to give credit where credit is due, I copied this from another post on VintageMachinery. I used old oak boards I had from a pallet and I used my thickness planer them down to bring out their inner beauty. I bought some decent casters of Amazon and threw it together with some screws and lag bolts. I recommend building the mobile base before fully reassembling the unit, it is very very heavy.

Questions: If anyone has any questions regarding this restoration or needs some photos don't be afraid to send me a message. Im on here and OWWM under the name YoungRestorer. Or if you just wanna chat about the restoration it self give me a holler.

Photo 1:

Comments: What I started with. Had this thick white paint on it and needed some serious help!
Source: YoungRestorer

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Photo 2:

Comments: Me tearing down the motor, doing exactly what i said NOT to do in my post
Source: YoungRestorer

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Photo 3:

Comments: Bearing Still on the arbor, needed my automotive bearing pullers to get them off
Source: YoungRestorer

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Photo 4:

Comments: The Priming Process
Source: YoungRestorer

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Photo 5:

Comments: Rewiring EVERYTHING
Source: YoungRestorer

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Photo 6:

Comments: Final Product
Source: YoungRestorer

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