CMS-Japanese Motorcycle Supply Parts

GMF Handy 125mm Bench Grinder Restoration and Information


Before using this site please read the site disclaimer. Also please note that any links provided may be part of an affiliate programme (viz. eBay, Amazon) which helps support the site as I will earn a commission when visitors make a qualifying purchase.


Here is a little GMF grinder unit - the 125mm Handy Grinder. Today I'm pulling it down for a restoration - let's see what's inside it!

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

The sticker was a little curled:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

This looks a bit like the NSW authority sticker seen on other GMF grinders:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

On the back of the grinder we can see the country of origin:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

Also the model number of this particular grinder - it's the catchy SG3A5A/2Q. 240V, 2 amps - so it's about 480w input, no idea what the output is. Each end has a black guard held in by three screws:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

Looks like there used to be some clear plastic shields held on by a screw above each wheel - long gone now:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

The end caps removed:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

I'd hazard a guess that these are the original wheels - you can see "Made Expressly For GMF Electric Motors" on the side.

The top half of the grinder is held on to the bottom by four screws - two hidden next to each grinding wheel guard:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

Four bolts with washers:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

The halves separated:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

The back of the power switch:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

It pulls out of the cover:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

The bearing seat in the top half:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

The bearing around the shaft in the bottom half:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

A cooling fan:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

The bearing on the other end with some washers:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

The bearings look to have some felt around them - perhaps to retain oil, or damp vibration? There is a plate on the underside which needs to be accessed before the stator can be pulled out:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

Closeup of the info:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

Is that CRC Motors Pty Ltd? One screw holds the plate in:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

Beneath:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

Shaft and stator removed:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

Lower half:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

The grinding wheel nuts are removed with a 19mm wrench:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

There is a circlip around the shaft:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

The bearing removed:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

Looks like the remnant of some lubricant on the shaft:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

The fan end bearing has some shims on either side of it:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

The stator removed:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

The cases, emptied:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

Post-cleanup:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

Markings on the inside:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

The cases are cast aluminium, the electrical plate on the underside is steel:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

I had some silver paint that needed using - post-paint:

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

Here is some information and a restoration review of a GMF 125mm Handy Grinder, made in Singapore.

More to come.



Search MotoFaction:
 



Follow us on Facebook!

Follow us on Instagram!


CMS-Japanese Motorcycle Supply Parts

Search MotoFaction:
 


In 2019 the server has had to double in capacity to support the growing site... please consider dropping the site a donation to help cover the costs! Check out our Patreon for support options, buy a shirt, buy our apps, use my NordVPN affiliate link to sign up to their service or donate via Paypal:

Paypal $5 link ->>
Paypal $10 link ->>