Angle Grinder - Component with three wires

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Messages
25,487
Likes
5,706
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK South
#1
Been given a 'dead' angle grinder, generic design with 10 inch disc.

I get continuity through the circuit, from plug up to switch and beyond, and from motor windings, through the brushes, back down.

It all stops at an unmarked lump with three wires. I assume it is a slow start device, delivering power progressively in relation to the disc momentum.

Its about an inch square and sits in the handle of the grinder.

Any idea what it is called and how to get a replacment ?
 

iwol

Specialist Contributor
Messages
692
Likes
16
My Satellite Setup
channel master 1.2m dish
technomate 6900,,and invacom 0.3 quad lnb
satlook micro
My Location
yorkshire
#2
its not the suppressor is it i cant see a generic grinder coming with a soft start
 

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Messages
25,487
Likes
5,706
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK South
#3
Would a supressor have three wires ?
Will try to get a picture in the next few minutes
 

mhku

Super Moderator
Staff member
Messages
4,712
Likes
20
My Satellite Setup
TM Nano ~ sg2100
My Location
Midlands
#4
Is it a contact relay? There is a similar box in my coffee grinder described as

MAZ_40 - Mazzer Grinder 110V Voltage Contactor
Fits all Mazzer Super Jolly and Major Grinders, and allows use of lower amperage power switches. $70.84 View Details
and looks like this
 

Attachments

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Messages
25,487
Likes
5,706
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK South
#5
Nah, this is a solid state thingy, all wires to it are sealed in the resin.
 

Lancelot

Specialist Contributor
Messages
3,638
Likes
8
My Satellite Setup
SS1.
125cm Gibbi with Channelmaster feedhorn and Inverto C120 twin.
36v H to H 62E - 61.5W
My Location
South central
#6
Where do the wires come from/go to CH ?
Might give a clue.


L.:)
 

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Messages
25,487
Likes
5,706
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK South
#7
Lancelot said:
Where do the wires come from/go to CH ?
Might give a clue.

L.:)
F*cksocks

Now I have taken the handle completely apart, it has markings.

XS-12/D3

which is a soft start device

http://www.chinapowertool.com/products/CompanySingleAccessoryProduct.asp?id=5387

Diagram embossed on heatsink is like this

__
l A l ------------------
l B l ------- M - ~
l l l
l C l------------------
l_l

Connections

Live from switch (red)

output to motor windings (blue)

third wire to switch (double pole) neutral (black)

Motor has direct path back to switch neutral , and there is a 0.33uF capacitor across the switch terminals

Where to get another one ?
 

Lancelot

Specialist Contributor
Messages
3,638
Likes
8
My Satellite Setup
SS1.
125cm Gibbi with Channelmaster feedhorn and Inverto C120 twin.
36v H to H 62E - 61.5W
My Location
South central
#8
My first instinct would be to phone round local tool hire shops and see what they do. Might even have a 'dead pile' you could raid for a beer ??



L.:)
 

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Messages
25,487
Likes
5,706
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK South
#9
Ive gone back to the manufacturer and asked for a sample (I've offered to pay the freight ).
 
Messages
1
Likes
0
My Satellite Setup
medion pc
My Location
uk
#10
it's the bridge, should have a DC regulater in there, have a look to see if any components are burnt, and check very carefully to see if the triac leads or heatsink are connected, most likely cause of failure
 

PaulR

Dazed and Confused Admin
Staff member
Messages
15,830
Likes
3,147
My Satellite Setup
-----------See sig-----------
My Location
Wirral, NW UK and Vaucluse, France.
#11
Unfortunately the post is over a year and a half old.

I'm sure that even Channel Hopper will have given up and thrown it away by now if he didn't find the answer.
 

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Messages
25,487
Likes
5,706
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK South
#12
I never throw things away.

It was a soft start device and had no luck with the supplier, so I bypassed it.

I do have to hold on slightly more securely when starting it, but apart from that, no other real issues.
 
Top