I've got a really old electric lawn mower that needs new brushes for the motor. I don't have the manual for it and it's no longer supported by the manufacturer, so I have no idea which part to get. Can I just use some generic brushes that are the same size, or is it important to match the hardness of the original?
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Re: Replacing motor brushes
The brush hardness will determine how long they last, so I would put whatever I could find if I can't find the originals. If they are softer , just have to replace more often, but if you have had it that long and just now needing brushes, you are doing good. -
Re: Replacing motor brushes
hi guys!
I also need new brushes for my motor. I have the motor with specifications like in this one https://www.mrosupply.com/product/26...AC_Motors_Pump but its very outdated
did you find the solution for you? can you advise something for me?
thanksComment
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Hi,
i am asking for some Help.
I have one of these Nescafe Aeroccino (Milk Frother) things with a bad motor.
The Motor didn´t start anymore and internet is full of users just swapping the motor for a Mabuchi RF-500TB-12560.
So i got a few of these from Banggood.
I swapped the motor and now i have a new fault condition.
In a working Frother you would press the start button, it will light red and work for a few minutes.
If you press longer it will light blue and just mixup the milk.
With the new Motor it just starts... -
trying to fix Philips toothbrush 4100 (HX369BK)
The battery started draining quickly.
After disassembling it, I discovered that the motor gets very hot when brush is off, which is apparently causing the battery to lose charge.
The motor is connected to contacts M1 and M2.
When I turn on the brush, 0.4V appears on these contacts, and the motor starts running as expected.
But when I turn off the brush, the voltage changes to 3.8V—exactly the same as the battery.
The motor gets so hot you can't touch it. And after 5 minutes, the battery drains to 0V.
(To...11-12-2025, 03:11 PM -
Hi folks. I have a Bosch GRA53 36V lawnmower that has developed a fault and will not spin the blade.
I should say for the purposes of guiding what how you can explain things to me that that I have only modest knowledge of electronics, own a basic multimeter and soldering iron.
The mower is four years old, out of warranty, discontinued and the brand has been sold to Honda who have iterated on the design a couple of times and now sell their own 36V mower. My mower was effectively a prototype when Bosch tried the 36V Bosch Professional range of garden equipment which... -
Hi all forum members,
Found this unknown motor discarded in a junk yard and took home for learning experience. By the look of it, I suspect it is taken out from a type of air blower probably running on ac power. I used digital multimeter on ohm/resistance scale and it doesn't read anything on those 2 black wires. So, this motor is not shorted and should be good to run.
Correct me if i am wrong on the initial test.
Can anyone kindly advice on how to test run this motor based on visible external two black wires. Fyi, i don't see any marking on the motor body nor smell anything... -
(TL;DR skip the first paragraph)
I encountered my first dead motor run capacitor at a customer this week.
For some fields I guess it is a very common occurrence but the usual way for industrial machines here is to use 3-phase motors.
(Unless a servo motor makes more sense that is).
But for some reason this 3-phase machine uses a 1-phase motor for its liquid coolant pump.
The pump would run but sometimes trip the 10A breaker.
I monitored it starting and stopping for over an hour until it finally stopped in a specific spot between its windings:
Then it could...
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