If there are any If you are lucky, this is a universal motor that has replaceable brushes, and I would check that first.
22.
Commutators are used in direct current ( DC ) machines : dynamos ( DC generators ) and many DC motors as well as universal motors.
23.
The Mk 40 was a universal motor developed from the Mk 4 2.75 FFAR, and could be fitted with different warheads depending on the mission.
24.
In recent times, a range of lightweight portable thickness planers have become available which use universal motors and are much less expensive than industrial versions.
25.
The universal motor is not as durable or as quiet as a brushless AC motor, but it offers more power relative to its size and weight.
26.
However, much larger universal motors were used for electric locomotives, fed by special low-frequency traction power networks to avoid problems with commutation under heavy and varying loads.
27.
I have an electrically-braked chop saw but I believe it is a universal motor rather than a pure induction machine so it's easier to rig for dynamic braking.
28.
Instead larger universal motors often have " compensation windings " in series with the motor, or sometimes inductively coupled, and placed at ninety electrical degrees to the main field axis.
29.
Nissan Motor Company entered the Philippine market in 1969 with the appointment of Universal Motors Corporation ( UMC ) as the authorized assembler and distributor of Datsun cars and pickups.
30.
These machines could easily be implemented with universal motors or more modern DC brushless motors, but older ones tend to use a capacitor-start induction motor with a pause between reversals of agitation.
