Electric

I have a 230 volts electric motor driven lawn mover. When power is switched on it gives a hum and does not run. But if you give a help to turn the motor, it will run even with a load. I assume it is the capacitor. Please let me know how to replace the capacitor.
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The main function of a lawnmower motor run capacitor is to help regulate the flow of electrical current in the motor. When the motor starts, it requires a high surge of current to get it going. This high surge of current is supplied by the capacitor, which stores energy from the electrical circuit.
Electric lawnmowers may cut out for two main reasons: A faulty power switch or a loose cable connection. An overheating motor can cause the thermal cut out to trip.
Battery Voltage

Most of the battery operated lawn mowers come from 36 to 120 volts range. Models with higher voltage are suitable for large yards.

Answer: There are three common types of single-phase motors named capacitor motor, shaded pole motor and split phase motors. Shaded pole and split phase single-phase motors do not require a capacitor to run. While capacitor motors run with the help of capacitors.
Capacitors are labeled with what microfarad value (abbreviated mfd or uf) that they should be. If your electrical meter displays a microfarad value that is too high or too low, this is a sign that your capacitor is bad.
Purpose of Motor Capacitors

A motor capacitor is an electrical storage unit that stores and releases energy to increase the current to one or more copper windings of a single-phase motor to create this extra boost and increase the motor torque.

The circuit includes a fuse, the ignition switch, brake switch and blade switch. First, check for a blown fuse because you can usually see a blown fuse just by looking at it. The fuse on most riding mowers is connected to the small red wire that connects to the starter solenoid post.
In Summary. Most problems and issues seen in lawn mowers are easy fixes that you can do yourself and parts cost well under the price you would usually pay for a new lawn mower. This means that in most cases, it`s much cheaper to repair your lawn mower than buy a new one – but not in every case.
Some bad AC capacitor symptoms to watch for are warm air blowing out of your air vents, a humming noise or burning smell from the outdoor AC unit, unusually high electric bills, or your air conditioner starts turning off suddenly or not at all.
When a capacitor short-circuits, the winding in the motor may burn out. When a capacitor deteriorates or opens, the motor has poor starting torque. Poor starting torque may prevent the motor from starting, which will usually trip the overloads.
A bad capacitor prevents the exterior unit from properly functioning, which hinders the cooling process as a whole. Second, improper voltage delivery to exterior unit components forces the system to work harder as it attempts to perform its job. Additional components often sustain damage due to a faulty capacitor.

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Lawn mower cranck but wont start…
ANSWER : Since you already checked for spark and air I would drain all the fuel out of it and check that fuel for water. Over time some lawn mowers end up with contaminated fuel. You can see the water sitting on the bottom of the fuel if you let it stand for a bit in a small plastic bowl.

Be sure to empty and dry out you fuel can as well. Especially if the mower stopped running right after a refuel. Which is a good sign your gas can is contaminated too.

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ANSWER : Should a plug or cap on top of transaxle.

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ANSWER : Cable damaged …renew cable . ..if does not work try condenser.

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ANSWER : All, I thought my carb was shot, so I replaced it. Still, start but no run (and had to use starting fluid). THEN!!! I noticed the spring to the “rev limiter” (just below and towards rear of carb) was not “tight”. The stupid bracket that holds the end of that spring had been bent down ~1/16″ and that caused all this heartache. CHECK YOUR REV LIMITER!!!

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Lawn mower motor runs good, the drive wheels run good but the blade won’t stay enguaged. Thanks
ANSWER : Check your cable that controls the blade engagement.

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Lawn mower will start and run for 5 seconds and shut down
ANSWER : Will it stay running with your choke on? if so then clean your carb. if not then look for a blockage from tank to carb. ie fuel shut off, deteriorated fuel line. plugged filter etc

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Lawn Mower Won’t Run
ANSWER : Ya didn’t give much info but it sounds like the carb had plenty of time to varnish up. take the carb off and clean it make sure you take the fuel bowl off and clean the floate and floate needle good. an auto parts store will have what you need to do everything with

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Will not start turns over has spark the engine was running and killed and will not restart
ANSWER : If you have good fuel to the plug and a good spark and it still does not start it could be a timing issue, check the flywheel key has not sheared.

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