It could be the cord, the switch or the motor. You can test the cord and switch with a multimeter set to test impedance. (ohms) If the cord and switch test out OK then the problem is likely with the motor. You will need to take the motor to a repair shop to be tested.
The cord is part #UT41002A-31, the switch is part #UT41002A-38, and the motor assembly is part #099015003006. All of these parts are available from http://ereplacementparts.com.
Good luck with your repair!
-Mark
Response #2 Posted By Jim T 09/23/2009
This a reply to my own question. I took trimmer apart carefully. A bunch of small screws and one large one. I then took several digital photos of wiring and locations of items. You can zoom in later if needed. Pay attention to wiring. I then bypassed switch with power wires. The motor ran. Its the switch assembly ! Ordered 2 just in case. Switch assembly is 10.5 Amp. The motor is only 6 AMP. Do not know why it went out. Would not increase amps, if motor burns out $55 , Its cheaper to buy reconditioned unit. Thanks for responding ! Thanks !
checking the motor Question by linda 09/06/2009
how do i check if the motor on the RY41002 trimmer has gone bad or if it is just the switch?
You won't be able to test the motor without specialized equipment but you can definitely test the cord and switch. If the cord and switch are OK you can pretty safely assume that the motor is bad. You can test the switch and cord with a multimeter set to measure impedance. (ohms) Check continuity through the cord then through the switch. If both test OK the problem is most likely with the motor.
The cord is part #UT41002A-31, the switch is part #UT41002A-36 and the motor is part #099015003006. All of these parts are available from http://ereplacementparts.com.
I hope this helps with your repair!
-Mark
RYOBI STRING TRIMMER REPAIR Question by CHARLES 08/24/2009
After reading some questions on the forum I see the need to rephrase my question. I have a RYOBI R41002 electric string trimmer that had several switch assembly failures while under warranty and has now failed again (out of warranty). I want to replace the switch/spring/trigger myself and wonder what will happen when I separate the halves of the housing. Is anything likely to go flying off or should everything stay in place provided I am careful? I've had experience over the years repairing various things so I'm not a beginner.
Any thoughts/comments/advice will certainly be appreciated.
Very easy - I just did this. Lots of screws but the halves separate easily. Just make sure you see the wire routing path. The switch itself has a spring but it doesn't pop out when you take the side off.
SWITCH REPLACEMENT Question by CHARLES 08/24/2009
Can the switch and trigger assembly on a RYOBI RY41002 be replaced without removing the motor assembly?
I have a RYOBI R41002 electric string trimmer that had several switch assembly failures while under warranty and has now failed again (out of warranty). I want to replace the switch/spring/trigger myself and wonder what will happen when I separate the halves of the housing. Is anything likely to go flying off or should everything stay in place provided I am careful? I've had experience over the years repairing various things so I'm not a beginner.
Any thoughts/comments/advice will certainly be appreciated.
