Question about Garden
I started my TB90BC string trimmer and the cord came out in my hand. I have removed all the screws I can find, but the red cover is still firmly in place. This is the first trouble I've had with this piece of equipment. How do I get the red plastic cover off to re-attach the string?
Remove the back cover that covers the muffler area and 1,2,3 switch and disconnect the throttle cable. Now remove the 3 screws that hold the engine assembly, they are forward of the red cover (towards the weedeater end). Slide the entire engine assembly out. Now you will see a silver piece that looks like a flat funnel, this is part of the clutch assembly, use the same allen wrench to remove the screw in the center of the hole. You will see the clutch plates. Now remove the spark plug, fold a 1/4 diameter or smaller piece of nylon rope in half making a loop, feed this inside the spark plug hole stuffing it in, you can grab the clutch and turn in clockwise until you feel resistance. (this is the piston smashing against the rope, you may have to repeat the process until it does not spin). remove the clutch springs with needlenose pliers and slide the clutch plates out. Now take some channel lock pliers and grab the shaft and turn it clockwise. Once it breaks free you can unscrew it completely. (Keep in mind there are washers, along the way) Now you can slide the unit away from the red cover, but ensure you disconnect the red and black kill switch wires. There is a silver cover, that shields the rope reel, remove those screws to expose the reel. The replacement cord needs to be the same diameter. You will see where the knot and broken end is. The reel has a hole in it where you feed it from out to in, pull the rope through where you can tie an overhand knot, and push it back in, take your time and dont fray the rope. You will see a slot on the edge of the wheel, you can hook the rope inside this slot and use it to spin the wheel clockwise until it stops. Do not feed the rope around the reel! While maintaing the tension, feed the free end of the robe through the cover through the silver bushing, now feed the end through the handle and tie a knot. Slowly guide the rope out of the slot and let the spring tension feed the rope on the reel. Now put it all back together...
Posted on Jul 25, 2010
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Posted on Jan 02, 2017
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