How is the Homelite hedge trimmer separated so I can repair the pull cord UT40502

there is a screw in the hole of the clutch housing bell torx bit i think its a #20

hello sir, ryobi trimmers and other models removal of the bell housing,removal of the metal bell housing,or clutch drum, on models 780R & 790R, here is what you do. after removing the trimmer & shaft assembly.remove the spark plug insert a screwdriver in the cylinder to keep piston from moveing. to remove the bell housing twist off the spring and using a T20 TORX screwdriver unscrew the retaining screw in the center of the bell housing (normal r/h thread) . push down firmely try not to strip screw head . you should be able to remove clutch housing.remove clutch using a pair of channel locks,works for me, (normal r/h thread) you should be able to remove front engine cover to repair what you need to.coil,pull stsrt, hope this works,. this solution applies to all trimmers with clutch removal~~~hope this helps,,any comments welcome,thank you. ``

hello sir, ryobi trimmers and other models removal of the bell housing,removal of the metal bell housing,or clutch drum, on models 780R & 790R, here is what you do. after removing the trimmer & shaft assembly.remove the spark plug insert a screwdriver in the cylinder to keep piston from moveing. to remove the bell housing twist off the spring and using a T20 TORX screwdriver unscrew the retaining screw in the center of the bell housing (normal r/h thread) . push down firmely try not to strip screw head . you should be able to remove clutch housing.remove clutch using a pair of channel locks,works for me, (normal r/h thread) you should be able to remove front engine cover to repair what you need to.coil,pull stsrt, hope this works,. this solution applies to all trimmers with clutch removal~~~hope this helps,,any comments welcome,thank you. 11

motor smoking is an electrical fault internally
brushes , armature of field windings problem
take it in for a proper diagnosis

The proceedings are as follows: 1. on the PHS 46 G release all Phillips screws. 2. On the underside of the trimmer, remove the metal cover.(4 screws). 3. Slide the scissors form as far as possible to the front , then we see two more small Phillips screws . Loosen these screws too. Now, the entire blade detaches from the ex-center gear. 4. The housing can well be apart!

Had the same problem: when I turn on the trimmer, the motor would hum but the blades won't move.
What I did:
1. Sprayed a ton of wd40 between the blades
2. Took a screwdriver and kinda wedged it between the blades to get them unstuck. Also removed some guck between the blades.
And it worked!

Remove the housing with the coil in it. Remove the screw on it, its the screw with about 3/8 washer on it. It is where the old rope was hooked up, and should still have a piece of it under the washer. It has a D shaped groove under it. take the new rope and burn the frays on it make it stiff and small. Turn the pulley around and around until it gets real tight, and align the hole in the pulley with the hole in the shroud. Take a c clamp or visegrips and clamp it in place if you can. I just hold it, then feed the rope through the hole in the shroud and pulley and rap it round D shape groove. Replace the screw and washer. Tighten it up then let go of pulley. It should zip up real quick and all way to the handle, and be real tight.

Mine was doing the same thing so I took the gear box cover off made sure it would still rotate then I packed it full of gear grease. That did the trick it runs perfect now. Mike

Homelite UT40502 gas hedge trimmer, engine runs fine but
cutting blade will not move back and forth.

a homelite is disposable, get a new one. You can pull it apart and see what broke and how much the new parts are. worst case, get the new one.