Question about Poulan 25cc 2-Cycle Gas Powered String Trimmer with Curved Shaft #P1500

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It won't rotate

The blade head keeps slipping down disengaging the internal rotating rod from it's first junction just above the bend, so it won't spin. How do you fix?

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It is slipping because the clutch is worn. The only cure is a new one.

Posted on Nov 16, 2008

  • Paul Evans
    Paul Evans Nov 16, 2008

    My previous comment is not correct. I believe you can add more grip to the extension by adding a washer under the clamp. I have not tried this, but it is worth a try. Be sure to examine the joint and make sure that it is seating properly. The attachment must be seated all the way, to insure that the shaft is engaged in the housing receptacle.

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Now, based on your description, it sounds like the 'anti-rotation screw' 791-182519 has backed out or is gone. This will allow the entire cutting assembly (gearbox forward) to slip off of the drive shaft housing and disengage the flexible drive shaft. If your cutting assembly is attempting to rotate while in operation, or the drive is not engaged as you described.
Do not continue to operate the unit until you get this fixed as you could strip out the drive shaft end or cause other serious damage to the equipment or yourself.

If it is the anti-rotation screw, then make sure to push the drive shaft housing firmly into the gear box and ensure to align the holes in the drive shaft housing and the gear box. If the screw is lost, then find one similar sized, but be CERTAIN that it is not too long as it will actually engage the flexible drive shaft and prevent rotation, or cut the drive shaft.

Back to the clamp: If it is still wanting to move, then remove the lock nut and place slightly oversized washers on the bolt head and the lock nut. This will force more pressure (does not take much) on the clamp and will lock it down.

I just fixed mine today (071809) in fact and had to drill a new hole in the drive shaft housing as the original was completely wallowed out.

I hope this helps.

DROPNDEAL

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