Stihl FS 100 RX Trimmer?

Discussion in 'Lawn Mowing' started by SMITHSCAPE, Jan 26, 2010.


    STIHL GUY LawnSite Fanatic
    from CT
    Messages: 5,226

    has anyone tried running attachments with the 100RX or do they just not fit??
  2. mowerbrad

    mowerbrad LawnSite Fanatic
    Messages: 6,268

    You can run attachments on the 100rx, but it does have the hallow shaft, so it is more likely to break and just doesn't have the strength of the regular shafts. Stihl doesn't recommend it, so warranty could be void if something were to go wrong.
  3. Saurkraut

    Saurkraut LawnSite Member
    Messages: 61

    the guys are correct its a different shaft. Stihl designed it as a commercial LINE trimmer only. I have had to deny warranty on a couple already, but only because the donkeys brought them into the shop with the attachments on them....:hammerhead: If you have a decent dealer they probably wouldn't say anything.
  4. Turf Dawg

    Turf Dawg LawnSite Gold Member
    Messages: 3,719

    They must be some thin hollow shafts. I know my Kaw has a hollow shaft and although you are not supposed to run blades they do allow the hedge trimmer and reciprocator attachment.
  5. snowjeep

    snowjeep LawnSite Senior Member
    Messages: 463

    The 100 will fit attachments but wont like it. We have both and love the balance and weight savings. I put the hedge trimmer on the 100 by accident for a large bush job. And with in 2 weeks the head cracked where it attaches to shaft. So if only trimming go with the 100 if you want more go with the 110.

    NORTHMAN LawnSite Senior Member
    from NJ
    Messages: 313

    Could you put a solid shaft from the FS 110 in the FS 100 RX when you want to run attachments?
    vestaviascott likes this.
  7. groundskeeperllc

    groundskeeperllc LawnSite Senior Member
    Messages: 726

    ???? just use the 110 to run the attachments,

    I used to run 100rx, they are increadibly light for the power, but you have to run them with the guard on, the head will turn on you if you take the gaurd off, thats why i switched to the 90's
  8. Richard Martin

    Richard Martin LawnSite Fanatic
    Messages: 14,699

    It shouldn't have done that. Even if they do just put a little Loctite® on the tube and the head won't rotate anymore.
  9. Saurkraut

    Saurkraut LawnSite Member
    Messages: 61

    Its all about the twisting torque. You probably can get away with running the head attachments that don't need alot of torque to spin the gear boxes (i.e. hedge trimmer, pruner attachment, and tine tiller). Every one that had a twisted shaft the guys had metal grass and cut blades on them. I've never had a kawi shaft out of a machine but I would imagine they are pretty close. The 100RX was essentially made strictly as a commercial line trimmer... Alot of power but very light.

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