Evolution Rage Mitre Saw Problems

  1. anto Forum Supporter

    Messages:
    854
    Location:
    Ireland
    I've had an Evolution Rage mitre/chopsaw for a number of years and it has performed faultlessly, until yesterday.
    When cutting the motor sounding like it was revving up and down. One minute going at normal speed, the next at a faster speed.

    Is this likely to be brushes or is something else the matter?

    Thanks,
    Anton
     
  2. The_Yellow_Ardvark

    The_Yellow_Ardvark Member

    Messages:
    11,907
    Location:
    England
    Check the gears on the end of the motor to saw blade. They can wear.
    If they are good. The motor is on the way out.
     
  3. charliecambs New Member

    Messages:
    13
    Location:
    cambridgeshire
    i had similar issue. Evolution said brushes but when i removed them they were fine
    I thought i'd remove the motor end cover (this was the 255mm sliding mitre saw) and found a small plastic speed sensor on the end of the motor shaft had cracked. dab of superglue and screw back in and all good for a year so far.

    it was out of warranty as was a "grade B" from their ebay shop so nothing to loose as an ex electronics engineer.
    just be careful all un-plugged and i suggest sheet of white paper under to catch any loose parts
     
    anto and slim_boy_fat like this.
  4. slim_boy_fat

    slim_boy_fat Forum Supporter

    And the blood....:scared:
     
  5. Ashley Burton

    Ashley Burton Member

    Messages:
    3,050
    Location:
    Northamptonhire
    I rebuilt mine when the motor exploded & let out the magic smoke :laughing:
     
  6. skotl

    skotl Forum Supporter

    Messages:
    6,757
    Location:
    Edinburgh, UK
    Apologies for the dumb question, but is the blade definitely done up tight? Mine gives the impression of the speed "hunting" if the blade is loose (dangerous, too, I know!).
    At least if that is what's up is a cheap fix!
     
    zx9, mrsbruce, Dr.Al and 3 others like this.
  7. anto Forum Supporter

    Messages:
    854
    Location:
    Ireland
    Good shout actually. My da had the blade off a few weeks ago fixing a spring so perhaps its worked it's way loose again.
     
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  8. skotl

    skotl Forum Supporter

    Messages:
    6,757
    Location:
    Edinburgh, UK
    Also, and to show my ineptitude, I've had the saw 2 or 3 years and only discovered the button to lock the blade a month or two back :ashamed: until then I'd been using a screwdriver in the teeth to lock it while I tightened it.
     
    hunter27, rockweasel and slim_boy_fat like this.
  9. anto Forum Supporter

    Messages:
    854
    Location:
    Ireland
    :o
     
  10. skotl

    skotl Forum Supporter

    Messages:
    6,757
    Location:
    Edinburgh, UK
    Is that :o cos I'm a plank or :o cos you've just realised the same?

    (either answer is fine :D)
     
    anto likes this.
  11. anto Forum Supporter

    Messages:
    854
    Location:
    Ireland
    Cos you're a plank :laughing:

    Sorry :ashamed:
     
    skotl likes this.
  12. skotl

    skotl Forum Supporter

    Messages:
    6,757
    Location:
    Edinburgh, UK
    Fair play :)
     
    anto likes this.
  13. anto Forum Supporter

    Messages:
    854
    Location:
    Ireland
    I once tried to lever a wiper arm off its spindle with a pry bar using the windscreen as a fulcrum...... I think we are all planks at some stage :D :laughing:
     
    Dr.Al, skotl and Chillitt like this.
  14. skotl

    skotl Forum Supporter

    Messages:
    6,757
    Location:
    Edinburgh, UK
    Hah. My brother put an ironing board in his company car VW golf. The end was right up against the windscreen, but the tailgate wouldn't close.
    He pushed the tailgate. Windscreen bounced off the bonnet and shattered on the pavement :D
     
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  15. anto Forum Supporter

    Messages:
    854
    Location:
    Ireland
    I have discovered something similar on mine.
    Little plastic end cap has broken. It seems to contain a magnet, which from an exploded parts diagram is a "constant speed magnet". Would you happen to have a pic of yours for reference?
    I have it screwed back in so it should be doing its job.

    However the saw is still rotating at a far higher speed than it normally would. I can also see blue sparks from inside the motor housing.

    Brushes have plenty of life left.

    Is the saw motor kaput?
     
  16. rockweasel Member

    Messages:
    977
    Location:
    none

    The locking button fell out of mine so I now stick a screwdriver down the hole.
     
    skotl likes this.
  17. charliecambs New Member

    Messages:
    13
    Location:
    cambridgeshire
    Hi sorry I don't have pictures. As i recall there was a screw in the end of the motor holding a plastic ring which was in place but cracked and split. I removed screw used some mitre bond to close the split put screw back and it was fine.
    Did you remove/ replace the brushes in the original positions? They will be worn on to the commutator and may be bedding in.
    I wouldn't think it would run faster as i think the controller would be the soft start /stop and maybe apply more volts to maintain speed under load.
    If I have a few minutes tomorrow I'll try and remove cover and photograph it.
    Not sure where the actual sensor is though?
     
    anto likes this.
  18. R-D-R Forum Supporter

    Messages:
    1,054
    Location:
    Derbyshire - England
    I had one once it stared hunting when under load but it was actually the blade slipping. The arbour and nut had worn.
     
    zx9 and skotl like this.
  19. charliecambs New Member

    Messages:
    13
    Location:
    cambridgeshire
    Due to the current "quiet" spell i finally took a look at the laser on my Rage. it had gone from a sharp line to a red blurr.
    Found the laser near the hinge and popped off the clear plastic cap. It was cloudy. Few minutes with 400 wet and dry + water and same again with T cut and its back to a sharp line.
    Think its right in line for sawdust and hot metal shards! might try a clear plastic shield but TBH didnt use it much.
    Another little job ticked off.
     
    slim_boy_fat and skotl like this.
  20. tom 748

    tom 748 Member

    Messages:
    139
    Location:
    scotland
    check the brushes,take out and clean
     
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