LB3200 Evolution Maintenance

Tools Needed

  • Phillips screwdriver
  • 4mm long hex (For motors, wheels)
  • 5mm hex (For back panel)
  • Flat jewelers screwdriver (or similar)

General Maintenance

  • Check motor mounts (4 on each motor)
  • Check wheel set screws (2 on each wheel)
  • Check front wheels for obstructions
  • Light Bulb (Post by TC'sdad on Bamabots Forum) : I went to the local electric supply store and they matched it to a 15W T7 DC BAY with a SKU of 15T7DC. It cost a whopping $1.80.
  • Sharpen Blade (scissor sharpener)

Extended Maintenance

  • Check gearbox mounting screws. I think the easiest way to check these without pulling the motors out is to see if the motor (silver metal part) can twist or move at all. They should be tightly connected to the black cylinder (gearbox) connected to the front of the motor. If they move at all, you should pull the motor assembly and tighten the four long screws using a jewelers screwdriver or similar. In my case, I also used pliers to get a better grip on the small screwdriver to make sure it is tight.
  • Clean/Re-pack gearbox grease. The procedure is pretty strait forward, the only catch is to make sure you put the gearbox back together in the same order you take it apart, as well as making sure you don't lose the 3 washer on the center set of planetary gears.

Blade Motor Brush Replacement

After 3 years of service, my blade motor began to make noise. Reading the forums, people spoke of the blade motor needing the brushes replaced. KA has made two items available to customers. A “Brushes only”, and a “Brush kit”. From my understanding, the brushes only is exactly that. If you look at the pictures linked below, you can see that the power wires to the motor are actually crimped directly to the brushes. So, if you choose this option, you will need to disconnect/cut the current brushes off, and either crimp or solder the new brushes on. I haven't seen the “Brush Kit”, but from my understanding, it doesn't require soldering. For this to be true, I would assume they will be sending you the entire end cap of the motor including the encoder, as the motor wires are soldered to this PCB.

  • Step 1) Remove the cutting blade.
  • Step 2) Remove the plug from the back of the blade motor.
  • Step 3) Loosen the underside bolt that allows you to adjust the cutting height. At this point, you should be able to just slide the assembly out of the chassis.
  • Step 4) Remove the four (4) bolts holding the motor in the plastic sleeve.
  • Step 5) Remove the two (2) bolts on the front of the motor that are holding the front and back end caps together.
  • Step 6) Gently slide the back end cap off to expose the brushes. At this time, the part of the encoder that is mounted to the shaft will also slide off.

Photo Gallery: Blade Motor Pics

 
maint/evolution.txt · Last modified: 2013/10/18 00:13 (external edit)
 
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