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Re: RL850/800 Self Maintenance

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  • johnz1967
    Hey, thanks for your reply. I don t have an option for drive test on mine (only service option is to set a passcode). The one I m concerned about is an 850. Is
    Message 1 of 8 , Jul 8, 2013
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      Hey, thanks for your reply. I don't have an option for drive test on mine (only service option is to set a passcode). The one I'm concerned about is an 850. Is there any "hack" for a user to get into this?

      --- In RoboMower@yahoogroups.com, "aceomeg" <aceomeg@...> wrote:
      >
      >
      >
      > --- In RoboMower@yahoogroups.com, "johnz1967" <johnz1967@> wrote:
      > >
      > > Hey all, any help appreciated....
      > >
      > > I have a RL850 now on its eighth year of service. It is draining batteries at a much faster rate than when new. I bought a used RL800 at a garage sale to have spare parts / emergency backup / etc.. but now use it to handle the back-yard and the 850 just does the front yard. Comparing the two when running the 800 sounds much smoother than the 850, the 850 almost sounds like its straining. Not that the 800 sounds brand new.
      > >
      > > My two major problems are: I'm in Alaska, no repair centers, shipping to/from one is not something I'm interested in paying for; Whatever board handles charging on the 800 isn't working, it won't charge a battery (checked fuses, replaced the plug-in charger), so I'm currently carrying batteries around and using the 850 to do all the charging.
      > >
      > > My questions are: What are the logical suspects for causing additional amp usage? Is there any maintenance or lubrication I can do myself to maybe tackle? I've done some internet surfing and didn't come across much.
      > >
      > > Thanks
      > >
      > > John
      > >
      >
      > Hi John,
      > I'm late to the party here but hopefully this is helpful.
      > You can do the drive motor test.
      > Basically stick a 2x4 under the drive wheels to get them off the ground. Make sure the front wheel is ON the ground. Then go to the service menu and select the drive test.
      > The controller can show you RPM and current for each wheel.
      > They should be pretty close to each other.
      > If one wheel is pulling a lot more juice than the other to keep the same RPM then there is a problem.
      > Supposedly the RL800 won't show the numbers, although I think mine did.
      > So go to service menu (Service->12321) and do the drive motor test, do Go button, let the test complete.
      > Note any error codes.
      > Do the drive motor test again, but while it is going press Go again to get the Advanced test which will show the numbers.
      >
      > I've also read that the bushings in the gear cage become worn and can offset the gears causing them to not mesh correctly.
      > I guess the repair would be bushing replacement?
      > I've seen bearing upgrades for some of the RL models on eBay. It looks as though they need to drill out the original bushing and use it as a guide for the bearing or something.
      >
      > One other place I'd look are the blades. Dull blades I would presume will eat battery life.
      >
      > -Regards.
      >
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