¿ªÔÆÌåÓý

  1. Losmandy_users
  2. Topics

Gearbox replacement instructions for G11+OPWB

 

Hello all,

I need to repair/replace the RA gearbox on my G11 with OPWB?and Maxxon?motors. Looking up instructions, I can see that this is relatively simple for standard worm/block with worm gear cover. However, with the high precision worm and OPWB, I do not see a removable cover.

Is there a set of instructions for this? Ideally, I wouldn't want worm adjustment to change because the mount has performed really well.

Regards
Hemant
 

Hermant,

If you have a gen I OPW where the gearbox attaches directly to a plate fastened to the machined OPW you are going to have to remove the entire assembly as a unit. This is one of the major advantages of the early OPW, it allowed the use of a solid coupler because perfect gearbox to worm alignment was possible because the worm and gearbox moved as a single assembly. Unfortunately to gain access to the set screws on the coupler you must remove the entire assembly as a unit as access is from under the OPW.??

The gen II OPWs will also likely mess up your backlash adjustment. But at least it is easier to gain access to the set screws because you can just remove the OPW from the blocks by removing the bearing block retaining fasteners and lifting the OPW block carrier backbone gaining access to the set screws to allow separating the gearbox (which is attached to the mount's worm gear deck plate) from the worm coupler.?

I have never seen or found any written directions for the gen I OPWs. For gen II OPWs I think there are videos on YouTube.??

--

Chip Louie Chief Daydreamer Imagination Hardware?

? ?Astropheric Weather Forecast - South Pasadena, CA?
 

Hemant,

Please post a pcture so we so we can see what you have. There are at least three different arrangements, as chip identified in his post.

Peter

1 - 3 of 3