3 replies to this topic

[Connorrv]

Not overly sure how to describe is, but my HEQ5 RA axis is rather stiff in some spots, which makes balancing a bit hard. I bought the mount second hand, and noticed it when balancing. I thought it would just be the bearings, to which yesterday I replaced all the bearings in both axis’, but this didn’t help with the stiff spot. I noticed the stiff area kind of changes when I adjust the two worm engagement grub screws. I’ve change the preload on the tapered bearing, which didn’t help either. I used an abrasive to try and remove some material off of the worm gear casing (not the actual worm gear), because I thought they may be colliding at some point. I’ve cleaned everything, I sanded some paint off of the connection point of the worm gear casing and the plate. I feel like I’m running out of ideas. The mount it smoother with the new bearings, but it’s still stiff in a location, that can change based on the tightness of the two engagement grub screws. The grease I used was Parktool Polylube, which I was told was fine to use. Any advice will be greatly appreciated.

[bignerdguy]

It may not be the gears, it may be the bearings.  Sometimes the bearings can have the grease dry up especially if the mount has been used a lot.  you might want to try giving your mount a check to see if the bearings need to be serviced and regreased.  See here:

 

https://www.youtube....h?v=rsr7m1ejjVU

 

You might also need to adjust the backlash somewhat after you do this.  see these two videos:

 

Part 1:

https://www.youtube....h?v=kohGi4uiC5c

 

Part 2: 

https://www.youtube....h?v=Hg3OK2oBTbs

Edited by bignerdguy, 06 February 2025 - 01:25 AM.

[michael8554]

The OP has changed and greased the bearings !

 

When the clutches are released the worm is no longer connected.

 

So any binding may be due to preload, or misalignment of the bearings.

[Connorrv]

What would be my next move in order to get it working properly? Is it possible that the shaft could be bent? Not sure if this matters too much, but when I put the work gear on the shaft then into the housing WITHOUT the other small housing piece with the gear, etc, the mount spun fine. I’m assuming that the issue lies within the connection of those parts.