Meade lxd 75 mount problems.

[Martin Whitaker]

Hi, has anyone any ideas as to why my Meade lxd 75 go-to mount will not slew,I tried it indoors yesterday and the han control apeared to operate correctly ,accepting date and time changes but did not slew to any star positions.

I first tried it with my 95 amp hr battery but no joy then with a mains transformer again to no avail.

Battery almost new and always on trickle charge.

Could the motors be somehow siezed or is it a hand controller issue?

Any ideas.

Cheers.

[brantuk]

Did you have the clutches locked? Sounds obvious but it may be an oversight

[CGolder]

Hello,

I have one of these mounts...

do the motors make any noise? what happens when you do a motor calibration?

Colin

[Martin Whitaker]

Hi brantuk, yes they were locked, this mount has been a right pain in the neck, thats why I switched to Celestron, not sure what to do,probably take the motor covers off to see if they are jammed /fouled etc. its probably only had 8 hrs of use max in 7 years.

the scope is very good though.

Cheers.

[Martin Whitaker]

Hi Colin, yes motors do seem quite loud at times, not done a motor calibration-don't know how to!

Cheers.

[CGolder]

Hi Martin,

Thats good news.

LXD75_Maintenance_101

I used that site to learn how to tune and maintain my LXD75.

If you go into the setup menu and mount (i think), there is a calibrate motors, then you will need to train them.

However the mounts axis should still move without anything else being done provided the worm drives are not wrecked.

I would advice to calibrate and Train and if that fails i would use the guide posted above and make sure it all looks right.

If you have any specific questions ill do what i can to help

Colin

[Martin Whitaker]

Hi Colin, thanks for that, will try the calibrate thing and see if I get any life.

I have not tried to up-date software from Meade to handset, do you think this could be a possible problem?

Cheers.

[CGolder]

nah, i only updated mine the other day, should work without it with no problems

[Neil I]

Martin

Have you checked the connections on the cables. I had similar problems some time ago and it turned out to be a broken wire in the lead connecting the handset to the mount.

Cheers

Neil

[Martin Whitaker]

Hi Neil, no because the hand controller did appear to correctly start up as normal so I may have wrongly assumed all was ok with that side of things.

Anyhow I started to dismantle the motors from the scope and straight away found that the drive wheels from the motor and the screw were not tightened to mesh correctly.

Cheers.

[Neil I]

Glad you've found the fault. If you've taken it apart it would be worth checking the grub screws that hold the gears to the motor & worm shafts as well, as these have a tendency to come loose.

Cheers

Neil