From the picture(s) supplied it looks as though the end of the shaft has tolerance that has broken the bearing, unless it is an optical illusion.
According to the specs the motor can take upto 1.4m size. I have been only using 1m Gibertini. Shall I open the motor further to check for additional damage?
Maybe there is something else that could have caused the damage - like driving the dish to the point where it hit something solid but the motor still kept trying to drive it? OTOH & TBH, I would have thought that the resultant damage from that would have been mainly to the dish itself, and very visible, and not to the motor (but if the latter, then I would have thought that the gears would have stripped before the shaft or bearing broke!)
I remember seeing the dish brackets during the wind hit metal cable wire and then struggling to move. I think its this event which caused the bearing to break. I have a Stab HH100 in the shed but that's also stuck on a satellite and wont move East/West. Will open up that also to have a look. The motor was brand new when I purchased it 3 years ago. I use it quite alot.
You might find the Stab rotor is still under some form of warranty.
Warranty is probably finished now. I purchased it in December 2019.
) - so, unless there's some sort of short-circuit in the latter combo, then they will inherently & automatically limit the current to the required (and safe!) level. However if such a fault does occur then the Rx LNB o/p current limits will kick in and (usually) simply shut down (as happens if there is a cable short-circuit fault - which is far more likely than a similar fault in the motor or LNB!)..
The last Stab rotor I took apart had burnt out resistors on the board, indicative of the motor demanding more power than it could convert into movement.The Rx won't send "too much current" because the current drawn will depend on the resistance/impedance of the load, i.e. the motor & LNB (good old Ohm's Law is your friend on this matter
What could cause damage is if the Rx o/p voltage is too high because that would drive more current into the load and cause overheating - but that's very unlikely unless there's a fault in the receiver, such as the voltage stabiliser components having gone short-circuit.
FWIW: the only situation where I've ever seen a "too high" voltage issue was with my original NEC 5000 H2H motor which ran at 24V from an Rx which outputted that to the motor, when I bought a newer Rx which had a 36V o/p - so, like others in the same situation, I fitted a resistor bank (Ohm's Law, again!) in the o/p to the load so that the voltage actually at/across the motor was reduced to 24V, and it ran fine for years like that
Or those resistors were incorrectly/under-rated for the current drawn/power to be dissipated under max adverse loading conditions (e.g. in a stalled rotor condition caused by the motor trying to drive the dish against "something" solid like a wall or post, etc!)
These were on the circuit board. Will look for the specific thread.Or those resistors were incorrectly/under-rated for the current drawn/power to be dissipated under max adverse loading conditions (e.g. in a stalled rotor condition caused by the motor trying to drive the dish against "something" solid like a wall or post, etc!)
When I made up the resistor bank for the NEC motor, IIRC I used 4 large ceramic wirewound ones in a series/parallel configuration to get both the resistance value and the power handling capacity that was required - and none of them ever failed in quite a few years of use!
Imagery of the top of the board (components) and bottom (if charring is apparent)
Even if the resistors are on the board, one can always try to fit the bigger resistors "remotely" somewhere else in the housing (and use "thickish" wiring between the board and the resistors!)
Unless I'm mistaken, part of the shaft thread has almost totally stripped ("almost" meaning that it does transmit drive to the dish shaft but only with a very light load) - in which case there seem to be two alternatives: find & fit a new shaft, or replace the whole motor!
