Seeing the discussions on this thread about the Yaesu rotators, I'd thought I'd take a stab at it to see if someone out there can help. I have a Yaesu G5400 elevation/azimuth rotator combination. I recently disassembled the elevation due to it not functioning. In the process over a pint of water came out of the unit. In the disassembly process I managed to mess up the end of the motor armature which holds the drive gear. Apparently there are two version of this motor. The 'older' version cost about $85.00 and as I found out does not even come close to fitting the unit I have. Apparently I have a newer unit with limit switched which does not match the drawing in the manual (by the way it costs $207.00!!!!).

To cut to the chase I only need the armature so if anyone has a unit in which the motor is even defective, please let me know. The unit I have mounts with 4 screws not three. The nylon gear is actually a slipping gear on the shaft and engages with a brake cam held by a set screw. It also contains a spring as part of a brake assembly. If anyone thinks they have this unit and again the motor can be bad as I only need the armature, please let me know, If you need a picture let me know and I'll send you a picture of the motor off-list.

Due to the various differences of the motors and how they mount it's not even adaptable. I'll have to send it back (I hope) and try to fix this armature on my unit or find someone with a unit they are no longer using or need. Without this, the arrays will continue to remain on the ground where they have been since the storms of '04'. Being unemployed for 18 months doesn't help and therefore purchase of another G5400 or equivalent is out of the question. Hope someone can help, thanks.

Regards,

Reid, W4UPD Amsat #17002