Twist bulb holder - is this a bayonet style #44 socket ? If so replace it is probably easiest.

Visor - Might need a good cleaning, especially if there is grease in there which isn't needed.

LTG

But you'll feel so much better after it's done and you learned during the process.

Take your time, maybe notes or pictures. You'll be fine.

LTG

I'd get a #44 socket with three lugs - two for wires one for diode, and wire it up the same way as other sockets.

LTG

No need to be sorry. It is easier to help now than later when things go wrong. All part of learning more about pinball.

The socket you listed will work fine. Wire it in right and you'll be good to go.

LTG

LTG FTW!

Rich, we have seen what you have accomplished on SMB. You know what you accomplished. Don't back down. You will learn it and then help others when they ask about the Pinbot visor.

There is nothing to lubricate on the visor. As you can see what the stickers says in pic.
I would check the screws that set the bottom travel of the visor.

Visor.jpg

Haven't had any problem with mine. But that sticker is missing, so future thanks when I don't do something stupid.

I would recommend talking it all apart, cleaning everything and put it all back together.
Pinbot is not too hard to take apart.

Start at the visor 'helmet', then the ramp, then you should be able to get at the visor stuff on top, the under playfield stuff should be easy to get at anyway.
Replace those post sleeves while you're at it

Richthofen, That motor only spins in one direction, in doesn't reverse.
One other thing to check is to make sure the small bushing is still on the motor shaft.
Heard of them falling off and causing problems.

Rich, for what it's worth, my Pinbot also seems to have some play in those areas. I notice that when a ball hits the target bank, I can see it move, especially if I strike it solidly. The visor arms underneath have some play too, so I'm thinking this is normal.

I don't know if I have the same issue, but sometimes, maybe 1/10 times, when the visor opens, the target bank doesn't go down all the way, sticking up above the playfield maybe as much as 1/4". This is enough to keep balls out, and it also makes balls go airborne if I hit it hard enough.

I'm planning on waiting until it happens again. Then I'll turn the game off and raise the playfield and see if I can see the target bank getting caught on something.

I also didn't know what those screws were for. Since my problem is intermittent, I'm not sure adjusting those will help me. I did notice that one of the screws was screwed in further than the other. It seems that they should be the same.

Sorry to hijack your thread with my problem, but maybe its related. Unfortunately, my Pinbot is a couple states away, so I won't get to troubleshoot it again until next Saturday.

This sounds more like my issue:

http://pinside.com/pinball/forum/topic/pinbot-motorized-drop-targets

It may or not be related to yours. I just found this thread but did not find it for some reason when I searched yesterday.

Rich, did you install plastic protectors on your game? My visor lid doesn't close all the way, and I'm pretty sure it's dragging against the plastic protector.

Rich, can you post a couple pics with motor assembly off.

Something has to be binding the linkage under the visor. I would take the target carrier off and see how the visor opens. Take a look under the visor and see if anything is binding there.
Also you do have the bushing that belongs on the motor cam?

There's no adjustment on the arms. On the middle of the arm that goes to the carrier there's a clip, take that off and the washer and you can separate the bottom linkage from the visor. Unfortunately to get to the top of the visor you have to remove the blue ramp.

Visor.jpg

Old thread, I know. Just following up with what I think was causing my particular target bank problem. I was tired of my target bank sticking up about 1/4" once every 20 times, so I finally took apart the assembly and realized one of the two limit switches was different than the other. I also broke the other switch, so I ordered two new ones. I also cleaned the grease off the two plastic pieces in the assembly that slide against each other and applied new lithium grease.

So far, so good.

Here are pics of the original switches and one of the new ones (both of the new ones are identical, as the manual specifies). You can see one of the old ones had a way different actuator that appeared to have been bent into shape, possibly causing the machine to sense that the target bank was all the way down when it was not.

20140206_194223.jpg

20140206_194250.jpg

20140206_194409.jpg

Yep just replaced both my micro switches, thinking i was going to be smart & open up the gear box for a general clean out & regrease, those gearbox's are POS should have left it alone

I notice I am having same problem and when I look the cam on motor is missing the Bushing. Anyone know who sells this item or idea what to use in place of it ?
Thanks
Sorry to Hijack thread
could anyone take a picture of the bushing is it plastic or rubber ?
Thanks for help