cam issue in AF Timer (Video included)

[Gil]

I hooked up the insides of my AF Timer today (the cabinet is being painted) and have come across some issues.

1. When you push one of the buttons. the relay triggers, but the cams will not rotate when in "resting position."

2. When you move the cam out of "resting position," it will ocassionaly rotate, but only for a short period of time.

3. When you elevate the contactors away from the cam, it begins to rotate, indicating some sort of resistance between the cam and the contactor.

Here's the video:

http://twcfreaks.com/~gil/AF%20timer/AF ... 0issue.wmv

Any ideas how to fix this issue?

[JasonC]

Hmmmm, the micro switch on the holding cam may be malfunctioning. Try jumping the terminals on the back of the switch and see if that helps. Make sure jumpers 15 and 16 are jumped as well. Also, I see you hitting the cancel button. Don't know why you did, but the cams will still cycle the the start position. Try the holding cam micro switch thing first and see what happens.

[AllSafe]

Sounds like a bad synchronous motor.

[JasonC]

I apreciate your help with my AF Timer. I just had a few questions. How exactly do I jump the switch? second, could you possibly email me a copy of the AF wiring diagram and/or schematics? Thanks.

In response to you PM, to jump the switch, just remove one of the spade terminals form the rear of the switch and press it against the other terminal, bypassing the switch mechanism and press the alert or attack button. Do this to the motor feed and holding cam switches. Also, there should be about a quarter inch of play on the cams and cam shaft as well so don't let that throw you off (its there to allow the fire signal to "snap" off with the attack cam). Play around with it some, the wiring is robust so you don't really have to worry about shorting anything out. Here's the schematic:

[Archon]

Do you have 120 Volt conected to the 120 volt termals or the 240 termals?

IF 120 volt is connected to 240 v the cam motor will not turn you would be getting 60 Volts than Also check the in line fuses there are 2

[Gil]

Do you have 120 Volt conected to the 120 volt termals or the 240 termals?

IF 120 volt is connected to 240 v the cam motor will not turn you would be getting 60 Volts than Also check the in line fuses there are 2

Yes, 120volt is connected to the 120volt terminals. The cam motor does turn.


Me and my friend are going to try something. Will tell you what happens.

[Gil]

I fixed it. Thanks for all of your help

[500AT]

What type of material are the code wheels and microswitches made from?

[Gil]

What type of material are the code wheels and microswitches made from?

The cams are either made of wood, plastic, or cardboard with durable
sealant. its hard to tell, but they are very simple.

[CDV777-1]

I fixed it. Thanks for all of your help

So what did you do to fix it?????

What type of material are the code wheels and microswitches made from?

They are made of phenolic.