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01-09-2017, 01:21 AM | #1 |
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Separate back up button?
Does anyone use a separate back up button to put their PG solenoid in to engage reverse without engaging the delay box/throttle stop or starting line control cylinder?
I'm thinking I could wire one in the circuit with a diode preventing feedback to the delay box but I don't have any knowledge concerning diode sizing or ratings etc. Can one of you Guys help me out with this?
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Bill Baer 3391 SC, 339B SC, QR |
01-09-2017, 12:09 PM | #2 |
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Re: Separate back up button?
You don't need a diode. The 12V when put to the transbrake is on the output terminal of the delay box and does not cause any issues in the delay box.
Dan |
01-09-2017, 05:03 PM | #3 |
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Re: Separate back up button?
The Don Davis race car wiring diagram is setup that way for wiring the Davis cars.
I wired my own and did not use the separate button/switch because I thought it might accidently get tripped while moving to the staging lanes in low gear causing a real issue. The wiring diagram showed a simple on/off switch and I have looked at a few Davis cars which had the switch mounted on the dash panel. I just chose not to use one. Just My 2 Cents Rick Cates Canyon, TX |
01-09-2017, 05:26 PM | #4 |
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Re: Separate back up button?
I've used them in the past. I just used a toggle switch mounted on the dash, that way there wasn't a chance of accidentally hitting it while driving around, and I didn't have to hold the button down while turning the wheel.
Dan |
01-09-2017, 05:58 PM | #5 |
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Re: Separate back up button?
One side of button to +12 volts, the other side of the button to the Transbrake terminal of the delay box. That's it; no problems.
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01-09-2017, 06:32 PM | #6 |
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Re: Separate back up button?
Could you use a momentary switch. You would have to steer with 1 hand and hold switch to go in reverse. That way you will never forget to flip toggle switch.
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01-13-2017, 11:18 PM | #7 |
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Re: Separate back up button?
Your right! I would be putting power to the output side of an open relay.
Duh Thanks Voltdr. Thanks for the advice guys. I think I'll just use a momentary toggle switch on the dash.
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Bill Baer 3391 SC, 339B SC, QR Last edited by Bill Baer; 01-13-2017 at 11:25 PM. |
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