Clutch Safety Switch AC6080 2WD
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=208177
Printed Date: 17 Sep 2025 at 11:20am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Clutch Safety Switch AC6080 2WD
Posted By: REM
Subject: Clutch Safety Switch AC6080 2WD
Date Posted: 14 Sep 2025 at 4:19pm
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Can anyone tell me where the Clutch Safety Switch is located on an AC6080 2WD?
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Replies:
Posted By: Lynn Marshall
Date Posted: 14 Sep 2025 at 4:50pm
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Remove the black panel down by you feet. Maybe about 8 metric bolts to remove. It's in there. If it won't crank over, there are a couple of PTO safety switches that can also cause that.
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Posted By: AC720Man
Date Posted: 14 Sep 2025 at 8:21pm
It’s a real pain to get to it so be prepared. The pto switches are on the right side of the transmission below the pto disconnect lever. There are 2 of those. All 3 switches are the same type. Make sure you get them adjusted correctly or you will damage the switch.
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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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Posted By: Lynn Marshall
Date Posted: 15 Sep 2025 at 12:54pm
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There's more to it. Of the two switches on the right hand side, one of them is for the engine cranking circuit. The other one, just turns the light on in the dash. There's a second PTO safety switch for engine cranking on the left-hand side, below the seasonal disconnect lever. At least one of the levers has to be in a disconnect position before the engine will turn over. Between the switches, wiring connections, and voltage drop in the harnesses, it can cause a low voltage problem at the starter solenoid. An auxiliary slave solenoid or relay can help to make sure that you're getting a solid 12 volts to the white wire on the starter solenoid.
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Posted By: AC720Man
Date Posted: 15 Sep 2025 at 9:35pm
Forgot about that one Lynn, good catch. Haven’t had an issue with it yet.
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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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Posted By: REM
Date Posted: 16 Sep 2025 at 6:45pm
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Usually if I press the Clutch Pedal 3 or 4 times it will crank.
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Posted By: AC720Man
Date Posted: 16 Sep 2025 at 8:02pm
If that's the case it may just be out of adjustment. Locking nut may have backed off. Ours started that way but eventually replaced it.
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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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Posted By: Lynn Marshall
Date Posted: 16 Sep 2025 at 9:30pm
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Does it make a click noise at the starter every time, even if it won't crank over? You can bypass the clutch safety switch with a jumper wire to see if that makes the starter engage every time.
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