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Reload this Page Trouble with PTO clutch staying on when in run position
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Old 04-08-2023, 04:40 PM
beancent beancent is offline
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Default Trouble with PTO clutch staying on when in run position
If you guys saw my previous thread of installing the Magnum 15 into a 1864, I managed to start up and run the magnum and am now experiencing a PTO clutch that will start up in the start position, but not stay running in the on position. So far I checked the reverse switch plug and noticed it was jumpered out as is the seat switch plug. I tried switching out the PTO relay with the spare one I had. I also swapped out the PTO switch with the other switch I had. Last thing I did was to swap out the PTO clutch with a know good clutch that came off a KT 17 series II engine. The clutch is still acting the same, comes on start position but does'nt stay on " on " position. Anyone have a clue?
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Old 04-09-2023, 06:56 AM
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The engine doesn't need to be running for these tests.

Are you getting power on the red/white wire on the reverse relay(terminal 30) with the ignition switch in the "on" position? Also check it with the PTO switch in the on & off position. There should always be 12 volts there with the key on.

Are you getting power on the black wire (terminal 66) with the PTO on and seat switch jumped out(for testing) or someone sitting in the seat?
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Old 04-09-2023, 11:56 AM
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I will check those out. Thankyou for your response.
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Old 04-09-2023, 12:15 PM
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With ignition key turned to on, checked out the red and white at terminal 30 and had 12 volts but the black at terminal 86 did not.
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Old 04-09-2023, 12:33 PM
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Even with PTO switch in on position, still not getting 12 volts at terminal 86.
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Old 04-09-2023, 01:47 PM
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Key on, engine off, move PTO switch to start and then on for this test.

Is there 12vdc on the violet wire at the seat switch?
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Old 04-09-2023, 07:17 PM
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No there is not 12volts at the seat switch.
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Old 04-10-2023, 07:58 AM
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That violet wire comes from the "B" terminal on the PTO switch and should have 12 volts on it when the switch is on. Either your wire is broken or the switch or plug is bad.

This is true if your relay and other wiring are good which they should be if it starts in the start position. I would start doing continuity checks on your wiring to confirm the PO installed jumpers are installed correctly........for test purposes only.
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Old 04-10-2023, 09:49 AM
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Ok Oak, I will test for 12 v at the PTO switch and start testing continuity at the wires. Thanks for your response.
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Old 04-10-2023, 10:13 AM
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Just checked the purple wire terminal at the switch with switch turned on and no 12v. Looks like I will be ordering a new switch. Where is a good place to order a new PTO switch?
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