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8000 series tach Issue
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pdh View Drop Down
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Joined: 13 Sep 2009
Location: Iowa
Points: 199 		Post Options Post Options   Thanks (0) Thanks(0)   Quote pdh Quote  Post ReplyReply Direct Link To This Post Topic: 8000 series tach Issue
    Posted: 17 Mar 2017 at 6:32pm
Went to look at an 8050 today. Tach does not work at idle. Throttle to wide open and it starts working and seems "normal" as long as throttle is wide open. Back off the throttle more than 100 or 200 rpms and it quits reading again. Fixable? Or have to replace?
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DennisA (IL) View Drop Down
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Joined: 11 Sep 2009
Location: Ridott IL.
Points: 2075 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DennisA (IL) Quote  Post ReplyReply Direct Link To This Post Posted: 17 Mar 2017 at 6:53pm
The sensor pickup needs to be adjusted. It's very easy to adjust. Just unplug it and screw it in until it touches the flywheel then back it off one turn and plug it back in.
Thanks & God Bless

Dennis
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pdh View Drop Down
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Joined: 13 Sep 2009
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Points: 199 		Post Options Post Options   Thanks (0) Thanks(0)   Quote pdh Quote  Post ReplyReply Direct Link To This Post Posted: 18 Mar 2017 at 5:31am
Sounds easy enough - point me to the general location of the sensor? Thanks.
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Lynn Marshall View Drop Down
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Joined: 13 Sep 2009
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Points: 2427 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Lynn Marshall Quote  Post ReplyReply Direct Link To This Post Posted: 18 Mar 2017 at 8:02am
Left side. Below the starter.
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pdh View Drop Down
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Many thanks to both of  you.
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AllisandGleaner View Drop Down
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Points: 360 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AllisandGleaner Quote  Post ReplyReply Direct Link To This Post Posted: 21 Mar 2017 at 7:23pm
Ok I have the same problem with my 8030 and I tried to adjust it as said and it still has the same problem, doing the same thing. Like it tries at idle but not enough you have to rev it up to 900 rams to get a response. Any pointers?
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Unit3 View Drop Down
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Joined: 17 Oct 2009
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Points: 5607 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Unit3 Quote  Post ReplyReply Direct Link To This Post Posted: 21 Mar 2017 at 9:40pm
Trouble with an 8000 series tach, join the club. Oh the joys of an old tractor.
2-8070FWA PS/8050PS/7080/7045PS/200/D15-II/2-WD45/WD/3-WC/UC/C
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Ron(AB) View Drop Down
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Joined: 27 Dec 2009
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Points: 962 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ron(AB) Quote  Post ReplyReply Direct Link To This Post Posted: 21 Mar 2017 at 11:28pm
Originally posted by AllisandGleaner AllisandGleaner wrote:

Ok I have the same problem with my 8030 and I tried to adjust it as said and it still has the same problem, doing the same thing. Like it tries at idle but not enough you have to rev it up to 900 rams to get a response. Any pointers?


Do you have another used tach to swap out and compare/trobleshoot?
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AllisandGleaner View Drop Down
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Joined: 04 Mar 2016
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Points: 360 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AllisandGleaner Quote  Post ReplyReply Direct Link To This Post Posted: 22 Mar 2017 at 6:14am
Nope it's my first 8000 series tractor so this is new territory for me.
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DennisA (IL) View Drop Down
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Points: 2075 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DennisA (IL) Quote  Post ReplyReply Direct Link To This Post Posted: 22 Mar 2017 at 4:31pm
The next step is to check the ohms of the pickup. I don't know what the ohms should be. Be best to compare to a new one if you can. Pickups can and do go bad.
Thanks & God Bless

Dennis
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