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Dave (NE) 
Orange Level
Joined: 12 Sep 2009
Location: Eagle Nebraska
Points: 2148
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 Topic: 720 Wiring to Operate Lawn Sprayer
Posted: 16 Oct 2016 at 4:36pm |
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I want to use my 720 to operate the pump on my lawn sprayer. With the battery in the front of the tractor, has anyone run an electric line to the back of the tractor to make it easier to connect the connections from the lawn sprayer pump to? Am looking for ideas on how to best do this. Thanks, Dave
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den/southern illinoi
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Joined: 11 Sep 2009
Location: Sparta, Illinoi
Points: 1988
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Posted: 16 Oct 2016 at 5:55pm |
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I've done that on at least 2 of my 720s. On the left hand side of the dash there is a place for another switch. That's where we mounted the switch and then out under the seat. We used trailer wiring pigtails for the connection to the sprayer that we have. Den
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Own 4 wheel 20, 2-5015, 5020 and associated equipment and 2 electric forklifts.
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Dave (NE)
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Joined: 12 Sep 2009
Location: Eagle Nebraska
Points: 2148
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Posted: 16 Oct 2016 at 6:08pm |
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So, Den, you just ran a line directly from the battery to the switch you inserted in the dash, then on to back under the seat for the connection to the sprayer, if I understand it correctly? Tkx, Dave
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rrhead(SD)
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Joined: 11 Sep 2009
Location: Canton, SD
Points: 432
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Posted: 16 Oct 2016 at 6:16pm |
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On my 720, there is no PTO shaft in it. I just took the wiring from the rear pto clutch switch and added on wire to the rear of the tractor. Used a two prong plug on it and the sprayer wiring. Use the switch on console to turn sprayer on and off. rrhead(SD)
Edited by rrhead(SD) - 16 Oct 2016 at 6:17pm
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2 WDs,WD45,D-14,D-17,D-19D,180,7020,6080FWA,6080 2wd, 6080 2wd(cab),8050FWA,8550,4W-305,Massey 8250. Gleaner L3, R62 &R65 Agco-Allis 1616H & 1920H, AC 720, Terra-Tiger
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Dave (NE)
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Joined: 12 Sep 2009
Location: Eagle Nebraska
Points: 2148
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Posted: 16 Oct 2016 at 6:17pm |
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I do have pto, so probably can't route it that way.
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den/southern illinoi
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Joined: 11 Sep 2009
Location: Sparta, Illinoi
Points: 1988
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Posted: 16 Oct 2016 at 7:11pm |
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Actually when we installed the switches, we were rewiring the tractors, adding relays, fuses, etc as the original wiring was shot. I can't seem to find the picture now but it was all installed under the dash. Most likely a little overkill but I have no electrical problems anymore. So the power actually came from a newer power location under the dash. The outlet had both a relay and fuse besides the switch. Den
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Own 4 wheel 20, 2-5015, 5020 and associated equipment and 2 electric forklifts.
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Steve in NJ
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Joined: 12 Sep 2009
Location: Andover, NJ
Points: 11823
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Posted: 19 Oct 2016 at 6:35am |
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Nothin' wrong with installing relays etc. especially when you have to send power a distance. Good practice to use Den! Relays are designed to stabilize power in the system to the load its suppling. This way the load gets maximum power as it should. No voltage drop, no issues.
Steve@B&B
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39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife
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coggonobrien
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Joined: 14 Nov 2010
Location: Eastern Iowa
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Posted: 21 Oct 2016 at 7:46am |
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Steve, sounds like an opportunity for you to come up with a clean kit, I've been wanting to do the same thing too.
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Dave (NE)
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Joined: 12 Sep 2009
Location: Eagle Nebraska
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Posted: 22 Oct 2016 at 11:48am |
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I got the wire run to the back of the tractor. Have it connected from a switch I installed in the dash. I'm going to put a fuse in the line under the dash, after the switch. What would be a good size fuse to put in it? The sprayer has a 10 amp fuse in the line before the pump, so I know I need at least a larger one than that, but should I go even larger like with a 30 amp fuse? Tkx, Dave
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
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Posted: 22 Oct 2016 at 9:05pm |
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the fuse should be to protect the wire... If you ran 12 gauge wire, you can use a 20 amp fuse. If you ran 14 gauge wire you can use a 15 amp fuse. If you ran a 16 gauge wire you can use a 10 amp fuse... smaller than 16 gauge, you are in trouble.
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Like them all, but love the "B"s.
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Dave (NE)
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Location: Eagle Nebraska
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Posted: 23 Oct 2016 at 8:33am |
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ok, that's exactly what I needed to know. Looks like a 15 amp fuse it will be. tkx Steve.
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