2538 HST Won't Start
- Thread starter PapaRoo
- Start date
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Topzide
Platinum Member
Can you get to the starter? If so, first take a set of jumper cables and attach negative cable to negative terminal, the clamp onto a bolt that holds starter to the tractor. Try key. If it starts, it's a ground issue. If not, step two. Attach positive cable to positive terminal of battery. Take other end and tap terminal were large cable attached to starter (not the solenoid terminal if your starter has one bolt onto it). Be prepared for the engine to possibly spin over. If this works, check positive cables or starter solenoid. Hope this helps and good luck!
Topzide
Platinum Member
One other possibility is that you have a safety circuit causing a fault. Then you'll need a meter to stay checking safety switches!
radios1
Elite Member
WRONG!. if you have good voltage under load, the connections are good, Voltage under load is what matters.. I have an MSEE degree.. with 40 years of experience engineering..
grsthegreat
Super Star Member
have you physically tried to twist the battery cables and make sure they dont turn. I found out the hard way that the cable i thought was snug wasnt. i had the wife turn key while i twisted battery cables. the tractor came to life. those **** cables clamps stretch over time.
Ok I知 not sure I follow what you are saying here. I can get to the starter. Are you saying clamp the negative cable on the battery negative terminal and then also clamp the negative cable on a bolt holding the starter?
When you move on to the positive test do you leave the negative cable clamped on? Mine does appear to have a solenoid that痴 right beside/on the starter and that痴 where the cable from battery attaches.
radios1
Elite Member
Yes to 1 no to 2. you are testing the cables 1 by 1. thinking about it, you may have a corroded fuse block causing this problem!.. I've seen that same symptom before.
Topzide
Platinum Member
What your trying to do is to bypass all the cables from the battery to the starter. By using the jumper cables you're confirming that the cables are good or bad and also whether you have a good ground to the frame.
This can also allow you to bypass the ignition switch. Since you say the your starter has the solenoid attached, were the heavy connection goes from solenoid to starter, you could touch positive battery cable to that stud to make starter spin. Without power going to small connector on solenoid, the engine won't spin due to bendix not engaging the flywheel.
PM me if needed and I'll send # so can talk if needed. Good luck, we're all here with help when needed!
This can also allow you to bypass the ignition switch. Since you say the your starter has the solenoid attached, were the heavy connection goes from solenoid to starter, you could touch positive battery cable to that stud to make starter spin. Without power going to small connector on solenoid, the engine won't spin due to bendix not engaging the flywheel.
PM me if needed and I'll send # so can talk if needed. Good luck, we're all here with help when needed!
LouNY
Super Star Member
- Joined
- Jul 4, 2015
- Messages
- 12,259
- Location
- Greenwich, NY
- Tractor
- Branson 8050, IH 574, Oliver 1550 Diesel Utility (traded in on Branson) NH 8160. Kioti CK2620SECH
Using this method will verify if you have an issue with the power cable to the starter;
With your meter on DC Volts,
connect your negative lead to your positive battery post,
connect your positive lead to the starter solenoids main post,
you should be reading 0 volts as the battery post and cable to the solenoid should be at the same potential,
have some one try to start the tractor using the key, you will normally see 1 to 3 volts on your meter,
that is the voltage drop thru the cable under load.
If you see over 3 volts you have a bad battery cable to the starter.
If you see 0 volts and the tractor does not turn over but you hear the solenoid click,
move the positive meter lead to the stud on the starter that the solenoid feeds.
And try again to start the tractor, you should see 1 to 3 volts and the tractor should crank over.
If you see a much higher voltage reading you need a new solenoid.
Using good jumper cables to go from the battery negative to a starter mounting bolt is verifying the ground path.
Then using the jumper cable from the positive battery terminal to the starter solenoid battery terminal is a method of verifying the power feed cable.
Both method will work to troubleshoot cable issues,
I did say good jumper cables as many of the ones on the market today are about worthless,
they are #10 or lighter wire with a bunch of cheap plastic making them look heavy duty.
Good ones will at a bare minimum be #4 wire and preferably #2.