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Curtis B.
Curtis B., Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 26059
Experience:  Technician turned service manager on multiple lines of trucks and engines, used in industry.
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I have a new holland l218 and the aux hydraulics won"t

Customer Question

I have a new holland l218 and the aux hydraulics won"t engage.
JA: What is the complete model and serial number of your machine?
Customer: l218 loader NDM448966
JA: Are you fixing this yourself? What have you tried so far?
Customer: i've checked the fuses and checked the voltage at the switch. had something like 8.7 volts on both sides of the switch, no mater the switch position.
JA: Anything else you want the equipment mechanic to know before I connect you?
Customer: dont think so
Submitted: 15 days ago.
Category: Medium and Heavy Trucks
Expert:  Curtis B. replied 14 days ago.

Welcome to JUST ANSWER heavy equipment. With years of experience, I look forward to doing my best to help.

Expert:  Curtis B. replied 14 days ago.

Follow the voltage back , and fond out why you don't have full battery voltage, you need at least 12 volts, for the switch to control the solenoids. Problem is low voltage!

Customer: replied 14 days ago.
That doesn't explain why the voltage is the same on switch in and switch out regardless of switch position.
Expert:  Curtis B. replied 14 days ago.

Not a three wire switch? With a neutral?

Expert:  Curtis B. replied 14 days ago.

I f you remove wires from switch, are both wires still have voltage?

Customer: replied 14 days ago.
3 wires. One is a ground. Switch is a "Hall effect thumb wheel"
Expert:  Curtis B. replied 14 days ago.

Not familiar which this switch, but are both power wires hot if you remove them>

Customer: replied 14 days ago.
No. One hot wire only. Voltage is coming through the switch.
Expert:  Curtis B. replied 14 days ago.

?? You are telling me the switch is bad? It should have no voltage out until you move switch.

Customer: replied 14 days ago.
If it was a regular switch, I would say yes, but it's not. I think it sends a digital signal to the computer. Not just cut the cutting the voltage supply to a solenoid.
Expert:  Curtis B. replied 14 days ago.

OK< I will opt out and see if anyone else can help. But I think before you get it working you will need full battery voltage to the switch. Sorry

Customer: replied 14 days ago.
If it is digital, wouldn't 12 volts fry it?

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