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My aj450 manlift after running it for 45 minutes shut off,

My aj450 manlift after...

My aj450 manlift after running it for 45 minutes shut off, then i restarted it it run for a minute then shut off again. I checked the oil its clean and correct level, I checked hydraulic level and that was good as well, it seemed like ,it was running hot, so i let it cool down and checked the coolant and that was good, i then drove it around and it was running normal, i then started to assume it was overheating and noticed the fan was not turning on. I tested to see if power was going to the fan and it wasn't, what would cause the fan to not get power.

Mechanic's Assistant: What is the complete model and serial number of your machine?

450AJ year 2007 serial no:(###) ###-####

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Answered in 19 minutes by:
3/27/2018
Curtis B.
Curtis B., Technician
Category: Construction and Road Equipment
Satisfied Customers: 31,440
Experience: Technican turned service manager with multiple lines of equipment and rental units.
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Hello! Let's see if we can work together and come to a satisfactory conclusion!

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The fan should get power direct from the fan switch, on the radiator upper tank or at the thermostat housing. Check the fan switch, for voltage, you can use a jumper to jump around it, to see if the fan comes on.

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Customer reply replied 3 months ago
Is there a fuse that might have blown for the fan not to get power, I put my tester on the wire going to the fan after getting it hot and 0 votsge

I could be fuse, but more likey a bad fan thermal switch.

Curtis B.
Curtis B., Technician
Category: Construction and Road Equipment
Satisfied Customers: 31,440
Experience: Technican turned service manager with multiple lines of equipment and rental units.
Verified
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Customer reply replied 3 months ago
I looked in the electrical panel and there is no fuse for a fan
Customer reply replied 3 months ago
Where with the fan thermal switch be
Customer reply replied 3 months ago
I’m reading through the manual online and haven’t found anything yet
Phone call session started

I tried to call, no answer. trying again.

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Second call, no answer, went to voice mail?

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Thermo switch will be on the top radiator tank, or at the thermostat housing. What engine is this? I assume Ford industrial gas engine>

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Customer reply replied 3 months ago
It’s diesel not gas
Customer reply replied 3 months ago
Try to call again

Kubota diesel? The same thing applies unless this is a Deutz.

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Customer reply replied 3 months ago
Not sure how to tell which diesel it is

It is water cooled, so it is not a Deutz, more likely a Kubota and it would have the switch at thermostat housing.

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Customer reply replied 3 months ago
I keep getting a voicemail but my phone is not ringing

Completed call. looking for more information.

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Customer reply replied 3 months ago
Did you find the location of the thermal switch

Not shown or listed in the parts or the service manual. It does not even show electric fan.

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Customer reply replied 3 months ago
Same thing here no electrical diagram for the Pham or where the thermal switch might be

Try to trace the wire colors back from the fan!

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