Terex 51-19M Telehandler Boom Problem

[tmuenster]

I am having an issue with my Terex 51-19M telehandler boom. The boom will not go back down. I’ve checked the fuel to see if it was spiked with Viagra but its clean. Seriously, the machine runs and moves just fine except for the issue with the boom. Any chance someone could provide advice on how to safely lower the boom manually so I can get the machine in for service?

 

[Weldman]

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[tmuenster]

I did replace all the smaller fuses, which I think included the F2 location. I am not sure about the F24 location.

The Emergency button is not depressed and I can start the machine just fine.

 

[Weldman]

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[Mullaney]

I am having an issue with my Terex 51-19M telehandler boom. The boom will not go back down. I’ve checked the fuel to see if it was spiked with Viagra but its clean. Seriously, the machine runs and moves just fine except for the issue with the boom. Any chance someone could provide advice on how to safely lower the boom manually so I can get the machine in for service?

View attachment 881041

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I rummaged a few books that I have.
Specifically in the Shop Manual on the 19-MD model, Fuses F1 F15 F17 and Relays R1 R7 control the Boom Lowering function.

Here are the books that I have.
Page 288 in the shop manual is trouble shooting for lowering the boom. (in ShopManual 03, Printed Page #282)

Sorry I had to bust up the book, but the site says at 40mb, the file was too large.