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New Holland Skidsteer Forum
L785 Boom Not working
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<blockquote data-quote="sbouvia" data-source="post: 111193" data-attributes="member: 18757"><p>Have a 1987 New Holland L785. Have changed the hydraulic oil, two hydraulic filters, cleaned mesh screen on intake side of gear pump. Machine was working good and then all of a sudden boom no longer works. I am thinking boom lockout solenoid. Removed solenoid and bench tested (applied 12 volt power) to see valve in base of solenoid opening. It appears valve opens and closes, however it only opens halfway. I will get a picture and edit the post later today. Checked seat switch and wiring from seat switch, everything worked as noted. Seat switch worked and 12 volt was delivered to solenoid. For secondary testing does anyone know threads and size of plug to try to bypass the solenoid. It's not a long term thing just a test as I would like to keep that boom lock safety feature.</p></blockquote><p></p>
[QUOTE="sbouvia, post: 111193, member: 18757"] Have a 1987 New Holland L785. Have changed the hydraulic oil, two hydraulic filters, cleaned mesh screen on intake side of gear pump. Machine was working good and then all of a sudden boom no longer works. I am thinking boom lockout solenoid. Removed solenoid and bench tested (applied 12 volt power) to see valve in base of solenoid opening. It appears valve opens and closes, however it only opens halfway. I will get a picture and edit the post later today. Checked seat switch and wiring from seat switch, everything worked as noted. Seat switch worked and 12 volt was delivered to solenoid. For secondary testing does anyone know threads and size of plug to try to bypass the solenoid. It’s not a long term thing just a test as I would like to keep that boom lock safety feature. [/QUOTE]
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L785 Boom Not working
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