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Electric tongue Jack blows fuses

Whangler
Explorer II
Explorer II
New trailer came with a Barker VIP 3500 tongue Jack. It blows the fuse (30A) when I reverse direction. If I stop and wait a moment before reversing direction, fuse doesn't blow. Other than this, the jack works fine. This is my 4th TT with an electric tongue jack but this never happened on the others. Any ideas?
16 REPLIES 16

ktmrfs
Explorer
Explorer
SAR Tracker wrote:
You have to allow the motor to stop before reversing. It's like going from drive to reverse in a car. Nothing good happens if you don't allow everything to stop.


yup. same thing on my atwood jack, my smaller barker ball screw and my barker 3500 ball screw and on my max air fan.

basic analysis of electric motor principles of operation will show a much larger than normal current draw with motor running in the reverse direction when voltage is applied.
2011 Keystone Outback 295RE
2004 14' bikehauler with full living quarters
2015.5 Denali 4x4 CC/SB Duramax/Allison
2004.5 Silverado 4x4 CC/SB Duramax/Allison passed on to our Son!

SAR_Tracker
Explorer
Explorer
You have to allow the motor to stop before reversing. It's like going from drive to reverse in a car. Nothing good happens if you don't allow everything to stop.
Rusty & Cheryl
2011 F250 2WD 6.2L Gasser
2008 Weekend Warrior FB2100
"Common sense is in spite of, not the result of, education" - Victor Hugo (1802-1885)