HOOKED UP NEW BATTERY...BACKWARDS.

klausy

New member

Equipment
u27-4 excavator
Nov 8, 2026
1
0
1
Konawa, ok
REPLACED FUSES, STARTS AND HAS CONSOLE LIGHTS, NO HYDRAULICS. REPLACE YELLOW FUSE BY BATTERY, REPLACED 10 AMP FUSE ON HARNESS. THE OTHER BIG FUSE WAS OK. IT STARS AND RUNS BUT WON'T MOVE. ICHECKED EVERY FUSE IN PANEL UNDER SEAT. REPLACED ONE. THAT MADE THE CONSOLE LIGHTS WORK.
 

John T

Well-known member

Equipment
2017 BX23S 385XP Miller211 1952 Panhead Orange Ludwig 4 piece
May 5, 2017
1,402
921
113
under a rock
REPLACED FUSES, STARTS AND HAS CONSOLE LIGHTS, NO HYDRAULICS. REPLACE YELLOW FUSE BY BATTERY, REPLACED 10 AMP FUSE ON HARNESS. THE OTHER BIG FUSE WAS OK. IT STARS AND RUNS BUT WON'T MOVE. ICHECKED EVERY FUSE IN PANEL UNDER SEAT. REPLACED ONE. THAT MADE THE CONSOLE LIGHTS WORK.
Just a guess but check the hydraulic solenoid(s)
 

jaxs

Well-known member

Equipment
B1750HST
Jun 22, 2023
1,133
846
113
Texas
Assuming this is your U27 mini, I'd suspect you may have fried an ECU.

NO NEED TO YELL either, LOL
If you don't like YELLING, you wouldn't like being around if my tractor did this. And you certainly wouldn't like WORDS THAT I WAS YELLING. 🤬