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JLG Boom Lift 40HA jerky hydraulics

DFBluffton · 2025-08-03 15:54

HEF members - Hi all, I have a 1995 JLG 40HA, trying to figure out, when I operate any hydraulic function, it’s very jerky/fast to start and stop. Have to hold on real good to not fall over. Any ideas where to start to adjust hydraulics?

Replies1
  1. #1excavator2025-08-04 12:16

    Does it have proportional controls or bang bang controls? Post a picture of the basket control panel, does it have several joysticks or just one with the rest being toggle switches.