JLG X20JP - X600AJ Service Manual - Manual (Page 323)

SECTION 6 - JLG CONTROL SYSTEM
3121623 – JLG Lift – 6-107
LEM RESET PROCEDURE:
LEM is the sensor that measure the current (Amps) that is
going in-out from the lithium pack.
BE CAREFUL: pressing that button the LEM zero setting
procedure is starting. The procedure will automatically
open the pack contactor, reset the sensor zero when there
is no current going in-out of the pack and then close again
the contactor.
Figure 6-110.
When the process is finished the message below is
appearing.