JLG X20JP - X600AJ Service Manual - Manual (Page 307)

SECTION 6 - JLG CONTROL SYSTEM
3121623 – JLG Lift – 6-91
Figure 6-84.
10 – Wrench icon appears on the display.
Check the trouble codes, pushing button N° 6 (service),
then N° 3 (errors), then number 1 (previous).
Is “80” the trouble code number on inverter?
If yes go to step 11, if no go to step 14.
11 – Inverter trouble code is number “80”.
Check F160 fuse, then check if fuse F160 has 72 Volt to
the ground.
Has fuse F160 72 Volt? If yes go to step 12, if no go to
step 13.
12 – Fuse 160 A has 72 Volt.
Check the Inverter connections (page Z4 of the wiring dia-
gram)
13 – Fuse 160 A has not 72 Volt.
If Fuse 160 A is not fed, BMS can be OFF, so the internal
contactor is OFF too.
Go to step 7, if everything is ok, check the internal contac-
tor (pages Z8 and Z9 of the wiring diagram).
14 – Inverter trouble code is not number “80”.
Is there code number 74 on the inverter?
If yes go to step 15, if no go to step 16.
15 – There is code number “74” on the inverter.
Check the connections from the inverter to the “MR”
(page Z4 of the wiring diagram), then check the MR coil.
16 – Check the inverter trouble code, then look for its
meaning on the Service Manual
17 – Wrench icon doesn’t appear on the display.
Check fuse F1, then check if the relay coils of R1 and R4
have 12 volt with the key switch on (page Z1 of the wiring
diagram).Are the coils fed? If yes go to step 18, if no go to
step 19.
18 – Coils of R1 and R4 are not fed with the key switch on.
Check the connections from 12 Volt lead battery to R1 and
R4 coils, then check pin A30 and A29 of the ECM 1-2
(page Z1 of the wiring diagram).
19 – Coils of R1 and R4 are fed.
Check relay R4, then check the connection from wire GR/
R of R4 to pin N° 2 of “5 ways BMS connector” (page Z5 of
the wiring diagram).
If the failure remains, go to step 7.
C – Electric motor doesn’t run
Battery package level is “zero”? Go to failure description B
Is there the wrench on the display?
Figure 6-85.
Check trouble code, pushing button N° 6 (service), then
N° 3 (errors), then number 1 (previous).
If “74” is the trouble code on the inverter go to stepn15.
If “80” is the trouble code on the inverter go to step 11.
If there are other trouble codes, please refer to the Service
Manual.
If there are not trouble codes please check the connec-
tions from the Inverter to the electric motor (page Z4 of the
wiring diagram).