JLG X20JP - X600AJ Service Manual - Manual (Page 299)

SECTION 6 - JLG CONTROL SYSTEM
3121623 – JLG Lift – 6-83
4 – Red wire has 12 Volt.
Check the 12 Volt switch under the key switch, then check
the connection of the wire 1/12, from the key switch to the
pin B1 in the master board (see page Y1 of the wiring dia-
gram).
5 – Red wire has not 12 Volt.
Check fuse F6, then check the feed from 12 Volt lead bat-
tery to F6 fuse (= lead battery + feed connector + R1 + 2
ways connector).
(see page Y1 of the wiring diagram)
B – Battery package level is “zero” even after the
charge
Check the value in the INPUT menu, press button number
6 “service”, then 1 “input”, then 1 “previous”.
Press button number 9 “Esc” to go back.
Figure 6-62.
Is it possible to charge the battery?
Try to connect the network cable 110-220V, and look for
the battery charger light; after two minutes, is it red or is it
flashing green/red?
If it flashes red go to step 6, if it flashes green/red go to
step 7.
Figure 6-63.
6 – Connecting the network cable 110-220V, after two min-
utes the light on the battery charger light is red.
The system works correctly. Keep the network cable until
the light on the battery charger will flash yellow.
Test the machine again, if the problem still, go to step 9.
7 – Connecting the network cable 110-220V, after two min-
utes the light on the battery charger flashes red/green.
Meaning: The battery charger doesn’t find the battery
package 48 Volt.
Check fuse F1, then check fuse F3, then check the gray/
red wire connected from the pin N° 5 of the “6 ways BC
connector” (page Y3 of the wiring diagram) to the pin N° 2
of the “5 ways BMS connector” (page Y5 of the wiring dia-
gram) of the BMS.
Then check the connection from the “5 ways BMS con-
nector” and the BMS.
Are all the connections and the feeds ok?
If Yes go to step 8, if no go to step 9.
8 – All the connections and the feeds are ok.
Check Relay N°3 (or 2, depends on the serial number)
and hits connection (page Y3 of the wiring diagram); then
open the BMS cover and check if the feed leds are on
(yellow circle), then check if the Can Bus Leds are ON
(yellow square).
Figure 6-64.