Electrical Components; Electrical Control Panel; 10-1.1 Maintenance; 10-1.2 Cleaning - Big Joe E30 Operation, Maintenance And Parts Manual

10-1.ELECTRICAL CONTROL PANEL

10-1.1.Maintenance
NOTE: Erratic operation of the truck may be caused
by defective controller components. Before
removing the electrical panel, perform trou-
bleshooting procedures per
determine corrective action to be taken.
There are no user-serviceable parts inside the control-
ler. No attempt should be made to open the controller.
Opening the controller may damage it and will void the
warranty.
The controller is programmed at the factory specifi-
cally for the truck model on which it is equipped. It is
important to replace the controller with the correct pre-
programmed unit to assure proper performance set-
tings intended for that particular truck. See
18 for the preprogrammed controller number.
It is recommended that the controller exterior be
cleaned periodically, and if a Zapi Handset is avail-
able, this periodic cleaning provides a good opportu-
nity to check the controller's diagnostic history file. It is
also recommended that the controller's fault detection
circuitry be checked whenever the vehicle is serviced.
10-1.2.Cleaning
1. Turn off the key switch (20,
emergency disconnect (17).
2. Remove the upper compartment covers as
described in paragraph
3. Remove any dirt or corrosion from the bus bar
area. The controller should be wiped clean with a
moist rag. Allow it to dry before reconnecting the
battery.
4. Make sure the connections to the buss bars are
tight. Use two well insulated wrenches for this
task in order to avoid steering the buss bars.
10-1.3.Controller Removal.
1. Turn off the key switch (20,
emergency disconnect (17).
2. Remove the upper compartment covers as
described in paragraph
BL-E30-0515 - 03-01-2018
SECTION 10

ELECTRICAL COMPONENTS

SECTION 4, to
Figure 12-
Figure 12-18) and
5-2.
Figure 12-18) and
5-2.
3. Tag and disconnect harness (1,
controller (2, Figure
4. Remove two screws (1), two lock washers (15)
and remove controller (2) and heat sink (3) from
bracket (6).
10-1.4.Controller Installation.
1. Position controller (2,
(3) on bracket (6) and secure with two screws (1)
and two lock washers (15).
2. Reconnect harness (1,
(2, Figure 10-1).
3. Install upper compartment covers as described in
paragraph 5-2.
4. Turn on the key switch (20,
emergency disconnect (17).
10-1.5.Charger Removal.
1. Turn off the key switch (20,
emergency disconnect (17).
2. Remove the upper compartment covers as
described in paragraph
3. Tag and disconnect harness (1,
charger (13, Figure
4. Tag and disconnect remaining two charger leads
from the pump motor and the fuse. Refer to
ure 10-3.
5. Remove four screws (16,
lock washers (26). Remove charger (13) from
bracket (6).
10-1.6.Charger Installation.
1. Position charger (13,
and secure with four screws (16) and four lock
washers (26).
2. Reconnect the two charger leads to the pump
motor and the fuse. Refer to
3. Reconnect harness (1,
(13, Figure 10-1).
4. Install upper compartment covers as described in
paragraph 5-2.
5. Turn on the key switch (20,
emergency disconnect (17).
Figure 10-2) from
10-1).
Figure 10-1) and heat sink
Figure 10-2) to controller
Figure 10-1) and
Figure 12-18) and
5-2.
Figure 10-2) from
10-1).
Figure 10-1) and four
Figure 10-1) on bracket (6)
Figure 10-3.
Figure 10-2) to charger
Figure 12-18) and
Fig-
10-1