EXPORT POWERDRIVE CHARGER (ONBOARD)
Test Procedures
2008 Export Battery Charger Maintenance and Service Manual
Page 4-13
4
3.
Style C 6 x 8-Volt Precedent only:
With a multimeter set to 200 volts DC, measure the voltage of the
battery pack between the positive (+) post of battery no. 1 and the negative (–) post of battery no. 6
(Figure 4-9, Page 4-13)
.
4. Normal no-load voltage should be between 50 and 52 volts for fully charged batteries. The voltage of the
battery pack must be over 32 volts DC to allow the onboard computer to close the charger relay.
If battery
pack voltage is too low to start charger, temporarily bypass the charger relay.
See Charging a Battery
Pack that has Low Voltage on page 4-33.
TEST PROCEDURE 2 – CONTROL BOARD
See General Warning, Section 1, Page 1-1.
DC Circuit Test
1. Disconnect AC cord from outlet. DC cord red, black, and blue wires remain connected to the vehicle. All
wires remain connected to the control board. Set multimeter to 200 volts DC.
See following DANGER.
ý
DANGER
• Do not touch any wire or component in the battery charger while DC power is present. Failure
to heed this warning will result in an electric shock.
2. Place black (–) probe of multimeter on terminal with blue DC cord wire and red (+) probe to terminal with
red relay wire
(Figure 4-10, Page 4-14)
.
3. Multimeter should indicate full battery voltage (approximately 47-50 volts). If reading is incorrect, replace
control board.
Figure 4-9 Battery Voltage Test – Precedent Style C
Battery Configuration
(Viewed from driver side of vehicle)
1. RED probe to battery no. 1 (+).
2. BLACK probe to battery no. 6 (-).
2
3
4
5
6
+
1
2m
20
m
200
m
2k
200
200
200
200
20
2
200
m
500
20k
200k
2000
k
1000
OFF
WAVETEK
5XL
V
V
V
A
!
!
COM
200nA
MAX
1000 ---
750V
FUSED