Replacement Of Fuse; Change Of Power Supply Voltage; Parallel Wiring Of Power Cables - JRC JHS-7 Instruction Manual

3.4.2 Replacement of Fuse

(1) Remove the plug of the AC power cable for
the battery charger from the convenience
outlet.
(2) Remove the power supply terminal
protecting cover on the front of the battery
charger as shown in Figure 3-8.
(3) Remove the fuse from the fuse holder, and
mount a new fuse. Use a 250V, 0.5A, 5.2×
20L fuse.
(4) Put back the cover.
Figure 3-8

3.4.3 Change of Power Supply Voltage

AC105, 115, 210, or 230 V can be selected by
changing among the taps on the internal
transformer. A soldering iron is needed for the
change.
(1) Remove the plug for the AC power supply
cable for the battery charger.
(2) Remove the power supply terminal
protecting cover as shown in Figure 3-8,
(3) Remove five screws from the bottom of
Battery Charger. (See Figure 3-9.)
(4) Remove the outer cover. (See Figure 3-8.)
(5) Solder the cable to any desired voltage
terminal of the power transformer. (See
Figure 3-10 and Table 3-2 .)
(6) Assemble the battery charger properly.
Figure 3-9 Figure 3-10
7
Power Supply Voltage
AC100V ～ 110V
AC115V ～ 120V
AC200V ～ 220V
AC230V ～ 240V
Table3-2 Power Supply Voltage vs
Terminal of the power transformer.

3.4.4 Parallel Wiring of Power Cables

It is advisable to put the power cables in parallel
when several battery chargers are used.
In the following example, three battery chargers
are used. No wiring materials are necessary
because the attached cables are used after
cutting it.
(1) Determine the locations of battery
chargers and the suitable length of cables
for wiring.
(2) Remove the power supply terminal
protecting covers. (See Figure 3-8.)
(3) It is not necessary to remove the attached
power cables from the terminal boards.
(4) According to the wiring diagram shown in
Figure 3-11, cut and connect the attached
power cables for the first two battery
chargers. For easy work, the attached
crimp-style terminals may be used. It is
not necessary to cut the power cable of the
remaining battery charger.
(5) Put back the power terminal protecting
cover.
(6) Insert the plug of the power cable of the
last battery charger into the AC
convenience outlet.
Figure 3-11
Terminal of the
power transformer.
105 V
115 V
210 V
230 V