TM 11-6130-392-12
Table 2-1. Battery Charger Controls and Indicators
Item
Function
Control/Indicator
When released (normal position), measures current as determined by
VOLTAGE TEST-CHG mA (pushbutton switch)
1
CHANNEL SELECT switch and when START TIME switch IS pressed m
start charging cycle.
When pressed, displays voltage on panel meter for memory battery (Bl), or
batteries in holders or jacks. Set VOLTAGE TEST SELECT switch to B1.
HLDRS, or JACKS as appropriate voltage test
POWER ON (indicator lamp)
Lights when POWER ON-OFF switch IS set to ON and power IS applied
2
Controls ac input power. Trips to OFF if input current exceeds 10 amperes.
POWER ON-OFF (switch/circuit breaker)
3
Starts battery charger and timing operation.
4
START TIME (pushbutton switch)
SET CHARGE TIME (thumbwheel controlled numbers)
Sets time in hours and tenths of hours that battery charger will operate.
5
Maximum setting is 19.9 hours.
CHARGE TIME HOURS REMAINING (digital readout
Indicates remaining charging time m hours and tenths of an hour.
6
indicator)
7
Position B1 allows test of internal 9 volt battery.
VOLTAGE TEST SELECT (3 position rotary switch)
Position HLDRS allows voltage monitoring at battery holders Position
JACKS allows voltage monitoring at REMOTE BATTERY jacks.
Positions 1 thru 5 allow current or voltage montioning of battery channel
CHANNEL SELECT (5 position rotary switch)
8
selected.
Indicates charging current or voltage of battery being charged as selected by
9
Panel Meter
CHANNEL SELECT switch.
Holds batteries during charging.
10
Battery Holders
Use to indicate any desired charging data with a pencil.
Battery Holder Labels (erasable)
11
Sets maximum charging current for each channel.
12
CURRENT SET-700 mA -50 mA -200 mA (3 posi-
tion toggle switch, one for each channel)
13
Provides fine adjustment of charging current.
CURRENT SET-FINE ADJ (screwdriver adjusted con-
trol, one for each channel)
Provides connection point for charging remote batteries.
REMOTE BATTERY (positive and negative jacks, one
14
set for each channel)
Holders for eight 1 amp fuses as follows:
15
FUSES (rear panel)
F1 through F5-Protect channels 1 through 5.
F6--Protects battery charger power supply.
SPARE-Two spare fuses.
16
Memory Battery (IN) Access Door
Provides access to memory battery.
17
Normally set to 115V position Permits battery charger to operate from 230
INPUT VOLTAGE--115V-230V (2 position toggle
vac power source with power cable modification or adapter.
switch)
Section Ill. OPERATING UNDER USUAL CONDITIONS
(1) If meter needle points to 700 or above, release
2-6. Preliminary Control Settings
switch and go to paragraph 2-7.
WARNING
(2) If meter needle points below 700, release switch,
Dangerous fumes or gases may be generated
set POWER ON-OFF switch to OFF and go to paragraph
during battery charging operations. Be sure the
working area has adequate ventilation. Do not
NOTE
allow smoking or open flame near batteries;
vented gases may explode. Do not attempt to
A panel meter reading below 700 indicates a
faulty memory battery (B1 ) which should be
charge a damaged or leaking battery.
replaced.
50 mA (center) position.
g. Set POWER ON-OFF switch to OFF POWER ON
b. Using a 5/16 inch wrench, loosen locking nut on
indicator lamp should go out.
CURRENT SET-FINE ADJ controls (13).
2-7. Operating Procedures for Battery Charger PP-
c. Using a small bladed screwdriver, turn all CUR-
7286/U.
RENT SET-FINE ADJ controls fully counterclockwise.
CAUTION
Tighten locking nuts.
Do not charge more than one battery (one in the
d. Position VOLTAGE TEST SELECT switch (7) to
battery holder and one in the REMOTE BAT-
B1.
TERY jacks) on the same channel at the same
e. Set POWER ON-OFF switch (3) to ON. POWER
time.
ON indicator lamp should light.
NOTE
f. Press and hold VOLTAGE TEST pushbutton (1)
Charging channel 1 is used as an operating ex-
and observe panel meter.
ample in the following steps. The same instruc--
2-4 Change 1
