Battery Charger Controls; Dc Connection Precautions; Follow These Steps When Battery Is Installed In Vehicle - Schumacher SE-70MA Owner's Manual

D.
NOTE: A buzz, or hum is normal when the output cables have
been disconnected and the AC power cord is still connected to
an electrical source (i.e. wall outlet).
OPERATION – Model SE-70MA
Two switches permit operation and volt selection.
Switch #1 – OPERATION SELECTOR
Mode 1 – Manual setting: Warning: This charging must be moni-
tored and stopped when the battery is charged. Overcharging
will damage the battery.
Mode 2 – Automatic setting for Conventional and Low Mainte-
nance Batteries. If you are not sure of your battery type, use the
Conventional setting.
Mode 3 – Automatic setting is for Maintenance Free and Deep
Cycle batteries.
Switch #2 – VOLT SELECTOR
Select either the 12 or 24-volt setting: Use the 12-volt setting for
a 12-volt battery and the 24-volt setting for two 12-volt batteries
hooked up in series.
OPERATION SELECTOR
MANUAL AUTOMATIC FOR
▼ ▼
MAINTENANCE
FREE AND
DEEP CYCLE
(SWITCH #1)
BATTERIES
▲
AUTOMATIC FOR CONVENTIONAL
AND LOW MAINTENANCE BATTERIES
E.
1. Connect and disconnect DC output clamps only after setting
any charger switches to off position and removing AC cord
from electric outlet. Never allow clamps to touch each other.
F.

FOLLOW THESE STEPS WHEN BATTERY IS INSTALLED IN VEHICLE

A SPARK NEAR BATTERY MAY CAUSE BATTERY EXPLOSION.
FOLLOW THESE STEPS TO REDUCE RISK OF SPARK NEAR
BATTERY:
1. Position AC and DC cords to reduce risk of damage by hood,
door, or moving engine part.
2. Stay clear of fan blades, belts, pulleys, and other parts that
can cause injury to persons.
3. Check polarity of battery posts. POSITIVE (POS, P,+) battery
post usually has larger diameter than NEGATIVE (NEG, N, -
) post.
4. Determine which post of battery is grounded (connected to
the chassis). If negative post is grounded to chassis (as in
most vehicles), see No. 5. If positive post is grounded to the
chassis, see No. 6.
5. For a negative-grounded vehicle, connect POSITIVE (RED)
clamp from battery charger to POSITIVE (POS, P,+)
ungrounded post of battery. Connect NEGATIVE (BLACK)
clamp to vehicle chassis or engine block away from battery.
Do not connect clamp to carburetor, fuel lines, or sheet-
metal body parts. Connect to a heavy gage metal part of the
frame or engine block. (Figure 2)
6. For a positive-grounded vehicle, connect NEGATIVE (BLACK)
clamp from battery charger to NEGATIVE (NEG, N, -)

BATTERY CHARGER CONTROLS

VOLT
SELECTOR
(SWITCH #2)
▲
▲
12 VOLT 24 VOLT

DC CONNECTION PRECAUTIONS

3
If more than one battery is to be charged, be sure the total battery
voltage is not less than that of the charger or damaged could
result to batteries and charger. Diagram for series hook up is
shown below:
Use #10 AWG jumper wires to connect batteries.
2. Attach clamps to battery posts and twist or rock back and
forth several times to make a good connections This tends
to keep clamps from slipping off terminals and helps to
reduce risk of sparking.
GROUND
(NEG)
FIGURE 2: CONNECTION TO NEGATIVE GROUNDED BATTERY
ungrounded post of battery. Connect POSITIVE (RED) clip
to vehicle chassis or engine block away from battery. Do
not connect clamp to carburetor, fuel lines, or sheet-mebl
body parts. Connect to a heavy gage metal part of the frame
or engine block. (Figure 3)
7. When disconnecting charger, disconnect AC cord, remove
clamp from vehicle chassis, and then remove clamp from
battery terminal, in that order.
8. See charge period for length of charge information.