Schumacher SF 4022 Battery Charger User Manual


 
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OPERATING INSTRUCTIONS: CHARGING BATTERY IN VEHICLE
When charging battery in the vehicle, take care to determine the battery type and which post is grounded. To reduce risk of a spark
near battery, follow these steps when battery is installed in vehicle. WARNING: A spark near battery may cause battery explosion.
OPERATING INSTRUCTIONS: CHARGING BATTERY OUT OF VEHICLE
When charging battery out of vehicle, take care to determine the battery type. To reduce risk of a spark near battery, follow these steps
when battery is outside vehicle. WARNING: A spark near the battery may cause battery explosion. WARNING: When removing battery
from vehicle or boat, disconnect grounded pole first. When disconnecting, make sure all accessories are off, so as not to cause an arc.
(NOTE: A marine (boat) battery must be removed and charged on shore. (To charge on board requires special equipment designed for
marine use.) WARNING: When reinstalling battery, attach the ground post first.
F.
G.
1. Position AC power cord and DC charging cords to reduce
risk of damage by hood, door, or moving engine parts.
2. Stay clear of fan blades, belts, pulleys, and other parts that
can cause injury.
3. Check polarity of battery posts. Battery case will be marked
by each post: POSITIVE (POS, P, +) and NEGATIVE (NEG,
N, -). NOTE: The positive battery post usually has a larger
diameter than the negative post.
4. Determine which post of battery is ground (connected) to
chassis.
NOTE: The negative post is normally grounded.
NEGATIVE GROUNDED POST
5A. For negative-grounded vehicle, connect POSITIVE (RED)
clip from battery charger to POSITIVE (POS, P, +) ungrounded
post of battery. Connect NEGATIVE (BLACK) clip to vehicle chas-
sis or engine block away from battery. Connect to a heavy gauge
metal part of the frame or engine block.
POSITIVE GROUNDED POST
5B. For positive-grounded vehicle, connect NEGATIVE
(BLACK) clip from battery charger to NEGATIVE (NEG, N, -)
ungrounded post of battery. Connect POSITIVE (RED) clip to
vehicle chassis or engine block away from battery. Connect to a
heavy gauge unpainted metal part of the frame or engine block.
WARNING: Do not connect clip to carburetor, fuel lines, or sheet-
metal body parts. NOTE: Attach clips to battery post and twist or
rock back and forth several times to make a good connection.
This tends to keep clips from slipping off terminals and helps to
reduce risk of sparking.
6. Select amperage.
7. Follow steps 1-4 in Battery Charger Section K.
8. When the battery is fully charged, unplug the charger from
the AC power source.
9. Remove charger clips from (1) chassis and (2) battery pole
in that order.
10. Clean and store battery charger.
1. Check polarity of battery posts. Battery case will be marked
by each post: POSITIVE (POS, P, +) and NEGATIVE (NEG,
N, -). NOTE: The positive battery post usually has a larger
diameter than the negative post.
2. Attach a 24-inch long (or longer) 6-gauge (AWG) insulated
battery cable to NEGATIVE (NEG, N, -) battery post.
(The 24" lead is not supplied. You may purchase at most
automotive stores.)
The 24" lead provides a safer connection condition. Spark-
ing or arcing could occur when connecting the charger clip
to the lead.
3. Connect POSITIVE (RED) charger clip to POSITIVE (POS,
P, +) post of battery. Rock clip back and forth to make good
connection.
4. Position yourself and free end of 24 inch cable as far away
from battery as possible. Then connect NEGATIVE (BLACK)
charger clip to free end of cable.
WARNING: Do not face battery when making final connec-
tion. Rock clip back and forth to make a good connection.
5. Select amperage:
6. Follow steps 1-4 in Battery Charger Section.
7. When battery is fully charged, unplug charger from AC out-
let.
8. When battery is fully charged and the charger is unplugged:
(1) Remove clip from end of the Negative end of cable, then
(2) Remove clip from Positive battery post, in that order.
9. Clean and store battery charger.
WARNING: Be sure area around the battery is well venti-
lated while battery is being charged. Gas can be forcefully
blown away by using a piece of cardboard or other non-
metallic material as a fan.
Do not use to parallel charge batteries
24" Cable
Battery
Cable