Ryobi RY9904 - Manual (Page 6)

4 − English
IMPORTANT SAFETY INSTRUCTIONS
13. PREPARING TO CHARGE
a. If necessary to remove battery from vehicle to charge,
always remove grounded terminal from battery first.
Make sure all accessories in the vehicle are off, so
as not to cause an arc.
b. Be sure area around battery is well ventilated while
battery is being charged.
c. Clean battery terminals. Be careful to keep corrosion
from coming in contact with eyes.
d. Follow the manufacturer's instructions on properly
filling the battery with water if necessary. Always
follow the manufacturer's instructions on charging
the battery.
e. Study all battery manufacturer's specific precautions
while charging and recommended rates of charge.
f. Determine voltage of battery by referring to car
owner's manual and make sure that output voltage
selector switch is set at correct voltage. If battery
maintainer has adjustable charge rate, charge battery
initially at lowest rate.
14. BATTERY MAINTAINER LOCATION
a. Locate battery maintainer as far away from battery
as DC cables permit.
b. Never place battery maintainer directly above battery
being charged; gases from battery will corrode and
damage maintainer.
c. Never allow battery acid to drip on battery maintainer
when reading electrolyte specific gravity or filling
battery.
d. Do not operate battery maintainer in a closed-in area
or restrict ventilation in any way.
e. Do not set a battery on top of battery maintainer.
15. DC CONNECTION PRECAUTIONS
a. Connect and disconnect battery charging cables only
after setting any battery maintainer switches to “off”
position and removing AC cord from electric outlet.
Never allow clamps to touch each other.
b. Attach clamps to battery and chassis as described
in the Operation section.
16. Follow these steps when battery is installed in
vehicle. A spark near battery may cause battery
explosion. To reduce risk of a spark near battery:
a. Position AC and DC cords to reduce risk of damage
by hood, door, or moving engine parts.
b. Stay clear of fan blades, belts, pulleys, and other
parts that can cause injury to persons.
c. Check polarity of battery posts. Positive
(Pos, P,+) battery post usually has larger diameter
than Negative (Neg, N, –) post.
d. Determine which post of battery is grounded
(connected) to the chassis. If negative post is
grounded to the chassis, see 16e "negative-
grounded vehicle". If positive post is grounded to
the chassis, see 16f, "positive-grounded vehicle".
e. For negative-grounded vehicle, connect POSITIVE
(RED) clamp from battery charging cable 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 carbure tor, fuel lines, or sheet-metal body
parts. Connect to a heavy gage metal part of the
frame or engine block.
f. For positive-grounded vehicle, connect NEGATIVE
(BLACK) clamp from battery charging cable to
negative (NEG, N, –) ungrounded post of battery.
Connect POSITIVE (RED) 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.
g. When disconnecting battery maintainer, turn
switches to off, disconnect AC cord, remove clamp
from vehicle chassis, and then remove clamp from
battery terminal.
h. See the battery's operator's manual for length of
charge information.
17. Follow these steps when battery is outside the vehicle.
A spark near the battery may cause battery explosion.
To reduce risk of a spark near battery:
a. Check polarity of battery posts. Positive
(Pos, P,+) battery post usually has larger diameter
than Negative (Neg, N, –) post.
b. Attach at least a 24-in. long 6-gauge (AWG) insulated
battery cable to negative (Neg, N, –) battery post.
c. Connect positive (RED) charger clip to positive
(Pos, P, +) post of battery.
d. Position yourself and free end of cable as far away
from battery as possible, then connect negative
(black) charger clamp to free end of cable.
e. Do not face battery when making final connection.
f. When disconnecting battery maintainer, always do
so in reverse sequence of connecting procedure and
break first connection while as far away from battery
as practical.
g. A marine (boat) battery must be removed and
charged on shore. To charge it on board requires
equipment specially designed for marine use.