Toro 3200, Service Manual

Page: 222 / 274

Charging
To minimize possible damage to the battery and allow
the battery to be fully charged, the slow charging meth-
od is presented here. This charging method can be ac-
complished with a constant current battery charger
which is available in most shops.
CAUTION
instructions Follow the manufacturer’s
when using a battery charger.
Note: Using specific gravity of the battery cells is the
most accurate method of determining battery condition.
1. Determine the battery charge level from either its
open specific gravity or circuit voltage.
Battery Charge
Level
Specific
Gravity
Open Circuit
Voltage
100% 1.265 12.68
75% 1.225 12.45
50% 1.190 12.24
25% 1.155 12.06
0% 1.120 11.89
2. Determine the charging time and rate using the
manufacturer’s battery charger instructions or the
following table.
CAUTION
Do not charge a frozen battery because it
tery warm to 60
_
F (15.5
_
C) before con-
Charge the battery in a well–ventilated
charging. These gases are explosive;
Nausea may result if the gases are in-
haled. Unplug the charger from the elec-
trical outlet before connecting or discon-
necting the charger leads from the battery
posts.
can explode and cause injury. Let the bat-
necting to a charger.
place to dissipate gases produced from
keep open flame and electrical spark
away from the battery. Do not smoke.
3. Following the manufacturer’s instructions, con-
nect the charger cables to the battery. Make sure a good
connection is made.
4. Charge the battery following the manufacturer’s
instructions.
5. Occasionally check the temperature of the battery
electrolyte. If the temperature exceeds 125
_
F (51.6
_
C)
or the electrolyte is violently gassing or spewing, the
charging rate must be lowered or temporarily stopped.
6. Three hours prior to the end of the charging, mea-
sure the specific gravity of a battery cell once per hour.
The battery is fully charged when the cells are gassing
freely at a low charging rate and there is less than a
0.003 change in specific gravity for three consecutive
readings.
Battery Battery Charge Level
Reserve (Percent of Fully Charged)
Capacity Capacity
(Minutes)
75% 50% 25% 0%
80 or less 3.8 hrs 7.5 hrs 11.3 hrs 15 hrs
@ @ @ @
3 amps 3 amps 3 amps 3 amps
81 to 125 5.3 hrs 10.5 hrs 15.8 hrs 21 hrs
@ @ @ @
4 amps 4 amps 4 amps 4 amps
126 to 5.5 hrs 11 hrs 16.5 hrs 22 hrs
170 @ @ @ @
5 amps 5 amps 5 amps 5 amps
171 to 5.8 hrs 11.5 hrs 17.3 hrs 23 hrs
250 @ @ @ @
6 amps 6 amps 6 amps 6 amps
above 6 hrs 12 hrs 18 hrs 24 hrs
250 @ @ @ @
10 amps 10 amps 10 amps 10 amps
Electrical System
Page 6 – 46
Greensmaster 3200/3200–D