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BATTERY SERVICE
4. To rechargebattery,insert
plug into
State of ChargeSpecificGravityReading
trickle chargerinto
charger jack.Plug
1.265
110 volt AC outlet,allowingbatteryto ChargedFully
75% Charged
1.225
charge approximately ten hours.
50% Charged
1.190
25% charged
1.155
Discharged
1.120
NOTE
1. Remove caps from battery using screwdriver.
Do not chargeforlongerthan
48
hours, as extended charge times will
cause electrolyte to evaporate leaving a dry and damaged battery.
Allowbattery to stand for some time
after filling
before
placing
on
charge
2. Placehydrometer(part
no. 681007) (see
figure 3) into each cell. Squeeze bulb
on top of hydrometer and release slowly.
5. When charging
battery
use
only the
LAWN-BOY chargersupplied
with the
mower. Do not charge at a rate exceeding 1 amp.
3. Number of balls floatingindicatescondition of battery. If any cell reads two
ballsor less floating, rechargebattery
for 10 hours.
Servicing
Specific Gravity of Battery
When using a hydrometer that showsspecific gravity,thefollowingspecificgravity
numbers (when measured at 80°F (26.7°C)
indicate
the
approximate
battery
charge
condition.
FIGURE 3
SERVICE BULLETIN REFERENCES
13-3
REVISED 1977