Toro Reelmaster 6500-D Service Manual page 179

C. If the difference between the highest and lowest
cell specific gravity is 0.050 or greater or the lowest
cell specific gravity is less than 1.225, charge the bat-
tery. Charge at the recommended rate and time giv-
en in Charging or until all cells specific gravity is
1.225 or greater with the difference in specific gravity
between the highest and lowest cell less than 0.050.
If these charging conditions can not be met, replace
the battery.
3. Perform a high-discharge test with an adjustable
load tester.
This is one of the most reliable means of testing a battery
as it simulates the cold-cranking test. A commercial bat-
tery load tester is required to perform this test.
Follow the manufacturer's instructions when us-
ing a battery tester.
A. Check the voltage across the battery terminals
prior to testing the battery. If the voltage is less than
12.4 VDC, recharge the battery.
B. If the battery has been charged, apply a 150 amp
load for 15 seconds to remove the surface charge.
Use a battery load tester following the manufactur-
er's instructions.
C. Make sure battery terminals are free of corrosion.
D. Measure the temperature of the center cell.
E. Connect a battery load tester to the battery termi-
nals following the manufacturer's instructions.
Connect a digital multimeter to the battery terminals.
F. Apply a test load of one half the Cranking Perfor-
mance (see Battery Specifications) rating of the bat-
tery for 15 seconds.
G. Take a voltage reading at 15 seconds, then re-
move the load.
H. Using the table below, determine the minimum
voltage for the cell temperature reading.
Reelmaster 6500-D/6700-D
CAUTION
Page 5 - 39
Minimum Battery Electrolyte
Voltage
9.6 70_F (and up)
9.5 60_F
9.4 50_F
9.3 40_F
9.1 30_F
8.9 20_F
8.7 10_F
8.5 0_F
I. If the test voltage is below the minimum, replace
the battery. If the test voltage is at or above the mini-
mum, return the battery to service.
Installation
IMPORTANT: To prevent possible electrical prob-
lems, install only a fully charged battery.
1. Make sure ignition and all accessories are off.
2. Make sure battery compartment is clean and re-
painted if necessary.
3. Make sure all battery cables and connections are in
good condition and battery retainer has been repaired
or replaced.
4. Place battery in its compartment. Make sure battery
is level and flat. Connect positive cable connector onto
positive battery post. Tighten cap screw and lock nut
with two wrenches.
5. Secure battery retainer. Do not overtighten to pre-
vent cracking or distorting the battery case.
6. Apply a light coat of skin-over grease on all battery
posts and cable connectors to reduce corrosion after
connections are made.
7. Connect a digital multimeter (set to amps) between
the negative battery post and the negative (ground)
cable connector. The reading should be less than 0.1
amp. If the reading is 0.1 amp or more, the unit's electri-
cal system should be tested and repaired.
8. Connect negative (ground) cable connector to the
negative battery post. Tighten cap screw and lock nut
with two wrenches.
Temperature
21.1_C (and up)
15.6_C
10.0_C
4.4_C
-1.1_C
-6.7_C
-12.2_C
-17.8_C
Electrical System (Rev. C)