B. Temperature correct each cell reading. For each
oF (5.5oC) above 80oF (26.7oC) add 0.004 to the
specific gravity reading. For each 10oF (5.5oC) be-
low 80oF (26.7oC) subtract 0.004 from the specific
terminals.
10
F. Apply a test load of one half the Cranking Perfor-
mance (see Battery Specifications) rating of the bat-
tery for 15 seconds.
gravity reading.
Example: Cell Temperature
Cell Gravity
100oF
1.245
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.
100
(37.7
oF minus 80oF equals 20oF
oC minus 26.7oC equals 11.0oC)
Minimum
Voltage
Battery Electrolyte
Temperature
20
(11
oF multiply by 0.004/10oF equals 0.008
oC multiply by 0.004/5.5oC equals 0.008)
9.6
9.5
9.4
9.3
9.1
8.9
8.7
8.5
70oF (and up)
60oF
21.1C (and up)
ADD (conversion above)
Correction to 80oF (26.7oC)
0.008
1.253
15.6oC
10.0oC
4.4oC
50oF
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
battery. Charge at the recommended rate and time
given in Charging or until all cells specific gravity is
40oF
30oF
20oF
−1.1oC
−6.7oC
−12.2oC
−17.8oC
10oF
0oF
1.225
or greater with the difference in specific grav-
ity between the highest and lowest cell less than
If these charging conditions can not be met,
0.050.
replace the battery.
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.
3.
Perform a high−discharge test with an adjustable
load tester.
Installation
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.
IMPORTANT: To prevent possible electrical prob-
lems, install only a fully charged battery.
1.
off.
Make sure ignition switch and all accessories are
CAUTION
2.
painted if necessary.
Make sure battery compartment is clean and re-
Follow the manufacturer’s instructions when us-
ing a battery tester.
3.
Make sure all battery cables and connections are in
A. Check the voltage across the battery terminals
prior to testing the battery. If the voltage is less than
good condition and battery clamp or hold down has
been repaired or replaced.
12.4
VDC, recharge the battery.
4.
Place battery in its compartment. Make sure 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.
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-
C. Make sure the battery terminals are free of corro-
sion.
vent cracking or distorting the battery case.
6.
Apply a light coat of grease on all battery posts and
D. Measure the temperature of the center cell.
cable connectors to reduce corrosion after connections
are made.
E. Connect a battery load tester to the battery ter-
minals following the manufacturer’s instruc-
tions. Connect a digital multimeter to the battery
Reelmaster 4000−D
Page 5 − 33
Electrical System (Rev. C)
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
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| Tags | Toro 4000 D, Toro 98958SL |
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