Toro 04470 Service Manual

Greensmaster 3250--D
Page 5 -- 37
Electrical System
B. Temperature correct each cell reading. For each
10
o
F(5.5
o
C) above 80
o
F (26.7
o
C) add 0.004 to the
specific gravity reading. For each 10
o
F(5.5
o
C) be-
low 80
o
F (26.7
o
C) subtract 0.004 from the specific
gravity reading.
Example: Cell Temperature 100
o
F
Cell Gravity 1.245
ADD (20
o
above 80
o
F) 0.008
Correction to 80
o
F 1.253
C. If the difference between the highest and lowest
cell specific gravity is 0.050 or greater or the lowest
cellspecificgravityislessthan1.225,chargethebat-
tery.C hargeattherecommendedrateandtime(see
Battery Charging below) or until the specific gravity
of all cells is 1.225 or greater with the difference in
specific gravity between the highest and lowest cell
less than0.050. Ifthese charging conditions can not
be met, replace the battery.
2. Perform a high--discharge test with an adjustable
load tester.
Thisisoneofthemostreliablemeansoftestingabattery
asitsimulatesthecold--crankingtest.Acommercialbat-
tery load tester is required to perform this test.
CAUTION
Followthemanufacturer’sinstructions whenus-
ing a battery tester.
A. Check the voltage across the battery terminals
prior to testing the battery. If the voltage is less than
12.0 VDC, recharge the battery.
B. If thebatteryhasbeencharged,apply a150amp
load for fifteen (15) seconds to remove the surface
charge. Use a battery load tester following the
manufacturer’s instructions.
C. Makesure thebatteryterminals arefreeofcorro-
sion.
D. Measure the temperature of the center cell.
E. Connectabattery loadtester tothebatterytermi-
nals following the manufacturer’s instructions. Con-
nect a digital multimeter to the battery terminals.
F. Applyatestloadof270amps(onehalfthebattery
Cranking Performance Specification) to the battery
for fifteen (15) seconds.
G. Take a battery voltage reading at fifteen (15) se-
conds, then remove the load.
H. Using the table below, determine the minimum
voltage for the cell temperature reading.
Minimum
Voltage
Battery Electrolyte
Temperature
9.6 70
o
F (and up) 21.1
o
C (and up)
9.5 60
o
F 15.6
o
C
9.4 50
o
F 10.0
o
C
9.3 40
o
F 4.4
o
C
9.1 30
o
F -- 1.1
o
C
8.9 20
o
F -- 6.7
o
C
8.7 10
o
F --12.2
o
C
8.5 0
o
F --17.8
o
C
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.
Battery Installation (Fig. 43)
IMPORTANT: To prevent possible electrical prob-
lems, install only a fully charged battery.
1. Makesuretheignitionswitchandallaccessoriesare
off.
2. Make sure the battery compartment is clean and re-
painted if necessary.
3. Makesurebatterycablesbatteryretainerareingood
condition.
4. Placethebattery initscompartment.Make sure bat-
teryis levelandflat.Pushthepositive(+) cableconnec-
torontopositivebatterypost.Donothammerasthiswill
damagethebattery.Tighten cable clampfastenerswith
two (2) wrenches.
5. Install and secure battery retainer with flange head
screw and flange nut. Do not overtighten to prevent
cracking or distorting the battery case.
6. Connect a digital multimeter ( set to amps) between
thenegativebatterypostandthenegative(--)cablecon-
nector. The reading should be less than 0.1 amp. If the
reading is 0.1 amp or more, the unit’s electrical system
should be tested and repaired.
7. Connect the negative (ground) cable connector to
thenegativebatterypost.Tightencableclampfasteners
with two (2) wrenches.
8. Coatbatterypostsandcableconnectorswithbattery
terminal protector (see Special Tools in this chapter) or
petroleum jelly to prevent corrosion.
Electrical
System

Toro 04470 Specifications

General

Brand	Toro
Model	04470
Category	Lawn Mower
Language	English