Check Interlock System - Toro Sand Pro 2020 Service Manual

2. Determine the charging time and rate using the
manufacturer's battery charger instructions or the
following table.
Battery Battery Charge Level
Reserve (Percent of Fully Charged)
Capacity Capacity
75% 50%
(Minutes)
80 or less 3.8 hrs 7.5 hrs
@
3 amps 3 amps
81 to 125 5.3 hrs 10.5 hrs
@
4 amps 4 amps
126 to 5.5 hrs 11 hrs
170 @
5 amps 5 amps
171 to 5.8 hrs 11.5 hrs
250 @
6 amps 6 amps
above 6 hrs 12 hrs
250 @
10 amps 10 amps 10 amps 10 amps

Check Interlock System

WARNING
The interlock switch is for the operator's
protection, so do not disconnect it. Check
switch operation daily to assure proper inter-
lock system operation. If the switch is defec-
tive, replace it before operating. Whether the
switch is operating properly or not, replace it
every two years to assure maximum safety. Do
not rely entirely on safety switches – use good
judgement!
Sand Pro 2020/3020/5020
25% 0%
11.3 hrs 15 hrs
@ @ @
3 amps 3 amps
15.8 hrs 21 hrs
@ @ @
4 amps 4 amps
16.5 hrs 22 hrs
@ @ @
5 amps 5 amps
17.3 hrs 23 hrs
@ @ @
6 amps 6 amps
18 hrs 24 hrs
@ @ @
Page 5 – 17
Do not charge a frozen battery because it can ex-
plode and cause injury. Let the battery warm to
60 F (15.5 C) before connecting to a charger.
Charge the battery in a well–ventilated place to
dissipate gases produced from charging. These
gases are explosive; keep open flame and elec-
trical spark away from the battery. Do not smoke.
Nausea may result if the gases are inhaled. Un-
plug the charger from the electrical outlet before
connecting or disconnecting the charger leads
from the battery posts.
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.
The purpose of the interlock system is to prevent the en-
gine from cranking or starting unless the traction pedal
is in "NEUTRAL".
1. Check interlock operation in a wide open area free
of debris and bystanders. Stop engine.
2. Sit on the seat. Depress traction pedal in forward
and reverse directions, while trying to start the engine in
each position. If the engine cranks with the pedal in ei-
ther the forward or reverse position, there may be a mal-
function in the interlock system. Repair problem
immediately. If the engine does not crank, the system is
operating correctly.
CAUTION
Electrical Systems