Service manual

19
c. Store the battery with a full charge. A dis-
charged battery will freeze (refer to the table
below).
Specific Gravity Freezing Temp (°F)
1.265 -71
1.250 -62
1.200 -16
1.150 5
1.100 16
d. Recharge battery when ever the specific
gravity value is less than 1.225
3. Battery Removal
Warning:
When removing the cables from the battery fol-
low these steps to avoid a short between the
wrench and the frame.
a. Remove the Negative (black) cable.
b. Remove the Positive (red) cable.
c. Release the hold down straps.
d. Remove the battery without tipping.
4. Installing the Battery
Note: The battery is delivered from the fac-
tory fully charged and filled with electrolyte.
a. Attach the Positive (red) cable.
b. Attach the Negative (black) cable.
c. Attach the rubber battery strap.
5. Jump Starting
Warning:
Note: For E.F.I. Tanks, the battery must be
disconnected (Negative lead) for storage
exceeding four weeks. Do not “Jump Start” an
E.F.I. unit, recharge or replace battery to avoid
damage to the Electronic Control Unit (ECU).
Failure to use this starting procedure can cause
sparking, and the gases in the battery to
explode.
a. Attach the end of the red jumper cable to the
Positive terminal (+) of the charged battery.
b. Attach the other end of the red jumper cable
to the Positive terminal (+) of the low charge
battery.
c. Attach the end of the black jumper cable to
the Negative terminal of the charged battery.
d. Attach the other end of the black jumper
cable to the frame of the unit with the low
charge battery.
6. Fuses: There is one fuse located in the wiring
between the ignition and start switch and other
electrical components. This is a standard plug-
in type automotive fuse rated at 20 amp.
7. Safety Switches: There are three safety
switches in the electrical circuit which control
the engine. They are (1) the blade clutch switch,
(2) the parking brake switch, and (3) the seat
switch.They operate so that in order to start the
engine, the blade clutch switch must be off, the
parking brake must be engaged, and the speed
control pedals must be in the neutral position.
Once the engine is started, the seat must be
occupied and the parking brake must be
released before the speed control pedals can
be moved. Also, the seat must be occupied
before the blade clutch switch can cause the
blades to rotate.
8. Safety Switch Operation Checks: The follow-
ing operational checks should be made daily.
a. Blade Clutch Switch: Sit in the operator’s
seat. With the speed control pedals in the
neutral position and the parking brake
engaged, turn the blade clutch switch “on”
and try to start the engine. The engine
should not start. If it does, the blade clutch
switch must be replaced. If the engine does
not start, turn the blade clutch switch “off”
and start the engine. Now turn the blade
clutch switch “on” and the blades should
rotate. If the blades do not turn, the blade
clutch switch must be replaced, the seat
switch must be replaced or the electric PTO
clutch must be repaired.
The air-gap should be checked every 100
hrs. (or less, if severe operating conditions
exist such as when there are many on/off
cycles, mulching operations, material collec
-
tion systems used, and dusty/dirty condi-
tions), and the air-gap adjusted if more than
0.025". To inspect, remove the “negative”
cable from the battery and all sparkplug
wires. The air-gap should be checked with
feeler gages in the three slots of the BBC
(PTO Clutch). See page 24 for air gap
adjustment specs. There are three inspec
-
tion slots in the brake cover. To adjust, suc-
cessively tighten each of the three gap
adjustment nuts an equal amount. Insert a
feeler gage (see page 24 for specs) into
each slot as the air gap adjustment nut are
tightened. The correct adjustment occurs
when slight contact with the feeler gage
occurs. Engage the BBC (PTO Clutch) a
couple of times, and re-check the air-gap. If it
is not between the specs listed on page 24,
repeat the adjustment procedure.