Servicing The Fuses; Adjusting The Safety Switches; Jump-Starting The Machine - Toro 74310 Operator's Manual

Servicing the Fuses

The electrical system is protected by fuses. It requires
no maintenance; however, if a fuse blows check the
component/circuit for a malfunction or short.
1. The fuses are located on right side behind the seat.
2. To replace the fuses, pull out on the fuse to remove it.
3. Install a new fuse.

Adjusting the Safety Switches

Adjust all safety switches so that the plunger extends 4.8 mm
to 6.4 mm (3/16 inch to 1/4 inch) from the switch body
when the plunger is compressed
1. 4.8 to 6.4 mm (3/16 to 1/4 inch)

Jump-Starting the Machine

1. Check and clean corrosion from the battery terminals
before jump-starting.
Note: Ensure that the connections are tight.
CAUTION
Corrosion or loose connections can cause
unwanted electrical voltage spikes at any time
during the jump-starting procedure.
Do not attempt to jump-start the machine
with loose or corroded battery terminals, or
damage to the engine or EFI may occur.
DANGER
Jump-starting a weak battery that is cracked,
frozen, has a low electrolyte level, or has
an open/shorted battery cell can cause an
explosion, resulting in serious personal injury.
Do not jump-start a weak battery if these
conditions exist.
2. Make sure that the booster battery is a good and fully
charged lead-acid battery at 12.6 V or greater.
(Figure 41).
Figure 41
Note: Use properly sized jumper cables with short
lengths to reduce voltage drop between systems. Make
sure that the cables are color coded or labeled for the
correct polarity.
CAUTION
Connecting the jumper cables incorrectly
(wrong polarity) can immediately damage the
EFI system.
Be certain of battery terminal polarity and
jumper cable polarity when hooking up
batteries.
WARNING
Batteries contain acid and produce explosive
gases.
• Shield the eyes and face from the batteries
at all times.
• Do not lean over the batteries.
Note: Be sure that the vent caps are tight and level.
Place a damp cloth, if available, over any vent caps
on both batteries. Be sure that the vehicles do not
touch and that both electrical systems are off and at the
same rated system voltage. These instructions are for
negative ground systems only.
3. Connect the positive (+) cable to the positive (+)
terminal of the discharged battery that is wired to the
starter or solenoid as shown in
1. Positive (+) cable on
discharged battery
2. Positive (+) cable on
booster battery
3. Negative (–) cable on the
booster battery
4. Negative (–) cable on the
engine block
4. Connect the other end of the positive cable to the
positive terminal of the booster battery.
39
Figure 42.
Figure 42
5. Booster battery
6. Discharged battery
7. Engine block