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 hand 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 plunger extends 4.8 mm to 6.4
mm (3/16 inch to 1/4 inch) from switch body when plunger
is compressed (Figure 42).

Jump Starting the Machine

1. Check and clean corrosion from the battery terminals
before jump-starting. 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 with loose or
corroded battery terminals, or damage to the
engine or EFI may occur.
DANGER
Jump-starting a weak battery that is cracked
or frozen, or has a low electrolyte level or
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 volts or greater. Use
properly sized jumper cables with short lengths to
Figure 42
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 the vent caps are tight and level. Place
a damp cloth, if available, over any vent caps on both
batteries. Be sure 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 Figure 43.
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.
5. Connect the black negative (–) cable to the other
terminal (negative) of the booster battery.
37
Figure 43
5. Booster battery
6. Discharged battery
7. Engine block