Servicing The Spark Plug - Toro 74571 M74571 Operator's Manual

Charging the Battery
Warning
Charging the battery produces gasses that can
explode.
Never smoke near the battery and keep sparks and
flames away from the battery.
Important Always keep the battery fully charged
(1.260 specific gravity), especially below 32°F (0°C) to
prevent battery damage.
1. Remove the battery from the chassis; refer to Removing
the Battery on page 27.
2. Check the electrolyte level; refer to Checking the
Electrolyte Level on page 28.
3. Remove the filler caps from the battery and connect a
2 amp battery charger to the battery posts.
4. Charge the battery at a rate of 2 amps or less for 4 hours
(12 volts). Do not overcharge the battery.
5. When the battery is fully charged, install the filler caps.
6. Install the battery in the chassis; refer to Installing the
Battery on page 28.

Servicing the Spark Plug

Check the spark plug after every 25 operating hours. Install
a new Champion RC12YC or equivalent spark plug after
every 100 operating hours. Ensure that the air gap between
the center and side electrodes is 0.030 in. (0.76 mm) before
installing the spark plug. Use a spark plug wrench for
removing and installing the spark plug and a gapping tool
or feeler gauge to check and adjust the air gap.
Removing the Spark Plug
1. Disengage the blades (PTO).
2. Set the parking brake.
3. Stop the engine and wait for all moving parts to stop.
4. Remove the ignition key.
5. Open the hood.
6. Disconnect the wire from the spark plug (Fig. 26).
1. Spark plug
7. Clean around the spark plug to prevent dirt from falling
into the engine and potentially causing damage.
8. Remove the spark plug and metal washer (Fig. 26).
29
1
2
Figure 26
2. Spark plug wire
m–6419