Toro 30431, Operator'S Manual, Page: 28 / 48

28
Important Never clean the spark plug(s). Always
replace the spark plug(s) when it has: a black coating, worn
electrodes, an oily film, or cracks.
3. Check the gap between the center and side electrodes
(Fig. 29). Bend the side electrode (Fig. 29) if the gap is
not correct.
0.030 inch
(.75 mm)
2
3
1
Figure 29
1. Center electrode insulator
2. Side electrode
3. Air gap (not to scale)
Installing the Spark Plug
(s)
1. Install the spark plug(s). Make sure the air gap is set
correctly.
2. Tighten the spark plug(s) to 11 ft-lb (15 N m).
3. Push the wire(s) onto the spark plug(s) (Fig. 28).
Greasing and Lubrication
Service Interval/Specification
Refer to the Check Service Reference Aid decal for
location and interval of greasing and lubrication
(Figure 30).
Grease with No. 2 general purpose lithium base or
molybdenum base grease.
How to Grease
1. Disengage the power take off (PTO), set the parking
brake, and turn the ignition key to Off. Remove the key.
2. Clean the grease fittings with a rag. Make sure to scrape
any paint off the front of the fitting(s).
3. Connect a grease gun to the fitting. Pump grease into
the fittings until grease begins to ooze out of the
bearings.
4. Wipe up any excess grease.
Where to Add Grease
Lubricate the grease fittings as shown on the Check
Service Reference Aid decals (Fig. 30).
Figure 30
Lubricating the Caster and Wheel
Bearings
1. Lubricate the front wheel bearings and front spindles
until grease begins to ooze out of the bearings (Fig. 31).
2. Raise the rear of the machine and use jack stands to
support the machine.
3. Remove the rear wheel and tire assembly.
4. Remove rear wheel grease cap. Lubricate the rear wheel
bearing (Fig. 31).
5. Install the grease cap.
6. Install the rear wheel and tire assembly.
Note: Make sure the rear wheel grease caps are removed
before lubricating rear wheels.