Greasing And Lubrication - Toro 74182 Operator's Manual

Maintenance
Checking the Spark Plug
1. Look at the center of the spark plug(s) (Fig. 20).
If you see light brown or gray on the insulator,
the engine is operating properly. A black coating
on the insulator usually means the air cleaner is
dirty.
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.
2. Check the gap between the center and side
electrodes (Fig. 20). Bend the side electrode
(Fig. 20) if the gap is not correct.
2
1
Figure 20
1. Center electrode insulator
2. Side electrode
Installing the Spark Plug
1. Install the spark plug(s). Make sure the air gap is
set correctly.
2. Tighten the spark plug(s) to 20 ft-lb (27 N.m).
3. Push the wire(s) onto the spark plug(s) (Fig. 19).
26
3
0.030 in.
(0.76 mm)
m–3215
3. Air gap (not to scale)
(s)

Greasing and Lubrication

Grease the castor wheel bearings and motion control
lever pivots every 8 operating hours. Grease more
frequently when operating conditions are extremely
dusty or sandy.
Grease Type: General-purpose grease.
How to Grease
1. Disengage the power take off (PTO) and turn the
ignition key to "OFF" to stop the engine.
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
1. Lubricate the castor wheel bearings and motion
control lever pivots until grease begins to ooze
out of the bearings (Fig. 21).
m–3289 m–3222
Figure 21