Servicing The Spark Plug; Cleaning The Cooling System - Toro 75210 Operator's Manual

Servicing the Spark Plug

Service Interval: Every 100 hours—Check the spark
plug(s).
Make sure the air gap between the center and side
electrodes is correct before installing the spark plug.
Use a spark plug wrench for removing and installing
the spark plug(s) and a gapping tool/feeler gauge to
check and adjust the air gap. Install a new spark
plug(s) if necessary.
Type: NGK BPR4ES
Air Gap: 0.75 mm (0.03 inch)
Removing the Spark Plug
1. Park the machine on a level surface and
disengage the blade-control switch.
2. Move the motion-control levers outward to the
N -L position, shut off the engine,
EUTRAL OCK
remove the key, engage the parking brake, and
wait for all moving parts to stop before leaving
the operating position.
3. Remove the spark plug
A
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Figure 40
Checking the Spark Plug
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.
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.
Set the gap to 0.75 mm (0.03 inches).
Figure 41
(Figure 40).
B
Installing the Spark Plug
Tighten the spark plug(s) to 22 N∙m (16 ft-lb) as shown
in Figure 42.
A
C
25-30 N-m
18.5-22.1 ft-lb
Cleaning the Cooling
System
Clean the air intake screen from grass and debris
before each use.
1. Park the machine on a level surface and
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disengage the blade-control switch.
2. Move the motion-control levers outward to the
N -L
EUTRAL
remove the key, engage the parking brake, and
wait for all moving parts to stop before leaving
the operating position.
3. Remove the air filter from the engine.
4. Remove the engine shroud.
5. To prevent debris entering the air intake, install
the air filter to the filter base.
6. Clean debris and grass from the parts.
7. Remove the air filter and install the engine
shroud.
8. Install the air filter.
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36
B
D
Figure 42
position, shut off the engine,
OCK
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