Cleaning The Cooling System - Toro TimeCutter HD X5450 Operator's Manual

A
g027478
Figure 48
Note: Due to the deep recess around the spark plug,
blowing out the cavity with compressed air is the most
effective method for cleaning. The spark plug is most
accessible when the blower housing is removed for
cleaning.
Checking the Spark Plug
Important: Do not 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 0.76 mm (0.03 inch).
A
Figure 49
B
B
g027479
Installing the Spark Plug
Tighten the spark plug(s) to 25 to 30 N∙m (18.5 to 22.1 ft-lb).
A
g027478
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. Disengage the blade-control switch and apply the
parking brake.
2. Shut off the engine, remove the key, 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.
g027479
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.
36
B
D
g027960
Figure 50
g027960