Cleaning The Blower Housing; Fuel System Maintenance; Replacing The Fuel Filter - Toro 74891 Operator's Manual

Installing the Spark Plug
Tighten the spark plug to 27 N•m (20 ft-lb) as shown in
Figure 43.
A
C
20 ft-lb
27 N-m
Figure 43

Cleaning the Blower Housing

Every 100 hours/Yearly (whichever comes first)
To ensure proper cooling, ensure that the grass screen,
cooling fins, and other external surfaces of the engine are
kept clean at all times.
Annually, or every 100 hours of operation (more often
under extremely dusty, dirty conditions), remove the blower
housing, and any other cooling shrouds. Clean the cooling
fins and external surfaces as necessary. Make sure the cooling
shrouds are installed.
Important: Operating the engine with a blocked grass
screen, dirty or plugged cooling fins, and/or cooling
shrouds removed, will cause engine damage due to
overheating.
B
D
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Fuel System
Maintenance
DANGER
In certain conditions, gasoline is extremely
flammable and highly explosive. A fire or explosion
from gasoline can burn you and others and can
damage property.
• Perform any fuel related maintenance when the
engine is cold. Do this outdoors in an open area.
Wipe up any gasoline that spills.
• Never smoke when draining gasoline, and stay
away from an open flame or where a spark may
ignite the gasoline fumes.

Replacing the Fuel Filter

Service Interval: Every 100 hours/Yearly (whichever comes
first) (more often under dusty, dirty
conditions).
1. Disengage the blade-control switch (PTO), move the
motion-control levers to the N
and set 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. Replace the fuel filter as shown in
34
-L position,
EUTRAL OCK
Figure 44.