Cleaning The Blower Housing; Fuel System Maintenance; Replacing The In-Line Fuel Filter - Toro 74670 Operator's Manual

Cleaning the Blower Housing

To ensure proper cooling, make sure 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 after finishing the maintenance. Torque the
blower-housing screws to 7.5 N-m (5.5 ft-lb).
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.
Fuel System
Maintenance
Replacing the In-line Fuel
Filter
Service Interval: Every 100 hours—Replace the in-line fuel
filter.
Never install a dirty filter if it is removed from the fuel line.
1. Park the machine on a level surface and disengage the
blade-control switch.
2. Set the parking brake, stop the engine, remove the key,
and wait for all moving parts to stop before leaving the
operating position.
A
B
C
D
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Figure 36