Cooling System Maintenance; Cleaning The Air Intake Screen; Cleaning The Cooling System - Toro 74410 Operator's Manual

Figure 45
1. Spring Washers
2. Lock Nut
3. Dust Cap
Cooling System
Maintenance

Cleaning the Air Intake Screen

Service Interval: Before each use or daily
Before each use remove any build-up of grass, dirt
or other debris from the cylinder and cylinder head
cooling fins, air intake screen on flywheel end, and
carburetor-governor levers and linkage. This will help
insure adequate cooling and correct engine speed and
will reduce the possibility of overheating and mechanical
damage to the engine.

Cleaning the Cooling System

Service Interval: Every 100 hours
Clean the air intake screen from grass and debris before
each use.
Check and clean cooling fins and engine shrouds every
100 hours or yearly, which ever comes first.
1. Disengage the PTO and set the parking brake.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Remove the air intake screen, recoil starter and fan
housing (Figure 46).
4. Clean the debris and grass from the engine parts.
5. Install air intake screen, recoil starter and fan housing
(Figure 46).
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