Cooling System Maintenance; Cleaning The Air Intake Screen; Cleaning The Cooling System - Toro 74448 Operator's Manual

Cooling System
Maintenance

Cleaning the Air Intake Screen

Service Interval: Before each use or daily—Clean the
engine air intake screen from grass
and debris.
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/Yearly (whichever
comes first)—Check and clean engine
cooling fins and shrouds.
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 42).
4. Clean the debris and grass from the engine parts.
5. Install air intake screen, recoil starter and fan housing
(Figure 42).
1. Guard
2. Air intake screen
3. Bolt
35
Figure 42
4. Fan housing
5. Bolt