Cooling System Maintenance; Cleaning The Engine Screen And Engine Oil Cooler; Cleaning The Engine Cooling Fins And Shrouds - Toro 74906 Operator's Manual

F. Perform the following safety check:
i. Sit on the seat and start the engine.
ii. Make sure that the blades do not engage
with the PTO switched off and the clutch
disengaged.
If the clutch does not disengage, install the
shim and reference the Troubleshooting
section.
iii. Engage and disengage the PTO switch 10
consecutive times to ensure that the clutch
is functioning properly. If the clutch
does not engage properly, reference the
Troubleshooting section.
Cooling System
Maintenance
Cleaning the Engine Screen
and Engine Oil Cooler
Service Interval: Before each use or daily
Remove any buildup of grass, dirt, or other debris from the
oil cooler (Figure 76).
Before each use remove any buildup of grass, dirt, or
other debris from the engine screen. This will help ensure
adequate cooling and correct engine speed and will reduce
the possibility of overheating and mechanical damage to the
engine (Figure 77).
Cleaning the Engine Cooling
Fins and Shrouds
Service Interval: Every 100 hours/Yearly (whichever 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 77).
4. Clean the debris and grass from the engine parts.
5. Install air intake screen, recoil starter, and fan housing
(Figure 77).
47
Figure 76
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