Cooling System Maintenance; Cleaning The Engine Screen And Engine-Oil Cooler; Cleaning The Engine Cooling Fins And Shrouds; Check And Clean The Hydraulic Unit Shrouds - Toro 74902TE Operator's Manual

Cooling System
Maintenance
Cleaning the Engine Screen
and Engine-Oil Cooler
Service Interval: Before each use or daily
Remove any build-up of grass, dirt or other debris from the
oil cooler (Figure 75).
Figure 75
Before each use remove any build-up of grass, dirt or
other debris from the engine screen. This will help insure
adequate cooling and correct engine speed and will reduce
the possibility of overheating and mechanical damage to the
engine (Figure 76).
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 76).
4. Clean the debris and grass from the engine parts.
5. Install air intake screen, recoil starter and fan housing
(Figure 76).
1. Engine guard
2. Engine air intake screen
3. Bolt
Check and Clean the Hydraulic
Unit Shrouds
Service Interval: Before each use or daily
Important: The fasteners on the covers of this machine
are designed to remain on the cover after removal.
Loosen all of the fasteners on each cover a few turns so
that the cover is loose but still attached, then go back
and loosen them until the cover comes free. This will
prevent you from accidentally stripping the bolts free
of the retainers.
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. Move the seat forward.
4. Allow the engine to and hydraulic system to cool.
5. Clean the debris and grass from the hydraulic unit
shrouds (Figure
49
Figure 76
4. Fan housing
5. Screw
77).