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 74978 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 70).
Figure 70
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.
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 cooling shrouds and fan housing.
4. Clean the debris and grass from the engine parts.
5. Install the cooling shrouds and fan housing.
Check and Clean the Hydraulic
Unit Shrouds
Service Interval: Before each use or daily
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. Raise the seat.
4. Clean the debris and grass from the hydraulic unit
shrouds (Figure 71).
5. Lower the seat.
G021395
1. Hydraulic unit shrouds
47
G021397
Figure 71