Cooling System Maintenance; Cooling System Safety; Checking The Cooling System; Cleaning The Cooling System - Toro Groundsmaster 4300-D Operator's Manual

Cooling System
Maintenance

Cooling System Safety

•
Swallowing engine coolant can cause poisoning;
keep out of reach from children and pets.
•
Discharge of hot, pressurized coolant or touching
a hot radiator and surrounding parts can cause
severe burns.
– Always allow the engine to cool at least 15
minutes before removing the radiator cap.
– Use a rag when opening the radiator cap, and
open the cap slowly to allow steam to escape.
•
Do not operate the machine without the covers
in place.
•
Keep your fingers, hands and clothing clear of
rotating fan and drive belt.
Checking the Cooling
System
Service Interval: Before each use or daily—Check
the level of coolant in the expansion
tank and clean debris off the screen,
oil cooler, and front of the radiator.
The cooling system is filled with a 50/50 solution of
water and permanent ethylene glycol antifreeze. The
capacity of the cooling system is 9.5 L (10 US qt).
DANGER
The rotating fans and drive belts can cause
personal injury.
• Do not operate the machine without the
guards in place.
• Keep your fingers, hands, and clothing
clear of the rotating fan and drive belt.
• Shut off the engine and remove the key
before performing maintenance.
1. Check the level of coolant in the expansion tank
(Figure 86).
Note:
The coolant level should be between the
marks on the side of the tank.
1. Expansion tank
2. If the coolant level is low, remove the
expansion-tank cap and replenish the system.
Do not overfill.
3. Install the expansion-tank cap.
Cleaning the Cooling
System
Service Interval: Before each use or daily—Remove
debris from the screen and
radiator/oil cooler (more frequently
in dirty operating conditions).
Every 100 hours—Inspect the cooling system
hoses.
Every 2 years—Flush and replace the cooling
system fluid.
Remove debris from the screen and radiator/oil cooler
daily (clean more frequently in dirty conditions).
1. Turn the key in the ignition switch to the O
position and remove the key.
2. Thoroughly clean all debris out of the engine
area.
3. Unlatch the clamp and pivot open the rear
screen (Figure
63
Figure 86
87).
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