Cooling System Maintenance; Cooling System Safety; Checking The Cooling System; Cleaning The Cooling System - Toro Groundsmaster 4500-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
Coolant specification: 50/50 mixture of water and
ethylene glycol antifreeze
Cooling system capacity: 8.5 L (9 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. Park the machine on a level surface, engage the
parking brake, lower the cutting units, shut off
the engine, and remove the key.
2. Carefully remove the radiator cap.
1. Expansion tank
3. Check the coolant level in the radiator. The
radiator should be filled to the top of the filler
neck and the expansion tank filled to the F
mark (Figure 116).
4. If the coolant is low, add a 50/50 mixture of water
and ethylene glycol anti-freeze. Do not use
water only or alcohol/methanol based coolants.
5. Install the radiator cap and expansion-tank cap.
Cleaning the Cooling
System
Service Interval: Before each use or daily—Remove
debris from the engine area, oil
cooler, and radiator (clean them
more frequently in dirty conditions).
This machine is equipped with a hydraulically driven
fan drive system that automatically (or manually)
reverses to reduce oil cooler/radiator and screen
debris buildup. While this feature can help reduce
the time required to clean oil cooler/radiator, it does
not eliminate the need for routine cleaning. Periodic
cleaning and inspection of the radiator/cooler is still
required.
1. Park the machine on a level surface, engage the
parking brake, lower the cutting units, shut off
the engine, and remove the key.
2. Allow the machine to cool down; refer to
Maintenance Safety (page 58)
System Safety (page
78
Figure 116
and Cooling
78).
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