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.
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).
1. Carefully remove the radiator cap.
CAUTION
If the engine has been running, the
pressurized, hot coolant can escape and
cause burns.
• Do not open the radiator cap when the
engine is running.
• Use a rag when opening the radiator
cap, and open the cap slowly to allow
steam to escape.
1. Expansion tank
2. 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 90).
3. 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 base coolants.
4. 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. Unlatch and swing open the rear screen
91).
Note:
To remove the screen, lift it off the hinge
pins.
2. Clean the screen thoroughly of all debris.
67
Figure 90
g009702
ULL
(Figure