Cooling System Maintenance; Cooling System Safety; Checking The Cooling System; Servicing The Engine-Cooling System - Toro Groundsmaster 4100 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.
•
Shut off the engine and remove the key before
performing maintenance.
Checking the Cooling
System
Service Interval: Before each use or daily
Check the coolant level at the beginning of each day.
The capacity of the system is 8.5 L (9 US qt).
1. Carefully remove the radiator cap and
expansion-tank cap
2. Check the coolant level in the radiator.
Note:
The radiator should be filled to the top
of the filler neck and the expansion tank filled
to the Full mark.
Figure 110
1. Expansion tank
3. If the coolant is low, add a 50/50 mixture of water
and ethylene glycol anti-freeze.
(Figure 110).
Important:
alcohol/methanol base coolants, as this may
cause damage.
4. Install the radiator cap and expansion-tank cap.
Servicing the
Engine-Cooling System
Service Interval: Every 100 hours
Every 2 years
Remove debris from the oil radiator/oil cooler
daily. 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 the radiator/oil cooler and screen
debris buildup. While this feature can help reduce
the time required to clean radiator/oil cooler, it does
not eliminate the need for routine cleaning. Periodic
cleaning and inspection of the radiator/oil cooler is
still required.
1. Shut off the engine, remove the key, and raise
the hood.
2. Clean the engine area thoroughly of all debris.
3. Clean both sides of the radiator/oil cooler area
thoroughly with compressed air
Note:
Start from the fan side and blow the
debris out toward the back. Then, clean from
the back side and blow toward the front. Repeat
this procedure several times until all chaff and
debris is removed.
Important:
with water can promote premature corrosion
and damage to components.
g020441
73
Do not use water only or
(Figure
Cleaning the radiator/oil cooler
111).