Cooling System Maintenance; Cooling System Safety; Checking The Cooling System - Toro Groundsmaster 5910 Operator's Manual

Cooling System
Maintenance

Cooling System Safety

CAUTION
Discharge of hot, pressurized coolant or touching a
hot radiator and surrounding parts can cause severe
burns.
• Do not remove the radiator cap when the engine
is hot. Always allow the engine to cool at least 15
minutes or until the radiator cap is cool enough
to touch without burning your hand before
removing the radiator cap.
• Do not touch the radiator and surrounding parts
that are hot.
DANGER
Swallowing engine coolant can cause poisoning.
• Do not swallow engine coolant.
• Keep out of reach from children and pets.

Checking the Cooling System

Service Interval: Before each use or daily—Check the
coolant level.
Check level of coolant at the beginning of each day. The
capacity of the system on a machine without a cab is 10.4 L
(13.5 qt) and with a cab is 17 L (18 qt).
Recommended Coolant
Note: Coolant must meet or exceed ASTM Standard 3306
Glycol based pre-diluted coolant (50/50 blend)
Glycol based coolant mixed with distilled water (50/50 blend)
Glycol based coolant mixed with good quality water (50/50
blend) as listed in the Cummins Manual
CaCO + MgCO
3
Chloride <40 ppm (CI)
Sulfer <100 ppm (SO
or
or
<170 ppm
3
)
4
DANGER
The rotating fans and drive belts can cause personal
injury.
• Do not operate the machine without the covers
in place.
• Keep fingers, hands, and clothing clear of the
rotating fan and drive belt.
• Shut off the engine and remove the ignition key
before performing maintenance.
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. Carefully remove the radiator cap and expansion tank
cap (Figure 77).
1. Expansion tank
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.
3. If the coolant is low, add recommended replacement
coolant, as required.
Note: Do not use water only or
alcohol/methanol-based coolants.
4. Install the radiator cap and expansion-tank cap.
52
Figure 77
2. Radiator cap