Cooling System Maintenance; Cooling System Safety; Checking The Cooling System; Cleaning The Radiator - Toro 31236 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
DANGER
The rotating fan and drive belt can cause personal
injury.
• 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 ignition key
before performing maintenance.
The cooling system is filled with a 50/50 solution of water
and permanent ethylene glycol anti freeze. Check the level of
the coolant in the expansion tank at the beginning of each day
before starting the engine. The capacity of the cooling system
is 7.5 L (6 US qt).
1. Check the level of the coolant in the expansion tank
(Figure 42). The coolant level should be between the
marks on the side of the tank.
2. If coolant level is low, remove the expansion tank cap
and replenish the system. Do not overfill.
3. Install the expansion-tank cap.
1. Expansion tank

Cleaning the Radiator

Service Interval: Before each use or daily Clean the radiator
more frequently in extremely dusty and
dirty conditions.
Keep the radiator clean to prevent the engine from
overheating.
Note: If the attachment or engine shuts off due to
overheating, first check the radiator for an excessive buildup
of debris.
1. Open the hood and secure the prop rod.
2. Loosen the flange nut securing the clean-out cover to
the underside of the rear frame
cover to the side to expose the clean-out hole in the
frame.
1. Clean-out cover
3. Working from the fan side of the radiator, blow out
debris with low-pressure (50 psi) compressed air (do
not use water). Repeat this step from the front of the
radiator, again from the fan side.
41
Figure 42
(Figure 43). Rotate the
Figure 43
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