Cleaning The Cooling System - Toro 74268 Operator's Manual

Danger
Rotating shaft and fan can cause personal injury.
Do not operate the machine without the covers
in place.
Keep fingers, hands and clothing clear of
rotating fan and drive shaft.
Shut off the engine and remove the ignition key
before performing maintenance.
Caution
Swallowing engine coolant can cause poisoning.
Do not swallow engine coolant.
Keep out of reach from children and pets.
Checking the Radiator Coolant
Check the cooling system level daily.
Fluid Type: 50/50 mix of extended life
antifreeze/Dex–Cool and water
Cooling System Capacity: 128 ounces (3.8 l)
Note: Do not open the radiator cap. Doing this may
induce air into the cooling system.
1. Position the machine on a level surface, stop the
engine, and set the parking brake.
2. Unlatch the seat, tilt the seat up and tilt the engine
hood forward.
3. With the engine cool, check the overflow bottle level.
The fluid needs to be up to the bump on the outside of
the overflow bottle (Fig. 47).
4. If the coolant level is low, add a 50/50 mix of extended
life antifreeze/Dex–Cool and water to the overflow
bottle (Fig. 47).
5. Add the 50/50 coolant mix to the overflow bottle and
fill it to the indicator line on the bottle (Fig. 47).
1
2
m–7402
Figure 47
1. Antifreeze overflow bottle

Cleaning the Cooling System

Clean the cooling system daily before each use.
1. Position the machine on a level surface, stop the
engine, and set the parking brake.
Important
Before starting the engine, clean grass from
the pump drive belt compartment. Check more often in
dry conditions.
2. Unlatch the seat, tilt the seat up and raise the rubber
flap above the drive belt compartment.
3. Remove debris from the drive belt compartment and
hydraulic pumps.
4. Remove debris from the screen on the engine cover.
5. Tilt the engine cover forward.
6. Remove debris from the radiator core and engine
(Fig. 47).
Important
Do not damage the radiator cooling fins.
7. Inspect the seals on the engine cover and replace them
if needed.
8. Close the engine cover and tilt the seat back.
Changing the Engine Coolant
Change the engine coolant every 4 years or 4000 hours,
which ever occurs first.
Contact an Authorized Service Dealer for changing the
coolant.
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1
2. Indicator line on side of
overflow bottle