Toro 74214 Operator's Manual page 33

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. 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. 38).
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 400 hours.
Danger
Discharge of hot pressurized coolant or touching
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 radiator and surrounding parts
that are hot.
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.
1. Position the machine on a level surface, stop the engine,
and set the parking brake.
2. Tilt the seat up and tilt the engine hood forward.
3. With the engine cool, drain the coolant by loosening the
drain cock in the right rear corner (Fig. 39).
4. The engine block must be drained by removing the
drain plug from the engine block (Fig. 40).
Note: The drain plug is black in color and is located near
the oil filter (Fig. 40).
5. Install all drain plugs, the radiator hose, and tighten the
drain cock.
1
1. Drain cock (right rear of radiator)
1
1. Coolant drain plug (black in color)
6. Drain the coolant from the overflow bottle.
7. Remove the radiator cap and add a 50/50 mixture of
permanent antifreeze and water until the radiator is
completely full.
8. Wait 2 minutes and check if the coolant stays up to the
full level. Add a 50/50 mixture of permanent antifreeze
and water until the radiator is completely full, if
required. Repeat until the coolant stays up to the full
level.
33
M–4379
Figure 39
m–5030
Figure 40