Cleaning The Cooling System - Toro Groundsmaster 4500-D Operator's Manual

Figure 111
1. Expansion tank
3. Check the coolant level in the radiator. The
radiator should be filled to the top of the filler
neck and the expansion tank filled to the F
mark (Figure 111).
4. If the coolant is low, add a 50/50 mixture of water
and ethylene glycol anti-freeze. Do not use
water only or alcohol/methanol based coolants.
5. Install the radiator cap and expansion-tank cap.
Cleaning the Cooling
System
Service Interval: Before each use or daily—Remove
debris from the engine area, oil
cooler, and radiator (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 oil cooler/radiator and screen
debris buildup. While this feature can help reduce
the time required to clean oil cooler/radiator, it does
not eliminate the need for routine cleaning. Periodic
cleaning and inspection of the radiator/cooler is still
required.
1. Park the machine on a level surface, engage the
parking brake, lower the mower decks, shut off
the engine, and remove the key.
2. Unlatch and swing open the rear screen
112).
Note:
To remove the screen, lift it off the hinge
pins.
3. Clean the screen thoroughly of all debris.
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1. Rear-screen latch
4. Thoroughly clean both sides of the oil cooler and
the radiator with compressed air
Note:
ULL
out toward the back. Then clean from the
back side and blow toward the front. Repeat
procedure several times until you remove all
chaff and debris.
1. Oil cooler/radiator
(Figure
Important:
with water promotes premature corrosion
71
Figure 112
Start from the front and blow the debris
Figure 113
Cleaning the oil cooler/radiator
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(Figure 113).
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