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

Figure 77
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 77).
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
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 cutting units, shut off
the engine, and remove the key.
g009702
2. Allow the machine to cool down; refer to
Maintenance Safety (page 43)
System Safety (page
3. Unlatch and swing open the rear screen
78).
Note:
To remove the screen, lift it off the hinge
ULL
pins.
4. Clean the screen thoroughly of all debris.
1. Rear-screen latch
5. Thoroughly clean both sides of the oil cooler and
the radiator with compressed air
Note:
Start from the front and blow the debris
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.
62
debris from the engine area, oil
cooler, and radiator (clean them
more frequently in dirty conditions).
and
61).
Figure 78
(Figure
Cooling
(Figure
g198662
79).