Checking The Cooling System; Cleaning The Radiator And Screen; Draining The Cooling System - Ventrac 4500K Operator's Manual

Checking The Cooling System

1. Park the power unit on a level surface.
2. Engage the parking brake and shut off the engine.
3. Remove the key from the ignition switch and
allow the engine to cool.
4. Open the engine hood to access the engine
compartment.
5. Check the coolant level in the coolant recovery
tank (A). When cold, the coolant recovery tank
should be approximately half full of coolant.
B B
6. If the coolant level is low, add coolant to the tank
and reinstall the cap.
7. If the coolant recovery tank is empty, slowly
open the radiator cap (B) to the fi rst stop to allow
any pressure to release. Press down on the cap
slightly and continue to turn counterclockwise to
remove the cap from the radiator.
8. Check to ensure the coolant level is up to the
bottom of the fi ller neck.
9. If the coolant level is low, add coolant to the radi-
ator until it reaches the bottom of the fi ller neck.
10. Install the radiator cap.
11. Inspect the radiator hoses and clamps for leaks
and deterioration. Replace as necessary.
12. Close the engine hood.
SERVICE

Cleaning The Radiator And Screen

1. Park the power unit on a level surface.
2. Engage the parking brake and shut off the engine.
3. Remove the key from the ignition switch and
allow the engine to cool.
4. Open the engine hood to access the engine
compartment.
5. Remove the radiator
screen (A).
6. Remove debris from
the radiator screen
using a brush, com-
pressed air, or water.
A A
7. When required, clean
debris from the radiator
using low pressure com-
pressed air or water.
8. Check radiator fi ns for
damage.
9. Install the radiator screen.
10. Close the engine hood.

Draining The Cooling System

Coolant is poisonous to humans and animals and
is hazardous to the environment. Drain coolant into
an approved container. Dispose of used coolant in
accordance with local laws.
1. Park the power unit on a level surface.
2. Engage the parking brake and shut off the engine.
3. Remove the key from the ignition switch and
allow the engine to cool.
4. Open the engine hood to access the engine
compartment.
5. Slowly open the radiator cap to the fi rst stop to
allow pressure to release.
6. Place a drain pan or jug under the right side of
the front frame.
7. Install a 7/16" (11
mm) ID hose (A)
onto the radiator
drain port (B) and
route down to the
drain pan.
8. Turn the drain valve
counterclockwise
to open and drain
the coolant into the
drain pan.
Service - 46
A A
CAUTION
B B
A A