MAINTENANCE
2-22
COOLING SYSTEM
COOLING SYSTEM OVERVIEW
The engine coolant level is controlled, or maintained, by the
recovery system. The recovery system components are the
recovery bottle, radiator filler neck, radiator pressure cap and
connecting hose.
As coolant-operating temperature increases, the expanding
(heated) excess coolant is forced out of the radiator past the
pressure cap and into the recovery bottle. As engine coolant
temperature decreases the contracting (cooled) coolant is
drawn back up from the tank past the pressure cap and into the
radiator.
NOTE: Some coolant level drop on new machines is
normal as the system is purging itself of trapped air.
Observe coolant levels often during the break-in
period.
NOTE: Overheating of engine could occur if air is
fully purged from system.
Coolant 50/50 is already premixed and ready to use. Do not
dilute with water.
COOLANT LEVEL INSPECTION
The pressure cap and recovery tank are located under the left
floor of the vehicle. The coolant level must be maintained
between the minimum and maximum levels indicated on the
recovery tank.
With the engine at operating temperature, the coolant level
should be between the upper and lower marks on the coolant
recovery bottle. If not, perform the following procedure.
1. Position the vehicle on a level surface.
2. Remove the rubber mat from the left floor.
3. View the coolant level in the recovery bottle.
4. If the coolant level is below the MIN line, inspect the
coolant level in the radiator.
NOTE: If overheating is evident, allow system to cool
completely and check coolant level in the radiator
and inspect for signs of trapped air in system.
Never remove the pressure cap when the engine is
warm or hot. Escaping steam can cause severe
burns. The engine must be cool
pressure cap.
5. Remove the inspection cover from the cab.
6. Remove the pressure cap. Using a funnel, add coolant to the
top of the filler neck.
7. Reinstall the pressure cap.