AUSA D 900 AP - Engine Cooling System; Changing the Coolant

D 900 AP / D 1000 AP / D 1000 APG
43
(fi g. 2)(fi g. 3) (fi g. 1)
4.- Engine cooling system
Consult the LIQUIDS AND LUBRICANTS section of this Manual for the
SPECIFICATIONS of the coolant liquid to be used.
WARNING!!
Never remove the reservoir cap if the engine is hot. Wait until the engine is cold. Wait for
approximately 20 minutes.
 Coolant liquid level (fig. 1)
Check the level in the expansion tank.
a. Reservoir
Remove the maintenance access cover located to the side of the operator’s seat.
With the vehicle on a level surface, the liquid must be between the MIN. and MAX. levels
marked on the reservoir.
NOTE: When checking the level at a temperature lower than 20°C (68°F), the level may
be below the MIN mark.
Add coolant up to MAX. mark if required. Never exceed the maximum level.
Use a funnel to avoid spills.
Replace and correctly tighten the filling cap and replace the maintenance access panel.
NOTE: A cooling system which requires coolant frequently indicates that there are leaks
or engine problems. See an authorised AUSA dealer.
 Changing the coolant (fig. 2, 3)
b. Cylinder block drainage cap.
c. Lower radiator hose.
This change should be carries out every 1000 hours or when the circuit is emptied for
repair. To do so the following operations are carried out:
- Loosen the cylinder block drainage cap, located on the left side of the engine, to
drain it.
- Disconnect the lower radiator hose in order to empty the radiator at this point.
- Before filling the circuit the engine drainage cap must be tightened and the hose
must be connected again.
- Filling is carried out using the upper radiator cap and the reservoir.
- Start the engine and wait until the thermostat is open.
- Then with the engine cold, check the level in the reservoir.
Check the intervals for replacing the filter in the LUBRICATION AND MAINTENANCE
CHART or replace when the circuit must be drained for repair.
Periodic
maintenance
operations
a
b
c