Gehl SL7600 Operator's Manual page 62

Cooling System
Important: Check the cooling system every day to prevent overheating, loss
of performance and engine damage.
Refer to the Maintenance Interval Chart (page 71) for other service intervals.
Check Coolant Level
1. Remove the left access panel (page 47). Check that the coolant recovery
tank is 1/3 to 1/2 full with a cold engine and 2/3 to 3/4 full with a hot
engine.
2. Allow the coolant to cool. Do not remove the cap when the coolant is hot.
Serious burns may occur.
3. Add premixed coolant, 50% water and 50% ethylene glycol, to the
recovery tank if the coolant level is low.
Clean Cooling System
1. Park the loader on a level surface, lower the lift arm and stop the engine.
Allow the machine to cool.
2. Open the rear door and engine cover (page 47).
3. Clean the radiator and oil cooler by blowing compressed air through the
fins.
Drain/Flush Cooling System
Note: Coolant must be drained from the radiator and the engine.
1. Open the rear door and engine cover. Remove the left access panel
(page 47).
2. Radiator - Open the drain valve located on the left side of the radiator and
drain the coolant into a suitable container.
Engine - Open the drain valve located underneath the engine oil filter.
The coolant will drain through a hose located behind the left rear tire.
Drain the coolant into a suitable container.
3. Close the drain valves.
Note: Protect the cooling system by adding premixed 50% water and 50%
ethylene glycol to the system. This mixture will protect the cooling system to
-34°F (-36°C).
4. Fill the radiator fully and the recovery tank half full with the premixed
coolant.
5. Reinstall the radiator cap.
6. Run the engine until it is at operating temperature. Stop the engine and let
it cool. Check the coolant level. Add more fluid if required.
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