New Holland Workmaster 25S, Operator'S Manual

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7 - MAINTENANCE
Every 1000 hours
Engine valve clearance - Check and adjust
Contact your NEW HOLLAND dealer to schedule this
service for your tractor.
Every two years
Engine cooling system - Drain fluid - And flush
To drain the cooling system:
1. Use a suitable receptacle to catch the used coolant.
2. Remove the radiator cap and open the drain valve (1)
on the right-hand side of radiator to drain the coolant.
3. After the coolant has drained, place a water hose in the
radiator filler neck and run water through the system.
4. When water is flowing from the radiator drain valve,
start the engine.
5. When the water flowing from drain valve is free from
coloration and sediment, stop the engine and remove
the hose.
Allow all water to drain from the system
through the radiator drain valve.
NHIL17CT01284AA
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6. Remove the engine block drain plug (2) on the left-hand
side of the tractor. Allow the engine block to drain.
7. Install the engine block drain plug.
8. Close the radiator drain valve.
9. Slowly refill the system with a 50/50 solution IAT
C
OOLANT
11 – C
LASSIC
and water through the radiator
filler neck. Fill until the coolant level is approximately
even with the bottom of the filler neck.
10. Clean the radiator cap and reinstall the cap.
11. Run the engine until normal operating temperature is
reached, then stop the engine.
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12. Recheck the coolant level when the cooling system is
cold and add additional coolant as necessary.
13. Verify the coolant over-flow tank (3) has the proper
level.
NHIL17CT01301AA
3
NOTE: See page 7-2 for information on changing engine coolant types.
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