New Holland TD 60D Operator's Manual page 151

FLUSHING THE SYSTEM (MODELS
WITHOUT CABS)
Flush at least every 1200 service hours or every
2 years, and whenever changing the anti--freeze in
the system.
Proceed as follows:
-- Remove the expansion tank cap (1) fig. 61.
Remove the radiator plug (1) fig. 62 and drain the
water while the engine is hot;
CAUTION
The engine must be switched off when draining the
water.
-- Once the engine has cooled, fill the radiator with
a filtered solution of Solvay soda and water at a
ratio of 250 grams (8.8 oz.) of soda to 10 litres
(2.20 Imp gal. -- 2.70 US gal.) of water;
-- Run the tractor for approximately one hour and
then drain the flushing solution;
-- Wait for the engine to cool down, then circulate
pure water by pouring it into the radiator and
allowing it to drain from radiator drain plug (1)
fig. 62.
-- Replace the radiator plug, fill with water, run the
engine for a few minutes and drain the system;
-- Leave the engine to cool and top up to the normal
level.
THERMOSTAT
There is a thermostat in the cooling circuit to prevent
the water circulating in the radiator until the water
reaches a high enough temperature to allow the engine
to operate correctly (approximately 85_C).
If you think the thermostat may not be working
properly, remove it and have it checked by your
dealer.
SECTION 4 - - LUBRICATION AND MAINTENANCE
FLUSHING THE HEATING SYSTEM
(MODELS WITH CAB)
The heating system uses fluid from the engine
cooling system drawn off between the engine and the
radiator.
Flush the cooling system as described for models
without cab, bearing in mind that the heating system
can be completely drained by turning temperature
adjustment control (1) fig. 64 to the vertical position
A.
Fill the engine cooling system and cab heating
system as follows:
-- fill the radiator with a mixture of AMBRA AGRIFLU
and water and fit the radiator filler cap;
-- Turn heating control (1) to red, (horizontal position
B), start the engine and run it for approx. 5 to 10
minutes. (This operation is necessary to warm the
coolant in the engine cooling system);
-- Remove the upper radiator cap, turn the heating
control (1) to a vertical position and run the engine
at maximum power for around five minutes;
-- Fill the radiator with the engine running at high
speeds until it is completely full, and fit the cap.
TRE0011B
A
B
1
TRE0024A
63
64
4--29