Maintenance/2500 hours/3 years
DPSG,CD03523,41 –19–13JUL99–1/3
DRAIN AND FLUSH COOLING SYSTEM
TS281 –UN–23AUG88RG4894 –UN–14DEC88
ZX016192 –UN–11JAN99
CD30765 –UN–27AUG99
NOTE: Drain and flush cooling system every
2500 hours/3 years when John Deere
COOL-GARD coolant is used. Otherwise every
2000 hours/2 years.
CAUTION: Explosive release of fluids from
pressurized cooling system can cause serious
burns.
Shut off engine. Only remove filler cap when
cool enough to touch with bare hands. Slowly
loosen cap to first stop to relieve pressure
before removing completely.
1. Slowly open the radiator cap.
2. Remove engine block drain plug (A).
3. On POWERTech engines, remove oil cooler housing
drain plug (B).
4. Open radiator drain valve (C). Drain all coolant from
radiator.
5. Close all drain orifices after coolant has drained.
6. Fill the cooling system with clean water. Run engine
until water passes through the thermostat to stir up
possible rust or sediment.
7. Stop engine and immediately drain the water from
system before rust and sediment settle.
8. After draining water, close all drain orifices and fill the
cooling system with clean water and TY15979 John
Deere Heavy Duty Cooling System Cleaner or
equivalent cleaner. Follow manufacturer’s directions on
label.
9. After cleaning the cooling system, drain cleaner and fill
with water to flush the system. Run engine until water
passes through the thermostat, then drain out flushing
water.
45-1
112699
PN=61
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