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Service—2 Years/2000 Hours
PY80265,05I0235 –19–12SEP05–1/2
Flush Cooling System
PY4157 –UN–28AUG04PY4158 –UN–28AUG04PY5103 –UN–15JUN05PY4159 –UN–28AUG04
A—Radiator Cap
B—Drain Valve
C—Coolant Drain Plug
D—Thermostat Cover
For efficient operation, drain old coolant, flush the entire
system, and fill with clean antifreeze solution at least once
every two years.
CAUTION: DO NOT remove radiator cap or drain
coolant until coolant is cold (temperature gauge
should be below the green striped zone).
Always loosen radiator cap slowly to relieve
any excess pressure.
1. Drain coolant - Remove radiator cap (A). Open drain
valve (B) on radiator and drain coolant from radiator.
Drain coolant from engine block:
IMPORTANT: Thermostat must be removed to ensure
a thorough flush.
2. Remove thermostat cover (D), remove thermostat, and
install cover (without thermostat). Tighten cap screws
to specification.
Specification
Thermostat Cover Cap Screws—
Torque 47 N•.m (35 lb-ft)............................................................................
3. Flush system with water - Close all drain valves/plugs
and fill system with clean water. Run engine about 10
minutes to stir up possible rust or sediment. Stop
engine and drain water from system before rust and
sediment settle.
4. Flush system with radiator cleaner - Close all drain
valve/plugs and fill the cooling system with a good
commercial radiator cleaner and water. Follow
instructions provided with cleaner. Stop engine and
immediately drain system.
5. Flush system with water - Close all drain valves/plugs
and fill with clean water to flush the system. Run the
engine about 10 minutes, then drain out flushing water.
130-1
082206
PN=115
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