MAINTENANCE AND SERVICING
Form 169552 / 169554 / 169555
139
Revision A
e. Remove the radiator cap, and open radiator
drain valve (B) on the engine side of the radiator
lower tank. Use a deflector or a hose to prevent
coolant running onto frame.
f. Close the heater shut-off valve (C), and
disconnect hose on heater side of valve.
g. Open valve to drain the block.
h. When system is drained, replace hose on valve
(C), and close radiator drain valve (B).
i. Fill system with clean water through the radiator,
and replace radiator cap.
j. Open heater shut-off valve (C).
k. Start engine, and turn TEMPERATURE
CONTROL knob to HIGH. Run engine until
normal operating temperature is reached.
l. Stop engine, and drain water out before rust or
sediment settles. See steps d. to h.
m. Close drain valves, and fill system with a
solution of clean water and a heavy duty radiator
cleaner. Follow instructions provided with
cleaner.
n. After using cleaner solution, again flush system
with clean water. Inspect radiator, hoses and
fittings for leaks.
o. Close drain valves and fill system through
radiator. Use Ethylene Glycol with SCA equal
parts with high quality, soft, de-ionized or
distilled water as recommended by the supplier.
System capacity is 6.6 U.S. Gallons (25 liters).
p. Close radiator cap tightly.
q. Remove cap (D) from recovery tank (E), and
add coolant until one-half full.
r. Move maintenance platform to “working
position”, and close engine compartment hood.
B
C
D
E