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e. Place a drain pan (about 8 U.S. gallons (30
litres)) under the engine and radiator.
C
f.
Remove the radiator cap and open radiator drain
valve (D) on the engine side of the radiator lower
tank. Use a deflector or a hose to prevent
coolant running onto frame.
g. Loosen drain plug (E) in engine block so that
coolant drains.
It is located on the left cab-
forward side of the block at the rear of the
engine.
Form 169017
MAINTENANCE/SERVICE – M150 ENGINE
D
F
E
137
h. When system is drained, replace drain plug in
block (E) and close radiator drain valve (D).
i.
Fill system with clean water through the radiator
and replace radiator cap.
j.
Open heater shut-off valve (F).
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 g.
m. Close drain valves and fill system with a solution
of clean water and a heavy duty radiator
cleaner.
Follow
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 with an equal part mix of anti-freeze and
clean, soft water.
Propylene-Glycol With SCA equal parts with
water. System capacity is 5.3 U.S. Gallons (20
litres).
p. Close radiator cap tightly.
B
q. Remove cap (B) from recovery tank (A) and add
coolant until half full.
r.
Move maintenance platform to working position
and close engine compartment hood.
instructions
provided
Use Ethylene Glycol Or
A
Issue – June 2008
with
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