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MAINTENANCE/SERVICE
Engine Cooling System
CHANGING COOLANT
Coolant should be
removed,
system flushed
and
new coolant added every
2
years.
Procedure:
A
CAUTION:
To avoid personal
injury
from
hot
coolant.
do
not tum
radiator
cap
untl engine cools.
Tum
the cap to
the
first
notch
to
relieve pressure
before
removing
cap
completely.
1.
With engine cool
and
approximately
level,
remove
radiator
cap.
NOTE:
A drain pan with
a
capacity
of 8
U.S.
gallons
(30 litres)
will be adequate.
2.
Remove
drain
plug from engine
block.
(A)
-
Gas Engine (both sides)
(B)
-
Diesel Engine
3.
Open radiator
drain
valve
(C).
4.
When system is drained,
replace drain plug in
block and close
radiator
drain
valve.
5.
Fill
system
with clean water
and replace
radiator
cap.
6.
Turn heater switch in cab
ON
and leave it
on
until flushing is complete.
7.
Start
and
run
engine
until normal operating
temperature is
reached.
8.
Stop engine and
drain
water
out before rust
or sediment settles.
9.
Close drain valves and fill
system
with
a
solution of clean water and a heavy duty
radiator cleaner. Follow
instructions
provided
with cleaner.
10.
After
using
cleaner
solution,
again
flush
system with clean
water.
Inspect radiator,
hoses and fittings for
leaks.
11
.
Close drain valves and fill system with a 50
/50
mix of anti-freeze and clean, soft
water.
SYSTEM CAPACITY
-
Gas Engine: 5.3 U.S. gallons
(20
litres)
Diesel Engine: 4.8 U.S. gallons {18 litres)
Anti-freeze must meet SAE spec J1034.
BLOCK DRAIN
-
GAS ENGINE
BLOCK DRAIN
-
DIESEL ENGINE
RADIATOR DRAIN
76
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