operators_manual

NOTE
Do not overfill a cooling system. Excess
coolant may result in overflow, loss of anti-
freeze, and reduced corrosion protection.
1. If your cooling system is built with
drain valves in the upper engine
coolant pipe, open them before
filling the surge tank.
2. Close any open coolant drains in
the system.
3. Remove the surge tank fill cap (do
not remove the surge tank pressure
cap).
4. Fill the system with premixed
coolant through the surge tank fill
cap. Pour coolant at a steady flow
rate until the surge tank is full (to the
base of the fill neck). It may be
necessary to pause for 1 minute
and then re-fill if the fluid level
dropped.
5. Close any drain valves that were
opened in Step 1.
6. Start the engine and idle at low rpm.
7. During low rpm idle, air will purge
from the cooling system which will
lower the coolant level in the surge
tank. Continue to fill the surge tank
until the coolant level remains
approximately ½ in. above the
"MIN" line. This may take up to 2
minutes, depending on the outside
temperature.
8. Operate the engine throttle until the
operating temperature stabilizes
(when the thermostat opens).
9. Fill the surge tank as necessary to
raise the coolant level to ½ in.
above the "MIN" level.
10. Operate the engine at high idle for
another 10 minutes and then fill the
surge tank again to ½" above the
"MIN" level.
11. Replace the surge tank fill cap.
Check the coolant level after each trip. Add
coolant as necessary. You may find your
coolant level is not up to the correct level
soon after you have filled the radiator. This
may be because all the trapped air in the
system has not yet been purged. It takes a
little time for all of the air to leave the
system after you fill your radiator.
Use a solution of half ethylene glycol
antifreeze and half water for best heater
performance. Do not use more than 65
percent concentration of antifreeze, as a
shortened heater life will result.
After servicing the cooling system, operate
the vehicle for a day or two before using
the heater. Trapped air inside the engine
needs time to escape.
Safety Restraint System -
Inspection
The seat belt system, including webbing,
buckles, latches, and mounting hardware,
endures heavy use in heavy-duty vehicles,
much more than seat belt systems in
passenger cars. All users should be aware
of the factors contributing to this heavy use
and reduced belt life.
WARNING!
Failure to properly inspect and maintain re-
straint systems can lead to injury or loss of
life. Without periodic inspection and mainte-
nance to detect unsafe conditions, seat re-
straint components can wear out or not pro-
tect you in an accident.
MAINTENANCE - Safety Restraint System - Inspection
Y53-6096-1A1 (01/17) 173
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