Peterbilt 325 2017, Руководство оператора

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COOLING SYSTEM
Refilling Your Radiator
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 refill 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.
(03/17) Y53-6060-1C1
5-83
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