Thermo King SGCO 3000, Руководство пользователя

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Engine Maintenance
94
7. Prepare 8 liters (2 gallons) of 50/50 percent
antifreeze/water mixture. Do not add
antifreeze and then water to the unit. This
procedure may not give a true 50/50 mixture
because the exact cooling system capacity
may not be known.
NOTE: Thermo King recommends the use of
50/50 percent pre-mixed ELC antifreeze to
assure that de-ionized water is used. 100
percent concentrate extended life coolant
must be mixed with de-ionized or distilled
water (NOT tap water) to ensure cooling
system integrity.
8. Close all drains. On recently built units, also
open vent fitting on top of the inlet header on
the radiator. Refill the radiator with the 50/50
antifreeze mixture. Make sure all air is bled
from the cooling system.
NOTE: Make certain all air is purged from the
cooling system, especially on centermount and
sidemount units. Recently built units include a
special vent fitting on the top of the inlet header
on the radiator. Open this fitting to bleed air
from the cooling system when refilling the
radiator with coolant.
Bleeding Air from the Cooling
System
A jiggle pin thermostat prevents air from being
trapped in the engine block. This should make it
unnecessary to bleed the air out of the engine.
Normally approximately 8.5 liters (9 quarts) of
coolant will drain from the cooling system. If only
4 liters (4 quarts) of coolant fill the cooling
system after it has been drained, air has been
trapped in the block. Bleed the air out of the block
using the following procedure:
NOTE: If an engine operates with air trapped in
the block, engine damage could occur. The high
water temperature switch may not protect an
engine that has air trapped in the block.
1. Remove the plug from the front end of the
water pump before pouring coolant into the
cooling system. Recently built units also
include a special vent fitting on the top of the
inlet header on the radiator. Also open this
fitting to bleed air from the radiator.
2. Slowly pour coolant into the system until
coolant comes out of the plug fitting.
3. Reinstall the plug on the water pump.
4. Pour coolant into the system until it appears to
be full.
5. Make sure that the amount of coolant that
goes back into the system is approximately
equal to the amount of coolant that was
drained from the system.
6. Start the engine. Monitor the engine coolant
temperature with the controller. When the
temperature reaches 66 C (150 F), shut the
engine off for 2 minutes. This allows time for
the thermostat to heat soak and open fully,
ensuring that any remaining air will be purged
out of the engine block when the engine is
restarted.
7. Restart the engine and run it for a minute.
Then stop the unit.
8. Check the coolant level and add coolant if
necessary.
9. Repeat steps 7 and 8 until the coolant level
stabilizes.
10. Close the vent fitting on the top of the inlet
header on the radiator (recently built units
only).
CAUTION: If you suspect that air is
trapped in block, do not start the engine
without bleeding the air out of the block.
1. Plug
Figure 55: Remove Plug from Water Pump
1