Detroit Diesel MBE 4000 Service Manual page 558

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SCHEDULED INTERVALS

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[a] Place a receptacle underneath the coolant drain plug. Choose one that is large enough

to hold the expected quantity of coolant.

Make sure the coolant can flow unobstructed into the receptacle.

[b] Open the coolant drain plug on the bottom of the radiator.

When flushing the radiator, do not apply more than 20 psi (140

kPa) air pressure. Excessive pressure can damage the radiator

or heater core.

4. Flush the radiator.

[a] Attach a flushing gun nozzle to the radiator outlet.

[b] Run water in until the radiator is full.

[c] Apply no more than 20 psi (140 kPa) air pressure intermittently to help dislodge

sediment buildup in the core.

5. Drain the radiator, and flush the radiator until clean water flows from the radiator.

Remove the flushing gun.

6. When the coolant has drained, install the coolant drain plug on the radiator.

7. Add coolant in the specified concentration until the maximum mark on the surge tank is

reached. The coolant system capacity is listed in Table 13-10.

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All information subject to change without notice.

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