Detroit Diesel 4000 Series, Руководство по обслуживанию, Страница: 137 / 2706

SERIES 4000 12/16V SERVICE MANUAL
Engine Run-in
If pistons, piston rings or cylinder liners have been replaced, the engine must be run in as per the
appropriate run-in schedule.
Conscientious run-in is of critical importance as this regards the durability and operational
reliability of the engine.
Use a brake or alternator to absorb the power generated in the braking run.
Power must be transmitted from the engine to the brake by means of a resilient coupling.
Settings
Set fuel and intake air temperatures before engine operation in accordance with the temperatures
stated for the engine in the DDC Engine Acceptance Test Record.
The engine coolant temperature depends on the operating range of the coolant thermostat.
Fuel temperature depends on the volume of the service tank insofar as there is no fuel-cooling
device on the test stand.
Record readings for power fuel, lube oil, coolant, charge air and exhaust gas at each test point
(time, speed and effective power) of the run-in schedule and enter readings under “Engine Run-In”
in “DDC Diesel Engine Factory Test” record.
Listed in Table 4 for the operations to be performed for the engine run-in.
Operations to be Performed Refer to Section
Install engine on test stand -
Connect engine to brake or alternator -
Connect air intake, exhaust, engine coolant and fuel lines -
Connect measuring sensor and measuring lines to the corresponding measuring
points to record the measured values for fuel, lube oil, engine coolant, supercharging
and exhaust which were noted in the DDC Engine Acceptance Test Record.
DDC Engine Acceptance
Test Record
Connect control unit to ECM -
Fill expansion tank with coolant and 2 % corrosion inhibitor oil up to max. mark Operators Guide
Vent coolant lines until bubble-free coolant emerges Operators Guide
Check that fuel in service or supply tank is to specification
DDC Fluid and Lubricants
Specification
Fill oil system up to max mark with fresh oil Operators Guide
Prelubricate valve gear with oil Operators Guide
Check operation of emergency shutdown system -
Preheat engine coolant Operators Guide
Start engine Operators Guide
Shut down engine after approximately one minute no-load operation
and carry out following operations:
-
All information subject to change without notice.
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