ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 014-003   Engine Run-in (Chassis Dynamometer)

CAUTION  Prior to operating the engine and to reduce the possibility of internal component damage. Refer to Procedure 014-002 in Section 14.

NOTE: For general operating procedures and safety precautions. Refer to Procedure 014-005 in Section 14.

NOTE: Operate the vehicle in a gear that produces a road speed of 90 to 95 kph [55 to 60 mph].

Operate the engine at 1200 rpm and 25 percent of torque peak load until the water temperature reaches 70°C [160°F].

Operate the engine at 1200 rpm and 40 percent of torque peak load for 2 minutes. Check the gauges and record the readings.

Operate the engine at 1600 rpm and 65 percent of torque peak load for 5 minutes. Check the gauges and record the readings.

Operate the engine at torque peak rpm and full load for 4 minutes. Check the gauges and record the readings.

NOTE: See the engine data sheet for the torque peak rpm of the engine model being tested.

Operate the engine at 1600 rpm and 65 percent of torque full load for 5 minutes. Check the gauges and record the readings. Compare the readings to those published in the appropriate engine data sheet.

Operate the engine at torque peak rpm and full load for 4 minutes. Check the gauges and record the readings.

NOTE: See the engine data sheet for the torque peak rpm of the engine model being tested.

CAUTION  Do not shut off the engine immediately after the run-in is complete. Allow the engine to cool by operating it at low idle for a minimum of 3 minutes to avoid internal component damage.

Operate the engine at rated speed (rpm) and full load for 4 minutes. Check the gauges and record the readings. Compare the readings to those published in the appropriate engine data sheet.

Make sure to remove all dynamometer instrumentation from the vehicle.