SHIM 4645101 - Caterpillar

Engaging the Driven Equipment
Avoid detonation during loading. Generally, no load operation to full load operation can be accomplished in one to five minutes without any problems.DO NOT apply a load to the engine or increase the rpm until the engine oil pressure is a minimum of 160 kPa (23 psi) at low idle rpm.
Increase the engine rpm. The minimum rpm for operating an engine with a load is 750 rpm. The maximum rpm for operating an engine with a load is 1000 rpm.
For engines with a "SPEED CONTROL" potentiometer or a remote speed control, turn the control to the engine rpm that is desired.
For engines with an "IDLE/RATED" switch, toggle the switch to the "RATED" position. Ensure that the gauges are in the normal ranges for the engine rpm.Note: It may be necessary to apply some load in order to attain normal operating temperatures.
After verifying that the engine systems are normal, engage the driven equipment. Apply the load according to the requirements for temperatures:Before you apply a load up to 49 percent of the rated load, the minimum temperature of the jacket water is 38 °C (100 °F). The minimum engine oil temperature is 10 °C (50 °F).Before you apply a load between 50 and 100 percent of the rated load, the minimum temperature of the jacket water is 50 °C (122 °F). The minimum engine oil temperature is 50 °C (122 °F).Continue to check the gauges and the driven equipment.For information on partial load operation, refer to this Operation and Maintenance Manual, "Engine Operation" topic (Operation Section).
Adjust the load, as needed.