OPERATION MACHINE OPERATIONS AND CONTROLS WARMING-UP OPERATION NOTICE G When the hydraulic oil is at a low temperature, do not carry out operations or move the levers suddenly. Always carry out the warming-up operation. This will help to extend the machine life. G Do not suddenly accelerate the engine before the warming-up operation is completed. Do not run the engine at low idling or high idling con- tinuously for more than 20 minutes. This will cause leakage of oil from the turbocharger oil supply piping. If it is necessary to run the engine at idling, apply a load from time to time or run the engine at a mid-range speed. After starting the engine, do not immediately start operations.
First, carry out the following operations and checks. 1. Turn fuel control dial (1) to the center position between LOW IDLING and HIGH IDLING and run the engine at medium speed for about 5 minutes with no load. 2. Set safety lock lever (2) to the FREE position, and raise the bucket from the ground. 3. Operate bucket control lever (3) and arm control lever (4) slowly to move the bucket cylinder and arm cylinder to the end of the stroke. NOTICE When the work equipment is retracted, take care that it does not interfere with the machine body or ground. 4.
Carry out bucket and arm operation for 5 minutes at full stroke, alternating between bucket operation and arm operation at 30 second intervals. 3-59