MACHINE OPERATIONS AND CONTROLS OPERATION 4. Carry out bucket and arm operation for 5 minutes at full stroke, alternating between bucket operation and arm operation at 30 second intervals. If the swing lock switch (5) is set to the ON (actuated) position and swing control lever (4) is operated at full stroke, oil temperaturerise can be increased earlier. 5. After carrying out the warming-up operation, check that each gauge and monitor lamp is in the following condi- tion. Engine water temperature gauge (6) . Inside green range Fuel gauge (7) . Inside green range Engine oil pressure monitor (8) . OUT Charge level monitor (9) . OUT Automatic greasing monitor (10) . OUT 6.
Check that there is no abnormal exhaust gas color, noise, or vibration. If any abnormality is found, repair it. 7. Set lock lever (2) to the LOCK position and check that it is impossible to operate the swing and work equipment with the left and right work equipment control levers. 3-52