1. Engine speed If the rotational speed of the engine is not adjusted correctly, the detection of the other performance of the excavator is unreliable with the standard value. Therefore, the engine should be measured first in each way before other detection. The next speed is checked whether the engine speed is in line with the technical specifications.
2, prepare before the detection a. Put the DR.Ex diagnostic analyzer (if not, the engine speed meter can be used) to connect to the diagnostic connector next to the driver's rear fuse box (when using the engine speed meter, The speed reading device 2 is mounted on the jet tube 3 (Note: The limit stop 1 can never be re-adjusted). In addition, the rotational speed can also be measured by the photoelectric speedometer.
Diagnostic analyzer connection method
(1) Adjust the limit stop; the speed readout device; 3 injection tube B. Turn the machine until the engine coolant temperature reaches 50 degrees or more, the hydraulic oil temperature is (50 ± 5) degree.
3, no-load engine speed
A. Measure the start speed of the engine (starting slow car speed), low speed slow car speed, fast slow car speed (in normal way) and fast slow car speed (two in E mode and HP).
B. Select the switch position
C. Measure the start of the slow train speed.
D. When the engine control dial
E-mode switches and HP mode switching are measured when switching.
3 no-load automatic slow car speed
A. Select the switch position.
B. Start Method Click and Operate the bucket joystick.
C. Returning the bucket joystick to the empty block position, waiting to approximate 4s until the engine speed is automatically lowered, and then the reduced engine speed is measured.
