At the same time, the output pressure of the Komatsu excavator LS valve (servo piston inlet pressure) and the pump output pressure were measured and compared.
① Open the side cover of the pump room, as shown in Figure 2-57, remove the hydraulic check plug
②As shown in Figure 2-58, install the threaded socket and the threaded socket of the hydraulic detector, and connect them to the hydraulic pressure gauge.
Use the joint and elbow and threaded socket of the hydraulic detector M to connect the measuring part of the screw plug so that the inspection plug is not disturbed by the discharge pipe.
③ Start the engine and push the track pad on the side to be measured with the working device to prepare for the idle running of the track pad.
Push the right track shoe when measuring the front oil path. Push the left track shoe when measuring the rear oil path.
Because the lifted track shoe will run at idle speed during measurement, make sure there is enough work area ④ Set the work mode to strong mode P and set the walking speed to the high speed
⑤ Run the engine at high idle speed, put all the joysticks and pedals of the working device, slewing and walking in the neutral position and measure the oil pressure at each speed. Then, operate the walking joystick to make the track shoe run at idle speed and measure the oil pressure.
Note: Only after the safety around the machine has been checked very carefully, can the raised track be operated at idle speed.
Do not operate the walking joystick to the end of the stroke (stop it at half-way).
