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  1. T

    SK135SR-1ES Low Travel Power

    When climbing a slope, the machine lacks power and becomes very slow. Swing motion becomes noticeably weak when the boom and arm are fully extended. Overall, the machine feels underpowered in general operation. The pump delivery pressure (No.14), as shown on the monitor, does not exceed...
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    KOBELCO SK135SR-1 Travel Low Pilot Pressure

    The travel power is weak, and when I checked the pilot pressure using the service menu, I noticed it was low: 3.5V and 23K. Other pressures are at 4.8V and 30K. I tried tightening PR1 by half a turn, but there was no change. Could someone advise me on the adjustment procedure?"
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    SK135SR-1 Arm Swing Problem

    The PTO pump is equipped but used for dozer blades. I am thinking of adjusting the pump regulator to increase the minimum flow rate. What do you think of this plan?
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    SK135SR-1 Arm Swing Problem

    I sent it while I was in the middle of creating it. Sorry. I thought that when the pilot signal from the option valve (breaker line) arrives, the timing of the P2 output rises and falls would be jerky, so I added an off-delay timer that allows the pilot pressure to be applied to the option...
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    SK135SR-1 Arm Swing Problem

    A delay function has been added to hold the breaker valve pilot signal for 5 seconds after the front ATT operation using the smart relay function. The impact of the abrupt movement is eliminated, but the arm and swing movements are slowed down for 5 seconds. However, when the front ATT is...
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    SK135SR-1 Arm Swing Problem

    The rotator is moving at the required speed. However, the delay in the Excavator was not resolved. I will check again with the P2 CUT SOLENOID coupler disconnected.
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    SK135SR-1 Arm Swing Problem

    One progress has been made. During attachment operation, when turning or arming out, the attachment would accelerate. The result was that the attachment pilot pressure was low. We do not know why it was low. Before adjustment 2.1V 12k After adjustment 4.8V 30k I tried to replace the smart...
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    SK135SR-1 Arm Swing Problem

    It's hard to see in the sunlight, but here's a video https://drive.google.com/file/d/1LFS7CofCntcAGvNpzRYuU2JbMzHejsPw/view?usp=drive_link https://drive.google.com/file/d/15ODjiQtLLLQO-GLsbTFzZ1fw8MNO-kLQ/view?usp=drive_link...
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    SK135SR-1 Arm Swing Problem

    Mr KOBE STEEL I tried to remove the smart relay but the wiring is very complicated and it will take some time. Please wait a moment. I am thinking of replacing it with a simple relay. Mr LACHAU Thank you for the manual. The one I have is in black and white and the hydraulic circuit and wiring...
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    SK135SR-1 Arm Swing Problem

    I removed the TRAVEL STRAIGHT SOLENOID coupler. But the strange behavior did not change. https://drive.google.com/file/d/17bUd_Xb1qrAELcdoFFfTcHyNIzFBh5qj/view?usp=drive_link I noticed something new. Arming out or SWINGing during the ATTACHMENT operation accelerates the speed of the attachment...
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    SK135SR-1 Arm Swing Problem

    I was able to turn on the N&B CONFLUX SWITCH. But the strange behavior did not change. https://drive.google.com/file/d/1b2P9qizfJLKKERum96jXc32PYh580T-V/view?usp=drive_link When I was fiddling with the wiring, I noticed that the smart relay seems to control the current of the solenoid for the...
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    SK135SR-1 Arm Swing Problem

    Thank you very much for the data. I looked for the conflux switch at the left rear of the cabin but did not find it. The switch frame had a hole space in it so I removed the instrument panel and looked for the switch but could not find it. I removed the left side lever panel and found a 2-pole...
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    SK135SR-1 Arm Swing Problem

    SE-11 P OPTION Pressure sensor https://drive.google.com/file/d/1YdKqhCY3laiD-S44eFcIgAO25qqAAIoF/view?usp=drive_link P-2 BY-PAS CUT SOLENOID https://drive.google.com/file/d/11UH6jbqDO5dT2aMys6tb6TKIIe4VGFwX/view?usp=drive_link I did not know how to check the attachment mode. Could you please...
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    SK135SR-1 Arm Swing Problem

    Link permissions have been updated. Can I view it? https://drive.google.com/file/d/1Z-EY9wxYQCccSRF6A1iU2VMg0-wRnWwu/view?usp=drive_link Attachment is equipped with a forestry grapple. The grapple is connected to the option2 port on the P2 side (LEFT TRAVEL / SWING / ARM ). It is a one way so...
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    SK135SR-1 Arm Swing Problem

    Hello!!Professionals!! SK135-1 Arm and swing movement is worse only when the front attachment is operated. To be precise, the movement slows down for about 1 second after the operation. Otherwise there is no problem. The front attachment is operated by a solenoid valve, not a foot pedal...
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    KOMATS PC160LC-7E0 swing drift creep

    I tried to remove it today but it was held in place very tightly and I gave up. I would like to purchase a long breaker bar. Do I need to grind the seats together after disassembly?
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    KOMATS PC160LC-7E0 swing drift creep

    This valve??
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    KOMATS PC160LC-7E0 swing drift creep

    The left joystick is not touched. About 5 seconds after starting to drift, the engine speed drops and the brakes lock and stop. But the joystick seems to be leaking a little oil.
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    KOMATS PC160LC-7E0 swing drift creep

    Hello Professional!! My PC160 swing would drift and had no power. I replaced the valve plate and it is almost fixed. However, only the left swing drifts. I have swapped the swing safety valve left and right but no change. Please advise.
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