I'm new here and seeking assistance with researching a specific piece of equipment I'm interested in purchasing. I am looking into buying a 1995 Komatsu model with 3994 hours, which has been sitting unused for a year. After jumpstarting it, I noticed that the rubber tracks, sprockets, and rollers are in good condition at around 70 percent. However, there is an issue with the boom, as it moves at a very slow pace due to an electric wire system attached to a rheostat at each joint. The owner mentioned that this system is meant to control the depth and height to prevent the bucket from hitting the cab when using the knuckle boom. I would appreciate any assistance in providing more information about this machine, especially details about the electric apparatus affecting the boom speed. I am curious if there is a way to bypass this system to test the actual hydraulic speed of the machine. I also would like to know if replacement parts are readily available, their cost, and if they are interchangeable with other models. Additionally, I'm interested in learning if this machine has any common issues or known ailments, as I have been unable to find much information online. I apologize for bombarding you with questions right from the start, but I need to make a decision soon.
Greetings kirt and welcome to the forum! In North America, a purple Komatsu is considered a gray market machine. Before purchasing one, it's crucial to contact your local Komatsu dealer with the model and serial number to ensure they can support the parts for that specific machine. It's important to note that Komatsu dealers operate territorially and only sell within their designated areas. The potentiometers on these machines not only allow for setting presets on boom functions but also serve as indicators to the ECU to prevent accidents. If you're experiencing slow boom operations, it may not be due to the boom position sensors, but rather another issue. The PC75UU, a similar machine, does not have a system that slows down or speeds up boom functions, but rather stops them entirely. While the 75UU and 50UU machines may not be the fastest compared to others, if you're experiencing exceptionally slow operations, there may be an underlying problem that needs to be addressed. It's essential to ensure the machine is functioning properly before making the purchase.
Answer: Answer: The slow pace of the boom movement could be due to the electric wire system attached to a rheostat at each joint, which is designed to control depth and height to prevent the bucket from hitting the cab when using the knuckle boom.
Answer: Answer: It may be possible to bypass the electric system to test the hydraulic speed of the machine, but it is recommended to consult with a professional to ensure safe operation and proper troubleshooting.
Answer: Answer: Replacement parts for the Komatsu PC50UU-2E may be available through authorized dealers or aftermarket suppliers. The cost of parts can vary depending on the specific component and source.
Answer: Answer: While some parts may be interchangeable with other models, it is advisable to consult with a Komatsu dealer or parts specialist to ensure compatibility and proper fitment.
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