Currently, I am in the process of refurbishing my Takeuchi TB260 by replacing the main bucket pin and bushings. I recently received the new OEM bushings and stored them in the refrigerator overnight without inspecting them first. Upon installation the following morning, I noticed that the grooves for grease flow did not match the original bushings. My dipper arm features a single grease nipple in the center, which distributes grease into the bushings for lubrication. The old bushings show grease grooves extending beyond the edges, while the new ones have grooves that stop short and include a center grease hole. Should I be concerned about this difference, or will wear over time allow for proper grease flow? Should I consider extending the grooves in the new bushings beyond the inner edge? These bushings were purchased from a Takeuchi reseller, raising the question of whether they sent the wrong ones or if the design has changed over the years. My TB260 is a 2018 model, so it is relatively new.
After adding grooves to the surface, I used compressed air to clean the area. In addition, I plan to wipe it down with a diesel-soaked rag, ensuring all metal shavings are removed. It's crucial to thoroughly dry the surface and blow it with air to prevent any debris from lurking in the grooves.
It's fantastic how you're revitalizing the classic Takeuchi equipment. Your efforts are truly commendable and are breathing new life into the machinery. Keep up the great work!
How many hours do you have on your 260 machine? Mine has accumulated over 2,200 hours with minimal wear on the pins.
It is advisable to work efficiently in this manner. It is worth noting that when I replaced the bushings on a Caterpillar 320 machine, I also encountered a central greasing cavity. The bushings are only dimpled without any grooves, yet the grease is still able to flow through and outwards.
My excavator has accumulated just shy of 2,400 operating hours. I have been meticulously inspecting and deep cleaning every nook and cranny, including removing the seat to thoroughly clean the interior of the cab. In addition to a layer of dust, I also found unpleasant grease buildup that needed to be addressed. After my efforts, the excavator looks significantly better. I have decided to replace both bucket pins and thumb pins due to excessive wear and tear. The bucket rod required re-chroming due to numerous scratches and a deep nick. I am also replacing a leaking seal to ensure optimal performance.
Answer: Answer: The mismatch in grease flow grooves could be due to a design change in the bushings or a possible error by the reseller in sending the wrong ones.
Answer: Answer: It is advisable to address the mismatch in the grease flow grooves to ensure proper lubrication of the bushings and prevent premature wear.
Answer: Answer: Extending the grooves in the new bushings to match the original ones might be a solution to ensure proper grease distribution and lubrication.
Answer: Answer: While wear might eventually allow for improved grease flow, it is recommended to address the mismatch in the grooves to prevent potential issues with lubrication and bushing longevity.
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