The arm cylinder on my Bobcat 435 excavator is displaying excessive play during operation, with noticeable slop throughout the full stroke. Despite regular maintenance over its 3,000-hour lifespan, all pins remain secure. A video demonstration of the issue is available, showcasing the extent of the play in the arm cylinder. Any guidance or recommendations on addressing this issue would be greatly valued.
If you suspect there is an issue with the cylinder cushion inside, it is recommended to consult your local Bobcat dealer to inquire about the availability of the cylinder cushion valve for this machine.
Thank you YCS for the advice. It may seem like a simple solution, but I prefer to consult with my dealer. However, after a negative experience with my local bobcat dealer regarding a user access password issue on my 435 model, I have no intention of seeking their assistance again. Despite providing the VIN, a 700-page service manual, and a bill of sale with picture ID from the previous owner in person, the dealer was unhelpful once they learned I did not purchase the machine from them. As a result of this poor customer service, I have decided not to purchase another bobcat in the future, which is disappointing as I am fond of the machinery. Apologies for the frustration, but based on my past experience, I anticipate receiving a similar response if I were to inquire about the cushion valve. Can you confirm if the cushion valve is located on the cylinder?
Disassemble the cylinder and inspect the nut/bolt securing the end inside. If it is loosening, it is a simple task to take it apart and tighten it. This quick maintenance check will ensure your cylinder remains secure and functioning properly.
Got it, farmboy555. Appreciate your help!
Thank you for pointing it out, farmboy555. The break has been cleaned, the lock secured, and it's now back on the machine.
Answer: - Excessive play in the arm cylinder can be caused by wear and tear on internal components such as seals, bushings, or the piston itself. It could also be due to misalignment or damage to other parts of the hydraulic system.
Answer: - In addition to checking the pins, you should inspect the condition of the seals, bushings, and piston inside the arm cylinder. It's also important to examine other components of the hydraulic system for any signs of damage or wear.
Answer: - Regular maintenance tasks like checking and replacing worn seals, bushings, or other internal components can help reduce excessive play in the arm cylinder. It's also important to ensure proper alignment and functioning of the hydraulic system as a whole.
Answer: - Depending on the specific cause of the excessive play, the recommended procedure may vary. It is advisable to consult the equipment manual or seek assistance from a qualified technician to diagnose and address the issue effectively.
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