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jaimzness, Engineer
Category: Electronic Musical Instruments
Satisfied Customers: 117
Experience:  DAW and MIDI techniques. Keyboard and synthesizer programming. Electronic repair.
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4year old studio upright w/ sluggish jacks. What lube would

Customer Question

4year old studio upright w/ sluggish jacks. What lube would be the best?
JA: What's the make/model of your device? How old is it?
Customer: Yamaha upright, played often, do I lube the center pins or the butt buckskin?
JA: How long has this been going on? What troubleshooting have you tried?
Customer: Has developed recently, this action has plastic type jacks
JA: Anything else you want the instrument expert to know before I connect you?
Customer: I'm a seasoned piano tech. but I want to do whats suggested for Yamaha pianos
Submitted: 9 months ago.
Category: Electronic Musical Instruments
Expert:  Russell H. replied 9 months ago.

Hi, thank you for contacting My name is Russell. I will do my best to provide the right answer to your question.

Generally speaking, if your jacks are hydraulic, and are not acting properly, lubrication per se is not what is required.

A: check for hydraulic fluid (thin but oily) leakage.

B: What exact model is this? and is it in a stand, or add-on which has the jacks?

Lubrication in the sense of oiling or greasing is not likely to be required. Unless what you call 'jacks' are something else.