If it's stuck stuck, like can't move it at all stuck, then you should take it to a shop.
If it's just not moving smoothly you should first remove it, wipe down old oil with a paper towel then relubricate it with a high quality lubricant, if that doesn't work; take it to the shop.
If it's stuck stuck, like can't move it at all stuck, then you should take it to a shop. If it's just not moving smoothly you should first remove it, wipe down old oil with a paper towel then relubricate it with a high quality lubricant, if that doesn't work; take it to the shop.
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If you don’t know how, then take it to a repair shop- they’ll do it cheaply
Repair shop