Don't understand tax code allocation

Expected income from my main private pension is almost twice that from a part-time employment and is sufficient to use all my tax free allowance, yet the majority of my tax code is allocated to the part-time income. How do I get the allowance re-allocated to the main pension income?

Hi Peter Moore,
To review your tax code you will need to contact HMRC here:
How to update your tax code
Thank you.