to increase and decrease the speeds gradully
Need to know which pulley.
people invited 9j pulley
you need to replace the alternator
In most cases you need a pulley puller. Need to know make, model , year and engine to help you more.
The belt could need some dressing, or the pulley could bent. The belt could need an adjustment.
Check the crank shaft pulley
What tools do you need to remove the crankshaft pulley on a 1995 Honda Passport?
To remove that pulley with out damaging the pump or the pulley you need a power steering pulley puller. This tool will also install the pulley. Your local auto parts store can rent or sell you that puller.
You need a special pulley removal tool. And you will also need a special tool to reinstall the pulley. You might be able to buy one at your local parts store.
You need to rent, borrow or purchase a power steering pulley puller. This tool will remove and replace the pulley without damage to the pulley or the pump.
There is a bolt that is blocked by the pulley. In order to remove the pump you need to remove that bolt. So you need to remove the pulley first to get access to that bolt.
These are pressed on pulleys so it is highly advised not to change out the pulley. Your safest bet is to purchase a whole nose cone that already has the pulley size that is needed. We have seen way too many nose drives ruin because people are attempting to use a pulley puller to take it off. Once it is off, you also need to repress it on.