how do I adjust the oil pump chain on 1999 Volkswagen Jetta TDI

I need to remove the oil pump so I can look at bearings.
the engine model is ALH

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer 1 comment
If the Oil Pump Chain is too loose, I would replace it. How many miles are on this vehicle?
there is about 170,000 miles on the car but I need to know how to remove the oil pump and adjust the oil pump chain