Well the weather has changed a bit and the rivers are colder, which can spell a lean time for anglers. However Chub will always feed in the coldest of conditions, so if as you say you bit of river has chub then you should be fine. Bait can be maggot bread meat, that's fine.
If it is a smaller river look for nearside features such as undercuts, which chub love, and rushes sedges etc, chub will stay alongside such in the day. You have good tackle, so that's not a problem, I would suggest you keep the rod down, sit down and hold the butt of the rod in your lap, so you can strike quickly, chub are devils for finding snags believe me, so you need to get the fish under control asap.
A good bait would be bread flake, or meat, just put in a few free offerings and the away you go, when the swim dies, as it will move to the next spot. Use as much lead as you need, no more, or just a swan shot (big shot) pinched on the line a foot from the hook will be fine.
Take care with unhooking the fish as chub are greedy and will swallow the bait, make sure you have a disgorger to hand and be careful not to damage the fish. Make sure you have a good net, and of course a mat to rest the fish on. Don't keep the fish out of the water for longer than 30 seconds if you can, any longer rest in the net.
Be prepared to move often and change baits, but above all keep it simple, and you will be fine.