How do you use the shimano tiagra level drag reels for trolling

The letter "R" on a Shimano reel typically indicates it has a rear drag.
you should find a know on the bottom end of your reel that allows you to adjust drag tension. Just Remember to back off or loosen your drag when not using your reel to keep your drag in proper working condition.

SHIMANOBaitrunner DL Specifications SpinningReels Shimano Fishing NZ
here is a link to a Shimano page with a PDF file link to a schematic for your reel.
This should give you the info you need to disassemble your reel.
if you feel you would rather have an author is repair shop do the work for you follow this link. Home

There is a Belt that wears and you need to replace..

The answer is yes and no.

The 5703 shifters will work both derailleurs and match the 6603 group as they are both 10spd.

The Tiagra will not work because it is 9spd, it will functionally shift the derailluer but you will not be able to line up the gearing.

The rear shifter needs to match the number of gears on the back (cassette) in the case of the 6603 group that is 10spd, so you can use any 10spd rear shifter from shimano. The Tiagra is either an 8spd or 9spd depending on the model and will not work with the cassette. You can use a 6603 rear derailleur with a Tiagra group, as long as the shifter and cassette are both the same.

http://fish.shimano.com/publish/content/global_fish/en/us/index/customer_service0/instruction_manuals.html

Get's you the current manuals in english.

log onto shimano.com and there you will find manuals for everything they produce, failing that request it from customer support, they are very friendly to deal with

Go to http://techdocs.shimano.com/techdocs/index.jsp

Search in drop down list to go to all tiagra items and identify your particular components. Shimano are good at numbering their parts and you should find the number you seek on the bicycle component. You will usually be able to download an exploded parts diagram and service instructions. The service instructions are prefixed by the letters SI.

One of the oldest warranty and approved service centers for shimano Garcia and others is coastline service center in NC. Over 40 years in business. Also warranty and service for minn Kota and Motorguide trolling motors. They charge less than most service centers and you can always call them for parts service or just advice. Laura is the lead shimano technician and you can reach them at 919-736-3859. Hope this helps. I send them my reels from 1600 miles away.

You need a new bail spring this is very common, go to **** sporting goods or gander mountain.

I would say find a shimano dealer in your area or goto shimano.com
sports authority is a shimano dealer if theres one in your area