My ground speed is very slow can i adjust the travel pedal on my troy built 22 hp 46 in hydro lawn mower

Check the pulleys on the deck

should be all right just check shaft length and diameter

I believe that engine speed will adjust travel speed. GOOD LUCK.

One or more of your drive belts is in need of adjustment or replacement, maybe. Possibly, your electric (or manual) PTO clutch could also be adjusted. You do have the spring tensioner on the deck engaged, right? You say the engine doesn't bog when this happens so I am inclined to think "clutch" and/or "PTO belt" to the deck and/or the "deck tensioner" are the things to check.

The tensioner will be the easiest, it is a handle on the left side ON the deck. Has a BIG spring on it. Make sure it is engaged.

Is yours a Troy Bilt manufactured in Troy New York or is it another manufacturer (MTD?). Troy Bilt is actually out of business, having sold the Troy name to a variety of makers depending on the model line. I don't have the run down on who makes what any more (tillers, chippers, mowers, blowers, trimmers, etc.), but Troy Bilt of Troy, NY is no more. :-(

I have a 16 HP Troy with 42 inch deck driven through a electric clutch. I also have a "grass pump" on my deck. Important maintenance tips: Keep the bearings greased, keep the deck clean underneath. The belt on the deck should have the tensioner released when you are NOT mowing. Keep the blades sharp and in good repair. Mow with engine at full speed. When you get to areas of heavy growth, slow the tractor down (hydro drive) or reduce to a lower gear (gear drive). NEVER adjust speed using the "clutch" (hydro drive or gear drive). When you engage the blades (electric or manual) always have the engine just above idle, bring the engine speed up slowly to preserve the belts and reduce stress on all components.

I am sure this is the fix for your trouble. If there is anything else or if I missed the ball, please let me know and we will go further.

Thanks for your question @ FixYa.com

You have to do one more thing to move this tractor without the motor running.
It takes two people to move the Revolution. One needs to sit on the seat and hold the forward pedal down. It will then freewheel.
So, brake off, both hydro release levers pulled (do NOT pull hard or you will break the springs) and the forward (right hand side, big pedal) pedal pushed down.
Any other question? I know this unit pretty well.

Cable could be stretched belt could be worn or old, if it has a gear box maybe it slipped a gear or lost some teeth. Do some investigation, Good Luck

I did not know riding mower had a gas pedal. I know if you leave the throttle control up all the way the engine will choke out. The pedal you are pushing, I think, is the forward/reverse hydrostatic transmission. You may need a new drive belt. The one you have now may be stretched out.
Good Day.

Sounds like its slipping..
Have you checked the hydro fluid ?
Are there any leaks ?
Could be an adjustment in the pedal..
Look at all the pedal linkage and you might find some adjustment there..
Or - maybe a moving part is waring out in the linkage..

Hope this helps !!
rate me good ;o)

Go to... http://www.managemyhome.com/mmh/owner_manuals and enter your model # that under the seat.

put oil or grease all the shafts and bearings inside and out, if possible adjust the cutter blade contacts.