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View Full Version : My mower cant stay straight!!


s-lc
05-05-2011, 11:19 PM
I have a SCAG 48'' belt driven walk behind. i have noticed lately that im fighting with it to keep a straight line. i feel like i am working both wheels to keep it in a line but it is always pulling to the left. i understand that on hills and slopes it will slip and slide, but i am having this problem on flat ground. does anybody have any advice or suggestions? thanks!!

Southern Pride
05-05-2011, 11:21 PM
Dude just look at your drive belts. One of them is either off the track or worn out and slipping like crazy. That's my first bet. Go check them out and let us know what's what. Can't be doing lawns and having your mower fight ya man. Good news is the belt drive mowers are a lot simpler drive system and that translates into way less $$$. I'm willing to bet it's one of the drive belts, and if so, you really should replace both at the same time.

Griffin

s-lc
05-05-2011, 11:27 PM
the thing is its a new mower, i have only done about 10 jobs. i dont think it is worn...i inspected the belts and they appear to be right on the tracks/wheels. should i contact my dealer?

Southern Pride
05-05-2011, 11:43 PM
Okay, so you're constantly having to squeeze the right hand lever to keep it going straight since you say it pulls hard left?? Check your linkages to the pistol grips (or whatever type handles you have) make sure both sides match up on everything and slowly work your way through every process.

Also, is it possible that the left tires brakes are slightly locked?? Make sure that's not the case as well. It's a brand new mower??? Hell, it's something simple then. If you don't figure it out tonight, a quick call to your dealer and they'll be able to tell you real quick.

DaveWB
05-05-2011, 11:46 PM
Is the front axle bent from hitting something?

Runner
05-05-2011, 11:49 PM
Put a little more air in the left tire and call it a night.

VanAllen's Lawn Service
05-05-2011, 11:49 PM
adjust it out if you can or take it to the dealer

davidcalhoun
05-06-2011, 12:20 AM
Yep, check the air pressure. You might also put a level across the top of the tires and measure the height. They need to be close.

topsites
05-06-2011, 12:25 AM
Brand new > Under Warranty > Don't touch > Run to the Dealer!!!

bc3xx0
05-06-2011, 01:19 AM
Yep, check the air pressure. You might also put a level across the top of the tires and measure the height. They need to be close.

X2... Or use a small tape measure to measure the circumfrence.

I always adjust the belts and linkage per the manual, then play with air pressure to get it tracking right.

ALC-GregH
05-06-2011, 12:07 PM
Brand new > Under Warranty > Don't touch > Run to the Dealer!!!

Depends on what it is and how mechanically inclined a person is. The first thing I did with my very first mower was, go over the entire thing and checked, measured and adjusted EVERYTHING on the mower so "I" knew it was right.

X2... Or use a small tape measure to measure the circumfrence.

I always adjust the belts and linkage per the manual, then play with air pressure to get it tracking right.

You're doing it backwards. Always get the air pressure set FIRST, then adjust the linkage rods to track straight. It doesn't matter if the rod adjustments are different as long as it tracks straight when both pistols/levers are pulled/pushed all the way in the same direction.

bc3xx0
05-06-2011, 02:48 PM
You're doing it backwards. Always get the air pressure set FIRST, then adjust the linkage rods to track straight. It doesn't matter if the rod adjustments are different as long as it tracks straight when both pistols/levers are pulled/pushed all the way in the same direction.

We are talking about a belt drive, right!!? As long as you make the tires the same diameter first, then you can do it first. But if you just set them the same PSI, you are just wasting time. Those tires are never the same. Even if you get them from the same lot. If you adjust your tensioners and rods the way the manual tells you, you can adjust the tracking using the tires, without a gauge or tape.

It's never failed me and can be done in a matter of minutes.

deerewashed
05-06-2011, 02:57 PM
count the number of rings on the linkage bolts, make sure both sides have the same amount bellow the bolt. also make sure air pressure is identical, if both are even and it still dont work put more air in the left than the right