Want this question answered?
you were no help
Different makes and models install differently. Please ask again with the make and model.
The deck must be slipped beneath the machine from the left, the lift lever locked down and the rear hangers and front hanger plate attached. The belt will take take a 90 degree twist with the front part to the left side.
One might learn how to install a 42 inch deck belt on a John Deere lawnmower by looking at their user manual. A better route to this may be to take it to a lawn mower shop for repair.
on the mower deck
john deere LT155 38inch cut mower deck
38'' deck
Measure the width of the deck with a tape measure.
I have a Craftsman DYS 4500 and there is a nut under the left rear fender next to the tire that adjusts level. I'm still having trouble getting the deck tuned again despite my best effort with a bubble level, but that nut is definitely adjusted it.
How do you change a mower deck belt on a John Deere L130?Read more: How_do_you_change_a_mower_deck_belt_on_a_John_Deere_L130
In most cases removing the deck will make the job easier and faster.
mower manuls are at this link http://manuals.mtdproducts.com/mtd/DocGetter?doc=769-00533.pdf