I haven't replaced any tines yet. I've got 6 extra tines...I usually clean the tines after each use....this way I can unplug and rocks or tree roots that get stuck in the tine.
I use I long flat head screwdriver...and if a rock or tree root is stuck in the tine....I use the screwdriver and plastic hammer to push it out of the tine.
I usually only use 200 to 250 psi....and get 2 1/2" to 3 1/2" plugs...anything more is over kill. Plus going up or down hill at the lower psi makes it easier on the machine. And you have a better chance of not tearing up the customer's grass.
If you wait until the Fall, I am sure Toro or ExMark will run a "special" and then you should be able to get it down to $8,500.00.
That's what I paid of mine...or it was $8,000????
But My ExMark dealer hooked me up with someone else....so I could get a fleet discount. I guess he's just glad to get the volume of sales.
2013 Ford F450 Super Duty Truck
2010 Exmark Lazer Z 60" deck
2012 ExMark 30" Riding Aerator
2011 John Deere Pro Gator 2020a
2011 Lawn Solution Dual Hyrdo Aerator 24"
2011 Echo Handheld (trimmers to power pruners)
2007 Big Tex 4ft metal high side 7' x 12' Trailer
2012 PJ 7' x 16' Dump Trailer
2014 Vintage 8.5' x 24' Enclosed Trailer
2012 Ecolawn Applicator model 200 Compost Spreader