Iseki 1610

[HD328]

Hey All !! First post here , With a big problem. As you can see I have a Iseki 1610. Ive had it for a couple of years. Ive used it to bush hog and clear 5 acre of land. It has worked pretty good until now. The tractor starts and runs good , Until I engage the PTO with the bush hog attached. The power is simply gone. The tractor barely moves and the blade barely turns. With the bush hog unattached I can spin the blade freely with my hand and the PTO on tractor turns normally. This problem slowly evolved . I checked all the fluids and filters and all are normal. It acts like lost of horse power. The motor does not smoke alot... but some. Any ideas ? Weak motor ?Time for a over haul ? Not really sure if I want to put alot of $ in the tractor. Any help would be thankful.

[Michael]

Do you have anything else that is powered by the PTO like a rototiller? What I am thinking if going by your description is something might not be right with the brushhog. Do you have good power otherwise?

[bigl22]

Until I engage the PTO "]- since you said " when I engage the pto it sounds as if whatever system it uses for a pto clutch is worn out -- do you need to split the case on that model to check it? or is there an inspection hole/plate?

[mark777]

HD328...Welcome to MTF.

Does your tractor do this when you engage the PTO in second gear? You don't often hear of a PTO slowing down under power or not...they usually work or don't work at all. Perhaps the rotary cutter is binding at the drum, wire or rope twisted on the upper side could cause severe drag, even though the blades may still spin freely. The rotary cutter gear head may also have a bearing trying to seize when it heats up.

Your (TS) 1610's PTO is driven off the bull gear so it should work correctly...or not at all. If you're convinced the PTO attachments are not the fault of the power loss then I would suspect that the engine has lost significant compression and that is where the loss of power is coming from. If you can hook up a box blade or skid something heavy, that should tell you for sure if it's engine related (power) or a PTO problem.

Good Luck, Mark

[HD328]

Thanks for the replies . The tractor does in any and all gears . I detached the bush hog and (with help) flip the mower over and inspect the blade to check for wire or rope/vines ect. I can get the blade to turn at full speed , After a long wait and the tractor full throttle , As soon as I slowly let the mower down and start to cut it stops the blade.What Iam cutting is very green small weeds.Ive cut 1 1/2 trees down with no problem. Now , Mark777..I can hook my cultivator up and the tractor seems to work OK , As the box blade. ?????? Thanks again for the help !!!

BTW...The RPMs on the tractor stay up when the blade stops. The tractor does not bog down .The tractor stops moving also.. but the RPM stay up ??

[mark777]

Originally Posted by HD328

BTW...The RPMs on the tractor stay up when the blade stops. The tractor does not bog down .The tractor stops moving also.. but the RPM stay up ??

If all the problems stem from operating the bush hog, but not other PTO driven implements like your cultivator, then it must be rotary cutter related (?? I think IMHO). Are you using an over-run coupler on the PTO shaft? Is there any excessive noise or wear on the cutter drive line or universals??

I'm thinking that if the box blade engages and the tractor runs fine...so must be your clutch. Your cultivator works fine, then the PTO must be good too.
By process of elimination, your rotary cutter and components must be failing somewhere. Admittedly, I am now guessing . Any way to test your bush hog on another tractor?

Mark