Re: Someone with a 4100 and 54\" front blade
<font color="green"> ... It never fails to impress me, the amount of engineering and ingenuity that JD puts into its products... </font>
I am not so sure it so ingenuis in this case. Although I am not concerned that the mounting points will completely fail, I wish they were more precise and made out of harder steel.
There are six non-solid "joints" between the tractor frame and the blade.
1 Frame to Front Hitch pin and slots.
2. Front Hitch to Tilt-Angle Mount pin and slots.
3. Tilt Pivot and tilt cylinder pins.
4. Angle Pivot.
5. Quick-tatch connection to blade assembly.
6. Spring-trip pivot.
All these joints seem to be wearing a bit, putting more and more vertical slop into the setup. At this point, there is probably a full six inches of slop in the vertical direction at the bottom edge of the blade.
It is becoming an issue because it is getting to the point where even on level ground, the blade is only able to push down far enough to barely lift the front wheels off the ground. On uneven ground, it is sometimes not possible to get any pavement-scraping down-force at all.
Another issue is that when trying to do some light grading in dirt, when I hit a higher or tougher chunk of earth, the various joints and the slop conspire to flip the blade assembly down, digging even more into the ground. If the blade was completely rigid in the vertical direction, the angle would not change - the blade would shave through as intended, or the tractor would stall or lose traction, but not get its front end wedged up into the air.
I am thinking I could weld some 3/4" or 1" nuts onto the top of the tilt angle mount and then after it is mounted, tighten some bolts through them, pushing on the front bumper of the tractor frame to take all the slop out of the first two joints in the system.
That will probably be in the spring when I start working on the yard again.
- Rick