ING6018: When you use the finish mower, do you set the 3pth on float and set the height with the wheels on the deck? I've never seen one up close.
On the 3 point mowers, mowing deck height is adjusted by 4 spacers (1", 3/4", 1/2", 1/4") that are repositioned on the bottom of the rear caster wheel shafts to raise the deck. The front is supported by a chain that attaches to the upper bars (top link).
Here is where it gets iffy-
All the posts I found online indicate that the deck should be operated with the 3 point in the float position. However, in this position, the front of the mower
(and lift arms) are supported by the chain. This puts a lot of weight on the clevis pin where the chain attaches to the top link. Last weekend, the pin broke
and ended up with the chain getting tangled up in the mower blades.
I rummaged around and found the operators manual. According to the book, the 3 point is not in the float position when mowing. The instructions say to lower the 3 point until the cylinder rod is completely retracted.
The 3 point mower also requires a Cylinder Rod Mounting Adapter (as it is called in the Operator's manual). This adapter attaches to the top of the lift cylinder rod attachment point at the rock shaft.
It consists of Ingersoll Part#
C33210 ARM - lift cylinder
C28105 RING - retaining
C29693 PIN - clevis ½"
I do not have this part and suspect it gets misplaced and forgotten over time.
Here is a view from the parts list
This is a view from the operator's manual.
Look at the diagram from the Operator's Manual and notice 3 key points:
1) The adapter moves the rod attachment point outward and lower than the normal attach point.
2) The adapter has an elongated hole where the 1/2" clevis pin attaches to the lift rockshaft. This slot allows some free motion of the lift arms (independent of the cylinder rod.
3) This part is only used with the 3 pt rotary mower.