Adjusting the PTO shaft to the correct length
IMPORTANT: | When checking driveline PTO shaft minimum length, it is necessary to |
| alignandlevelthetractor’sPTOshaftwiththegearboxshaftofthemower. |
1.Measure the shortest distance possible between the tractor PTO shaft and the gearbox shaft of the mower. The lower links on the 3 point hitch must be hanging downward to obtain the shortest length (see diagram 1).
lower links
Diagram 1
2.Shorten the driveline PTO shaft as follows:
a.Make sure the tractor PTO shaft and the mower PTO shaft are level with each other.
b.Separate the two driveline shaft halves and connect one half to the tractor PTO shaft and the other half to the mower gearbox shaft.
c.Hold driveline shaft halves side by side to determine if they are too long. The shieldsoneachhalfshouldendapproximately3”fromtheuniversaljointshield. Measure3”backfromtheuniversaljointshield(dimensionXonDiagram2)and mark that location on the inner and outer shields.
d.Cutoftheoutershieldatdimension‘A’.Measuredimension‘A’fromtheendof the outer shaft and cut the same amount off of the outer shaft. Cut off the inner shieldatdimension‘B’.Measuredimension‘B’fromtheendoftheinnershaft and cut the same amount off of the inner shaft.
e.Remove all burrs from shafts. Keep shaft ends square not rounded off. Clean all filings from drive shield tubes.
f.Once driveline has been reassembled, check to make sure the driveline does not bottom out in the shortest position.
AX
Mower
PTO
X
Diagram 2 12
Tractor
PTO
B
