Ibex TS51C Drum Mower Assembly Guide
Copyright 2020 Ibex Equipment Co.
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PTO Safety Warnings
Read the manuals that are supplied with your PTO’s before operating the machinery. Failure to follow all safety
procedures in the manufacturer’s literature could lead to equipment damage, personal injury or death.
The primary PTO shaft is supplied long because the length of the draw arms on tractors vary. It is
typical to have to remove excess length from the PTO before using the implement with your tractor. If
you have more than one tractor, it is important to cut the shaft for the tractor you will be using the
implement with. Mark the PTO with permanent marker as to which tractor it is to be used with to avoid
confusion that could lead to damage. Using a PTO shaft that is too short can cause the PTO to separate
during use that could lead to damage of personal injury.
The PTO shaft must never completely collapse in use, because to do so would put the weight of the
implement attached to the tractor pushing against the PTO’s of the tractor and implement. The output
bearings are not designed for thrust forces pushing the PTO forward into the gearbox, and could cause
severe damage. This could be an expensive repair on the tractor if the PTO bearings or gearing were
damaged due to an improperly fitted PTO shaft. If you have to lift the implement to attach the PTO, then
the PTO shaft is too long and must be cut.
The PTO shaft going to the tractor should have 2 inches of space to retract when the distance between the
splines on the tractor and implement are at minimum. If this is not the case, the PTO must be cut to
avoid damaging the tractor or the PTO shaft. If you need to cut the PTO shaft, see the instructions that
came with the shaft.
Cutting the PTO Shaft to Fit the Tractor
The PTO shaft that attaches to your tractor may be too long to fit and will have to be shortened. The process
discussed here will be different for different models of tractor, so do not use these measurements as they may
not work for another make and model tractor.
First, have the implement attached to the tractor so that it is adjusted as it will be used, and that the PTO splines
on the tractor and the implement are at the same height so the distance between them is at the minimum
condition. Attach both ends of the PTO to the tractor and to the implement with the PTO split apart in two
pieces. The PTO guard on the gearbox is removed for better visibility. Orient the shafts so that they pass by
one-another as parallel as possible.
Figure 38 PTOs installed to mark overlap
Using a straight edge, transfer a mark from the end of the tube section to the other section as shown here and in
the manual that comes with the PTO. This line represents how much the shafts are too long to fit together. The
