46
Removal
Equipment Required
22mm (M14) socket or spanner
NLGI #2 Molybdenum Disulphide grease with paint brush/distributor
Removing the input shaft works in a reverse fashion from what is stated in the fitting section; by removing the
shaft from the tractor end first. Ensure that the PTO is disengaged, tractor engine is stopped, and the handbrake
is applied before proceeding to remove the shaft.
It is best practice, when removing the input shaft, to wipe a small quantity of grease (NLGI #2 Molybdenum
Disulphide) onto the splines of the exposed shaft end to prevent corrosion.
If the machine is not going to be used for an extended length of time the input shaft should be removed
completely and stored indoors to maintain its condition.
Proceed as follows:
4.5.1.6 Pull the input shaft yoke collar back and pull back the
shaft off the output splined shaft of the tractor; see
Figure 4.10 (B).
4.5.1.7 If the shaft is not destined to be removed completely,
utilise the machines PTO support bracket to rest the
PTO shaft on; see Figure 4.14. This will ensure that
the shaft doesn’t get contaminated with dirt.
Figure 4.14 – PTO Support Bracket
4.5.1.8 To then completely remove the shaft, remove the taper pin, flat washer and nut from the machine end;
see Figure 4.11.
4.5.1.9 Refit the removed taper pin, flat washer and nut for safe keeping.
4.5.1.10 It is best practice, when removing the input shaft to wipe a small quantity of grease (NLGI #2
Molybdenum Disulphide) onto the splines at each end to aid later refitting to the tractor.
4.5.2 PTO Shaft Specifications
SR460/620/820 machines are primarily sold to operate at 1000 rpm, although the SR460 can be ordered and
specified to operate at 540 rpm.
DANGER! Do not use PTO adaptors to attach a non-matching implement driveline to a tractor PTO.
Use of an adaptor can double the operating speed of the implement resulting in excessive vibration,
thrown objects, blade/driveline failures due to changes in the machines design intended use. PTO
adaptors also increase the exposed working length increasing the probability of entanglement with
external objects. If the shaft is incorrect for the tractor; contact your local McConnel dealer for
assistance.
It is important to only operate at these speeds as a maximum and that the input PTO shaft is of the correct
specification for the machine and tractor. See Table 4.2 for input shaft speed options and the spline quantity
options.
Machine PTO Speed Number Of Splines
SR460
540 rpm 6
1000 rpm
6
21
SR620 1000 rpm
6
21
1000 rpm 20
Table 4.2 – Input Shaft/PTO Speed Options
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