8999151EN: v1 11/03/2021
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Original instructions (ENGLISH)
Website: www.spearheadmachinery.com
4.4
PTO Shaft
CAUTION!
Many of the equipment components listed in this section used to carry out processes are
heavy (25kg/60lbs+), and special lifting procedures are recommended to reduce potential user lifting
injuries. Use mechanical lifting assistances, two people and other proper lifting techniques when
connecting the input PTO shaft between the machine and tractor.
4.4.1
Fitting & Removal Of The Input PTO Shaft
Fitting
Make sure before proceeding to try to fit the input PTO shaft between the tractor and machine that the
specification of the shaft is the correct speed, size and has the correct quantity of splines for the machine and
the tractor can offer the machines required PTO speed.
Furthermore, ensure that
it’s been adjusted to the correct length for use between the machine and the given
tractor as stated in Section 3.3.1.
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 Spearhead dealer for
assistance.
WARNING!
When attaching the machine input shaft to the tractor power take-off, it is important that the
connecting yoke spring activated button operates freely allowing the PTO to slide freely and the locking
balls to seat securely in the groove on the tractors output PTO shaft.
Push and pull the input shaft back and forth several times to ensure it is securely attached and the
button returns to its outwards position. An input shaft not attached correctly to the tractor PTO shaft
could come loose and result in personal injury and damage to the machine.
Both the input shaft yoke and tractor PTO shaft must be dirt free and a light smearing of grease should be
applied prior to attachment.
