8999129: v1 11/09/2018
Page 8.2 of 8.5 pages
Original instructions (ENGLISH)
Website: www.spearheadmachinery.com
Avoid excessive skin contact with used lubricating oils and always adhere to the health protection
8.3.1.1
precautions.
Avoid prolonged and repeated contact with oils, particularly used engine oils.
8.3.1.2
Wear protective clothing, including impervious gloves where practicable.
8.3.1.3
Avoid contaminating clothes with oil (particularly those next to the skin). Overalls must be cleaned
8.3.1.4
regularly. Discard heavily soiled clothing and oil impregnated footwear.
First aid treatment should be obtained immediately for open cuts and wounds.
8.3.1.5
Apply barrier creams before each work period, to help prevent lubricating oil from contaminating the
8.3.1.6
skin.
Use moisturisers after cleaning; preparations containing lanolin help replace the skin's natural oils which
8.3.1.7
have been removed.
If skin disorders develop, obtain medical advice without delay.
8.3.1.8
If there is a risk of eye contamination wear eye protection (e.g. goggles or a face shield). Eye wash
8.3.1.9
facilities should be provided in close vicinity of the work area.
NOTE
: Used oil must be collected and be delivered to a disposal company, where the oil will be processed
according to the governing regulations.
8.4
Power Take Off (P.T.O.) Shaft
To increase the working life of the PTO shaft it should be periodically checked, cleaned and lubricated. Refer to
the ma
nufacturer’s instructions, (supplied with the shaft) to adjust or service the PTO shaft.
8.4.1
Seasonal slip clutch maintenance. (If fitted)
It is important that the clutches slip when an obstacle or load heavier than the clutch setting is encountered.
Therefore, if the machine sits outside longer that 30 days and is exposed to rain and/or humid air, it is important
to make sure that the clutch lining plates are not rusted/corroded together. Before using the machine, use the
following procedure to make sure the clutch will slip and give the overload protection required.
Measure the spring lengths. These
8.4.1.1
should be 33.2mm on a 540rpm machine,
and 33.0mm on a 1000 rpm machine.
Spring compression and the clutch friction
material determines the power transferred
through the clutch.
Loosen the nuts on all springs, see Figure
8.4.1.2
8.1 (A), just until the springs can freely
rotate, yet remain secure on bolts.
Mark the outer edge of the friction plates
8.4.1.3
as shown in Figure 8.1 (B)
.
Set the PTO speed to that detailed in
8.4.1.4
Section 1.4 ‘Machine general
specification’.
Start the tractor engine and engage the
8.4.1.5
PTO (for approximately one second
duration) and then quickly disengage it.
The friction lining plates should break
loose.
Turn the tractor off, engage parking brake
8.4.1.6
and remove and pocket the key.
Figure 8.1
Inspect the previous marking on the friction plates. The mark should now be out of alignment, showing
8.4.1.7
that the slip clutches have operated. If not, completely dismantle and clean all mating surfaces.
If the above power test is successful and the marks are not aligned, then tighten the nuts on the
8.4.1.8
springs to their original position, see Figure 8.1 (C), and replace all guarding.
