Technical information

HYDRAULIC SYSTEM
Working pressures
30OR & 40OR: 138bar (2000psi)
50OR: 165.5bar (2400psi)
Hydraulic tank
Ensure that the hopper is fully down and
the engine stopped.
Top-up as required with oil of the
recommended grade. Do not mix different
grades of oil.
Clean around filler cap before removal.
This is located inside the mainframe on
the side of the mixer opposite to the
engine.
Once a week check that the oil level in the
tank is visible but no more than 12mm
(l/2") from the bottom of the filler.
Filling filter breather, removal and
cleaning
The tank is provided with a cylindrical filter
which filters the hydraulic oil when filling or
topping-up the system.
This filter is combined with a breather unit
which is incorporated in the filler cap.
The cap can be removed by unhooking
the retaining chain.
The breather in the cap should be washed
in petrol every month and air dried
throughly before refitting.
Provided the breather unit and the area
round the cap are kept clean and only
clean receptacles are used to top up the
oil, the cylindrical filter should only require
cleaning once every 12 months or 1200
hours.
Remove the filter as follows:
Clean the top of the tank and remove
the filter cap/breather unit.
Unscrew the self tapping screws or
remove the rivets securing the filter to
the tank.
Remove filter.
Cover the opening with a clean rag
while filter is removed.
Thorougly clean the filter in petrol and
air dry well before replacing.
Remove rag and replace filter, self
tapping screws or renew rivets.
Top-up with oil and replace
cap/breather unit.
Cleaning suction filter
The suction filter is fitted to the pipe
welded to the tank lid.
This should be removed and cleaned
every 12 months or 1200 hours.
Dismantling hydraulic system
Do not remove or expose any part of the
internal hydraulic gear in the event of a
breakdown, unless instructed to do so.
If you do, this may lead to further
complications in correcting the fault.
If necessary, contact your Distributor for
advice.
Recommended oils
The capacity of the hydraulic system is
approximately 22 litres (5 gallons).
(See the "Technical Information" section
for the correct oil to be used.)
TRANSMISSION
Keep the oil level in the gearbox up to the
level hole in the side of gearbox.
The level of the oil in the chain case must
be kept up to the level of filler plug on the
side of the case.
Clean around these points before
removing plugs.
(See the "Technical Information" section
for the correct oil to be used.)
Lubricators are fitted to the propeller shaft
and should be greased regularly.
SERVICING 3.3