Technical information

Remove the locking pins and fully lower
the jack legs. Do not replace the
locking pins at this point.
Place the hydraulic jack below the front
axle as close to the jack leg support as
possible.
Unscrew the threaded extension of the
jack to its full height and ensure that the
valve at the base is closed. Insert the
jack handle and operate the pump to
raise the jack and lift the mixer. Do not
raise the mixer beyond the point at
which the the jack leg locking pin can
be re-inserted into the upper of the
three holes.
When the locking pin is fully in place,
open the valve at the base of the jack
and lower the mixer so that the weight
is taken by the jack leg.
Remove the hydraulic jack and
reposition it as close as possible to the
opposite front axle jack leg, and repeat
the operation until the locking pin can
be fully re-inserted.
Lower and remove the jack and repeat
the operation at each end of the rear
axle.
Lower the sprags to lock the front axle,
remove the towbar and wheels/stub
axles.
IMPORTANT: Never use the jack to
raise more than one wheel off the
ground at the same time.
If a batch weigher is fitted, make certain
that there are at least 50mm (2 inches)
clearance between the ground and the
base of the hopper when the loadcell
striker is resting on the loadcell striker
guide.
If a dragline feeder is fitted, erect the
electric cable support mast.
Remove the hopper safety chain. This is
done by turning the engine by hand, with
the hopper control lever held in the RAISE
position. When the hopper is fully up,
release the chain and lower the hopper.
Check level of the hydraulic oil in the
hydraulic tank with the hopper down.
Oil should be visible, but not more than
12mm (l/2") up from the bottom of the
filler.
Connect the water supply to the water
tank inlet. The minimum water supply is
45 litres (10 galls) per minute if continuous
operation of the mixer is required. Do not
use excessive water pressure as this may
damage the inlet valve.
If feeding from an elevated static tank, the
minimum head of water necessary above
the centre of the inlet valve is 1830mm
(6ft).
To ensure continuous operation, the bore
of the supply hose must be 25mm (1”)
minimum and of as short a run as
possible.
Assemble the portable feed apron, if one
is to be used, placing it squarely in front of
the mixer so that the hopper does not foul
it when being raised or lowered.
The horizontal rubber flap prevents
materials from failing between the hopper
and ramp.
Finally, stake the apron securely in
position, using the four picketing lugs on
the sides.
Extend the centre position of the ramp to
separate the aggregate by fitting boards.
Pre-start check
Before starting the mixer, make the
following checks:
a Check that all guards are in position
and fitted correctly. The covers on the
machine provide adequate ventilation
for the engine, so keep them in
position.
b Check that all control levers are in
neutral.
c Check that no persons are in or on the
machine.
d Electrically driven mixers:
Always ensure that the power supply
is correctly connected or
disconnected by a qualified
electrician.
OPERATION 2.3