E-7
3.7 Operating The Machine
When the machine is set up as described in the previous pages, it is now ready to be operated. To operate
machine use the following sequence:-
1 TAIL CONVEYOR
2 MID-GRADE SIDE CONVEYOR
3 FINES CONVEYORS
4 SCREENBOX
5 FEEDER CONVEYOR
DO NOT START THESE SYSTEMS
IF THEY ARE FULL OF MATERIAL
CLEAR ANY MATERIAL AWAY
BEFORE STARTING.
NOTE:-
Engine revs are factory
preset at 2000 R.P.M. Any alterations
to these settings, to increase speed,
may lead to premature failure and
subsequent warranty loss
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1:- Turn machine on using the
instructions set out in section 3.3
2:- Increase revs to 2000 R.P.M
using the throttle at the side of
the control box.
Prior to loading material into machine, ensure that machine is not vibrating or rocking excessively. Stabilise the
machine by relocating to more suitable ground.
LOADING MATERIAL INTO MACHINE
1. Feeder MUST be running PRIOR to feed material being placed upon it.. DO NOT start feeder if it is full of material.
2. Material which is larger than 80% of feeder discharge chute should not be presented to the feeder. STOP MACHINE and
remove any large pieces of material with the appropriate equipment. DO NOT use excavators to force any material into feeder as
any damage occurred from this action will invalidate any EXTEC warrantees.
3. Material should be fed carefully, (not dropped onto feeder) from about 300mm above feeder. Ensure that feeder is evenly
loaded over its entire length this is to help with screening fines material and to maximise production.
4. It is recommended that an excavator is used to load material into Feeder. DO NOT OVER FILL FEEDER.
5. For maximum output and minimum wear, it is recommended that the Screenbox is fed consistently with the supply of material
being steady and constant. STOP/START OPERATION OF THE FEEDER SHOULD BE AVOIDED.
6. Pressure sensors are fitted to the Hydraulic Circuit such that, if either side conveyor should become over burdened with
material or jammed, then the feeder will stop until the material is reduced to an acceptable level. If the conveyor cannot clear itself
then the material will have to be cleared manually. If so then the machine should be shut down and ignition key removed before
commencing any work on the machine.
Machine Start Sequence
1
2
3
4
5
BEFORE STARTING THE MID-GRADE SIDE CONVEYOR ENSURE THAT
THE BOTTOM SECTION IS LOCKED IN ITS LOWERED POSITION.
Section 3 Page 19
E-7
Operating The Machine
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1:- Adjusting Fines Collector
Conveyor speed
2:- Adjusting Mid-Grade side
Conveyor speed
3:- Adjusting Tail Conveyor
speed
When the machine is set up as described in the previous pages, it is now ready to be
used to screen the desired material. DO NOT START SCREENING UNTIL YOU
HAVE READ AND FULLY UNDERSTOOD THIS MANUAL
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3:- Adjusting Feeder Conveyor
speed
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Section 3 Page 20
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