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The sieve screen may become blocked and, therefore, the shredding chamber may become full with
chippings. Ultimately the resistance that this produces will be too great and the engine will fail.
• Open the shredding chamber (see AP.A-P3).
• Remove the chippings from the shredding chamber and clean the sieve screen.
The discharge belt conveyor may stop, which means that the chippings that exit the shred-
ding chamber are no longer discharged. The accumulation of these chippings will fully seal the
discharge and the machine will eventually fail. The output conveyor that has stopped will also
disrupt the fl ow of oil in the hydraulic circuit which, in turn, will lead to a build up of pressure that
requires additional power from the petrol engine. This in combination with additional resistance
of the overfull shredding chamber, will speed up engine failure.
• Check the discharge belt conveyor for correct operation (see §9.7.5 & § 11.5.7.3).
• Open the shredding chamber (see § AP.A-P3).
• Remove the chippings form the shredding chamber.
E. Technical faults
If the above checks could not determine the cause, the problem will probably be of a technical
nature. This may be related to fault in the engine or a fault in the electric system of the machine.
Please contact your authorized ELIET dealer or a service outlet of the engine make.
9.7.2 Engine losing power
If you notice that the machine attains a lower power during a long period of time and performance has
signifi cantly been reduced, trace the cause for this. The following items may be related to this issue:
a) Blade system
b) Dirty air fi lter (See § 11.4.4
Cleaning the air fi lter.)
c) Spark plugs Glow plugs (See § 11.4.7 Checking the spark plugs.)
d) Hydraulics problem
e) Overheated
f) Fuel supply problems
g) Poor combustion
Analyse the above elements in the order given to determine the cause for the reduced performance:
A. Blade system
Since the blades are in charge of the shredding, fi rst check the state of the blades.
(See § 11.5.1 Routine check of the blades.)
B. Dirty air fi lter
If the air fi lter is clogged with duct, the engine may be receiving insuffi cient air and the under-
pressure in the carburettor will increase, which means that more petrol is sucked in. This disrupts
the optimal petrol-air ratio with regard to combustion and entails a large performance loss and
additional consumption.
(See § 11.4.4 Cleaning the air fi lter.)