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hot air outfl ow
cold air intake
39
English
Warning:
A poor combustion in the engine will lead to after-burning in the exhaust. This
increased exhaust temperature can seriously damage the catalyst. Such damage
and consequential damage to the engine are not covered by the Guarantee.
C. Spark plugs
The engine is of the 4-stroke type and has two cylinders in this chipper model. Every cylinder has
its own spark plug that will ensure that there is ignition every time the crankshaft rotates. This
feature ensures that the engine reacts strongly and can maintain its speed while loaded. If one
of the spark plugs is faulty, all of the load will be borne by one piston and there will only be one
ignition for every two revolutions. This can be compared with halving the power.
(See § 11.4.7 Checking and replacing the spark plug.)
D. Hydraulics problem
The hydraulic circuit is a closed system where the hydraulic pump pumps oil around and to drive
hydromotors at a specifi c pressure. The hydraulic valves determine the direction in which the oil will be
sent and monitor the maximum pressure level. Since the feed belt, feed roller, and output conveyor are
driven hydraulically, these hydraulics determine to a large extent the performance of the shredding.
We recommend consulting an authorized ELIET dealer should there be any problems with the hydrau-
lics. There are a number of simple checks that you can perform yourself to solve performance loss.
• Verify that the hydraulic speed governor has been adjusted to the required speed.
(See § 9.6.2 Setting the speed governor.)
• Always check whether the valves are in their switching position. Due to wear or deformation
of the control lever or rods, a valve may not be able to be switched to the correct position. This
leads to leads or pressure build-up in the valve and, therefore, the linked components in the
hydraulic circuit receive insuffi cient fl ow rate or working pressure.
• The oil may have been heated too much due to a short blockage of the feed or discharge
system. Allow the machine to cool down for a short period of time with safety guards folded
upwards and then continue your work.
E. Overheating
Good cooling is essential for both
the petrol and the hydraulic system
for optimum performance. The pet-
rol engine, in particular, produces
a lot of heat and, therefore, it is
important that there is a good fl ow
of the cooling air over the engine
and in the machine. A loss of power
may lead to a lack of cooling. Check
the cooling air fl ow (see §11.3.3
Cleaning the cooling system).