Electronic Circuit Board; Replacing A Fuse - EMAK KTK 102H Serie Manual De Instrucciones

For models with rear collection:
• The maximum possible jack height
when closed is 110 mm. (fig. 39).
• Position the jack under the rear plate (fig.
40.A) at 180 mm from the side edge.
For side discharge models:
• The maximum possible jack height
when closed is 110 mm. (fig. 41).
• Position the jack under the rear axle, in the
point indicated in the diagram (fig. 42.A).
NOTE In this position the jack allows you
to only raise the wheel to be changed.
8.3.3 Choice and positioning of the
jack on the front wheels
1. Position some wooden wedges (fig. 43.A)
at the base of the wheel (fig. 43.B) behind
the wheel to be changed (fig. 43.C).
2. The maximum possible jack height
when closed is 110 mm.
NOTE Select the position of the jack
depending on the type of machine.
3. Position the jack under the front
part of the machine (fig. 44.A, 45.A,
46.A) as indicated in the figure.
NOTE The jack must be positioned under
the flat part of the support (fig. 44.B, 45.B).
NOTE The jack must be positioned under
the central rib of the support (fig. 46.B).
8.3.4 Changing the wheel
IMPORTANT Make certain the machine
remains still and stable during the lifting process.
If you notice anything out of the ordinary,
lower the jack immediately, check and resolve
any problems and lift the machine again.
1. Slide the cover off (fig. 47.A)
before raising the machine.
2. Raise it enough to extract the wheel easily.
3. Using a screwdriver, remove
the snap ring (fig. 47.B) and the
shoulder washer (fig. 47.C).
4. Remove the wheel to be changed.
5. Coat the axle (fig. 47.D) with
lubricating grease.
6. Mount the spare wheel.
7. Carefully replace the shoulder
washer and snap ring.
8. Rest the wheel on the ground
replace the cover (fig. 47.A).
IMPORTANT Check that the two rear wheels
are the same height (fig. 48.A) and that the
difference between the external diameters of
the two wheels (fig. 48.B) is no greater than
8-10 mm. On the contrary, to avoid uneven
mowing, the cutting device assembly must be
aligned by an Authorised Service Centre.
8.3.5 Repairing or changing tyres
Every replacement or repair of a tyre following
a puncture must be performed at a specialist
tyre repair centre in accordance with the
procedures for the type of tread used.

8.4 ELECTRONIC CIRCUIT BOARD

The electronic circuit board is a component
fitted below the dashboard which
manages all machine safety devices.
The electronic board is fitted with a self-
rearming protection device that interrupts the
circuit in the event of a fault on the electrical
system; when this device is tripped, it stops the
engine and generates an acoustic signal that
can only be disabled by removing the key.
The circuit is re-armed automatically after
a few seconds; identify and eliminate the
cause or causes of the fault in order to
prevent subsequent interruptions.
IMPORTANT To avoid tripping the
electronic board protection device:
– do not invert the battery terminals;
– do not operate the machine without the
battery, as this would cause the battery
charge regulator to function irregularly;
– take care to avoid short circuits.

8.5 REPLACING A FUSE

The machine is fitted with fuses (fig. 49.A) with
different capacities and functions. Specifically:
– 10 A fuse = protects the electronic board
general and power circuits, when it
blows the machine stops running and the
dashboard light is extinguished (par. 5.16)
– 25 A fuse = protects the battery
recharge circuit. When it blows, the
battery gradually runs down and the
machine will have problems starting.
– 5 A fuse = protects the auxiliary 12 V
power supply socket for the attachments.
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