Stiga AM 108 Li 48 V2 Manuel D'utilisation page 144

CAUTION
All work on the cutting means (disassembly,
sharpening, balancing, repairing, reassembly
and/or replacing) are demanding jobs that require
special skills as well as special tools. For safety
reasons, these jobs are best carried out at a
Specialised Centre.
WARNING
Always use original cutting means bearing the
code indicated in the "Technical Data".
NOTE
Given product evolution, the cutting means listed
in the "Technical Data" table may be replaced in
time with others having similar interchangeable
and operating safety features.
9.3 REPLACING OF FRONT / REAR
WHEELS
9.3.1 Preliminary procedures
DANGER
Use a suitable lifting device.
Before changing the wheels it is necessary to
complete some preliminary operations:
1. Position the machine on a solid and even
surface that guarantees stability of the
machine.
2. Stop the machine;
3. Remove the key from the ignition.
9.3.2 Replacing the rear wheels
1. Check that the closed jack is of a suitable
height for the distance of the application point
in relation to the ground.
2. Check that the jack is perfectly perpendicular
to the ground.
3. Engage the transmission so that the rear
wheels are locked (par. 6.3.1);
4. Place wooden wedges (fig. 23.A) in front of
and behind the two front wheels (fig. 23.B),
so as to prevent any accidental movement
of the machine when both rear wheels
(fig. 23.C) lift off the ground;
5. Position the jack (fig. 24.A) in the centre of
the two tie rods (fig. 24.B) connecting the
transmission units (fig. 24.C), inserting a
wooden shim (fig. 24.D) to avoid damaging
the tie rods and to ensure good stability at the
lifting point;
NOTE
The jack positioned as described above causes
both wheels to lift.
6. Use the jack to lift the machine enough to
easily extract the wheel to be replaced.
SAFETY INSTRUCTIONS
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.
7. Remove the cover (fig. 25.A).
8. Using a screwdriver, remove the snap
ring (fig. 25.B) and the shoulder washer
(fig. 25.C).
9. Remove the wheel to be changed.
10. Coat the axle (fig. 25.D) with grease.
11. Mount the spare wheel.
12. Carefully replace the shoulder washer, snap
ring and the cover.
NOTE
Check that the rear wheels are of the same
diameter and both inflated to the specified
pressure (fig. 26.A). If there is any misalignment
of the wheels (fig. 26.B) and uneven mowing, the
cutting-means assembly must be aligned by an
authorised service centre.
9.3.3 Replacing the front wheels
1. Engage the transmission so that the rear
wheels are locked (par. 6.3.1), in order to
prevent any accidental movement of the
machine;
2. Place a wooden shim approximately 2-3 cm
thick (fig. 27.A) under the front wheel
opposite (fig. 27.B) to the wheel to be
replaced, so that the wheel to be replaced
(fig. 27.C) also rises far enough so that it can
be easily removed.
3. Unscrew the nut (fig. 28.B) holding the screw
still (fig. 28.A).
4. Remove the screw (fig. 28.A) and washers
(fig. 28.C) and remove the wheel (fig. 28.D).
5. Mount the spare wheel.
6. Replace the screw and washers and tighten
the nut firmly in place (fig. 28.B).
EN - 21