5.3 MAINTENANCE ON THE RUBBER TRACKS
5.3.1
C
HECKING THE TRACK TENSION
Stop the machine on firm and level ground. Lift the machine and support it secu‐
rely and safely by placing stable supports under the chassis of the undercarriage.
At the centre roller on the undercarriage, measure the distance A of the bottom of
the roller from the rigid inner part of the rubber tracks. The tension of the track is
normal if A is between 10 and 15 mm.
If the tension of the track is not within the values specified above, too loose or too
tight, follow the procedure illustrated in the paragraph below.
5.3.2
O
PERATIONS FOR LOOSENING
/
TIGHTENING THE TRACK
The grease contained in the hydraulic track is under pressure. For this reason, do
not loosen the grease valve 1 more than one turn; if the valve is too loose, the grease
may be released due to pressure, placing the operator at risk. Never loosen the
grease nipple 2.
When gravel or mud gets stuck between the cogwheel and the links of the track,
remove it before loosening the track.
1. To loosen the track, slowly unscrew valve 1 anticlockwise, no more than one
turn. One turn of valve 1 is sufficient to loosen the track.
2. If the grease does not start to be drained, rotate the track slowly.
3. When the right track tension has been found, turn valve 1 clockwise and tighten
it. Remove all traces of grease.
4. To tighten the track, connect a grease gun to the grease nipple 2 and add grease
until the tension of the track is within the specified values.
33
O
O
P
P
E
E
R
R
A
A
T
T
I
I
O
O
N
N
A
A
N
N
D
D
M
M
A
A
I
I
N
N
T
T
E
E
N
N
A
A
N
N
C
C
E
E
M
M
A
A
N
N
U
U
A
A
L
L
TP2000
MUTP2000171893021216
A
