Use and Maintenance Manual
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002.108A of _27/09/2021
Square Baler
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M 60 Mini/S
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M 60 Mini
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M 60 Super
76
ENGLIS
H
7.11 Toothed wheel adjustment
The function of the toothed wheel is to activate the tying stage at a certain bale length.
The operations comprising a complete cycle are shown in Fig. 7.31.
Operation A Fig. 7.32: starting situation of the toothed sector in abutment and meshing with the
toothed wheel; a too-far-advanced position of the wheel does not allow proper contact between the
toothed sector and the toothed wheel.
Operation B Fig. 7.32: the toothed sector, in contact with the rotation of the toothed wheel, rises to
the maximum height. At this point the tying stage is activated, the toothed wheel reaches position
7 of the toothed sector, the support rotates in shaft 8 and the lug 2 is freed from the stop 3, the
knotter shaft 6 (Fig. 7.32) rotates (the tying stage begins).
Operation C Fig. 7.32: During the tying stage, the toothed sector distances itself from the contact
with the toothed wheel and goes back into the starting position. In this operation it is necessary to
adjust the position of the toothed wheel so that there is a minimal play of 2.5-3 mm throughout its
downward stroke, indicated by X in Fig. 7.32.
Operation D Fig. 7.32: the toothed sector rests against the screw 4 (Fig. 7.32), blocks the rotation of
the knotter shaft 6 by means of the lug 2 in contact with the stop 3 (Fig. 7.32); the making of a
new bale begins again.
The correct toothed wheel position is that for which during operation C (Fig. 7.32), the measurement
X must be between 2.5 and 3 mm. To obtain this measurement, the entire toothed wheel bracket 5
(Fig. 7.31) is moved by means of the fastening screws.
Check that, with the toothed sector lever (ref. A, D - Fig. 7.32) in the rest position, the release lever 3
(Fig. 7.32) fits together completely with the surface of the coupling lug 2 (Fig. 7.32 ); the knotter
shaft must remain stationary throughout the forming of the bale until the desired length is reached.
Check that during operation A there is close contact between the toothed wheel and the toothed sector
9 (Fig. 7.32) the entire time the toothed sector is rising; if slippage occurs between the toothed sector
and the freewheel, the bale length will not be regular.
Fig. 7.31
