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
52
ENGLIS
H
7.2.3 Chain and belt tension adjustment
The belt (ref. 12 Fig. 7.7) that transmits power to the pickup must be correctly tensioned; the tension
can be increased or decreased by means of the tensioner (ref. 13 Fig. 7.7).
The correct tension is checked as follows: applying a force F of 60 N (Fig. 7.7 - applied at the middle
of the free side directed perpendicular to the belt itself), the belt must have a maximum deflection of
9 mm.
The chains must be tensioned for correct use.
Checking on the free side, the chains must be tensioned so that:
chain 11 (Fig. 7.7) must flex max. 1.5 mm;
chain 1 (Fig. 7.7) must flex max. 1 mm;
chain 3 (Fig. 7.6) must flex max. 1 mm.
7.3 Bale chamber adjustment
The adjustment of the bale chamber involves two parts:
- the plunger guides,
- carriage knife,
The plunger guide must be adjusted first, as it affects the position of the carriage and the knife.
Before making this adjustment, thoroughly clean the chamber and the carriage, so as to avoid
adjustment errors caused by the presence of residues.
7.3.1 Plunger guides adjustment
The plunger is mounted on sealed bearings and is guided by steel blades. In the bale chamber it slides
on adjustable steel guides. The lateral adjustment must be made such as to leave a space of 0.5 mm in
which the plunger can move. Despite the minimal play, the plunger must not be stopped in its stroke.
This adjustment should be done rarely, unless it is noted that the plunger has too much play. To
obtain the correct clearance of the plunger, it is necessary to adjust the left side guides of the plunger
(ref. 10, Fig. 7.8).
Loosen the bolts 1 and 2 (Fig. 7.8) and then push the guides (first the lower then the upper one) by
means of the pressure bolts 3 and 4 (Fig. 7.8) until the plunger side guides are 0.5 mm or less from
the left side guides of the chamber.
At this point, retighten the bolts 1 and 2 (Fig. 7.8).
The aforementioned adjustment on the left guides makes it possible to compensate the excessive play
due to the wear of the left guides and also the small amount of play due to a possible limited wear of
the right guide. (Fig. 7.8)
Once the left side guides have been adjusted, it is necessary to compensate any play that may occur
between the upper part of the upper right corner guide and the slide block 6 (Fig. 7.8) by moving, by
means of the adjustment and fastening screws, the aforementioned slide block so that there is a
maximum play of not more than 0.5 mm.
